TY - GEN
T1 - Preparation and research of AuNi cathode catalyst for direct methanol fuel cell
AU - Yan, Shaohui
AU - Zhu, Weili
AU - Zhang, Shichao
PY - 2012
Y1 - 2012
N2 - AuNi alloy was synthesized by vacuum arc melting in high-purity argon atmosphere. The AuNi alloy was characterized by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), and X-ray photoelectron spectroscopy (XPS). The results of EDS indicated that Au and Ni atoms were well-distributed in the alloy. Moreover, the results of XPS exhibited an electronic transfer from Ni to Au in AuNi phase. The Electrocatalytic oxygen reduction reaction (ORR) activity and the methanol tolerance of the AuNi alloy were respectively investigated using the RDE method and the electrochemical cyclic voltammetry. The results suggested that O 2 was directly oxidized to H 2O on the AuNi catalyst via an approximate four-electron reduction pathway, and that the AuNi catalyst had a high electrocatalytic activity for the ORR and an acceptable methanol tolerance, simultaneously.
AB - AuNi alloy was synthesized by vacuum arc melting in high-purity argon atmosphere. The AuNi alloy was characterized by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), and X-ray photoelectron spectroscopy (XPS). The results of EDS indicated that Au and Ni atoms were well-distributed in the alloy. Moreover, the results of XPS exhibited an electronic transfer from Ni to Au in AuNi phase. The Electrocatalytic oxygen reduction reaction (ORR) activity and the methanol tolerance of the AuNi alloy were respectively investigated using the RDE method and the electrochemical cyclic voltammetry. The results suggested that O 2 was directly oxidized to H 2O on the AuNi catalyst via an approximate four-electron reduction pathway, and that the AuNi catalyst had a high electrocatalytic activity for the ORR and an acceptable methanol tolerance, simultaneously.
KW - AuNi alloy
KW - Cathode catalyst
KW - Direct methanol fuel cells
KW - Oxygen reduction reaction
UR - https://www.scopus.com/pages/publications/81255190729
U2 - 10.4028/www.scientific.net/AMM.130-134.1039
DO - 10.4028/www.scientific.net/AMM.130-134.1039
M3 - 会议稿件
AN - SCOPUS:81255190729
SN - 9783037852866
T3 - Applied Mechanics and Materials
SP - 1039
EP - 1043
BT - Mechanical and Electronics Engineering III
T2 - 2011 3rd International Conference on Mechanical and Electronics Engineering, ICMEE 2011
Y2 - 23 September 2011 through 25 September 2011
ER -