Recent advances in the anode catalyst layer for proton exchange membrane fuel cells

Strengthening Pt/WOx interfacial interactions to increase the CO tolerance of Pt for hydrogen oxidation reaction

“…1,2 Currently, coal gasification and methane reforming are widely used for H 2 production. 3,4 However, these cheap H 2 resources inevitably contain trace amounts of CO (4100 ppm), which causes severe poisoning of Pt-based catalysts and results in significant degradation of PEMFC performance by blocking the active sites on the catalyst surface due to preferential CO adsorption on Pt. [5][6][7][8] The CO poisoning issue occurs mainly due to the overly strong Pt-CO chemical bond and the poor H 2 O dissociation ability of Pt toward CO elimination.…”

Controllable Porous Nanogrids of Chromium Nitride with Strong Metal–Support Interactions for Achieving Stable Oxygen Reduction Reaction

“…As the world’s energy system is revolutionizing, PEMFCs have become a crucial technology in promoting the development of Green Hydrogen Economies. − The combination of their great efficiency, environmental friendliness, and reasonable power density is outstanding . However, despite significant advancements in PEMFC technologies and their successful commercialization in H 2 -powered vehicles, several key challenges hinder their widespread application, especially in relation to oxygen reduction reaction (ORR) catalysts. − In conventional PEMFCs, carbon-supported Pt catalysts are commonly employed as electrocatalysts.…”

Designing proton exchange membrane fuel cells with high specific power density

“…17–19 Among them, PEMFCs exhibit high energy conversion efficiency, high reliability, and ultralow pollution compared to general fuel cells as well as a high power density. 20–22 Furthermore, its operating temperature is lower, which greatly simplifies the structure and reduces the manufacturing costs of the battery while also ensuring that it has a relatively broad application market. 23,24…”

“…[17][18][19] Among them, PEMFCs exhibit high energy conversion efficiency, high reliability, and ultralow pollution compared to general fuel cells as well as a high power density. [20][21][22] Furthermore, its operating temperature is lower, which greatly simplies the structure and reduces the manufacturing costs of the battery while also ensuring that it has a relatively broad application market. 23,24 Since Sir Grove proposed the principle of fuel-cell power generation in 1839 as an energy conversion strategy, fuel cells have garnered attention from researchers owing to their high efficiency, environmental friendliness, and excellent reliability.…”