期刊
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
卷 46, 期 15, 页码 24343-24354出版社
WILEY-HINDAWI
DOI: 10.1002/er.8743
关键词
D-A-D type polymer; double-layered hollow carbon spheres; electrocatalyst; methanol electrooxidation; PtCu nanoparticles
资金
- National Natural Science Foundation of China [22165029, 52163020]
An effective anode electrocatalyst prepared by distributing PtCu nanoparticles on poly(EDOT-pyridine-EDOT) and poly(EDOT-pyridazine-EDOT) composited double-layered hollow carbon spheres shows favorable performance in methanol oxidation.
In this work, an effective anode electrocatalyst prepared by distribution of PtCu nanoparticles (PtCu NPs) on poly(EDOT-pyridine-EDOT) (poly[BPE]) and poly(EDOT-pyridazine-EDOT) (poly[EPE]) composited double-layered hollow carbon spheres (DLHCs) via polyol method. The structural and morphological analysis demonstrated the uniform dispersion of PtCu NPs on the poly(EPE)/DLHCs and poly(BPE)/DLHCs composite surface with an averaged diameter of 2.13 and 2.19 nm, respectively. To further investigate the electrocatalytic performance of as-synthesized hybrid catalysts, cyclic voltammetry and amperometric i-t were conducted. It was found that the poly(EPE)/DLHCs/ PtCu catalyst had favorable properties such as large electrochemical specific surface area (269.05 m(2) g(-1)) and high mass activity for methanol (1304.93 mA mg(-1)) in the acidic electrolyte, which were 1.94 and 1.23 times higher than that of poly(BPE)/DLHCs/PtCu. The low onset potential and the high oxidation current density occurred in poly(EPE)/DLHCs/PtCu, which could be contributed to the superior electronic conductivity, abundant N, S and O atoms and OH ads promoters on the poly(EPE)/DLHCs as well as the effective interaction of binary composite to PtCu NPs, implying that poly(EPE)/DLHCs/PtCu could be a promising anodic catalyst in methanol oxidation.
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