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| 1 | Rice DENSE AND ERECT PANICLE 2 is essential for determining panicle outgrowth and elongation显示文摘包括谷物尺寸和圆锥花序形态学,圆锥花序的建筑学直接决定谷物产量。圆锥花序直立,为在中国的北部分完成理想的植物建筑学被选择,引起了米饭 breeders 的增加的注意。这里,稠密、直立的圆锥花序 2 (dep2 ) 异种,显示出稠密、直立的圆锥花序显型,被识别。没有任何已知的功能的领域, DEP2 编码植物特定的蛋白质。表示介绍 DEP2 表明它高度在年轻纸巾被表示,与在年轻圆锥花序的大多数丰富。词法并且表示分析显示在 DEP2 的那个变化主要影响脊柱和主要、第二等的分支的快速的延伸,但是不损害圆锥花序 primordia 的开始或形成。进一步的分析建议在 dep2 的圆锥花序长度的减少被一个缺点在圆锥花序的指数的延伸期间在房间增长引起。尽管有在 dep2 异种的一种更紧缩的植物类型,在谷物生产的重要改变都没在野类型和 dep2 异种之间被发现。因此, DEP2 的学习不仅加强我们圆锥花序建筑学的分子的基因基础的理解而且为米饭繁殖有重要含意。 | Feng Li Wenbo Liu Jiuyou Tang Jinfeng Chen Hongning Tong Bin Hu Chunlai Li Jun Fang Mingsheng Chen Chengcai Chu | 2010 | Cell Research2010，20，7： | 51 |
| 2 | Terrestrial carbon sinks in China and around the world and their contribution to carbon neutrality显示文摘Enhancing the terrestrial ecosystem carbon sink(referred to as terrestrial C sink) is an important way to slow down the continuous increase in atmospheric carbon dioxide(CO_(2)) concentration and to achieve carbon neutrality target.To better understand the characteristics of terrestrial C sinks and their contribution to carbon neutrality,this review summarizes major progress in terrestrial C budget researches during the past decades,clarifies spatial patterns and drivers of terrestrial C sources and sinks in China and around the world,and examines the role of terrestrial C sinks in achieving carbon neutrality target.According to recent studies,the global terrestrial C sink has been increasing from a source of (-0.2±0.9) Pg C yr^(-1)(1 Pg=1015g)in the 1960s to a sink of (1.9±1.1) Pg C yr^(-1) in the 2010s.By synthesizing the published data,we estimate terrestrial C sink of 0.20–0.25 Pg C yr^(-1) in China during the past decades,and predict it to be 0.15–0.52 Pg C yr^(-1) by 2060.The terrestrial C sinks are mainly located in the mid-and high latitudes of the Northern Hemisphere,while tropical regions act as a weak C sink or source.The C balance differs much among ecosystem types:forest is the major C sink;shrubland,wetland and farmland soil act as C sinks;and whether the grassland functions as C sink or source remains unclear.Desert might be a C sink,but the magnitude and the associated mechanisms are still controversial.Elevated atmospheric CO_(2) concentration,nitrogen deposition,climate change,and land cover change are the main drivers of terrestrial C sinks,while other factors such as fires and aerosols would also affect ecosystem C balance.The driving factors of terrestrial C sink differ among regions.Elevated CO_(2) concentration and climate change are major drivers of the C sinks in North America and Europe,while afforestation and ecological restoration are additionally important forcing factors of terrestrial C sinks in China.For future studies,we recommend the necessity for intensive and long-term ecosystem C monitoring over broad geographic scale to improve terrestrial biosphere models for accurately evaluating terrestrial C budget and its dynamics under various climate change and policy scenarios. | Yuanhe Yang Yue Shi Wenjuan Sun Jinfeng Chang Jianxiao Zhu Leiyi Chen Xin Wang Yanpei Guo Hongtu Zhang Lingfei Yu Shuqing Zhao Kang Xu Jiangling Zhu Haihua Shen Yuanyuan Wang Yunfeng Peng Xia Zhao Xiangping Wang Huifeng Hu Shiping Chen Mei Huang Xuefa Wen Shaopeng Wang Biao Zhu Shuli Niu Zhiyao Tang Lingli Liu Jingyun Fang | 2022 | Science China(Life Sciences)2022，65，5： | 32 |
| 3 | Estimation of daily PM2.5 concentration and its relationship with meteorological conditions in Beijing显示文摘When investigating the impact of air pollution on health, particulate matter less than 2.5 μm in aerodynamic diameter(PM_(2.5)) is considered more harmful than particulates of other sizes. Therefore, studies of PM_(2.5) have attracted more attention. Beijing, the capital of China,is notorious for its serious air pollution problem, an issue which has been of great concern to the residents, government, and related institutes for decades. However, in China,significantly less time has been devoted to observing PM_(2.5) than for PM_(10). Especially before 2013, the density of the PM_(2.5) ground observation network was relatively low, and the distribution of observation stations was uneven. One solution is to estimate PM_(2.5) concentrations from the existing data