Progress in non-noble metal oxygen reduction electrocatalysts based on MOFs

Ren, Ziwen; Tan, Zehao; Xiang, Silei; Chen, Shiqu; Shen, Shuiyun; Zhang, Junliang

doi:10.1360/sst-2021-0162

Cited by 2 publications

(1 citation statement)

References 34 publications

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“…Since the environmental pollution caused by fossil energy restricts the sustainable development of society, exploring clean energy has become a necessity [1]. In particular, the proton exchange membrane fuel cell (PEMFC) is supposed to be the most promising sustainable power source for power generation due to its low operation temperature, high power density, and easy scalability [2,3]. Though many technical and associated fundamental breakthroughs have been achieved during the last couple of decades, there are still some problematic issues that need to be overcome before the extensive commercialization of PEMFCs [4].…”

Section: Introductionmentioning

confidence: 99%

The Oxygen Reduction Performance of Pt Supported on the Hybrid of Porous Carbon Nanofibers and Carbon Black

et al. 2022

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Proton exchange membrane fuel cells (PEMFCs) represent an outstanding clean energy alternative for next-generation power sources. The PEMFC’s performance is mainly determined by the sluggish oxygen reduction reaction (ORR) that occurs in its cathode Therefore, the use of electrocatalysts with high electrocatalytic activity and stability for improving the ORR has been a vital direction for the commercialization of PEMFCs. In this article, porous carbon nanofibers (PCNFs) based on a polyacrylonitrile/polymethyl methacrylate (PAN/PMMA) precursor were fabricated by electrospinning followed by carbonization; then, the PCNFs were mixed together with carbon black (CB) in different mass ratios as a hybrid support for Pt nanoparticles. Pt nanoparticles were deposited on the hybrid support by the ethylene glycol reduction method, and the obtained series of Pt/(PCNF + CB) were used as the oxygen reduction electrocatalyst in the cathode. Their electrocatalytic properties, as well as those of Pt/C as a reference, were investigated by cyclic voltammetry scanning (CV) and linear sweep voltammetry (LSV). The results explained that Pt/(PCNF + CB) showed a higher electrochemical activity area and half-wave potential when the PCNF/CB mass ratio was 3/2 than that of commercial Pt/C. Furthermore, the half-wave potential of Pt/(PCNF + CB) only decreased by 4 mV, which was 86 mV lower than that of commercial Pt/C (90 mV) after 2000 ADT cycles, indicating that the incorporation of PCNFs to form a hybrid support could result in corrosion resistance.

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