High-temperature proton exchange membrane fuel cells(HT-PEMFCs)have the unique advantages of fast electrode reaction kinetics,high CO tolerance,and simple water and thermal management at their operating temperature(12...High-temperature proton exchange membrane fuel cells(HT-PEMFCs)have the unique advantages of fast electrode reaction kinetics,high CO tolerance,and simple water and thermal management at their operating temperature(120-300℃),which can effectively solve the hydrogen source problem and help achieve the dual-carbon goal.The catalysts in HT-PEMFCs are mainly Pt-based catalysts,which have good catalytic activity in the oxygen reduction reaction(ORR)and hydrogen oxidation reaction(HOR).However,in HT-PEMFCs,the high load of platinum-based catalysts to alleviate the limitation of strong adsorption of phosphoric acid(PA)on the platinum surface on activity expression leads to high cost,insufficient activity,decreased activity under long-term operation and carrier corrosion.The present review mainly summarizes the latest research progress of HT-PEMFCs catalysts,systematically analyzes the application of precious metal and non-precious metal catalysts in HT-PEMFCs,and unveils the structure-activity relationship and anti-PA poisoning mechanism.The current challenges and opportunities faced by HT-PEMFCs are discussed,as well as possible future solutions.It is believed that this review can provide some inspiration for the future development of high-performance HT-PEMFC catalysts.展开更多
基金financially supported by the Key projects of National Natural Science Foundation of China(U22A20107)the key projects of the Henan Provincial Science and Technology R&D Program Joint Fund(222301420001)+1 种基金the Distinguished Young Scholars Innovation Team of Zhengzhou University(32320275)Higher Education Teaching Reform Research and Practice Project of Henan Province(2021SJGLX093Y).
文摘High-temperature proton exchange membrane fuel cells(HT-PEMFCs)have the unique advantages of fast electrode reaction kinetics,high CO tolerance,and simple water and thermal management at their operating temperature(120-300℃),which can effectively solve the hydrogen source problem and help achieve the dual-carbon goal.The catalysts in HT-PEMFCs are mainly Pt-based catalysts,which have good catalytic activity in the oxygen reduction reaction(ORR)and hydrogen oxidation reaction(HOR).However,in HT-PEMFCs,the high load of platinum-based catalysts to alleviate the limitation of strong adsorption of phosphoric acid(PA)on the platinum surface on activity expression leads to high cost,insufficient activity,decreased activity under long-term operation and carrier corrosion.The present review mainly summarizes the latest research progress of HT-PEMFCs catalysts,systematically analyzes the application of precious metal and non-precious metal catalysts in HT-PEMFCs,and unveils the structure-activity relationship and anti-PA poisoning mechanism.The current challenges and opportunities faced by HT-PEMFCs are discussed,as well as possible future solutions.It is believed that this review can provide some inspiration for the future development of high-performance HT-PEMFC catalysts.