on PM_(10). In the present study, by analyzing the relationship between the concentrations of PM_(2.5) and PM_(10), and the meteorological conditions for each season in Beijing from 2008 to 2014, a U-shaped relationship was found between the daily maximum wind speed and the daily PM concentration, including both PM_(2.5) and PM_(10). That is, the relationship between wind speed and PM concentration is not a simple positive or negative correlation in these wind directions; their relationship has a complex effect, with higher PM at low and high wind than for moderate winds.Additionally, in contrast to previous studies, we found that the PM_(2.5)/PM_(10) ratio is proportional to the mean relative humidity(MRH). According to this relationship, for each season we established a multiple nonlinear regression(MNLR) model to estimate the PM_(2.5) concentrations of the missing periods. | Qian Yin Jinfeng Wang Maogui Hu Hoting Wong | 2016 | Journal of Environmental Sciences2016，28，10： | 11 |
| 4 | Jasmonic acid carboxyl methyltransferase regulates development and herbivory-induced defense response in rice显示文摘Jasmonic acid(JA) and related metabolites play a key role in plant defense and growth. JA carboxyl methyltransferase(JMT) may be involved in plant defense and development by methylating JA to methyl jasmonate(Me JA) and thus influencing the concentrations of JA and related metabolites. However, no JMT gene has been well characterized in monocotyledon defense and development at the molecular level. After we cloned a rice JMT gene,Os JMT1, whose encoding protein was localized in the cytosol, we found that the recombinant Os JMT1 protein catalyzed JA to Me JA. Os JMT1 is up-regulated in response to infestation with the brown planthopper(BPH; Nilaparvata lugens). Plants in which Os JMT1 had been overexpressed(oeJMT plants) showed reduced height and yield. These oe-JMT plants also exhibited increased Me JA levels but reduced levels of herbivore-induced JA and jasmonoyl-isoleucine(JAIle). The oe-JMT plants were more attractive to BPH female adults but showed increased resistance to BPH nymphs,probably owing to the different responses of BPH female adults and nymphs to the changes in levels of H_2O_2 and Me JA in oe-JMT plants. These results indicate that Os JMT1,by altering levels of JA and related metabolites, plays a role in regulating plant development and herbivore-induced defense responses in rice. | Jinfeng Qi Jiancai Li Xiu Han Ran Li Jianqiang Wu Haixin Yu Lingfei Hu Yutao Xiao Jing Lu Yonggen Lou | 2016 | Journal of Integrative Plant Biology2016，58，6： | 10 |
| 5 | BLT1 in dendritic cells promotes Th1/Th17 differentiation and its deficiency ameliorates TNBS-induced colitis显示文摘Leukotriene B4(LTB4)synthesis is enhanced in the colonic mucosa in patients with inflammatory bowel disease(IBD).BLT1,a highaffinity receptor for LTB4,exhibits no effect on the progression of dextran sodium sulfate(DSS)-induced colitis,which mostly relies on innate immunity.Here,we reported that BLT1 regulates trinitrobenzene sulfonic acid(TNBS)-induced colitis,which reflects CD4+T-cell-dependent adaptive immune mechanisms of IBD.We found that BLT1 signaling enhanced the progression of colitis through controlling the production of proinflammatory cytokines by dendritic cells(DCs)and modulating the differentiation of Th1 and Th17.BLT1−/−mice displayed an alleviated severity of TNBS-induced colitis with reduced body weight loss and infiltrating cells in the lamina propria.BLT1 deficiency in DCs led to reduced production of proinflammatory cytokines,including IL-6,TNF-α,and IL-12,and these results were further confirmed via treatment with a BLT1 antagonist.The impaired cytokine production by BLT1−/−DCs subsequently led to reduced Th1 and Th17 differentiation both in vitro and in vivo.We further performed a conditional DC reconstitution experiment to assess whether BLT1 in DCs plays a major role in regulating the pathogenesis of TNBS-induced colitis,and the results indicate that BLT1 deficiency in DCs also significantly reduces disease severity.The mechanistic study demonstrated that BLT1-regulated proinflammatory cytokine production through the Gαiβγsubunit-phospholipase Cβ(PLCβ)-PKC pathway.Notably,we found that treatment with the BLT1 antagonist also reduced the production of proinflammatory cytokines by human peripheral blood DCs.Our findings reveal the critical role of BLT1 in regulating adaptive immunity and TNBS-induced colitis,which further supports BLT1 as a potential drug target for adaptive immunity-mediated IBD. | Jinfeng Zhou Weiming Lai Wanjie Yang Juping Pan Hu Shen Yingying Cai Cuixia Yang Ningjia Ma Yue Zhang Ru Zhang Xin Xie Zhongjun Dong Yuan Gao Changsheng Du | 2018 | Cellular & Molecular Immunology2018，15，12： | 9 |
