Nitrogen-doped carbon coated palygorskite as an efficient electrocatalyst support for oxygen reduction reaction
作者： Rongfang Wang , Jingchun Jia , Hao Li , Xusheng Li , Hui Wang
DOI: 10.1016/J.ELECTACTA.2011.02.066
关键词:
摘要: Abstract An electrocatalyst support, nitrogen-doped graphitic layer (CN x ) coated palygorskite (PLS) (donated as PLS@CN ), is synthesized by carbonizing the polypyrrole (PPy) PLS and explored for first time a cathode support in proton exchange membrane fuel cell. The structural chemical properties of are investigated Fourier-Transform infrared spectrometer, thermogravimetric analysis, X-ray diffraction transmission electron microscopy. electrocatalytic activity stability Pt/PLS@CN toward oxygen reduction reaction (ORR) studied cyclic voltammetry (CV) steady state polarization measurements. Upon loading Pt (20 wt%), catalysts exhibit superior catalytic performance during ORR, surpassing conventional Pt/C (Vulcan XC-72) catalysts. High good can be attributed to nitrogen atom incorporation SiO 2 component PLS.
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