TY - JOUR
T1 - Novel highly active and selective Co[sbnd]N[sbnd]S[sbnd]C efficient ORR catalyst derived from in-situ egg gel pyrolysis
AU - Cao, Yue
AU - Sun, Yegeng
AU - Han, Ning
AU - Li, Xue
AU - Wang, Qing
AU - Sun, Kuizhao
AU - Si, Weimeng
AU - Wang, Fagang
AU - Zhao, Xiaolin
AU - Bokhari, Awais
AU - Mubashir, Muhammad
AU - Chuah, Lai Fatt
AU - Show, Pau Loke
N1 - Generated from Scopus record by KAUST IRTS on 2023-09-20
PY - 2023/2/1
Y1 - 2023/2/1
N2 - 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.
AB - 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.
UR - https://linkinghub.elsevier.com/retrieve/pii/S0016236122032562
UR - http://www.scopus.com/inward/record.url?scp=85140455426&partnerID=8YFLogxK
U2 - 10.1016/j.fuel.2022.126432
DO - 10.1016/j.fuel.2022.126432
M3 - Article
SN - 0016-2361
VL - 333
JO - Fuel
JF - Fuel
ER -