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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
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.
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页码:54 / 59
页数:6
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