Synthesis of Co0.5 Mn0.1 Ni0.4 C2 O4 ⋅n H2 O Micropolyhedrons: Multimetal Synergy for High-Performance Glucose Oxidation Catalysis

Nan Li; Qing Li; Meijuan Yuan; Xiaotian Guo; Shasha Zheng; Huan Pang

doi:10.1002/asia.201900361

Synthesis of Co_0.5 Mn_0.1 Ni_0.4 C₂ O₄ ⋅n H₂ O Micropolyhedrons: Multimetal Synergy for High-Performance Glucose Oxidation Catalysis

Chem Asian J. 2019 Jul 1;14(13):2259-2265. doi: 10.1002/asia.201900361. Epub 2019 May 28.

Authors

Nan Li¹, Qing Li¹, Meijuan Yuan¹, Xiaotian Guo¹, Shasha Zheng¹, Huan Pang¹

Affiliation

¹ School of Chemistry and Chemical Engineering, Guanglin College, Yangzhou University, Yangzhou, 225009, Jiangsu, P. R. China.

PMID: 30977269
DOI: 10.1002/asia.201900361

Abstract

Owing to the synergy between metals, trimetal oxalate micropolyhedrons have been synthesized by means of a room-temperature coprecipitation strategy. The effect of their nanoscale size on their electrochemical performance toward glucose oxidation was investigated. In particular, the Co_0.5 Mn_0.1 Ni_0.4 C₂ O₄ ⋅n H₂ O micropolyhedrons illustrated prominent electrocatalytic activity for the glucose oxidation reaction. Additionally, the Co_0.5 Mn_0.1 Ni_0.4 C₂ O₄ ⋅n H₂ O micropolyhedrons, when used as an electrode material, illustrated an excellent lower limit of detection (1.5 μm), a wide detection concentration range (0.5-5065.5 μm), and a high sensitivity (493.5 μA mm^-1 cm^-2 ). Further analysis indicated that the effectively improved conductivity may have been due to the small size of the materials, and it was easier to form a flat film when Nafion was coated onto the glassy carbon electrode.

Keywords: electrochemistry; glucose; heterogeneous catalysis; micropolyhedrons; oxidation.