Boosting the Performance of Low-Platinum Fuel Cells via a Hierarchical and Interconnected Porous Carbon Support
Source abstract
Abstract
The design of a low-platinum (Pt) proton-exchange-membrane fuel cell (PEMFC) can reduce its high cost. However, the development of a low-Pt PEMFC is severely hindered by the high oxygen transfer resistance in the catalyst layer. Herein, a carbon with interconnected and hierarchical pores is synthesized as a support for the low-Pt catalyst to lower the oxygen transfer resistance. A H 2 –air fuel cell assembled by Pt/hierarchical porous carbon shows 1610 mW/cm 2 peak power density, 2230 mA/cm 2 current density at 0.60 V, and only 18.4 S/m local oxygen transfer resistance with 0.10 mg Pt /cm 2 Pt loading at the cathode, which far exceeds those of various carbon black supports and commercially used Pt/C catalysts. Both the experimental and simulation results have shown the advancement of hierarchical pores toward the high efficiency of oxygen transportation.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electrocatalysts for Energy Conversion · Fuel Cells and Related Materials · Advancements in Solid Oxide Fuel Cells
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Science and Technology on Advanced Ceramic Fibers and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, 109 De Ya Road, Changsha 410073, Hunan, China
Department of Aviation Oil and Material, Air Force Logistics Academy, Xuzhou 221000, China
College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
Funding
Natural Science Foundation of Jiangsu Province · Xuzhou Science and Technology Program · National Outstanding Youth Foundation of China
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