|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Lignin derived multi-doped(N, S, Cl) carbon materials as excellent electrocatalyst for oxygen reduction reaction in proton exchange membrane fuel cells显示文摘Nowadays,hierarchically macro-/meso-/microporous 3D carbon materials have been paid more attention due to their imaginative application potential in specific electrochemistry.Here,we report a dualtemplate strategy using eutectic NaCl/ZnCl2 melt as airtight and swelling agent to obtain 3D mesoporous skeleton structured carbon from renewable lignin.The prepared lignin-derived biocarbon material(LN-3-1)has a high specific surface area(1289 m^2 g^-1),a large pore volume(2.80 cm^3 g^-1),and a well-connected and stable structure.LN-3-1 exhibits extremely high activity and stability in acidic medium for oxygen reduction reaction(ORR),superior to Pt/C catalyst and most non noble-metal catalysts reported in recent literatures.The prepared carbon material was used as a cathode catalyst to assemble a H2-O2 single fuel cell,and its excellent catalytic performance has been confirmed with the maximum power density of 779 mW cm^-2,which is one of the highest power densities among non-metallic catalysts so far.Density functional theory(DFT)calculations indicate that the synergy of chlorine and nitrogen reconciles the intermediate adsorption energies,leading to an appropriate theoretical ORR onset potential.We develop a cost-effective and highly efficient method to prepare biocarbon catalyst for ORR in proton-exchange membrane fuel cells. | Yixing Shen Yuhang Li Guangxing Yang Qiao Zhang Hong Liang Feng Peng | 2020 | Journal of Energy Chemistry2020，29，5： | 5 |
| 2 | Taxonomic and functional variations in the microbial community during the upgrade process of a full-scale landfill leachate treatment plant-from conventional to partial nitrification-denitrification显示文摘Because of the low access to biodegradable organic substances used for denitrification,the partial nitrification-denitrification process has been considered as a low-cost,sustainable alternative for landfill leachate treatment.In this study,the process upgrade from conventional to partial nitrificationdenitrification was comprehensively investigated in a full-scale landfill leachate treatment plant(LLTP).The partial nitrification-denitrification system was successfully achieved through the optimizing dissolved oxygen and the external carbon source,with effluent nitrogen concentrations lower than 150 mg/L.Moreover,the upgrading process facilitated the enrichment of Nitrosomonas(abundance increased from 0.4%to 3.3%),which was also evidenced by increased abundance of amoA/B/C genes carried by Nitrosomonas.Although Nitrospira(accounting for 0.1%-0.6%)was found to stably exist in the reactor tank,considerable nitrite accumulation occurred in the reactor(reaching 98.8 mg/L),indicating high-efficiency of the partial nitrification process.Moreover,the abundance of Thauera,the dominant denitrifying bacteria responsible for nitrite reduction,gradually increased from 0.60%to 5.52%during the upgrade process.This process caused great changes in the microbial community,inducing continuous succession of heterotrophic bacteria accompanied by enhanced metabolic potentials toward organic substances.The results obtained in this study advanced our understanding of the operation of a partial nitrification-denitrification system and provided a technical case for the upgrade of currently existing full-scale LLTPs. | Binbin Sheng Depeng Wang Xianrong Liu Guangxing Yang Wu Zeng Yiqing Yang Fangang Meng | 2020 | Frontiers of Environmental Science & Engineering2020，14，6： | 3 |
| 3 | Syngas production by dry reforming of the mixture of glycerol and ethanol with CaCO3显示文摘The reduction of CO2 emission is crucial for the mitigation of climate change.A considerable amount of industrial CO2 can be absorbed in the form of carbonates through high-temperature sorption processes.In this regard,the efficient conversion of carbonates to value-added products will provide an economically viable method for the sustainable usage of carbon compounds.Herein,we report a promising solution involving the use of a glycerol and ethanol mixture as a hydrogen donor in the dry reforming process with CaCO3 to produce syngas.A series of metal active components,including Ni,Fe,Co,Cu,Pt,Pd,Ru,and Rh,was used to promote this reaction.Ni showed comparable performance with that of Pd,but outperformed Co,Fe,Cu,Rh,Ru,and Pt.Approximately 100%conversion of glycerol and ethanol,~92%selectivity of synthesis gas(H2 and CO),and a H2/CO ratio of^1.2 were achieved over CaCO3 containing10 wt%Ni(10Ni-CaCO3).Meanwhile,the CO2 concentration was less than 5 vol%,indicating that most of the CO2 captured by the carbonate can be transformed into chemicals;however,they cannot simply be emitted.The CO2 released from the decomposition of CaCO3 not only adjusted the ratio of H2 to CO but also eliminated cokes to guarantee the CO2 absorption-conversion cyclic stability in the absence of steam and at high temperatures. | Chengxiong Dang Shijie Wu Guangxing Yang Yonghai Cao Hongjuan Wang Feng Peng Hao Yu | 2020 | Journal of Energy Chemistry2020，29，4： | 1 |
