Hierarchical Interconnected NiMoN with Large Specific Surface Area and High Mechanical Strength for Efficient and Stable Alkaline Water/Seawater Hydrogen Evolution

Minghui Ning; Yu Wang; Libo Wu; Lun Yang; Zhaoyang Chen; Shaowei Song; Yan Yao; Jiming Bao; Shuo Chen; Zhifeng Ren

doi:10.1007/s40820-023-01129-y

Nano-Micro Letters (Jun 2023)

Hierarchical Interconnected NiMoN with Large Specific Surface Area and High Mechanical Strength for Efficient and Stable Alkaline Water/Seawater Hydrogen Evolution

Minghui Ning,
Yu Wang,
Libo Wu,
Lun Yang,
Zhaoyang Chen,
Shaowei Song,
Yan Yao,
Jiming Bao,
Shuo Chen,
Zhifeng Ren

Affiliations

Minghui Ning: Department of Physics and Texas Center for Superconductivity at the University of Houston (TcSUH), University of Houston
Yu Wang: Cullen College of Engineering and TcSUH, University of Houston
Libo Wu: Cullen College of Engineering and TcSUH, University of Houston
Lun Yang: School of Materials Science and Engineering, Hubei Normal University
Zhaoyang Chen: Department of Electrical and Computer Engineering and TcSUH, University of Houston
Shaowei Song: Department of Physics and Texas Center for Superconductivity at the University of Houston (TcSUH), University of Houston
Yan Yao: Department of Electrical and Computer Engineering and TcSUH, University of Houston
Jiming Bao: Department of Electrical and Computer Engineering and TcSUH, University of Houston
Shuo Chen: Department of Physics and Texas Center for Superconductivity at the University of Houston (TcSUH), University of Houston
Zhifeng Ren: Department of Physics and Texas Center for Superconductivity at the University of Houston (TcSUH), University of Houston

DOI: https://doi.org/10.1007/s40820-023-01129-y
Journal volume & issue: Vol. 15, no. 1
pp. 1 – 16

Abstract

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Highlights A hierarchical interconnected NiMoN (HW-NiMoN-2h) was successfully prepared based on a rational combination of hydrothermal and water bath processes. HW-NiMoN-2h exhibited high hydrogen evolution reaction (HER) activity due to its large specific surface area and good stability due to its enhanced mechanical strength. In 1 M KOH seawater, HW-NiMoN-2h delivered current density of 1 A cm−2 for HER at an overpotential of 130 mV and showed excellent stability over 70 h at 1 A cm−2.

Published in Nano-Micro Letters

ISSN: 2311-6706 (Print); 2150-5551 (Online)
Publisher: SpringerOpen
Country of publisher: Germany
LCC subjects: Technology
Website: http://www.springer.com/40820

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