In situ coating of a continuous mesoporous bimetallic PtRu film on Ni foam: a nanoarchitectured self-standing all-metal mesoporous electrode
In situ coating of a continuous mesoporous bimetallic PtRu film on Ni foam: a nanoarchitectured self-standing all-metal mesoporous electrode
复制标题
泡沫镍上连续介孔双金属 PtRu 薄膜的原位涂覆：纳米结构自支撑全金属介孔电极
DOI：
10.1039/c8ta03413c
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发表时间：
2018
影响因子：
11.9
通讯作者：
Wang Liang
中科院分区：
文献类型：
--
作者：
Wang Hongjing;Yu Hongjie;Yin Shuli;Xu You;Li Xiaonian;Yamauchi Yusuke;Xue Hairong;Wang Liang
连续介孔pt基合金薄膜的制备对电化学能量转换具有重要意义。在此，我们提出了一种非常简单的浸泡方法来实现在大孔Ni泡沫（mptruu - nf）上原位制备连续介孔ptruu膜。由于其连续介孔结构和双金属组成，mptruf - nf在氧还原反应和析氧反应中均表现出较高的活性和耐久性。此外，mptrun - nf作为无粘结剂空气电极用于可充电锌空气电池（ZABs）时，表现出优异的电化学性能。与以往复杂的脱合金或基于模板的方法非常不同，该方法为在金属衬底上直接制备介孔金属薄膜提供了一种真正简单的方法。所提出的一步法很容易用于在金属衬底上按比例制造具有设计成分和期望性能的连续介孔pt基薄膜。
The fabrication of continuous mesoporous Pt-based alloy films is very important for electrochemical energy conversion. Herein, we propose an extremely simple soaking method for achieving in situ fabrication of a continuous mesoporous PtRu film on macroporous Ni foam (mPtRu–NF). Owing to its continuous mesoporous structure and bi-metallic compositions, the mPtRu–NF exhibits high activity and durability for both the oxygen reduction reaction and oxygen evolution reaction. Furthermore, when the mPtRu–NF was used as a binder-free air electrode for rechargeable Zn–air batteries (ZABs), it shows superior electrochemical performance. Being very different from previous complex de-alloying or template-based approaches, this method provides a truly simple way for achieving direct fabrication of mesoporous metallic films on metallic substrates. The proposed one-step method is readily available for scale-up fabrication of continuous mesoporous Pt-based films on metallic substrates with designed compositions and desired performances.