| 6 | Heterogeneous lamellar-edged Fe-Ni(OH)_(2)/Ni_(3)S_(2)nanoarray for efficient and stable seawater oxidation显示文摘Development of efficient non-precious catalysts for seawater electrolysis is of great significance but challenging due to the sluggish kinetics of oxygen evolution reaction(OER)and the impairment of chlorine electrochemistry at anode.Herein,we report a heterostructure of Ni_(3)S_(2)nanoarray with secondary Fe-Ni(OH)_(2)lamellar edges that exposes abundant active sites towards seawater oxidation.The resultant Fe-Ni(OH)_(2)/Ni_(3)S_(2)nanoarray works directly as a free-standing anodic electrode in alkaline artificial seawater.It only requires an overpotential of 269 mV to afford a current density of 10 mA·cm^(-2)and the Tafel slope is as low as 46 m V·dec^(-1).The 27-hour chronopotentiometry operated at high current density of 100 mA·cm^(-2)shows negligible deterioration,suggesting good stability of the Fe-Ni(OH)_(2)/Ni_(3)S_(2)@NF electrode.Faraday efficiency for oxygen evolution is up to〜95%,revealing decent selectivity of the catalyst in saline water.Such desirable catalytic performance could be benefitted from the introduction of Fe activator and the heterostructure that offers massive active and selective sites.The density functional theory(DFT)calculations indicate that the OER has lower theoretical overpotential than Cl_(2) evolution reaction in Fe sites,which is contrary to that of Ni sites.The experimental and theoretical study provides a strong support for the rational design of high-performance Fe-based electrodes for industrial seawater electrolysis. | Baihua Cui Zheng Hu Chang Liu Siliang Liu Fangshuai Chen Shi Hu Jinfeng Zhang Wei Zhou Yida Deng Zhenbo Qin Zhong Wu Yanan Chen Lifeng Cui Wenbin Hu | 2021 | Nano Research2021，14，4： | 7 |
| 7 | Source apportionment of PM_(2.5)light extinction in an urban atmosphere in China显示文摘Haze in China is primarily caused by high pollution of atmospheric fine particulates(PM2.5).However, the detailed source structures of PM2.5 light extinction have not been well established, especially for the roles of various organic aerosols, which makes haze management lack specified targets. This study obtained the mass concentrations of the chemical compositions and the light extinction coefficients of fine particles in the winter in Dongguan, Guangdong Province, using high time resolution aerosol observation instruments. We combined the positive matrix factor(PMF) analysis model of organic aerosols and the multiple linear regression method to establish a quantitative relationship model between the main chemical components, in particular the different sources of organic aerosols and the extinction coefficients of fine particles with a high goodness of fit(R^2= 0.953). The results show that the contribution rates of ammonium sulphate,ammonium nitrate, biomass burning organic aerosol(BBOA), secondary organic aerosol(SOA) and black carbon(BC) were 48.1%, 20.7%, 15.0%, 10.6%, and 5.6%, respectively. It can be seen that the contribution of the secondary aerosols is much higher than that of the primary aerosols(79.4% versus 20.6%) and are a major factor in the visibility decline. BBOA is found to have a high visibility destroying potential, with a high mass extinction coefficient, and was the largest contributor during some high pollution periods. A more detailed analysis indicates that the contribution of the enhanced absorption caused by BC mixing state was approximately 37.7% of the total particle absorption and should not be neglected. | Zijuan Lan Bin Zhang Xiaofeng Huang Qiao Zhu Jinfeng Yuan Liwu Zeng Min Hu Lingyan He | 2018 | Journal of Environmental Sciences2018，30，1： | 7 |
