Selective electrochemical reduction of nitrogen oxides by covalent triazine frameworks modified with single Pt atoms

被引：27
作者：
Kamai, Ryo [1 ,2 ]
Nakanishi, Shuji [3 ]
Hashimoto, Kazuhito [4 ]
Kamiya, Kazuhide [3 ,5 ]
机构：
[1] Univ Tokyo, Dept Adv Interdisciplinary Studies, Meguro Ku, 4-6-1 Komaba, Tokyo 1538904, Japan
[2] Panasonic Corp, Adv Technol Dev Ctr, Eco Solut Co, 1048 Kadoma, Kadoma, Osaka 5718686, Japan
[3] Osaka Univ, Res Ctr Solar Energy Chem, 1-3 Machikaneyama, Toyonaka, Osaka 5608531, Japan
[4] Natl Inst Mat Sci, 1-2-1 Sengen, Tsukuba, Ibaraki 3050047, Japan
[5] Japan Sci & Technol Agcy JST PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 3320012, Japan
来源：
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2017年 / 800卷
基金：
日本科学技术振兴机构;
关键词：
Single atom catalyst; Platinum; Voltammetry; Electrocatalysis; Nitrate reduction; PERCHLORIC-ACID SOLUTION; ELECTROCATALYTIC REDUCTION; NITRIC-OXIDE; PLATINUM-ELECTRODE; OXYGEN REDUCTION; ADSORBED NITRATE; CO OXIDATION; NO; CATALYST; SURFACE;
D O I：
10.1016/j.jelechem.2016.09.027
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The present work demonstrates that a single platinum atom-modified covalent triazine framework hybridized with carbon nanoparticle (Pt-CTF/CP) exhibited selective activity for the electrochemical reduction of nitrogen oxides. Pt-CTF/CP had low nitrate reduction activity, but efficiently catalyzed the reduction of nitric oxide (NO) molecules derived from the decomposition of nitrite. In contrast, a bulk Pt surface exhibited high activity for both reactions. The selectivity of Pt-CTF/CP for NO is likely due to the unique adsorption behavior of hydrogen atoms and/or nitrate ions on the single Pt atoms. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：54 / 59
页数：6
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