|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Analysis of CD8+ Treg cells in patients with ovarian cancer: a possible mechanism for immune impairment显示文摘 | Shuping Zhang | 2015 | Cellular & Molecular Immunology2015，12，5： | 17 |
| 2 | Modeling the impacts of drying trend scenarios on land systems in northern China using an integrated SD and CA model显示文摘Climate-induced drought has exerted obvious impacts on land systems in northern China.Although recent reports by the Intergovernmental Panel on Climate Change(IPCC) have suggested a high possibility of climate-induced drought in northern China,the potential impacts of such drying trends on land systems are still unclear.Land use models are powerful tools for assessing the impacts of future climate change.In this study,we first developed a land use scenario dynamic model(iLUSD) by integrating system dynamics and cellular automata.Then,we designed three drying trend scenarios(reversed drying trend,gradual drying trend,and acceleration of drying trend) for the next 25 years based on the IPCC emission scenarios and considering regional climatic predictions in northern China.Finally,the impacts of drying trend scenarios on the land system were simulated and compared.An accuracy assessment with historic data covering 2000 to 2005 indicated that the developed model is competent and reliable for understanding complex changes in the land use system.The results showed that water resources varied from 441.64 to 330.71 billion m3 among different drying trend scenarios,suggesting that future drying trends will have a significant influence on water resource and socioeconomic development.Under the pressures of climate change,water scarcity,and socioeconomic development,the ecotone(i.e.,transition zone between cropping area and nomadic area) in northern China will become increasingly vulnerable and hotspots for land-use change.Urban land and grassland would have the most prominent response to the drying trends.Urban land will expand around major metropolitan areas and the conflict between urban and cultivated land will become more severe.The results also show that previous ecological control measures adopted by the government in these areas will play an important role in rehabilitating the environment.In order to achieve a sustainable development in northern China,issues need to be addressed such as how to arrange land use structure and patterns rationally,and how to adapt to the pressures of climate change and socioeconomic development together. | HUANG QingXu HE ChunYang LIU ZhiFeng SHI PeiJun | 2014 | Science China Earth Sciences2014，57，4： | 10 |
| 3 | Activation of Toll-like receptors signaling in non-small cell lung cancer cell line induced by tumor-associated macrophages显示文摘Background:Inflammation is often linked with the progress and poor outcome of lung cancer.The understanding of the relationship between tumor-associated macrophages(TAMs) and lung cancer cells involves in the underlying mechanism of inflammatory cytokine production.Toll-like receptors(TLRs) are engaged in promoting the production of pro-inflammatory cytokines and play an important role in tumor immunology.Methods:To investigate the mechanisms by which TAMs influence the production of pro-inflammatory cytokines in lung cancer cells,we established an in vitro coculture system using TAMs and human nonsmall cell lung cancer(NSCLC) cell line SPC-A1.Levels of interleukin(IL)-1β,IL-6 and IL-8 in SPC-A1 were evaluated by RT-PCR and cytometric bead array assay after being cocultured with TAMs.Expression changes of TLRs and TLRs signaling pathway proteins in SPC-A1 were further confirmed by RT-PCR and western blot.The level changes of IL-1β,IL-6 and IL-8 in SPC-A1 were also detected after the stimulation of TLRs agonists.Results:We found that the phenotype markers of TAMs were highly expressed after stimulating human monocyte cell line THP-1 by phorbol-12-myristate-13-acetate(PMA).Higher mRNA and supernate secretion levels of IL-1β,IL-6 and IL-8 were detected in SPC-A1 after being cocultured with TAMs.We also found that TLR1,TLR6 and TLR7 were up-regulated in SPC-A1 in the coculture system with TAMs.Meanwhile,TLRs signaling pathway proteins were also significantly activated.Moreover,pre-treatment with agonist ligands for TLR1,TLR6 and TLR7 could dramatically promote inductions of IL-1β,IL-6 and IL-8.Conclusions:These findings demonstrated that TAMs may enhance IL-1β,IL-6 and IL-8 expressions via TLRs signaling pathway.We conclude that TAMs contribute to maintain the inflammation microenvironment and ultimately promote the development and progression of lung cancer. | Xing Ke Meng Wu Jianfang Lou Shuping Zhang Peijun Huang Ruihong Sun Lei Huang Erfu Xie Fang Wang Bing Gu | 2015 | Chinese Journal of Cancer Research2015，27，2： | 6 |
