Novel highly active and selective Co[sbnd]N[sbnd]S[sbnd]C efficient ORR catalyst derived from in-situ egg gel pyrolysis

Yue Cao, Yegeng Sun, Ning Han, Xue Li, Qing Wang, Kuizhao Sun, Weimeng Si, Fagang Wang, Xiaolin Zhao, Awais Bokhari, Muhammad Mubashir, Lai Fatt Chuah, Pau Loke Show

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Exploring the influence of various heteroatoms on M[sbnd]Nx[sbnd]C and developing novel synthetic M[sbnd]N[sbnd]C of strategies are great significance to improve the efficiency of continuable energy transformation and storage technologies. In this work, an economic and environmental in-situ doping synthesis scheme for extensible synthesis Co, N and S doped multiple porous-structure carbon (Co-NSEC) using egg gel as carbon precursor was reported. The Co-NSEC were certified to possess multiple porous structure, large surface area and uniform Co distribution. Moreover, systematic characterization results and electrochemical study revealed that thiophene sulfur could enhance Co-Nx oxygen reduction reaction (ORR) catalytic ability. The Co-NSEC catalysts exhibit excellent ORR performance akin to Pt/C (onset potential 0.947 V vs RHE, half-wave potential 0.842 V vs RHE, limiting current density 5.70 mA cm−2) and better alcohol resistance and durability in alkaline solutions. The Co-NSEC electrocatalysts are promising as Pt replacement and are desired to be applied in the aspect of fuel cells.
Original languageEnglish (US)
JournalFuel
Volume333
DOIs
StatePublished - Feb 1 2023
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2023-09-20

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Organic Chemistry
  • General Chemical Engineering
  • Fuel Technology

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