Pd-on-NiCu nanosheets with enhanced electro-catalytic performances for methanol oxidation
Pd-on-NiCu nanosheets with enhanced electro-catalytic performances for methanol oxidation
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Pd-on-NiCu纳米片对甲醇氧化具有增强的电催化性能
DOI:
10.1016/j.jallcom.2016.05.008
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发表时间:
2016-11
影响因子:
6.2
通讯作者:
Wen Ming
中科院分区:
文献类型:
--
作者:
Li Xiaomeng;Wen Ming
For the exploration of catalysts with excellent performance in alkaline fuel cells, high-performance two-dimensional (2D) Pd-on-NiCu nanosheets were synthesized through the kinetics controlling synthesis of NiCu nanosheets followed by Pd nanoparticles (NPs) embedding treatment at room temperature. In which case, well-dispersed Pd NPs with the average diameter of ∼4 nm are embedded on NiCu nanosheets (BET surface area of 180.7 m2g−1). Pd-on-NiCu nanosheets exert remarkable high performance in electrocatalytic activity, methanol-tolerance and stability, the electrocatalytic mass activity of Pd-on-NiCu nanosheets is 1827 mAmg−1, which is over 6-fold higher than that of commercial Pd/C (289 mAmg−1), and the current density of the electrocatalyst decreases after 300 cycles of only 6%. Therefore, Pd-on-NiCu nanosheets can be considered as one of the most promising candidates for fuel cells applications.
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