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Significantly Improved Electrocatalytic Activity of Copper‐Based Structures that Evolve from a Metal‐Organic Framework Induced by Cathodization Treatment
Author(s) -
Shi Libo,
Niu Xiangheng,
Zhao Hongli,
Lan Minbo
Publication year - 2017
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201600625
Subject(s) - electrocatalyst , metal organic framework , electrochemistry , copper , materials science , electron transfer , metal , cathodic protection , chemical engineering , inert , inorganic chemistry , nanotechnology , chemistry , electrode , metallurgy , photochemistry , organic chemistry , adsorption , engineering
Whereas metal‐organic frameworks (MOFs) are being widely explored in the application of electrocatalysis, the electro‐inert organic ligands in MOFs have negative effects on electron transfer. Here, we suggest a facile electrochemical cathodization treatment for the controllable evolution of a Cu‐MOF to improve its electrocatalytic performance. When a cathodic potential was applied, Cu‐based structures evolving from Cu‐MOF with different crystal phases, surface compositions, and morphologies were harvested by controlling the cathodization time. The obtained copper‐based structures were found to have much higher activities than the as‐synthesized Cu‐MOF for glucose electrocatalysis in alkaline media. A 60 second cathodization treatment resulted in the largest sensitivity for glucose electrocatalytic sensing.