| 8 | Simultaneous quantification of ginsenoside Rg1 and its metabolites by HPLC–MS/MS:Rg1 excretion in rat bile, urine and feces显示文摘Ginsenoside Rg1(Rg1), the major effective component of ginseng, has been shown to have multiple bioactivities, but low oral bioavailability. The aim of this study was to develop a simple, sensitive and rapid high performance liquid chromatography–tandem mass spectrometry(LC–MS/MS) method, which could be used to validate and quantify the concentrations of Rg1 and its metabolites in Sprague-Dawley rat bile,urine, and feces after oral administration(25 mg/kg). Calibration curves offered satisfactory linearity(r40.995)within the determined ranges. Both intra-day and inter-day variances were less than 15%, and the accuracy was within 80–120%. The excretion recoveries of Rg1, ginsenoside Rh1(Rh1), and protopanaxatriol(Ppt) in bile,urine, and feces combined were all greater than 70%. The fecal excretion recoveries of Rg1, Rh1, and Ppt were40.11%, 22.19%, and 22.88%, respectively, whereas 6.88% of Rg1 and 0.09% of Rh1 were excreted in bile.Urinary excretion accounted for only 0.04% of Rg1. In conclusion, the observed excretion profiles for Rg1 and its metabolites after oral administration are helpful for understanding the poor oral bioavailability of Rg1 and will aid further investigations of Rg1 as a pharmacologically active component. | Chiyu He Ru Feng Yupeng Sun Shifeng Chu Ji Chen Chao Ma Jie Fu Zhenxiong Zhao Min Huang Jiawen Shou Xiaoyang Li Yuzhu Wang Jinfeng Hu Yan Wang Juntian Zhang | 2016 | Acta Pharmaceutica Sinica B2016，6，6： | 6 |
| 9 | Thermal Shock-Activated Spontaneous Growing of Nanosheets for Overall Water Splitting显示文摘Nanomaterials based on nickel foam(NF) have been widely applied in energy conversion and storage field.Traditional synthesis methods such as hydrothermal method which is dangerous and high cost limited the scalable developments.Herein,we report a fast,simple,and low-cost synthesis method of nanomaterials based on NF by Joule-heating and water soaking treatment.Thin carbon-coated CoS on NF(NF-C/CoS) was synthesized by Joule-heating for a few seconds with rapid cooling.And then,NF-C/CoS/NiOOH with core-shell heterostructure was fabricated by soaking treatment of NF-C/CoS in water on which NiOOH nanosheets grew spontaneously.The formation mechanism is proposed that the coordination complex precursor converts into C/CoS on NF driven by Joule-heating,and the nickel on the surface of NF is activated to form metastable nickel simultaneously.The metastable nickel reacting with water leads to the formation of NiOOH,and the induction of CoS makes NiOOH grow continuously.This synthesis technology provides a new route to manufacture NF-based nanostructures,and the as-fabricated NF-C/CoS/NiOOH exhibits great potential as electrocatalyst for oxygen evolution reaction and hydrogen evolution reaction. | Han Wu Qi Lu Jinfeng Zhang Jiajun Wang Xiaopeng Han Naiqin Zhao Wenbin Hu Jiajun Li Yanan Chen Yida Deng | 2020 | Nano-Micro Letters2020，12，11： | 6 |
| 10 | A survey of next generation mobile communications researchin China显示文摘With the rapid development of wireless communication networks, the fourth generation (4G) has emerged to move beyond the limitations of the third generation (3G), with increased bandwidth, enhanced quality of services, and reduced costs of resources. In this paper, we discuss the key technologies of 4G and focus on surveying the ongoing research in 4G communications in China. The 4G technologies under investigation include multicarrier transmission, multiple antenna techniques, carrier aggregation, relays, cognitive radio, distributed antenna systems, network convergence, and network self-optimization. These technologies are the building blocks of 4G and contribute largely to the requirements of International Mobile Telecommunications Advanced (IMT-Advanced). For each technology, its benefits, research topics, and some existing approaches are examined. Finally, we briefly discuss the challenges and future research issues in 4G systems. | TIAN JinFeng 1,2 , ZHENG XiaoYing 2,3 , HU HongLin 1,2 YOU XiaoHu 1,3 1 Shanghai Research Center for Wireless Communications (WiCO), Shanghai 200335, China 2 Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences (CAS), Shanghai 200050, China 3 National Mobile Communications Research Laboratory, Southeast University (SEU), Nanjing 210096, China | 2011 | Chinese Science Bulletin2011，56，27： | 6 |
