A Robust Versatile Hybrid Electrocatalyst for the Oxygen Reduction Reaction
Source abstract
Abstract
Identifying non-precious-metal catalysts with desirable overall performance for oxygen reduction reaction (ORR) in either acidic or basic media is still a bottleneck. Here, a hybrid material is reported, in which tungsten carbide (WC) and ferberite (FeWO 4 ) are attached to the Fe and N dual-doped ordered mesoporous carbon (WC-FeWO 4 @FeN-OMC) as a superior performance catalyst for the ORR in either acidic or basic media. In comparison with the frequently used Pt/C ORR catalyst (20 wt. %), our hybrid materials exhibit comparable electrocatalytic activity mainly via a 4e ORR process, better stability, and total tolerance to methanol in either acidic or basic media. These advantages, especially the outstanding stability in acidic media, render the WC-FeWO 4 @FeN-OMC as a promising potential non-precious-metal ORR catalyst in practical fuel cell applications.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electrocatalysts for Energy Conversion · Fuel Cells and Related Materials · Advanced battery technologies research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
The Key Lab of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China
Funding
Ministry of Science and Technology of the People's Republic of China · General Secretariat for Research and Technology · National Natural Science Foundation of China · Natural Science Foundation of Guangdong Province
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