Interface engineering of 2D NiFe LDH/NiFeS heterostructure for highly efficient 5-hydroxymethylfurfural electrooxidation

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外文摘要：The electrochemical oxidation of 5-hydroxymethylfurfural(HMF)to valuable chemicals is an efficient way to upgrade biomass molecules and replace traditional catalytic synthesis.It is crucial to develop effi-cient and low-cost earth-abundant electrocatalysts to enhance catalytic performance of HMF oxidation.Herein,a new type of two-dimensional(2D)hybrid arrays consisting of NiFe layered double hydroxides(LDH)nanosheets and bimetallic sulfide(NiFeS)is constructed via interface engineering for efficient elec-trocatalytic oxidation of HMF to 2,5-furandicarboxylic acid(FDCA).The preparation process of 2D NiFe LDH/NiFeS with ultrathin heterostructure involves in anchoring a Co-based metal-organic framework(Co MOF)as template onto the carbon cloth(CC)via in-situ growth,formation of NiFe LDH on the surface of Co MOF and subsequent partial sulfidation.The electrocatalyst of NiFe LDH/NiFeS exhibits outstanding performance towards HMF oxidation,about 98.5％yield for FDCA and 97.2％Faraday efficiency(FE)in the alkaline electrolyte with 10mmol/L HMF,as well as excellent stability retaining 90.1％FE for FDCA after six cycles test.Moreover,even at an HMF concentration of 100mmol/L,the yield and FE for FDCA remain high at 83.6％and 93.6％,respectively.These findings highlight that 2D heterostructure containing abun-dant interfaces between NiFe LDH nanosheets and NiFeS can enhance the intrinsic activity of LDH and thus promote the oxidation reaction kinetics.Additionally,the synergistic effect of the bimetallic NiFe compounds also improved the selectivity of HMF conversion to FDCA.Our present work demonstrates that constructing 2D ultrathin heterostructure of NiFe LDH/NiFeS is a facile strategy via interface engi-neering to enhance the intrinsic activity of LDH electrocatalysts,which would open new avenues toward low-cost and advanced 2D nanocatalysts for sustainable energy conversion and electrochemical valoriza-tion of biomass derivatives.

外文关键词：

Electrocatalytic oxidationInterface engineering2D ultrathin heterostructureLayered double hydroxides5-Hydroxymethylfurfural

作者：

Lili Wang、Ya Yan、Rulin Li、Xujie Han、Jiahui Li、Ting Ran、Jialu Li、Baichuan Xiong、Xiaorong Song、Zhaohui Yin、Hong Wang、Qingjun Zhu、Bowen Cheng、Zhen Yin

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作者单位：

State Key Laboratory of Separation Membranes and Membrane Processes,School of Chemistry,Tiangong University,Tianjin 300387,China

School of Chemical Engineering and Technology,Tiangong University,Tianjin 300387,China

College of Chemical Engineering and Materials Science,Tianjin University of Science and Technology,Tianjin 300457,China

State Key Laboratory of Biobased Fiber Manufacturing Technology,Tianjin University of Science and Technology,Tianjin 300457,China

School of Materials Science and Engineering,Tiangong University,Tianjin 300387,China

Deutsches Elektronen-Synchrotron DESY,Platanenallee 6,Zeuthen 15738,Germany

Department of Chemistry and The Center for the Science of Materials Berlin,Humboldt-Universität zu Berlin,Berlin 12489,Germany

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出版年：

2024

DOI：

10.1016/j.cclet.2024.110011

中国化学快报(英文版)

中国化学会

中国化学快报(英文版)

CSTPCD

影响因子：0.771

ISSN：1001-8417

年,卷(期)：2024.35(9)