Synthesis of Co0.5Mn0.1Ni0.4C2O4⋅n H2O Micropolyhedrons: Multimetal Synergy for High‐Performance Glucose Oxidation Catalysis. Issue 13 (28th May 2019)

• Record Type: Journal Article
• Authors: Li, Nan; Li, Qing; Yuan, Meijuan; Guo, Xiaotian; Zheng, Shasha; Pang, Huan
• Is Part Of: Chemistry, an Asian journal. Volume 14:Issue 13(2019)
• Page Start: 2259
• Page End: 2265
• Publication Date: 2019-05-28
• Subjects: electrochemistry -- glucose -- heterogeneous catalysis -- micropolyhedrons -- oxidation; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/asia.201900361
• Languages: English
• ISSNs: 1861-4728

Abstract

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 Co0.5 Mn0.1 Ni0.4 C2 O4 ⋅ n H2 O micropolyhedrons illustrated prominent electrocatalytic activity for the glucose oxidation reaction. Additionally, the Co0.5 Mn0.1 Ni0.4 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. Abstract : Sweet synergy : A series of Co/Mn/Ni oxalate micropolyhedrons were fabricated by means of a room‐temperature coprecipitation strategy. Co/Mn/Ni oxalate‐modified glassy carbon was found to be an excellent electrode material for catalyzing glucose oxidation owing to the synergistic effects of the multiple metals (see figure).