Grass-like NixSey nanowire arrays shelled with NiFe LDH nanosheets as a 3D hierarchical core–shell electrocatalyst for efficient upgrading of biomass-derived 5-hydroxymethylfurfural and furfural. Issue 1 (17th November 2021)

• Record Type: Journal Article
• Authors: Zhong, Yan; Ren, Ru-Quan; Wang, Jian-Bo; Peng, Yi-Yi; Li, Qiang; Fan, Yong-Ming
• Is Part Of: Catalysis science & technology. Volume 12:Issue 1(2022)
• Page Start: 201
• Page End: 211
• Publication Date: 2021-11-17
• Subjects: Catalysis -- Periodicals; 541.395
• DOI: 10.1039/d1cy01816g
• Languages: English
• ISSNs: 2044-4753

Abstract

Abstract : In situ synthesis of Ni x Se y –NiFe LDH core–shell nanoarrays on nickel foam for electrochemical oxidation of 5-hydroxymethylfurfural and furfural. Abstract : Electrocatalytic upgrading of biomass represents a promising way for the green synthesis of value-added fine chemicals. Rational construction of highly active and low-cost electrocatalysts with superior durability is of great importance for promoting this electrochemical process. In this work, we reported a novel 3D hierarchical Ni x Se y –NiFe layered double hydroxide (LDH) core–shell nanostructure in situ grown on Ni foam (Ni x Se y – NiFe@NF) for efficient electrocatalytic oxidation of biomass-derived 5-hydroxymethylfurfural (HMF) to 2, 5-furandicarboxylic acid (FDCA) and furfural (FUR) to furoic acid (FurAc), respectively. By virtue of the excellent electrical conductivity and good mechanical strength of the Ni x Se y nanowire core, abundant exposed active sites of the NiFe LDH nanosheet shell, and the open structure of the hierarchical nanoarrays, the integrated core–shell Ni x Se y –NiFe LDH@NF electrode exhibited outstanding catalytic performance for HMF and FUR oxidation by obtaining considerable yields of FDCA (99.3%) and FurAc (99.7%) with high faradaic efficiency (FE) for FDCA (98.9%) and FurAc (99.5%), as well as superior stability retaining 96.7% FE for FDCA and 97.1% FE for FurAc after six successive electrolysis cycles. This work offers an effective approach to engineer novel electrocatalysts towards efficient upgrading of biomass-derived platform chemicals.