| 4 | Hydrogen production from coke oven gas over LiNi/γ-Al_2O_3 catalyst modified by rare earth metal oxide in a membrane reactor显示文摘The performance of LiNi/γ-Al2O3 catalysts modified by rare earth metal oxide(La2O3 or CeO2 ) packed on BCFNO membrane reactor was discussed for the partial oxidation of methane(POM) in coke oven gas(COG) at 875 C. The NiO/γ-Al2O3 catalysts with different amounts of La2O3 and CeO2 were prepared with the same preparation method and under the same condition in order to compare the reaction performance(oxygen permeation,CH 4 conversion,H 2 and CO selectivity) on the membrane reactor. The results show that the oxygen permeation flux increased significantly with LiNiREO x /γ-Al2O3(RE = La or Ce) catalysts by adding the element of rare earth especially the Ce during the POM in COG. Such as,the Li15wt%CeO2 9wt%NiO/γ-Al2O3 catalyst with an oxygen permeation flux of 24.71 ml cm 2 min 1 and a high CH 4 conversion was obtained in 875 C. The resulted high oxygen permeation flux may be due to the added Ce that inhibited the strong interaction between Ni and Al2O3 to form the NiAl2O4 phase. In addition,the introduction of Ce leads up to an important property of storing and releasing oxygen. | Zhibin Yang Yunyan Zhang Weizhong Ding Yuwen Zhang Peijun Shen Yuding Zhou Yong Liu Shaoqing Huang Xionggang Lu | 2009 | Journal of Natural Gas Chemistry2009，18，4： | 6 |
| 5 | Discovery of the ancient Ordovician oil-bearing karst cave in Liuhuanggou,North Tarim Basin,and its significance显示文摘A typical ancient karst cave is found in the Yijianfang Formation of Ordovician at Liuhuanggou,North Tarim Basin.With an entrance of 4.8 m wide and 20 m high,the Liuhuanggou ancient karst cave extends to NW 315° and has been filled by sediments,which can be classified into three types according to their nature and origin:clastic sediments(gravels),chemical sediments(palaeotravertine),and mixed sediments.Among them,the Paleotravertine and gravels are most common.The palaeotravertine is laminated type and yellowish brown or black in color due to oil inside.When saturated with oil,the palaeotravertine is black.Under microscope,oil mainly accumulates in the cracks between calcite crystals.The filling period of the Liuhuanggou karst cave can be divided into three stages:mixed filling,chemical filling,and clastic(palaeotravertine breccia) filling.Numerous fractures are distributed on one side of the karst cave.The fractures can be as wide as 40 cm and over 40 m long.Fractures of different periods and sizes constitute a fracture network and are all filled with calcite veins.Oil can be found inside the fractures.In the chemical fillings,sulfur is also found,which can indicate the magma influence on karst caves.The existence of sulfur also confirms that the Liuhunggou karst cave was formed in ancient times rather than recently or nowadays.Different from normal sedimentary limestone,the ancient Liuhuanggou karst cave has a distinct isotope fractionation and the depletion of heavy carbon and oxygen isotope.Controlled by the northwest oriented vertical strike-slip shear fault,the karst cave is actually a dissolved vertical fault belt. | ZHONG JianHua MAO Cui LI Yong LI Yang YUAN XiangChun NIU YongBin CHEN Xin HuANG ZhiJuan SHAO ZhuFu WANG PeiJun LI Jia ZHANG DanFeng | 2012 | Science China Earth Sciences2012，55，9： | 4 |