| 4 | Hydrogen production via autothermal reforming of ethanol over noble metal catalysts supported on oxides显示文摘Hydrogen was produced over noble metal (Ir, Ru, Rh, Pd) catalysts supported on various oxides, including γ-Al2O3, CeO2, ZrO2 and La2O3, via the autothermal reforming reaction of ethanol (ATRE) and oxidative reforming reaction of ethanol (OSRE). The conversion of ethanol and selectivites for hydrogen and byproducts such as methane, ethylene and acetaldehyde were studied. It was found that lanthana alone possessed considerable activity for the ATRE reaction, which could be used as a functional support for ATRE catalysts. It was demonstrated that Ir/La2O3 prevented the formation of methane, and Rh/La2O3 encumbered the production of ethylene and acetaldehyde. ATRE reaction was carried out over La2O3-supported catalysts (Ir/La2O3) with good stability on stream, high conversion, and excellent hydrogen selectivity approaching thermodynamic limit under autothermal condition. Typically, 3.4 H2 molecules can be extracted from a pair of ethanol and water molecules over Ir(5wt%)/La2O3. The results presented in this paper indicate that Ir/La2O3 can be used as a promising catalyst for hydrogen production via ATRE reaction from renewable ethanol. | Hongqing Chen Hao Yu Yong Tang Minqiang Pan Guangxing Yang Feng Peng Hongjuan Wang Jian Yang | 2009 | Journal of Natural Gas Chemistry2009，18，2： | 1 |
| 5 | Noble-metal-based high-entropy-alloy nanoparticles for electrocatalysis显示文摘Since the two seminal papers were published independently in 2004, high-entropy-alloys(HEAs) have been applied to structural and functional materials due to the enhanced mechanical properties, thermal stability, and electrical conductivity. In recent years, HEA nanoparticles(HEA-NPs) were paid much attention to in the field of catalysis for the promoted catalytic activity. Furthermore, the various ratios among the metal components and tunable bulk and surface structures enable HEAs have big room to enhance the catalytic performance. Especially, noble-metal-based HEAs displayed significantly improved performance in electrocatalysis, where the ‘core effects’ were employed to explain the superior catalytic activity. However, it is insufficient to understand the essential mechanism or further guide the design of electrocatalysts. Structure–property relationship should be disclosed for the catalysis on HEA-NPs to accelerate the process of seeking high effective and efficient electrocatalysts. Therefore, we summarized the recent advances of noble-metal-based HEA-NPs applied to electrocatalysis, such as hydrogen evolution reaction, oxygen evolution reaction, oxygen reduction reaction, methanol oxidation reaction, ethanol oxidation reaction, formic acid oxidation reaction, hydrogen oxidation reaction, carbon dioxide reduction reaction and nitrogen reduction reaction. For each electrocatalytic reaction, the reaction mechanism and catalyst structure were presented, and then the structure–property relationship was elaborated. The review begins with the development, concept, four ‘core effect’ and synthesis methods of HEAs. Next,the electrocatalytic reactions on noble-metal-based HEA-NPs are summarized and discussed independently. Lastly, the main views and difficulties pertaining to structure–property relationship for HEAs are discussed. | Xianfeng Huang Guangxing Yang Shuang Li Hongjuan Wang Yonghai Cao Feng Peng Hao Yu | 2022 | Journal of Energy Chemistry2022，31，5： | 1 |
| 6 | Transgenic maize plants expressing a fungal phytase gene显示文摘 | Rumei Chen Guangxing Xue Ping Chen Bin Yao Wenzhu Yang Qianli Ma Yunliu Fan Zuoyu Zhao Mitchell C. Tarczynski Jinrui Shi | 2008 | Transgenic Research2008，，4： | 1 |
| 7 | Transgenic maize plants expressing a fungal phytase gene显示文摘 | Rumei Chen Guangxing Xue Ping Chen Bin Yao Wenzhu Yang Qianli Ma Yunliu Fan Zuoyu Zhao Mitchell C. Tarczynski Jinrui Shi | 2008 | Transgenic Research2008，，4： | 1 |
