Co-Doped FeS2 with a porous structure for efficient electrocatalytic overall water splitting

被引：35

作者：

Gao, Lingfeng ^{[1
]}

Guo, Chengying ^{[1
]}

Liu, Xuejing ^{[1
]}

Ma, Xiaojing ^{[1
]}

Zhao, Mingzhu ^{[1
]}

Kuang, Xuan ^{[1
]}

Yang, Hua ^{[2
]}

Zhu, Xiaojiao ^{[3
,4
]}

Sun, Xu ^{[1
]}

Wei, Qin ^{[1
]}

机构：

[1] Univ Jinan, Sch Chem & Chem Engn, Key Lab Interfacial React & Sensing Anal Univ Sha, Jinan 250022, Peoples R China

[2] Liaocheng Univ, Sch Chem & Chem Engn, Shandong Prov Key Lab Chem Energy Storage & Novel, Liaocheng 252059, Shandong, Peoples R China

[3] Anhui Univ, Coll Chem & Chem Engn, Hefei 230601, Peoples R China

[4] Anhui Univ, Key Lab Funct Inorgan Mat Chem Anhui Prov, Key Lab Struct & Funct Regulat Hybrid Mat, Minist Educ, Hefei 230601, Peoples R China

来源：

NEW JOURNAL OF CHEMISTRY | 2020年 / 44卷 / 05期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

HYDROGEN EVOLUTION; OXYGEN EVOLUTION; BIFUNCTIONAL ELECTROCATALYSTS; HIGHLY EFFICIENT; PYRITE FES2; NANOSHEETS; NANOSPHERES; HYDROXIDE; RICH; NI;

D O I：

10.1039/c9nj05023j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The development of earth-abundant and high-efficiency electrocatalysts for overall water splitting is highly fascinating and still presents a challenge caused by the low activity for both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) at the same time. In this paper, active cobalt-doped pyrite nanospheres with a porous structure are fabricated for the first time as advanced catalysts for water splitting in an alkaline solution. With the incorporation of cobalt atoms, the electronic structure of pyrite is well-tuned, with high conductivity as well as more active sites being obtained, which finally results in a superior bifunctional water splitting performance. Only 1.60 V is required to reach the current density of 10 mA cm(-2), which is smaller than that of other transition metal sulfides.

引用

页码：1711 / 1718

页数：8

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