Author(s): Liu, HQ (Liu, Hengqi); Zhao, DP (Zhao, Depeng); Liu, Y (Liu, Ying); Tong, YL (Tong, Yongli); Wu, X (Wu, Xiang); Shen, GZ (Shen, Guozhen)

Source: SCIENCE CHINA-MATERIALS DOI: 10.1007/s40843-020-1442-3 Early Access Date: SEP 2020

Abstract: Non-noble-metal electrode materials with high durability and efficiency have become the frontiers of energy conversion and storage fields. However, conventional electrode materials often show high overpotential and low conductivity. To solve this problem, we fabricate a NiMo(x)Co(2-x)layered double hydroxide (LDH)/Ni foam (NF) product through a facile hydrothermal route. The as-prepared NiMo-Co-LDH/NF catalyst possesses an overpotential of 123 mV for hydrogen evolution reaction (HER) at 10 mA cm(-2)and 279 mV for oxygen evolution reaction (OER) at 20 mA cm(-2). The as obtained product exhibits excellent overall water splitting performances. Meanwhile, as the electrode material for supercapacitor, it delivers high specific capacitance and excellent cyclic performance. The asymmetric supercapacitor assembled with NiMoCo-LDH/NF//active carbon exhibits 93% of its initial capacity after 8000 cycles.

Accession Number: WOS:000570074300001

Author Identifiers:

Author        Web of Science ResearcherID        ORCID Number

Wu, Xiang         I-2600-2014         0000-0001-8894-5188

ISSN: 2095-8226

eISSN: 2199-4501

Full Text: https://link.springer.com/article/10.1007/s40843-020-1442-3