Single‐Atom Catalyst of Platinum Supported on Titanium Nitride for Selective Electrochemical Reactions
- 28 December 2015
- journal article
- research article
- Published by Wiley in Angewandte Chemie-International Edition
- Vol. 55 (6), 2058-2062
- https://doi.org/10.1002/anie.201509241
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.Funding Information
- Ministry of Education, Science and Technology
This publication has 40 references indexed in Scilit:
- FeOx-supported platinum single-atom and pseudo-single-atom catalysts for chemoselective hydrogenation of functionalized nitroarenesNature Communications, 2014
- A Single‐Site Platinum CO Oxidation Catalyst in Zeolite KLTL: Microscopic and Spectroscopic Determination of the Locations of the Platinum AtomsAngewandte Chemie, 2014
- A Single‐Site Platinum CO Oxidation Catalyst in Zeolite KLTL: Microscopic and Spectroscopic Determination of the Locations of the Platinum AtomsAngewandte Chemie, 2014
- Single-atom catalysis of CO oxidation using Pt1/FeOxNature Chemistry, 2011
- Platinum dendrites with controlled sizes for oxygen reduction reactionElectrochemistry Communications, 2010
- Colloid Science of Metal Nanoparticle Catalysts in 2D and 3D Structures. Challenges of Nucleation, Growth, Composition, Particle Shape, Size Control and Their Influence on Activity and SelectivityTopics in Catalysis, 2008
- Ru–Pt core–shell nanoparticles for preferential oxidation of carbon monoxide in hydrogenNature Materials, 2008
- Platinum Nanoparticle Shape Effects on Benzene Hydrogenation SelectivityNano Letters, 2007
- Engineering Pt in Ceria for a Maximum Metal−Support Interaction in CatalysisJournal of the American Chemical Society, 2005
- Structure and catalytic combustion activity of atomically dispersed Pt species at MgO surfaceApplied Catalysis A: General, 1999