Electrocatalytic performance of cubic NiS2 and hexagonal NiS for oxygen reduction reaction

Taizhong Huang; Hengyi Fang; Luping Xu; Zuankai Wang; Ying Xin; Jiemei Yu; Shuo Yao; Zhaoliang Zhang

doi:10.1016/j.jcat.2018.01.019

Electrocatalytic performance of cubic NiS₂ and hexagonal NiS for oxygen reduction reaction

Taizhong Huang, Hengyi Fang, Luping Xu, Zuankai Wang, Ying Xin, Jiemei Yu, Shuo Yao, Zhaoliang Zhang

Research output: Journal article publication › Journal article › Academic research › peer-review

46 Citations (Scopus)

Abstract

Developing high performance and low cost non-precious metal based catalysts for oxygen reduction reaction (ORR) is essential for a wide range of industrial applications of fuel cells. Here, we report the catalytic performance of a novel cubic NiS₂ and hexagonal NiS catalysts for ORR. Both the NiS₂ and NiS are synthesized by facile one-pot hydrothermal method and exhibit a high level of purity. Compared to conventional Pt/C catalysts, the NiS₂ catalyst yields a higher peak current intensity and enhanced long time running stability despite the half wave potential is 40 mV lower than that of Pt/C catalyst. Rotating disc electrode tests show that the NiS₂ catalyzes ORR mainly happening through 4-electron pathway. Thus, the NiS catalyzes ORR happening through 2-electron pathway. We envision that the NiS₂ catalyst has great potential to be alternate for the Pt/C catalyst for ORR in alkaline fuel cells.

Original language	English
Pages (from-to)	223-232
Number of pages	10
Journal	Journal of Catalysis
Volume	359
DOIs	https://doi.org/10.1016/j.jcat.2018.01.019
Publication status	Published - Mar 2018
Externally published	Yes

Keywords

Catalyst
Electrocatalysis
Electron transfer number
NiS
Oxygen reduction reaction

ASJC Scopus subject areas

Catalysis
Physical and Theoretical Chemistry

More information

10.1016/j.jcat.2018.01.019

Cite this

@article{ef54d6b5c9bf4d6185bc4ef530ec1394,

title = "Electrocatalytic performance of cubic NiS2 and hexagonal NiS for oxygen reduction reaction",

abstract = "Developing high performance and low cost non-precious metal based catalysts for oxygen reduction reaction (ORR) is essential for a wide range of industrial applications of fuel cells. Here, we report the catalytic performance of a novel cubic NiS2 and hexagonal NiS catalysts for ORR. Both the NiS2 and NiS are synthesized by facile one-pot hydrothermal method and exhibit a high level of purity. Compared to conventional Pt/C catalysts, the NiS2 catalyst yields a higher peak current intensity and enhanced long time running stability despite the half wave potential is 40 mV lower than that of Pt/C catalyst. Rotating disc electrode tests show that the NiS2 catalyzes ORR mainly happening through 4-electron pathway. Thus, the NiS catalyzes ORR happening through 2-electron pathway. We envision that the NiS2 catalyst has great potential to be alternate for the Pt/C catalyst for ORR in alkaline fuel cells.",

keywords = "Catalyst, Electrocatalysis, Electron transfer number, NiS, Oxygen reduction reaction",

author = "Taizhong Huang and Hengyi Fang and Luping Xu and Zuankai Wang and Ying Xin and Jiemei Yu and Shuo Yao and Zhaoliang Zhang",

note = "Funding Information: This work was financial supported by the Science Development Project of Shandong Provincial (Nos. 2017GGX40115, 2016GGX102038), National Natural Science Foundation of China (No. 21407060), Shandong Provincial Natural Science Foundation (Nos. ZR2015EM044, 2014BQ032). Funding Information: This work was financial supported by the Science Development Project of Shandong Provincial (Nos. 2017GGX40115 , 2016GGX102038 ), National Natural Science Foundation of China (No. 21407060 ), Shandong Provincial Natural Science Foundation (Nos. ZR2015EM044 , 2014BQ032 ). Publisher Copyright: {\textcopyright} 2018 Elsevier Inc.",

year = "2018",

month = mar,

doi = "10.1016/j.jcat.2018.01.019",

language = "English",

volume = "359",

pages = "223--232",

journal = "Journal of Catalysis",

issn = "0021-9517",

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AU - Huang, Taizhong

AU - Fang, Hengyi

AU - Xu, Luping

AU - Wang, Zuankai

AU - Xin, Ying

AU - Yu, Jiemei

AU - Yao, Shuo

AU - Zhang, Zhaoliang

N1 - Funding Information: This work was financial supported by the Science Development Project of Shandong Provincial (Nos. 2017GGX40115, 2016GGX102038), National Natural Science Foundation of China (No. 21407060), Shandong Provincial Natural Science Foundation (Nos. ZR2015EM044, 2014BQ032). Funding Information: This work was financial supported by the Science Development Project of Shandong Provincial (Nos. 2017GGX40115 , 2016GGX102038 ), National Natural Science Foundation of China (No. 21407060 ), Shandong Provincial Natural Science Foundation (Nos. ZR2015EM044 , 2014BQ032 ). Publisher Copyright: © 2018 Elsevier Inc.

PY - 2018/3

Y1 - 2018/3

N2 - Developing high performance and low cost non-precious metal based catalysts for oxygen reduction reaction (ORR) is essential for a wide range of industrial applications of fuel cells. Here, we report the catalytic performance of a novel cubic NiS2 and hexagonal NiS catalysts for ORR. Both the NiS2 and NiS are synthesized by facile one-pot hydrothermal method and exhibit a high level of purity. Compared to conventional Pt/C catalysts, the NiS2 catalyst yields a higher peak current intensity and enhanced long time running stability despite the half wave potential is 40 mV lower than that of Pt/C catalyst. Rotating disc electrode tests show that the NiS2 catalyzes ORR mainly happening through 4-electron pathway. Thus, the NiS catalyzes ORR happening through 2-electron pathway. We envision that the NiS2 catalyst has great potential to be alternate for the Pt/C catalyst for ORR in alkaline fuel cells.

AB - Developing high performance and low cost non-precious metal based catalysts for oxygen reduction reaction (ORR) is essential for a wide range of industrial applications of fuel cells. Here, we report the catalytic performance of a novel cubic NiS2 and hexagonal NiS catalysts for ORR. Both the NiS2 and NiS are synthesized by facile one-pot hydrothermal method and exhibit a high level of purity. Compared to conventional Pt/C catalysts, the NiS2 catalyst yields a higher peak current intensity and enhanced long time running stability despite the half wave potential is 40 mV lower than that of Pt/C catalyst. Rotating disc electrode tests show that the NiS2 catalyzes ORR mainly happening through 4-electron pathway. Thus, the NiS catalyzes ORR happening through 2-electron pathway. We envision that the NiS2 catalyst has great potential to be alternate for the Pt/C catalyst for ORR in alkaline fuel cells.

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