| 11 | Weak harmonic signal detection method in chaotic interference based on extended Kalman filter显示文摘The traditional methods of weak harmonic signal detection under strong chaotic interference often suffer from high computational complexity and poor performance. In this paper, an Extended Kalman Filter (EKF) based detection method is proposed for the detection of weak harmonic signal. The EKF method avoids matrix inversion by iterating measurement equation and state equation, which simultaneously improves the robustness and reduces the complexity. Compared with the existing detection methods, the proposed method has the following advantages: 1) it has better performance than the neural network method;2) it has similar performance with the optimal filtering method, but with lower computational complexity;3) it is more robust compared with the optimal filtering method. | Chengye Lu Sheng Wu Chunxiao Jiang Jinfeng Hu | 2019 | Digital Communications and Networks2019，5，1： | 6 |
| 12 | Performances of improved Tent chaos-based FM radar signal显示文摘A novel algorithm is proposed to solve the poor performance problem of the Tent chaos-based frequency modulation(FM) signal for range-Doppler imaging,which takes it into complex multi-segment system by increasing its segments.The simulation results show that the effectiveness of the proposed algorithm,as well as the performance of the improved Tent FM signal is obvious in a multipath or noise propagation environment. | Shaobin Xie Zishu He Jinfeng Hu Lidong Liu Jichun Pan | 2012 | Journal of Systems Engineering and Electronics2012，23，3： | 6 |
| 13 | Molecular-scale integrated multi-functions for organic lightemitting transistors显示文摘Organic light-mitting transistors(OLETs)integrate the functions of light-emitting diodes and field-effect transistors into a unique device,opening a new door for optoelectronics.However,there is still a challenge due to the absence of high quality organic semiconductors for OLETs.Herein,we reported a novel molecule 2,6-di(anthracen-2-yl)naphthalene(2,6-DAN),which exhibited mobility of up to 19 cm2:V'-s'and an absolute fluorescence quantum yield of 37.09%,which are good values for organic semiconductors.Moreover,OLETs based on 2,6-DAN single crystals showed bright yellowish-green emission and well-balanced ambipolar charge transport.The excellent ratio of hole to electron mobilty can reach up to 0.86,which is superior to most single component OL ETs in typical device configurations reported so far. | Lei Zheng Jinfeng Li Ke Zhou Xixia Yu Xiaotao Zhang Huanli Dong Wenping Hu | 2020 | Nano Research2020，13，7： | 4 |
| 14 | Bacterial Effectors Induce Oligomerization of Immune Receptor ZAR1 In Vivo显示文摘Plants utilize nucleotide-binding,leucine-rich repeat receptors(NLRs)to detect pathogen effectors,leading to effector-triggered immunity.The NLR ZAR1 indirectly recognizes the Xanthomonas campestris pv.campestris effector AvrAC and Pseudomonas syringae effector HopZIa by associating with closely related receptor-like cytoplasmic kinase subfamily XII-2(RLCK XII-2)members RKS1 and ZED1,respectively.ZAR1,RKS1,and the AvrAC-modified decoy PBL2ump form a pentameric resistosome in vitro,and the ability of resistosome formation is required for AvrAC-triggered cell death and disease resistance.However,it remains unknown whether the effectors induce ZAR1 oligomerization in the plant cell.In this study,we show that both AvrAC and HopZ1 a can induce oligomerization of ZAR1 in Arabidopsis protoplasts.Residues mediating ZAR1-ZED1 interaction are indispensable for HopZIa-induced ZAR1 oligomerization in vivo and disease resistance.In addition,ZAR1 residues required for the assembly of ZAR1 resistosome in vitro are also essential for HopZIa-induced ZAR1 oligomerization in vivo and disease resistance.Our study provides evidence that pathogen effectors induce ZAR1 resistosome formation in the plant cell and that the resistosome formation triggers disease resistance. | Meijuan Hu Jinfeng Qi Guozhi Bi Jian-Min Zhou | 2020 | Molecular Plant2020，13，5： | 3 |
| 15 | Energy sources identify metabolic phenotypes n pancreatic cancer显示文摘 | Chen Liang Yi Qin Bo Zhang Shunrong Ji Si Shi Wenyan Xu Jiang Liu Jinfeng Xiang Dingkong Liang Qiangsheng Hu Liang Liu Chen Liu Guopei Luo Quanxing Ni Jin xu Xianjun Yu | 2016 | Acta Biochimica et Biophysica Sinica2016，48，11： | 3 |