| 6 | Clinical laboratory features of Meigs’syndrome:a retrospective study from 2009 to 2018显示文摘Meigs’syndrome(MS),a rare complication of benign ovarian tumors,is easily misdiagnosed as ovarian cancer(OC).We retrospectively reviewed the clinical laboratory data of patients diagnosed with MS from 2009 to 2018.Serum carbohydrate antigen 125 and HE4 levels were higher in the MS group than in the ovarian thecoma-fibroma(OTF)and healthy control groups(all P<0.05).However,the serum HE4 levels were lower in the MS group than in the OC group(P<0.001).A routine blood test showed that the absolute counts and percentages of lymphocytes were significantly lower in the MS group than in the OTF and control groups(all P<0.05).However,these variables were higher in the MS group than in the OC group(both P<0.05).The neutrophil-to-lymphocyte ratio(NLR)was also significantly lower,whereas the lymphocyte-to-monocyte ratio was higher in the MS group than in the OC group(both P<0.05).The NLR,platelet-to-lymphocyte ratio,and systemic immune index were significantly higher in the MS group than in the OTF and control groups(all P<0.05).The hypoxia-inducible factor-1 mRNA levels were also significantly higher,whereas the glucose transporter 1,lactate dehydrogenase,and enolase 1 mRNA levels were lower in peripheral CD4+T cells obtained preoperatively in a patient with MS than those in patients with OTF,patients with OC,and controls(all P<0.05).The expression of these four glucose metabolism genes was preferentially restored to normal levels after the tumor resection of MS(P<0.001).These clinical laboratory features can be useful in improving the preoperative diagnostic accuracy of MS. | Wenwen Shang Lei Wu Rui Xu Xian Chen Shasha Yao Peijun Huang Fang Wang | 2021 | Frontiers of Medicine2021，15，1： | 4 |
| 7 | Disaster Risk Science:A Geographical Perspective and a Research Framework显示文摘In this article,we recall the United Nations’30-year journey in disaster risk reduction strategy and framework,review the latest progress and key scientific and technological questions related to the United Nations disaster risk reduction initiatives,and summarize the framework and contents of disaster risk science research.The object of disaster risk science research is the'disaster system'consisting of hazard,the geographical environment,and exposed units,with features of regionality,interconnectedness,coupling,and complexity.Environmental stability,hazard threat,and socioeconomic vulnerability together determine the way that disasters are formed,establish the spatial extent of disaster impact,and generate the scale of losses.In the formation of a disaster,a conducive environment is the prerequisite,a hazard is the necessary condition,and socioeconomic exposure is the sufficient condition.The geographical environment affects local hazard intensity and therefore can change the pattern of loss distribution.Regional multi-hazard,disaster chain,and disaster compound could induce complex impacts,amplifying or attenuating hazard intensity and changing the scope of affected areas.In the light of research progress,particularly in the context of China,we propose a threelayer disaster risk science disciplinary structure,which contains three pillars(disaster science,disaster technology,and disaster governance),nine core areas,and 27 research fields.Based on these elements,we discuss the frontiers in disaster risk science research. | Peijun Shi Tao Ye Ying Wang Tao Zhou Wei Xu Juan Du Jing'ai Wang Ning Li Chongfu Huang Lianyou Liu Bo Chen Yun Su Weihua Fang Ming Wang Xiaobin Hu Jidong Wu Chunyang He Qiang Zhang Qian Ye Carlo Jaeger Norio Okada | 2020 | International Journal of Disaster Risk Science2020，11，4： | 4 |
| 8 | 普通玉米、糯玉米和蒸汽压片玉米对生长猪能量和营养物质消化率的影响显示文摘研究的目的是通过饲喂生长猪普通玉米、糯玉米和蒸汽压片玉米来测定其消化能、代谢能和营养物质的表观消化率。 | 朱秋凤 张永静 温春雨 徐作鹏 Dongli Ma Juntao Li Chengfei Huang Fengjuan Yang Yi Wu Ling Liu Wei Jiang Zhicheng Jia Peijun Zhang Xuezhen Liu Shuai Zhang | 2021 | 猪业科学2021，38，3： | 3 |
| 9 | Nested hollow architectures of nitrogen-doped carbon-decorated Fe,Co,Ni-based phosphides for boosting water and urea electrolysis显示文摘Tailoring the nanostructure/morphology and chemical composition is important to regulate the electronic configuration of electrocatalysts and thus enhance their performance for water and urea electrolysis.Herein,the nitrogen-doped carbon-decorated tricomponent metal phosphides of FeP4 nanotube@Ni-Co-P nanocage(NC-FNCP)with unique nested hollow architectures are fabricated by a self-sacrifice template strategy.Benefiting from the multi-component synergy,the modification of nitrogen-doped carbon,and the modulation of nested porous hollow morphology,NC-FNCP facilitates rapid electron/mass transport in water