催化作用
材料科学
化学工程
溶剂化
沉积(地质)
纳米技术
锂(药物)
储能
吸附
化学
物理化学
溶剂
热力学
有机化学
物理
古生物学
功率(物理)
医学
沉积物
内分泌学
工程类
生物
作者
Anjun Hu,Weiqiang Lv,Tianyu Lei,Wei Chen,Yin Hu,Chaozhu Shu,Xianfu Wang,Lanxin Xue,Jianwen Huang,Xuesen Du,Hongbo Wang,Kai Tang,Cheng Gong,Jing Zhu,Weidong He,Jianping Long,Jie Xiong
出处
期刊:ACS Nano
[American Chemical Society]
日期:2020-02-26
卷期号:14 (3): 3490-3499
被引量:113
标识
DOI:10.1021/acsnano.9b09646
摘要
The aprotic lithium–oxygen (Li–O2) battery has triggered tremendous efforts for advanced energy storage due to the high energy density. However, realizing toroid-like Li2O2 deposition in low-donor-number (DN) solvents is still the intractable obstruction. Herein, a heterostructured NiS2/ZnIn2S4 is elaborately developed and investigated as a promising catalyst to regulate the Li2O2 deposition in low-DN solvents. The as-developed NiS2/ZnIn2S4 promotes interfacial electron transfer, regulates the adsorption energy of the reaction intermediates, and accelerates O–O bond cleavage, which are convincingly evidenced experimentally and theoretically. As a result, the toroid-like Li2O2 product is achieved in a Li–O2 battery with low-DN solvents via the solvation-mediated pathway, which demonstrates superb cyclability over 490 cycles and a high output capacity of 3682 mA h g–1. The interface engineering of heterostructure catalysts offers more possibilities for the realization of toroid-like Li2O2 in low-DN solvents, holding great promise in achieving practical applications of Li–O2 batteries as well as enlightening the material design in catalytic systems.
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