Tunable Ni2P@polypyrrole nanocomposites for efficient hydrogen evolution and high-performance supercapacitors

Jong Hun Kim; Duong Nguyen Nguyen; Jaekyum Kim; Won Tae Hong; Kyoungsuk Jin; Chengkai Xia; Sangyul Baik; Jun Young Kim; Jun Young Lee; Jung Kyu Kim

doi:10.1039/D6CC01129B

Tunable Ni₂P@polypyrrole nanocomposites for efficient hydrogen evolution and high-performance supercapacitors

Jong Hun Kim,

†^a Duong Nguyen Nguyen,

†^ac Jaekyum Kim,

^a Won Tae Hong,

^a Kyoungsuk Jin,

^c Chengkai Xia,

^d Sangyul Baik,

*^e Jun Young Kim,

*^f Jun Young Lee

^a and Jung Kyu Kim

*^ab

Author affiliations

* Corresponding authors

^a School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon, Republic of Korea
E-mail: legkim@skku.edu

^b SKKU Advanced Institute of Nano Technology (SAINT), Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon, Republic of Korea

^c Department of Chemistry, Korea University, Seoul, Republic of Korea

^d School of Material Science and Engineering, North University of China, Taiyuan, China

^e Department of Mechanical Engineering, Sungkyunkwan University, Suwon, Republic of Korea
E-mail: bsy7863@skku.edu

^f Department of Biomedical-Chemical Engineering and Department of Artificial Intelligence, The Catholic University of Korea, Bucheon 14662, Republic of Korea
E-mail: june0112@catholic.ac.kr

Abstract

A composition-dependent Ni₂P@PPy nanocomposite is developed as a multifunctional electrocatalyst–supercapacitor. Upon controlling Ni₂P loading, Ni₂P@PPy switches functionality, delivering efficient hydrogen evolution (102 mV at 10 mA cm⁻²) or ultrahigh supercapacitor performance (2961 F g⁻¹ at 10 A g⁻¹), highlighting a rational strategy for integrated energy conversion and storage.

This article is part of the themed collection: ChemComm Electrocatalysis

Chemical Communications

Tunable Ni₂P@polypyrrole nanocomposites for efficient hydrogen evolution and high-performance supercapacitors

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Tunable Ni₂P@polypyrrole nanocomposites for efficient hydrogen evolution and high-performance supercapacitors

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