and urea electrolysis.NC-FNCP-based anode shows low potentials of 248 mV and 1.37 V(vs.reversible hydrogen electrode)to attain 10 mA/cm^(2) for oxygen evolution reaction(OER)and urea oxidation reaction(UOR),respectively.In addition,the overall urea electrolysis drives 10 mA/cm^(2) at a comparatively low voltage of 1.52 V(vs.RHE)that is 110 mV lower than that of overall water electrolysis,as well as exhibits excellent stability over 20 h.This work strategizes a multi-shell-structured electrocatalyst with multi-compositions and explores its applications in a sustainable combination of hydrogen production and sewage remediation. | Jie Zhang Shoushuang Huang Ping Ning Peijun Xin Zhiwen Chen Qing Wang Kajsa Uvdal Zhangjun Hu | 2022 | Nano Research2022，15，3： | 2 |
| 10 | Simultaneous estimation of surface soil moisture and soil properties with a dual ensemble Kalman smoother显示文摘In this paper, a new state-parameter estimation approach is presented based on the dual ensemble Kalman smoother(DEn KS) and simple biosphere model(Si B2) to sequentially estimate both the soil properties and soil moisture profile by assimilating surface soil moisture observations. The Arou observation station, located in the upper reaches of the Heihe River in northwestern China, was selected to test the proposed method. Three numeric experiments were designed and performed to analyze the influence of uncertainties in model parameters, atmospheric forcing, and the model's physical mechanics on soil moisture estimates. Several assimilation schemes based on the ensemble Kalman filter(En KF), ensemble Kalman smoother(En KS), and dual En KF(DEn KF) were also compared in this study. The results demonstrate that soil moisture and soil properties can be simultaneously estimated by state-parameter estimation methods, which can provide more accurate estimation of soil moisture than traditional filter methods such as En KF and En KS. The estimation accuracy of the model parameters decreased with increasing error sources. DEn KS outperformed DEn KF in estimating soil moisture in most cases, especially where few observations were available. This study demonstrates that the DEn KS approach is a useful and practical way to improve soil moisture estimation. | CHU Nan HUANG ChunLin LI Xin DU PeiJun | 2015 | Science China Earth Sciences2015，58，12： | 1 |
| 11 | Class Ⅰ integron with a novel cassette array in an ESBL-producing multidrug-resistant Klebsiella pneumoniae isolate显示文摘Objective: To analyze the molecular mechanism of integron mediated multi-resistance in an ESBL-producing K.pneumoniae NJ 12 isolate. Methods: Susceptibility test was carried out by Kirby-Bauer method. Class Ⅰ, Ⅱ and Ⅲ integrons were detected by integrase gene PCR with primers that annealed to conserved regions of integron-encoded integrase genes intI1, intI2 and intI3. The variable region of integron was amplified by integron PCR with primers that targeted the conserved flanking regions, and the PCR product was sequenced. Six aminoglycoside modifying-enzyme genes, including ant(2″)-Ⅰ, ant(3″)-Ⅰ, aac(3)-Ⅰ, aac(3)-Ⅱ, aac(6′)-Ⅰ, and aac(6′)-Ⅱ, were detected. Results: K.pneumoniae NJ 12 was resistant to nine antibiotics, including piperacillin, ampicillin, cefuroxime, ceftazidime, cefotaxime, aztreonam, streptomycin, gentamicin and amikacin. This isolate was shown that there was positive with class Ⅰ integron, ant(2″)-Ⅰ, ant(3″)-Ⅰ, aac(3)-Ⅱ and aac(6′)-Ⅰ modifying-enzyme genes. Neither class Ⅱ nor Ⅲ integron was detected; DNA sequencing of the fragment amplified by integron PCR revealed a novel cassette array aadB-cat-bla_ oxa-10/ aadA1. Conclusion: Class Ⅰ integron with a novel cassette array in an ESBL-producing multidrug-resistant K.pneumoniae NJ 12 isolate was reported from Nanjing area of China, with the GenBank accession number DQ141319. | Bing Gu Mingqing Tong Wangsheng Zhao Shiyang Pan Yuanhua Wei Peijun Huang | 2006 | Journal of Nanjing Medical University2006，20，1： | 1 |
| 12 | A PRIMAL-DUAL FIXED POINT ALGORITHM FOR MULTI-BLOCK CONVEX MINIMIZATION显示文摘我们为解决三凸的可分离的功能的和的最小化建议了一个最初双的固定的点算法(PDFP ) ,它与 Lipschitz 连续坡度,线性合成 nonsmooth 功能,和 nonsmooth 功能包含光滑的功能。与类似的工作相比,在 PDFP 的参数更容易选择并且在一个相对更大的范围被允许。我们将扩大 PDFP 解决二种可分离的多块最小化问题,在信号处理和成像科学产生。这个工作显示出把 PDFP 算法用于多块问题的灵活性并且说明实际、充分切开的计划怎么能被导出,特别为大规模问题的平行实现。连接和比较到轮流出现的方向方法(ADMM ) 更多样地也是现在。我们表明不同算法怎么能被通过稀少的经典例子以不同方法切开这些问题获得有限制的调整最不方形的模型。特别地,在多块 ADMM 的上下文为线性地抑制的问题,它具有伟人的一个班感兴趣,能被 PDFP 也与集中的一条保证解决。最后,一些实验被提供说明 PDFP 算法导出的几个计划的表演。 | Peijun Chen Jianguo Huang Xiaoqun Zhang | 2016 | Journal of Computational Mathematics2016，34，6： | 1 |