| 8 | Bi-functional particles for integrated thermo-chemical processes:Catalysis and beyond显示文摘Particulate materials possessing dual functionalities have received tremendous investigations in many fields,owing to their superiority over mono-functional counterparts and their potential for process integration and intensification.This review focuses on bi-functional catalytic particles which also serve as sorbents/adsorbents or heat suppliers in the scheme of various thermo-chemical processes,enabling inherent separation or energy conservation within single-step operation.Bi-functional particles applied for integration of reaction and separation including sorption-enhanced hydrogen production and integrated capture and catalytic conversion processes are reviewed in detail,providing insights into material design and key performance indicators.On the other hand,bi-functional particles applied for integration of reaction and non-thermal radiation heating,including electrothermal and photothermal assisted heterogeneously catalyzed reactions,are also reviewed,with emphasis on the material property and energy efficiency improvement.These bi-functional particles show broad adaptability and feasibility in various reactions operated in integrated and intensified schemes,affording huge potentials for further improving productivity and efficiency in thermo-chemical processes. | Hanke Li Chengxiong Dang Guangxing Yang Yonghai Cao Hongjuan Wang Feng Peng Hao Yu | 2021 | Particuology2021，19，3： | 1 |
| 9 | In situ diet of the copepod Calanus sinicus in coastal waters of the South Yellow Sea and the Bohai Sea显示文摘Copepods are a key trophic link between primary producers and predatory animals at higher trophic levels in the marine ecosystem. Knowledge of the in situ composition of the copepod diet is critical for the accurate evaluation of trophic relationships and energy transfer in marine food webs. In this study, we applied a PCR-based cloning technique developed previously to investigate the in situ diet of Calanus sinicus, an ecologically important largesized calanoid copepod that dominates in the shelf waters around China, Japan and Korea. Analyses of the 18 S r DNA sequences obtained from the copepod diet revealed the diverse food composition of C. sinicus from two stations(Y19 in the South Yellow Sea and B49 in the Bohai Sea). A total of 43 operational taxonomic units(OTUs)were detected, which belonged to 13 diverse lineages: Bacillariophyta, Dinoflagellata, Dictyochophyceae,Chrysophyta, Katablepharidophyta, Pelagophyceae, Apusozoa, Hydrozoa, Ctenophora, Echinodermata, Tunicata,Chaetognatha and marine fungi. The results indicate that during an algae bloom, C. sinicus can graze on the bloom causative species. When the abundance of phytoplankton in ambient water is relatively low, C. sinicus can choose eggs, larvae, or organic particles/detritus of various metazoans, especially hydrozoans and ctenophores,as alternative food sources. Our result suggests that C. sinicus is an omnivorous species, and its prey choice may depend on the food availability in the ambient waters. | YI Xiaoyan HUANG Yousong ZHUANG Yunyun CHEN Hongju YANG Feifei WANG Weimin XU Donghui LIU Guangxing ZHANG Huan | 2017 | Acta Oceanologica Sinica2017，36，6： | 1 |
| 10 | Study on the sensitive element of ion beam etching depth 显示文摘 | Zhao Guangxing Yang Guoguang Chen Hongqiu | 2000 | Measurement2000，27，： | 1 |
| 11 | Wide-field aurora imager onboard Fengyun satellite:Data products and validation显示文摘New observations of auroras based on the wide-field aurora imager(WAI)onboard Fengyun-3D(FY-3D)satellite are exhibited in this paper.Validity of the WAI data is analyzed by comparing auroral boundaries derived from WAI observations with results obtained from data collected by the Special Sensor Ultraviolet Spectrographic Imager(SSUSI)aboard the Defense Meteorological Satellite Program(DMSP F18).Dynamic variations of the aurora with the solar wind,interplanetary magnetic field(IMF)parameters,and the SYM-H index are also investigated.The comparison of auroral boundaries indicates that the WAI data are morphologically valid and suitable to the study of auroral dynamics.Effective responses to solar wind parameters indicate that the WAI data can be useful to monitor and predict the Earth’s space weather.Since the configuration of aurora is a good indicator of the solar wind–magnetosphere–ionosphere(SW-M-I)coupling system,and can reflect the disturbance of the space environment,the WAI will provide important data to help us to study the physical processes in space. | GuangXing Ding JiaWei Li XiaoXin Zhang Fei He LingPing He KeFei Song Liang Sun Shuang Dai ShiJie Liu Bo Chen Chao Yu XiuQing Hu SongYan Gu ZhongDong Yang Peng Zhang | 2021 | Earth and Planetary Physics2021，5，1： | 1 |
