A5103088273- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Fuel Cells and Related Materials
- Hybrid Renewable Energy Systems
- Advancements in Solid Oxide Fuel Cells
- Energy Load and Power Forecasting
- Geoscience and Mining Technology
- Geomechanics and Mining Engineering
- Catalytic Processes in Materials Science
- Engineering Diagnostics and Reliability
- Solar Thermal and Photovoltaic Systems
- Ranque-Hilsch vortex tube
- Integrated Energy Systems Optimization
- Wind Energy Research and Development
- Grey System Theory Applications
- Infrared Thermography in Medicine
- Engineering Technology and Methodologies
- Coal Properties and Utilization
- Advanced Decision-Making Techniques
- Water resources management and optimization
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Advanced Image Fusion Techniques
- Simulation and Modeling Applications
- Geothermal Energy Systems and Applications
- Machine Fault Diagnosis Techniques
Zhengzhou University of Aeronautics
2024
Institute of Coal Chemistry
2021-2023
Beijing University of Technology
2020
Zhejiang Gongshang University
2014
Engineering (Italy)
2014
Tianjin Geothermal Exploration, Development and Design Institute (China)
2013
Power-to-hydrogen conversion via water electrolysis using renewable energy-sourced electricity has been considered for large-scale energy storage and grid balancing. Unfortunately, the state-of-the-art proton exchange membrane (PEM) electrolyzers are costly low in efficiency because of their use expensive iridium catalysts high overpotential to overcome barrier oxygen evolution reaction. Here, we demonstrate a low-cost highly efficient PEM hydrogen peroxide electrolyzer toward...
Hydrogen peroxide (H 2 O ) formed via the two-electron oxygen reduction reaction (2e-ORR) on carbon-based platinum group metal-free (PGM-free) catalysts at elevated temperature can cause catalyst degradation in fuel cells. In this work, we studied effects of selectivity iron- and nitrogen-doped carbon (Fe–N–C) for 2e- 4e-ORR acidic electrolyte using a high-temperature rotating-ring disk electrode. The results individual-heating experiments showed that H yield increased slightly with increase...
The rapid increase of intermittent renewable energy such as wind and solar powers requires large-scale, efficient, economic, zero-emission systems for storage. 1,2 Energy storage based on the H 2 -water cycle realized by water electrolyzers fuel cells has been proposed large-scale grid-balancing. 1,3,4 However, efficiency is restricted sluggish kinetics electrochemical oxygen evolution reduction reactions in cells, respectively. 5-7 In this presentation, we will discuss concept distributed...
In order to overcome the limitations of traditional clean energy utilization methods, this paper proposed an innovative technical solution for a combined heating system that cleverly integrated solar, wind, and geothermal achieve complementarity synergized among them, thereby ensuring stable efficient utilization. First, comprehensive mathematical model was developed entire system, encompassing solar thermal subsystem, wind power generation second-stage reheating subsystem. Subsequently,...
The wind turbine power curve model is critical to a turbine’s prediction and performance analysis. However, abnormal data in the training set decrease accuracy of trained models. This paper proposes sample average approach-based method construct an interval turbine, which increases robustness against further improves accuracy. We compare our proposed methods with traditional neural network-based Bayesian models experimental data-based validations. Our shows better both computational time.
In this study, two schemes of solar electrical power generation are designed and compared according to collection area minimization. The one comprises the parabolic trough collector, dual-tank molten salt heat storage, Organic Rankine cycle. other consists photovoltaic cell, polymer electrolyte membrane water electrolyzer, fuel cell. effects irradiation value, environmental temperature, energy storage type on thermodynamic performance were investigated. results indicated that value had a...
Power-to-hydrogen conversion in a proton exchange membrane (PEM) water electrolyzer requires costly iridium-based catalysts and high voltage to overcome the energy barrier of oxygen evolution reaction. Here, we demonstrate highly efficient PEM hydrogen peroxide toward power-to-hydrogen for onsite production storage. This design utilizes facile oxidation reaction (HPOR), significantly reducing anode potential cell voltage. Using iridium-free HPOR catalysts, electrolyzers work at remarkably...
Hydrogen peroxide (H2O2) formed via the two-electron oxygen reduction reaction (2e-ORR) on Fe-N-C catalysts at elevated temperatures can cause catalyst degradation in fuel cells. In this work, we studied effects of temperature selectivity for 2e- and 4e-ORRs acidic electrolytes. The results showed that H2O2 yield increased with increasing temperature, prolonged high-temperature exposure under ORR polarization conditions led to higher yield. These were further explained by means a kinetic...
Future large-scale application of intermittent renewable sourced energy requires low cost, efficient, and less resource-demanding storage systems for grid balancing. Conventional unitized regenerative fuel cells (URFCs) based on the water-H2 cycle are promising but suffer from high overpotential efficiency. Herein, we demonstrate a highly efficient hydrogen peroxide (H2O2) cell (UR-HPCC) storage. The prototype utilized carbon-based platinum group metal-free (PGM-free) catalyst with...
Hydrogen peroxide (H2O2) formed via the two-electron oxygen reduction reaction (2e-ORR) on Fe-N-C catalysts at elevated temperatures can cause catalyst degradation in fuel cells. In this work, we studied effects of temperature selectivity for 2e- and 4e-ORRs acidic electrolytes. The results showed that H2O2 yield increased with increasing temperature, prolonged high-temperature exposure under ORR polarization conditions led to higher yield. These were further explained by means a kinetic...