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Citation: WANG Jie-Ying, CHEN Yan-Xin, CHEN Sheng-Pei, WANG Peng, SUN Shi-Gang. Electrochemical Preparation of Fe Core/Pt Shell Nanoparticle Modified Glassy Carbon Electrode and Their Electrocatalytic Activities for Nitrite Reduction[J]. Chinese Journal of Applied Chemistry, ;2010, 27(11): 1296-1300. doi: 10.3724/SP.J.1095.2010.00018 shu

Electrochemical Preparation of Fe Core/Pt Shell Nanoparticle Modified Glassy Carbon Electrode and Their Electrocatalytic Activities for Nitrite Reduction

Department of Chemistry, College of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen 361005

Received Date: 7 January 2010
Revised Date: 8 April 2010

Iron nanoparticles were uniformly deposited on glassy carbon electrode by electrochemical cyclic voltammetry,and Fe core/Pt shell nanoparticles(nano-PtFe) were further obtained through "galvanic replacement". SEM observation illustrated that cuboid nanoparticles with average sizes,ca.60 nm,dispersing uniformly on GC electrode surfaces. The electrocatalytical activities for nitrite reduction by nano-Fe/GC,nano-Pt/GC and nano-PtFe/GC electrodes were studied by cyclic voltammetry(CV). The catalytic activity is in the order of:nano-Fe/GC < nano-Pt/GC < nano-PtFe/GC. The onset potential(E_i) of nitrite reduction on nano-PtFe/GC electrode is positively shifted 0.14V,and the steady reduction current density(i_p) is about 3 times of that from nano-Pt/GC electrode.
- core-shell nanoparticles,
- Fe,
- Pt,
- electrodeposition,
- GC electrode,
- nitrite reduction
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