| 13 | A chattering free consensus controller for multiple Lur'e systems with a non-autonomous leader and directed switching topology显示文摘Achieving asymptotical cooperative goal for multi-agent systems(MASs)with non-autonomous leaders(i.e.,leaders with nonzero inputs)is a critical but challenging issue.Traditional approach is to use discontinuous controllers which may cause chattering phenomenon in practical applications.How to achieve the asymptotical goal via a chattering free cooperative controller remains to be open so far.In this paper,an adaptive continuous controller is designed to achieve zero error consensus tracking in multiple Lur’e systems with a non-autonomous leader under directed switching topology.Firstly,an unknown input observer(UIO)based on relative outputs is given to estimate the relative full states.Then an adaptive continuous controller is designed by introducing a decay function which remains positive into the term that plays the role of eliminating the impacts of leader’s nonzero inputs.Secondly,by using multiple Lyapunov functions(MLFs)technique,it is proven that zero error consensus tracking can be achieved if the average dwell time(ADT)is greater than a positive threshold.Finally,theoretical result is verified by performing simulations on Chua’s circuits.Compared with existing work,the proposed controller can not only achieve asymptotical consensus,but also is chattering free. | WANG PeiJun YU WenWu WEN GuangHui YU XingHuo HUANG TingWen | 2023 | Science China(Technological Sciences)2023，66，4： | 1 |
| 14 | Reaction mechanism on reduction surface of mixed conductor membrane for H 2 production by coal-gas显示文摘 | PeiJun Shen WeiZhong Ding YuDing Zhou ShaoQing Huang | 2010 | Applied Surface Science2010，，16： | 1 |
| 15 | Non-linear finite element analysis of axially restrained steel beams at elevated temperatures in a fire显示文摘 | Li Guoqiang Huang Peijun Jiang Shouchao | 2007 | Journal of Constructional Steel Research2007，63，9： | 1 |
| 16 | Morphological and biomechanical remodeling of the hepatic portal vein in a swine model of portal hypertension显示文摘 | HE Xiju HUANG Tiezhu WANG Peijun | 2012 | Annals of Vascular Surgery2012，26，2： | 1 |
| 17 | A Global Analysis of the Relationship Between Urbanization and Fatalities in Earthquake-Prone Areas显示文摘Urbanization can be a challenge and an opportunity for earthquake risk mitigation.However,little is known about the changes in exposure(for example,population and urban land)to earthquakes in the context of global urbanization,and their impacts on fatalities in earthquake-prone areas.We present a global analysis of the changes in population size and urban land area in earthquake-prone areas from 1990 to 2015,and their impacts on earthquake-related fatalities.We found that more than two thirds of population growth(or 70%of total population in 2015)and nearly three quarters of earthquake-related deaths(or 307,918 deaths)in global earthquake-prone areas occurred in developing countries with an urbanization ratio(percentage of urban population to total population)between 20 and 60%.Holding other factors constant,population size was significantly and positively associated with earthquake fatalities,while the area of urban land was negatively related.The results suggest that fatalities increase for areas where the urbanization ratio is low,but after a ratio between 40 and 50%occurs,earthquake fatalities decline.This finding suggests that the resistance of building and infrastructure is greater in countries with higher urbanization ratios and highlights the need for further investigation.Our quantitative analysis is extended into the future using Shared Socioeconomic Pathways to reveal that by 2050,more than 50%of the population increase in global earthquake-prone areas will take place in a few developing countries(Pakistan,India,Afghanistan,and Bangladesh)that are particularly vulnerable to earthquakes.To reduce earthquake-induced fatalities,enhanced resilience of buildings and urban infrastructure generally in these few countries should be a priority. | Chunyang He Qingxu Huang Xuemei Bai Derek TRobinson Peijun Shi Yinyin Dou Bo Zhao Jubo Yan Qiang Zhang Fangjin Xu James Daniell | 2021 | International Journal of Disaster Risk Science2021，12，6： | 1 |
