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A High-Efficiency Electrocatalyst for Oxidizing Glucose: Ultrathin Nanosheet Co-Based Organic Framework Assemblies

Author:
Li, Qing, Shao, Zhifang, Han, Ting, Zheng, Mingbo, Pang, Huan
Source:
ACS sustainable chemistry & engineering 2019 v.7 no.9 pp. 8986-8992
ISSN:
2168-0485
Subject:
catalysts, cupric oxide, electrochemistry, electrolytes, environmental degradation, glucose, gold, nanosheets, oxidation, silver, surface area
Abstract:
The glucose oxidation reaction (GOR) relies on noble metals (such as Au and Ag) and metal oxides (such as CuO, RuO₂, and IrO₂) as catalysts in a general way. However, these metal-based candidate materials often suffer from a variety of defects, including high cost, complexity of their synthesis method, and damage to the environment. Here, we synthesized ultrathin two-dimensional (2D) nanosheets (about 2.041 nm in thickness) that have a large surface area and good electrocatalytic properties for GOR. The destination product was prepared using a one-step solvothermal process involving Co(NO₃)₂·6H₂O and p-phthalic acid synthesized in the presence of DMF/C₂H₅OH solution. The as-synthesized ultrathin 2D nanosheet Co-MOFs exhibited an electrocatalytic performance for the glucose that was better than that for the shell-like multilayer assemblies Co-MOFs in the alkaline electrolyte, including a higher stability, higher sensitivity, and better activity.
Agid:
6422668