Spatially-controlled NiCo2O4@MnO2 core–shell nanoarray with hollow NiCo2O4 cores and MnO2 flake shells: an efficient catalyst for oxygen evolution reaction
Spatially-controlled NiCo2O4@MnO2 core–shell nanoarray with hollow NiCo2O4 cores and MnO2 flake shells: an efficient catalyst for oxygen evolution reaction
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DOI：
10.1088/1361-6528/aac051
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发表时间：
2018-05
期刊：
影响因子：
3.5
通讯作者：
Hairong Xue;Hongjie Yu;Yinghao Li;Kai Deng;You Xu;Xiaonian Li;Hongjing Wang;Liang Wang
中科院分区：
文献类型：
--
作者：
Hairong Xue;Hongjie Yu;Yinghao Li;Kai Deng;You Xu;Xiaonian Li;Hongjing Wang;Liang Wang
控制纳米阵列催化剂的结构和组成对于电化学能量转换是非常重要的。在此，独特的NiCo2O4@MnO2核-壳纳米阵列与空心NiCo 2 O 4核和MnO 2片状壳是通过两步水热处理，随后退火原位制备在碳纺织品上。由于NiCo_2O_4和MnO_2的空间分离，使得纳米阵列具有良好的协同效应，因此在碱性介质中具有高活性和高稳定性的析氧反应催化剂。
Control of structures and components of the nanoarray catalysts is very important for electrochemical energy conversion. Herein, unique NiCo2O4@MnO2 core–shell nanoarray with hollow NiCo2O4 Cores and MnO2 flake shells is in situ fabricated on carbon textile via a two-step hydrothermal treatment followed by a subsequent annealing. The as-made nanoarray is highly active and durable catalyst for oxygen evolution reaction in alkaline media attribute to the synergetic effect derived from spatially separated nanoarray with favorable NiCo2O4 and MnO2 compositions.