| 18 | Projected land use changes in the Qinghai-Tibet Plateau at the carbon peak and carbon neutrality targets显示文摘Based on historical land use for eight periods from 1980 to 2020 and the projected land use under seven Shared Socioeconomic Pathways(SSPs:SSP1-1.9,SSP1-2.6,SSP2-4.5,SSP3-7.0,SSP4-3.4,SSP4-6.0,and SSP5-8.5)from 2021 to 2100,we conducted a study on past and future land use changes in the Qinghai-Tibet Plateau(QTP).This work aims to reveal the land use changes during the carbon peak(2021-2040)and carbon neutrality(2051-2070)periods and at the end of the 21st century(2081-2100).The results show that:(1)in the historical period(1980-2020),the land use types in the QTP were grassland(1475×10^(3)km^(2),58.2%),barren land(685×10^(3)km^(2),27.0%),forest land(243×10^(3)km^(2),9.6%),water(114×10^(3)km^(2),4.5%),cropland(18.6×10^(3)km^(2),0.7%)and urban land(0.3×10^(3)km^(2),0.01%).(2)Relative to the baseline period(1995-2014),the area of grassland is projected to decrease by 0.7%(SSP4-6.0)-5.4%(SSP2-4.5)(0.5-3.9%of the total area of the QTP),2.8%(SSP4-6.0)-12.5%(SSP3-7.0)(2.1-9.4%of the total area of the QTP)and 6.1%(SSP4-6.0)-21.7%(SSP4-3.4)(4.6-16.4%of the total area of the QTP)in the future three periods.In contrast,the forest land area is projected to increase,by approximately 2.5%(SSP4-6.0)to 30.1%(SSP3-7.0)(0.3-4.3%of the total area of the QTP),9.2%(SSP4-6.0)to 56.5%(SSP2-4.5)(1.3-8.0%of the total area of the QTP),and 21.2%(SSP4-6.0)to 72.8%(SSP2-4.5)(3.0-10.2%of the total area of the QTP)in the future three periods,respectively.(3)Approximately 0.4(SSP4-6.0)to 6.9%(SSP5-8.5),0.9(SSP4-6.0)to 2.7%(SSP4-3.4),and 0.04(SSP5-8.5)to 3.5%(SSP1-1.9)of land is expected to convert from grassland to forest land in the future three periods,respectively.The shift from grassland to forest land area is likely to enhance the carbon sink potential of the QTP in the future period. | Runhong XU Peijun SHI Miaoni GAO Yanjun WANG Guojie WANG Buda SU Jinlong HUANG Qigen LIN Tong JIANG | 2023 | Science China Earth Sciences2023，66，6： | 0 |
| 19 | Data fusion in data scarce areas using a back-propagation artificial neural network model: a case study of the South China Sea显示文摘 | Zheng WANG Zhihua MAO Junshi XIA Peijun DU Liangliang SHI Haiqing HUANG Tianyu WANG Fang GONG Qiankun ZHU | 2018 | Frontiers of Earth Science2018，12，2： | 0 |
| 20 | Phosphorus-doped Fe_(7)S_(8)@C nanowires for efficient electrochemical hydrogen and oxygen evolutions:Controlled synthesis and electronic modulation on active sites显示文摘Developing low-cost,efficient,and stable non-precious-metal electrocatalysts with controlled crystal structure,morphology and compositions are highly desirable for hydrogen and oxygen evolution reactions.Herein,a series of phosphorus-doped Fe_(7)S_(8)nanowires integrated within carbon(P-Fe_(7)S_(8)@C)are rationally synthesized via a one-step phosphorization of one-dimensional(1D)Fe-based organicinorganic nanowires.The as-obtained P-Fe_(7)S_(8)@C catalysts with modified electronic configurations present typical porous structure,providing plentiful active sites for rapid reaction kinetics.Density functional calculations demonstrate that the doping Fe_(7)S_(8)with P can effectively enhance the electron density of Fe_(7)S_(8)around the Fermi level and weaken the Fe-H bonding,leading to the decrease of adsorption free energy barrier on active sites.As a result,the optimal catalyst of P-Fe_(7)S_(8)-600@C exhibits a relatively low overpotential of 136 mV for hydrogen evolution reaction(HER)to reach the current density of 10 mA/cm^(2),and a significantly low overpotential of 210 mV for oxygen evolution reaction(OER)at 20 mA/cm^(2)in alkaline media.The work presented here may pave the way to design and synthesis of other prominent Fe-based catalysts for water splitting via electronic regulation. | Thanh-Tung Le Xiao Liu Peijun Xin Qing Wang Chunyan Gao Ye Wu Yongjiang Zhangjun Hu Shoushuang Huang Zhiwen Chen | 2021 | Journal of Materials Science & Technology2021，，15： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员