| 16 | Effect of acidic oligosaccharide sugar chain on scopolamine-induced memory impairment in rats and its related mechanisms显示文摘 | Ying Fan Jinfeng Hu Jing Li Zhao Yang Xianliang Xin Jia Wang Jian Ding Meiyu Geng | 2006 | 中国生物学文摘2006，20，3： | 2 |
| 17 | A possible family of Ni-based high temperature superconductors显示文摘We suggest that a family of Ni-based compounds, which contain [Ni_2M_2O]~2à(M = chalcogen) layers with an antiperovskite structure constructed by mixed-anion Ni complexes, Ni M_4O_2, can be potential high temperature superconductors(high-Tc) upon doping or applying pressure. The layer structures have been formed in many other transitional metal compounds such as La_2B_2Se_2O_3(B = Mn, Fe, Co). For the Ni-based compounds, we predict that the parental compounds host collinear antiferromagnetic states similar to those in iron-based high temperature superconductors. The electronic physics near Fermi energy is controlled by two egd-orbitals with completely independent in-plane kinematics. We predict that the superconductivity in this family is characterized by strong competition between extended s-wave and d-wave pairing symmetries. | Congcong Le Jinfeng zeng Yuhao Gu Guang-Han Cao Jiangping Hu | 2018 | Science Bulletin2018，63，15： | 2 |
| 18 | Effects of berberine on glucose metabolism in vitro显示文摘 | Jun Yin Renming Hu Mingdao Chen Jinfeng Tang Fengying Li Ying Yang Jialun Chen | 2002 | Metabolism2002，，11： | 2 |
| 19 | Engineering cobalt sulfide/oxide heterostructure with atomically mixed interfaces for synergistic electrocatalytic water splitting显示文摘It remains challenging to develop economical and bifunctional electrocatalysts toward oxygen/hydrogen evolution reactions(OER/HER).Herein,we construct Co_(9)S_(8) nanoflakes decorated Co_(3)O_(4) nanoarrays with enriched heterogeneous interface zones on Ni foam(Co_(9)S_(8)@CO_(3)O_(4)/NF)via a novel step-wise approach.The Co_(9)S_(8)@Co_(3)O_(4)/NF hybrid manifests excellent performance with low overpotentials of 130 mV for HER(10 mA·cm^(-2))and 331 mV for OER(100 mA·cm^(-2)),delivering a small voltage of 1.52 V for water splitting at 10 mA·cm^(-2) as well as outstanding catalytic durability,which surpasses precious metals and previously reported earth-abundant nanocatalysts.Further experimental and theoretical investigations demonstrate that the excellent performance is attributed to the followings:(i)Highly conductive Ni facilitates the efficient charge transfer;(ii)porous core-shell nanoarchitecture benefits the infiltration and transportation of gases/ions;(iii)heterogeneous interface zones synergistically lower the chemisorption energy of hydrogen/oxygen intermediates.This work will shed light on the controllable synthesis and engineering of heterostructure nanomaterials for clean energy storage and conversion technologies. | Xiaoyang Wang Yu He Xiaopeng Han Jun Zhao Lanlan Li Jinfeng Zhang Cheng Zhong Yida Deng Wenbin Hu | 2022 | Nano Research2022，15，2： | 2 |
| 20 | Fast response speed of mechanically exfoliated MoS2 modified by PbS in detecting NO2显示文摘MoS2,acting as a promising gas sensing material,has shown huge potential in monitoring of toxic and harmful gases at room temperature.However,MoS2-based gas sensors still suffer from poor gas sensing performance such as poor sensitivity,long response time.Constructing the hete ro structure is an effective approach to improve gas-sensing performance of MoS2.Herein,PbS@MoS2 composites synthesized by mechanical exfoliation combining with wet-chemical precipitation are used to investigate its performance in detecting NO2 at room temperature.The response value of PbS@MoS2 gas sensor against NO2 is significantly improved compared with the pure MoS2 gas sensor.At the same time,the modification with PbS also accelerates the response speed of MoS2,and the response time is almost reduced by two orders of magnitude,from hundreds of seconds to less than ten seconds.The enhanced response value and fast response time are mainly benefited from the modulation effect of NO2 to PbS@MoS2 heterostructure and the mechanically exfoliated MoS2 surface with few defects.This work can be expected to provide useful guidance for designing composite materials with excellent gas sensing properties. | Junjiang Tan Jinyong Hu Jianxu Ren Jinfeng Peng Can Liu Yiqiao Song Yong Zhang | 2020 | Chinese Chemical Letters2020，31，8： | 2 |
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