Single-atom catalyst of platinum supported on titanium nitride for selective electrochemical reactions

Sungeun Yang, Jiwhan Kim, Young Joo Tak, Aloysius Soon, Hyunjoo Lee

Research output: Contribution to journalArticle

224 Citations (Scopus)

Abstract

As a catalyst, single-atom platinum may provide an ideal structure for platinum minimization. Herein, a single-atom catalyst of platinum supported on titanium nitride nanoparticles were successfully prepared with the aid of chlorine ligands. Unlike platinum nanoparticles, the single-atom active sites predominantly produced hydrogen peroxide in the electrochemical oxygen reduction with the highest mass activity reported so far. The electrocatalytic oxidation of small organic molecules, such as formic acid and methanol, also exhibited unique selectivity on the single-atom platinum catalyst. A lack of platinum ensemble sites changed the reaction pathway for the oxygen-reduction reaction toward a two-electron pathway and formic acid oxidation toward direct dehydrogenation, and also induced no activity for the methanol oxidation. This work demonstrates that single-atom platinum can be an efficient electrocatalyst with high mass activity and unique selectivity.

Original languageEnglish
Pages (from-to)2058-2062
Number of pages5
JournalAngewandte Chemie - International Edition
Volume55
Issue number6
DOIs
Publication statusPublished - 2016 Feb 5

Fingerprint

Titanium nitride
Platinum
formic acid
Atoms
Catalysts
Catalyst selectivity
Formic acid
Oxidation
Methanol
Thermodynamic properties
Oxygen
Nanoparticles
Electrocatalysts
Chlorine
Dehydrogenation
titanium nitride
Hydrogen peroxide
Hydrogen Peroxide
Catalyst activity
Ligands

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

Cite this

Yang, Sungeun ; Kim, Jiwhan ; Tak, Young Joo ; Soon, Aloysius ; Lee, Hyunjoo. / Single-atom catalyst of platinum supported on titanium nitride for selective electrochemical reactions. In: Angewandte Chemie - International Edition. 2016 ; Vol. 55, No. 6. pp. 2058-2062.
@article{6c59fec982994bedba4eb3b0474dc434,
title = "Single-atom catalyst of platinum supported on titanium nitride for selective electrochemical reactions",
abstract = "As a catalyst, single-atom platinum may provide an ideal structure for platinum minimization. Herein, a single-atom catalyst of platinum supported on titanium nitride nanoparticles were successfully prepared with the aid of chlorine ligands. Unlike platinum nanoparticles, the single-atom active sites predominantly produced hydrogen peroxide in the electrochemical oxygen reduction with the highest mass activity reported so far. The electrocatalytic oxidation of small organic molecules, such as formic acid and methanol, also exhibited unique selectivity on the single-atom platinum catalyst. A lack of platinum ensemble sites changed the reaction pathway for the oxygen-reduction reaction toward a two-electron pathway and formic acid oxidation toward direct dehydrogenation, and also induced no activity for the methanol oxidation. This work demonstrates that single-atom platinum can be an efficient electrocatalyst with high mass activity and unique selectivity.",
author = "Sungeun Yang and Jiwhan Kim and Tak, {Young Joo} and Aloysius Soon and Hyunjoo Lee",
year = "2016",
month = "2",
day = "5",
doi = "10.1002/anie.201509241",
language = "English",
volume = "55",
pages = "2058--2062",
journal = "Angewandte Chemie - International Edition",
issn = "1433-7851",
publisher = "John Wiley and Sons Ltd",
number = "6",

}

Single-atom catalyst of platinum supported on titanium nitride for selective electrochemical reactions. / Yang, Sungeun; Kim, Jiwhan; Tak, Young Joo; Soon, Aloysius; Lee, Hyunjoo.

In: Angewandte Chemie - International Edition, Vol. 55, No. 6, 05.02.2016, p. 2058-2062.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Single-atom catalyst of platinum supported on titanium nitride for selective electrochemical reactions

AU - Yang, Sungeun

AU - Kim, Jiwhan

AU - Tak, Young Joo

AU - Soon, Aloysius

AU - Lee, Hyunjoo

PY - 2016/2/5

Y1 - 2016/2/5

N2 - As a catalyst, single-atom platinum may provide an ideal structure for platinum minimization. Herein, a single-atom catalyst of platinum supported on titanium nitride nanoparticles were successfully prepared with the aid of chlorine ligands. Unlike platinum nanoparticles, the single-atom active sites predominantly produced hydrogen peroxide in the electrochemical oxygen reduction with the highest mass activity reported so far. The electrocatalytic oxidation of small organic molecules, such as formic acid and methanol, also exhibited unique selectivity on the single-atom platinum catalyst. A lack of platinum ensemble sites changed the reaction pathway for the oxygen-reduction reaction toward a two-electron pathway and formic acid oxidation toward direct dehydrogenation, and also induced no activity for the methanol oxidation. This work demonstrates that single-atom platinum can be an efficient electrocatalyst with high mass activity and unique selectivity.

AB - As a catalyst, single-atom platinum may provide an ideal structure for platinum minimization. Herein, a single-atom catalyst of platinum supported on titanium nitride nanoparticles were successfully prepared with the aid of chlorine ligands. Unlike platinum nanoparticles, the single-atom active sites predominantly produced hydrogen peroxide in the electrochemical oxygen reduction with the highest mass activity reported so far. The electrocatalytic oxidation of small organic molecules, such as formic acid and methanol, also exhibited unique selectivity on the single-atom platinum catalyst. A lack of platinum ensemble sites changed the reaction pathway for the oxygen-reduction reaction toward a two-electron pathway and formic acid oxidation toward direct dehydrogenation, and also induced no activity for the methanol oxidation. This work demonstrates that single-atom platinum can be an efficient electrocatalyst with high mass activity and unique selectivity.

UR - http://www.scopus.com/inward/record.url?scp=84957850680&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84957850680&partnerID=8YFLogxK

U2 - 10.1002/anie.201509241

DO - 10.1002/anie.201509241

M3 - Article

AN - SCOPUS:84957850680

VL - 55

SP - 2058

EP - 2062

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

SN - 1433-7851

IS - 6

ER -