Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Environmentally‐Friendly Exfoliate and Active Site Self‐Assembly: Thin 2D/2D Heterostructure Amorphous Nickel–Iron Alloy on 2D Materials for Efficient Oxygen Evolution Reaction
Small ( IF 13.0 ) Pub Date : 2019-04-02 , DOI: 10.1002/smll.201805435
Yuanzhe Wang 1 , Yanyan Zhou 1 , Minze Han 1 , Yaokai Xi 1 , Huanhuan You 1 , Xianfeng Hao 1 , Zhiping Li 1 , Junshuang Zhou 1 , Dandan Song 1 , Dong Wang 1 , Faming Gao 1
Small ( IF 13.0 ) Pub Date : 2019-04-02 , DOI: 10.1002/smll.201805435
Yuanzhe Wang 1 , Yanyan Zhou 1 , Minze Han 1 , Yaokai Xi 1 , Huanhuan You 1 , Xianfeng Hao 1 , Zhiping Li 1 , Junshuang Zhou 1 , Dandan Song 1 , Dong Wang 1 , Faming Gao 1
Affiliation
![]() |
A class of 2D layered materials exhibits substantial potential for high‐performance electrocatalysts due to high specific surface area, tunable electronic properties, and open 2D channels for fast ion transport. However, liquid‐phase exfoliation always utilizes organic solvents that are harmful to the environment, and the active sites are limited to edge sites. Here, an environmentally friendly exfoliator in aqueous solution is presented without utilizing any toxic or hazardous substance and active site self‐assembly on the inert base of 2D materials. Benefiting from thin 2D/2D heterostructure and strong interfacial coupling, the resultant highly disordered amorphous NiFe/2D materials (Ti3C2 MXene, graphene and MoS2) thin nanosheets exhibit extraordinary electrocatalytic performance toward oxygen evolution reaction (OER) in alkaline media. DFT results further verify the experimental results. The study emphasizes a viable idea to probe efficient electrocatalysts by means of the synergistic effect of environmentally friendly exfoliator in aqueous solution and active site self‐assembly on the inert base of 2D materials which forms the unique thin 2D/2D heterostructure in‐suit. This new type of heterostructure opens up a novel avenue for the rational design of highly efficient 2D materials for electrocatalysis.
中文翻译:
环保剥落和活性部位自组装:在2D材料上的薄2D / 2D异质结构非晶态镍-铁合金,可进行有效的放氧反应
一类2D层状材料由于具有高的比表面积,可调节的电子特性以及用于快速离子传输的开放2D通道,因此在高性能电催化剂中显示出巨大潜力。但是,液相剥落始终使用对环境有害的有机溶剂,并且活性部位仅限于边缘部位。此处介绍了一种环保型水溶液去角质剂,它没有在2D材料的惰性基础上利用任何有毒或有害物质以及活性部位自组装。得益于薄的2D / 2D异质结构和强大的界面耦合,所得的高度无序的非晶NiFe / 2D材料(Ti3C2 MXene,石墨烯和MoS 2纳米薄片对碱性介质中的氧释放反应(OER)表现出非凡的电催化性能。DFT结果进一步验证了实验结果。这项研究强调了一种可行的想法,即通过环境友好型去角质剂在水溶液中的协同作用和在2D材料惰性基底上的主动位点自组装的协同作用,探索有效的电催化剂,从而形成独特的薄2D / 2D异质结构。这种新型的异质结构为合理设计用于电催化的高效2D材料开辟了一条新途径。
更新日期:2019-04-02
中文翻译:
![](https://scdn.x-mol.com/jcss/images/paperTranslation.png)
环保剥落和活性部位自组装:在2D材料上的薄2D / 2D异质结构非晶态镍-铁合金,可进行有效的放氧反应
一类2D层状材料由于具有高的比表面积,可调节的电子特性以及用于快速离子传输的开放2D通道,因此在高性能电催化剂中显示出巨大潜力。但是,液相剥落始终使用对环境有害的有机溶剂,并且活性部位仅限于边缘部位。此处介绍了一种环保型水溶液去角质剂,它没有在2D材料的惰性基础上利用任何有毒或有害物质以及活性部位自组装。得益于薄的2D / 2D异质结构和强大的界面耦合,所得的高度无序的非晶NiFe / 2D材料(Ti3C2 MXene,石墨烯和MoS 2纳米薄片对碱性介质中的氧释放反应(OER)表现出非凡的电催化性能。DFT结果进一步验证了实验结果。这项研究强调了一种可行的想法,即通过环境友好型去角质剂在水溶液中的协同作用和在2D材料惰性基底上的主动位点自组装的协同作用,探索有效的电催化剂,从而形成独特的薄2D / 2D异质结构。这种新型的异质结构为合理设计用于电催化的高效2D材料开辟了一条新途径。