| 12 | The influence of sequence of precursor films on CZTSe thin films prepared by ion-beam sputtering deposition显示文摘The CuZnSn(CZT) precursor thin films are grown by ion-beam sputtering Cu, Zn, Sn targets with different orders and then sputtering Se target to fabricate Cu_2ZnSnSe_4(CZTSe) absorber thin films on molybdenum substrates. They are annealed in the same vacuum chamber at 400 ℃. The characterization methods of CZTSe thin films include X-ray diffraction(XRD), energy dispersive spectroscopy(EDS), scanning electron microscopy(SEM), and X-ray photoelectron spectra(XPS) in order to study the crystallographic properties, composition, surface morphology, electrical properties and so on. The results display that the CZTSe thin films got the strongest diffraction peak intensity and were with good crystalline quality and its morphology appeared smooth and compact with a sequence of Cu/Zn/Sn/Se, which reveals that the expected states for CZTSe are Cu^(1+), Zn^(2+), Sn^(4+), Se^(2).With the good crystalline quality and close to ideal stoichiometric ratio the resistivity of the CZTSe film with the sequence of Cu/Zn/Sn/Se is lower, whose optical band gap is about 1.50 eV. | Jun Zhao Guangxing Liang Yang Zeng Ping Fan Juguang Hu Jingting Luo Dongping Zhang | 2017 | Journal of Semiconductors2017，38，2： | 0 |
| 13 | Platinum-based ternary catalysts for the electrooxidation of ethanol显示文摘Direct ethanol fuel cell(DEFC)as a promising device for converting chemical energy to electricity has been paid ever-increasing attention.However,the slow kinetics of ethanol electrooxidation at an anode hinders the application of DEFCs.Although Pt is the best catalyst among all the pure metal catalysts,it still has a relatively poor ability to break the Csingle bondC bond,is deactivated by the accumulated CO_(ad) intermediates,and undergoes unwanted desired structure change over long-term operation.In recent years,the addition of other metals to form binary,ternary,and quaternary catalysts have significantly improved electroactivity and stability.Ternary catalysts can have numerous element combinations and complicated architectures and,therefore,have been the subject of considerable research.In this review,most of the reported ternary catalysts will be summarized and categorized according to their structure while discussing the essence of the role of each component. | Guangxing Yang Qiao Zhang Hao Yu Feng Peng | 2021 | Particuology2021，19，5： | 0 |
| 14 | Production of high-purity hydrogen from paper recycling black liquor via sorption enhanced steam reforming显示文摘Environmentally friendly and energy saving treatment of black liquor(BL),a massively produced waste in Kraft papermaking process,still remains a big challenge.Here,by adopting a NieCaOeCa_(12)Al_(14)O_(33) bifunctional catalyst derived from hydrotalcite-like materials,we demonstrate the feasibility of producing high-purity H_(2)(~96%)with 0.9 mol H_(2) mol^(-1) C yield via the sorption enhanced steam reforming(SESR)of BL.The SESRBL performance in terms of H_(2) production maintained stable for 5 cycles,but declined from the 6th cycle.XRD,Raman spectroscopy,elemental analysis and energy dispersive techniques were employed to rationalize the deactivation of the catalyst.It was revealed that gradual sintering and agglomeration of Ni and CaO and associated coking played important roles in catalyst deactivation and performance degradation of SESRBL,while deposition of Na and K from the BL might also be responsible for the declined performance.On the other hand,it was demonstrated that the SESRBL process could effectively reduce the emission of sulfur species by storing it as CaSO_(3).Our results highlight a promising alternative for BL treatment and H_(2) production,thereby being beneficial for pollution control and environment governance in the context of mitigation of climate change. | Hanke Li Shijie Wu Chengxiong Dang Guangxing Yang Yonghai Cao Hongjuan Wang Feng Peng Hao Yu | 2021 | Green Energy & Environment2021，6，5： | 0 |
| 15 | DELIBERATlON TO THE DEFINITION OF TOOTH THICKNESS FOR INVOLUTE HELICAL GEAR IN INTERNATIONAL STANDARD ISO1122/1显示文摘DELIBERATlONTOTHEDEFINITIONOFTOOTHTHICKNESSFORINVOLUTEHELICALGEARININTERNATIONALSTANDARDISO1122/1DELIBERATIONTOTHEDEFINITIONO... | Yang Guoling Chen MinLi Xianming Hu Guangxing Feng Shenghua Li Baosong(Shenyang Institute of Gold Technology)( Shenyang Centre of Robot) | 1995 | Chinese Journal of Mechanical Engineering1995，8，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员