Plasma-etched Ti2O3 with oxygen vacancies for enhanced NH3 electrosynthesis and Zn-N2 batteries

被引：126

作者：

Chen, Hai-jun ^{[1
,2
]}

Xu, Zhao-quan ^{[2
]}

Sun, Shengjun ^{[3
]}

Luo, Yongsong ^{[3
]}

Liu, Qian ^{[1
]}

Hamdy, Mohamed S. ^{[4
]}

Feng, Zhe-sheng ^{[2
]}

Sun, Xuping ^{[3
,5
]}

Wang, Yan ^{[2
]}

机构：

[1] Chengdu Univ, Inst Adv Study, Chengdu 610106, Sichuan, Peoples R China

[2] Univ Elect Sci & Technol China, Sch Mat & Energy, Chengdu 611731, Sichuan, Peoples R China

[3] Univ Elect Sci & Technol China, Inst Fundamental & Frontier Sci, Chengdu 610054, Sichuan, Peoples R China

[4] King Khalid Univ, Coll Sci, Dept Chem, Catalysis Res Grp CRG, POB 9004, Abha, Saudi Arabia

[5] Shandong Normal Univ, Coll Chem Chem Engn & Mat Sci, Jinan 250014, Shandong, Peoples R China

来源：

INORGANIC CHEMISTRY FRONTIERS | 2022年 / 9卷 / 18期

基金：

中国国家自然科学基金;

关键词：

EFFICIENT;

D O I：

10.1039/d2qi01173e

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The sustainable production of NH3 through an ambient electrocatalytic N-2 reduction reaction (NRR) requires the ingenious design of efficient electrocatalysts. Herein, plasma-etched Ti2O3 with oxygen vacancies (OV-Ti2O3) is reported as an active and stable electrocatalyst for NRR. The resulting OV-Ti2O3 catalyst exhibits outstanding N-2 fixation performances in 0.1 M HCl with the maximum NH3 yield and faradaic efficiency of up to 37.24 mu g h(-1) mg(cat.)(-1) and 19.29%, respectively. Additionally, a rechargeable aqueous Zn-N-2 battery with an OV-Ti2O3 cathode was assembled to deliver a power density of 1.02 mW cm(-2) and an NH3 yield of 4.3 mu g h(-1) mg(cat.)(-1), outperforming reported Zn-N-2 batteries.

引用

页码：4608 / 4613

页数：6

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