Targeted Regulation of the Electronic States of Nickel Toward the Efficient Electrosynthesis of Benzonitrile and Hydrogen Production.
Targeted Regulation of the Electronic States of Nickel Toward the Efficient Electrosynthesis of Benzonitrile and Hydrogen Production.
复制标题
有针对性地调节镍的电子态以实现苯甲腈的高效电合成和氢气生产。
DOI:
10.1021/acsami.1c16048
复制
发表时间:
2021-11
期刊:
影响因子:
--
通讯作者:
Huang Baibiao
中科院分区:
文献类型:
--
作者:
Ma Fahao;Wang Shuhua;Han Liuyuan;Guo Yuhao;Wang Zeyan;Wang Peng;Liu Yuanyuan;Cheng Hefeng;Dai Ying;Zheng Zhaoke;Huang Baibiao
Highly efficient electro-oxidation of benzylamine to generate value-added chemicals coupled with the hydrogen evolution reaction (HER) is crucial but challenging. Herein, targeted regulation of the electronic states of Ni sites was realized via simple yet precise nitridation engineering. Benefiting from the insertion of N atoms into the Ni lattice, the Ni3N electrode exhibits superior activity, selectivity, and stability for the benzylamine oxidation reaction (BOR). Especially, under the industrially relevant current (∼250 mA), the Ni3N catalyst remains ∼95% selective for benzonitrile production, reaching 1.43 mmol h-1 cm-2. Experimental and theoretical findings reveal that the formation of Ni-N bonds upshifts the Ni d-band center and optimizes the electrophilic properties of Ni sites, which contributes to the adsorption and dehydrogenations process of benzylamine. Furthermore, due to the work function difference between Ni and Ni3N, a strong mutual interaction occurs at the heterogeneous interface for Ni-Ni3N, which endows it with the appropriate H* adsorption energy and thus excellent HER performance. Impressively, the integrated solar-energy-driven BOR coupled with the HER electrolyzer affords 10 mA cm-2 at an ultralow voltage of 1.4 V and exhibits a promising practical application (ηsolar-to-hydrogen = 13.8%). This work offers a new perspective for the bifunctional design of nitrides in the field of electrosynthesis.
登录
查看更多内容
影响因子:
3
作者:
Grimme, Stefan
通讯作者:
Grimme, Stefan
影响因子:
4.6
作者:
Ma, Fahao;Liang, Yan;Huang, Baibiao
通讯作者:
Huang, Baibiao
DOI:
10.1002/anie.202101539
发表时间:
2021
期刊:
Angew. Chem. Int. Ed.
影响因子:
--
作者:
Jiawei Zhu;Yao Guo;Fang Liu;Hanwen Xu;Lei Gong;Wenjie Shi;Ding Chen;Pengyan Wang;Yue Yang;Chengtian Zhang;Jinsong Wu;Jiahuan Luo;Shichun Mu
通讯作者:
Shichun Mu
影响因子:
17.6
作者:
Wang Honglei;Wang Yuchao;Zhang Jiangwei;Liu Xin;Tao Shengyang
通讯作者:
Tao Shengyang
DOI:
10.1002/cey2.85
发表时间:
2020-10
期刊:
--
影响因子:
--
作者:
Wei Song;Meixuan Li;Ce Wang;Xiaofeng Lu
通讯作者:
Wei Song;Meixuan Li;Ce Wang;Xiaofeng Lu