纳米片
电催化剂
催化作用
化学
法拉第效率
电化学
化学工程
水热合成
热液循环
可逆氢电极
纳米技术
选择性
材料科学
纳米颗粒
无机化学
电极
工作电极
有机化学
工程类
物理化学
作者
Jie Zhang,Lin Yang,Huanbo Wang,Guilei Zhu,Hao Wen,Feng Hao,Xun Sun,Xin Guan,Jiqiu Wen,Yadong Yao
出处
期刊:Inorganic Chemistry
[American Chemical Society]
日期:2019-04-15
卷期号:58 (9): 5414-5418
被引量:78
标识
DOI:10.1021/acs.inorgchem.9b00606
摘要
The traditional power-wasting Haber–Bosch process still dominates industrial NH3 production. Recent years witnessed the rapid development of an electrochemical N2 reduction reaction (NRR) because of its environmentally benign and sustainable feature. Here, we demonstrate the first utilization of a Ti3C2Tx MXene nanosheet as both the precursor and conductive substrate toward the in situ hydrothermal growth of TiO2 nanoparticles. The marriage of TiO2 and Ti3C2Tx leads to a synergistically active Ti-based nanohybrid catalyst that can strengthen N2 reduction electrocatalysis. When tested in 0.1 M HCl, such a TiO2/Ti3C2Tx hybrid is superior in catalytic performance, capable of affording a NH3 yield of 26.32 μg h–1 mg–1cat. with a 8.42% Faradaic efficiency (FE) at −0.60 V versus reversible hydrogen electrode (RHE), larger than those for TiO2 and Ti3C2Tx. Notably, this nanohybrid also shows good NH3 selectivity with high electrochemical durability.
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