Diatomite-Templated Fabrication of Porous N, S-Co-Doped Carbon as High-Performance Catalyst for Oxygen Reduction
- 1School of Clinical Medicine, Hainan Vocational University of Science and Technology, Haikou 571126, China
- 2School of Chemistry and Chemical Engineering, Hainan University, Haikou 570228, China
- 3Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, School of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China
Abstract
Oxygen reduction reaction (ORR) catalysts free of noble metals serve an essential function in boosting the practical deployment of fuel cells and metal–air batteries. Herein, an N, S-co-doped porous carbon electrocatalyst was fabricated using polyacrylonitrile (PAN), thiourea and diatomite as the precursors, sulfur source and hard template, respectively. The optimal catalyst (S-PAC-D) exhibits a high ORR performance, with a half-wave potential of 0.84 V (vs. RHE), as well as a predominant four-electron pathway, short-term stability and methanol resistance. After being constructed as a zinc–air battery (ZAB), it can deliver a peak power density of 126.6 mW·cm−2 and a capacity of 804.1 mAh g−1Zn. This work offers a scalable, low-cost versatile methodology to fabricate high-performance non-noble metal ORR catalysts, which holds great promise for clean energy conversion devices.
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BibTeX
@article{wang2026diatomitetemplated,
title = {{Diatomite-Templated Fabrication of Porous N, S-Co-Doped Carbon as High-Performance Catalyst for Oxygen Reduction}},
author = {Qingqing Wang and Jiayi Su and Haoxiong Nan and Chenghang You},
journal = {Molecules (Basel, Switzerland)},
year = {2026},
month = oct,
doi = {10.3390/molecules31193526},
url = {https://europepmc.org/article/PMC/PMC13667131},
note = {CC BY},
}
RIS
TY - JOUR
TI - Diatomite-Templated Fabrication of Porous N, S-Co-Doped Carbon as High-Performance Catalyst for Oxygen Reduction
AU - Qingqing Wang
AU - Jiayi Su
AU - Haoxiong Nan
AU - Chenghang You
PY - 2026
DA - 2026/10/01
JO - Molecules (Basel, Switzerland)
DO - 10.3390/molecules31193526
UR - https://europepmc.org/article/PMC/PMC13667131
AB - Oxygen reduction reaction (ORR) catalysts free of noble metals serve an essential function in boosting the practical deployment of fuel cells and metal–air batteries. Herein, an N, S-co-doped porous carbon electrocatalyst was fabricated using polyacrylonitrile (PAN), thiourea and diatomite as the precursors, sulfur source and hard template, respectively. The optimal catalyst (S-PAC-D) exhibits a high ORR performance, with a half-wave potential of 0.84 V (vs. RHE), as well as a predominant four-electron pathway, short-term stability and methanol resistance. After being constructed as a zinc–air battery (ZAB), it can deliver a peak power density of 126.6 mW·cm−2 and a capacity of 804.1 mAh g−1Zn. This work offers a scalable, low-cost versatile methodology to fabricate high-performance non-noble metal ORR catalysts, which holds great promise for clean energy conversion devices.
SN - 1420-3049
ER -