Heterogeneous Co(OH)2 nanoplates/Co3O4 nanocubes enriched with oxygen vacancies enable efficient oxygen evolution reaction electrocatalysis. Issue 39 (2nd October 2018)

• Record Type: Journal Article
• Authors: Xu, Hui; Wei, Jingjing; Zhang, Min; Liu, Chaofan; Shiraishi, Yukihide; Wang, Caiqin; Du, Yukou
• Is Part Of: Nanoscale. Volume 10:Issue 39(2018)
• Page Start: 18468
• Page End: 18472
• Publication Date: 2018-10-02
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/c8nr05883k
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : The heterogeneous Co(OH)2 nanoplate/Co3 O4 nanocube hybrids with rich oxygen vacancies display excellent electrocatalytic activity and durability towards the OER, holding great potential for practical water oxidation. Abstract : Heterogeneous Co(OH)2 nanoplate/Co3 O4 nanocube hybrids with rich oxygen vacancies have been constructed through a controllable approach. The high surface areas of such unique nanohybrids together with abundant oxygen vacancies provide more surface active sites, which can facilitate the charge transfer and boost the exchange of intermediates. Specifically, the resultant Co(OH)2 nanoplate/Co3 O4 nanocube hybrids display outstanding oxygen evolution reaction (OER) performances with a low overpotential of 281 mV at 10 mA cm −2 and excellent durability after continuous CV of 3000 cycles, shedding light for large-scale applications in practical water splitting.