A5088200302- Electrocatalysts for Energy Conversion
- Fuel Cells and Related Materials
- Advanced battery technologies research
- Catalytic Processes in Materials Science
- High-pressure geophysics and materials
- Methane Hydrates and Related Phenomena
- Advancements in Solid Oxide Fuel Cells
- Membrane-based Ion Separation Techniques
- Electrochemical Analysis and Applications
- Crystal Structures and Properties
- X-ray Diffraction in Crystallography
- Geological and Geochemical Analysis
- Hydraulic Fracturing and Reservoir Analysis
- Advanced Photocatalysis Techniques
- Electric and Hybrid Vehicle Technologies
- Nuclear Physics and Applications
- Thermography and Photoacoustic Techniques
- Supercapacitor Materials and Fabrication
- Landslides and related hazards
- Thermal properties of materials
- Biodiesel Production and Applications
- Advanced Battery Technologies Research
- Hydrocarbon exploration and reservoir analysis
- Geological and Geophysical Studies
- Diamond and Carbon-based Materials Research
Chinese Academy of Sciences
1990-2025
University of Chinese Academy of Sciences
2012-2025
Xinjiang Institute of Ecology and Geography
2025
Guangzhou Institute of Energy Conversion
2018-2024
Shanghai Jiao Tong University
2015-2020
Queen Mary University of London
2015
Fujian Institute of Research on the Structure of Matter
1990-2014
Anhui University of Science and Technology
2014
Wuhan University
2008-2010
North University of China
2009
As a portable power source, air-cooled proton exchange membrane fuel cells (PEMFCs) have the advantages of high energy density, low weight, and zero-emission. However, direct supply ambient air by fan may cause local temperature electrode dehydration, resulting in unstable performance durability issues. In this study, flow field design PEMFCs is compared optimized aiming to improve mass heat transfer characteristics. For purpose, three-dimensional, multi-disciplinary, non-isothermal...
The current limitations of air-cooled proton exchange membrane fuel cells (AC-PEMFCs) in water and heat management remain a major obstacle to their commercialization. A 90 cm2 full-size AC-PEMFC multi-physical field-coupled numerical model was constructed; isothermal non-isothermal calculations were performed explore the effects univariate multivariate variables on cell performance, respectively. results indicate that lower temperature is beneficial increase humidity MEA, distribution...
Developing region-specific dietary strategies is crucial for mitigating methane (CH4) emissions from yaks. However, there a lack of tailored emission reduction yak production in the Qinghai-Tibet Plateau region. This study utilizes an vitro rumen fermentation technique (Based on ANKOMRF gas measurement system) to investigate effects different interventions CH4 regional The selected strategies—Sodium Nitrate solution, Medicago sativa L., and Helianthus tuberosus L.—were chosen their potential...
The anisotropic thermal expansion of LiB3O5 has been studied along the principal crystallographic directions over temperature range 17 to 790 degrees C by means high-temperature X-ray powder diffraction. This orthorhombic crystal exhibits strongly with coefficients 108.2*10-6 K-1 for (100), 33.6*10-6 (010) and -88.0*10-6 (001) at 50 C. tend zero when approaches crystal's peritectic reaction point.
In cognitive radio (CR), white space devices (WSDs) need to have the knowledge of spectrum occupancy in TV (TVWS) before dynamic access. There are two common schemes proposed achieve this: 1) geo-location database and 2) sensing. database, calculating digital terrestrial television (DTT) location probability maximum permitted power each channel an efficient way becomes important as is supposed give a quick response once request comes. Spectrum sensing scheme which can provide more reliable...
A proton exchange membrane fuel cell (PEMFC) stack has two endplate assemblies (EAs) to stabilize the multilayered structure and distribute preload evenly on each cell. Thermal inertia of heat loss through EA are crucial factors for developing novel thermal water management strategies PEMFC stacks. Herein, a 3D multidisciplinary transient model is established assess effects EAs cold start performance The underlying mechanism linked revealed analysis temperature distribution, current density...
The efficient catalysis of ethanol oxidation (EOR) is paramount importance for the progress energy conversion and storage technologies. We investigate improved catalytic performance commercial J-M Pt/C Pd/C catalysts by utilizing high potential scanning. By employing in situ Raman spectroscopy, we analyze reaction intermediates during electrochemical reactions. Our findings highlight that catalyst exhibits remarkable enhancements activity stability, which can be attributed to activation at...
Herein, a novel fuel cell flow field with 3 π /2 radian Dean channels and its impact on the performance of proton exchange membrane cells are presented. With multidisciplinary numerical model, characteristics, concentration distribution, current density contour in compared between straight channel cases. The unstable vortices formed shown to enhance mass transfer both reactants water. As result, although voltage under low is slightly lower than that channels, output high observably improved....
Abstract Understanding the cold start process of polymer electrolyte fuel cell (PEFC) is crucial to development an advanced PEFC good performance or design strategies. In this study, a three‐dimensional model has been adapted and further developed numerically investigate behavior under applied clamping pressure, which was not considered in previous modeling simulation work. The studied various assembly pressures terms polarization curves, ice formation, water content profile, current density...