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Title: Transition-Metal Nitride Core@Noble-Metal Shell Nanoparticles as Highly CO Tolerant Catalysts

Journal Article · · Angewandte Chemie (International Edition)
ORCiD logo [1];  [1];  [2];  [3];  [1];  [2]; ORCiD logo [1]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  2. Univ. of Wisconsin-Madison, Madison, WI (United States)
  3. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Univ. of Campinas, Campinas, SP (Brazil)

Abstract Core–shell architectures offer an effective way to tune and enhance the properties of noble‐metal catalysts. Herein, we demonstrate the synthesis of Pt shell on titanium tungsten nitride core nanoparticles (Pt/TiWN) by high temperature ammonia nitridation of a parent core–shell carbide material (Pt/TiWC). X‐ray photoelectron spectroscopy revealed significant core‐level shifts for Pt shells supported on TiWN cores, corresponding to increased stabilization of the Pt valence d‐states. The modulation of the electronic structure of the Pt shell by the nitride core translated into enhanced CO tolerance during hydrogen electrooxidation in the presence of CO. The ability to control shell coverage and vary the heterometallic composition of the shell and nitride core opens up attractive opportunities to synthesize a broad range of new materials with tunable catalytic properties.

Research Organization:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Contributing Organization:
University of Wisconsin Materials Research Science and Engineering Center; Advanced Photon Source at Argonne National Laboratory; and the Brazilian Synchrotron Light Laboratory
Grant/Contract Number:
SC0016214
OSTI ID:
1434317
Alternate ID(s):
OSTI ID: 1401805
Journal Information:
Angewandte Chemie (International Edition), Vol. 56, Issue 30; ISSN 1433-7851
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 74 works
Citation information provided by
Web of Science

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  • Molinari, Valerio; Giordano, Cristina; Antonietti, Markus
  • Journal of the American Chemical Society, Vol. 136, Issue 5, p. 1758-1761 https://doi.org/10.1021/ja4119412
journal January 2014
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High‐Performance Ultrathin Co 3 O 4 Nanosheet Supported PdO/CeO 2 Catalysts for Methane Combustion journal March 2019
Core–Shell-Structured Low-Platinum Electrocatalysts for Fuel Cell Applications journal July 2018
Tuning core–shell interactions in tungsten carbide–Pt nanoparticles for the hydrogen evolution reaction journal January 2018
Recent progress in Pt and Pd-based hybrid nanocatalysts for methanol electrooxidation journal January 2019
Synthesis of TiO 2 @α-Fe 2 O 3 core–shell heteronanostructures by thermal decomposition approach and their application towards sunlight-driven photodegradation of rhodamine B journal January 2018
Growth of 2 cm metallic porous TiN single crystals journal January 2018
Eye-Readable Detection and Oxidation of CO with a Platinum-Based Catalyst and a Binuclear Rhodium Complex journal July 2019
Trimetallic PtPdCo mesoporous nanopolyhedra with hollow cavities journal January 2019
Engineering stable electrocatalysts by synergistic stabilization between carbide cores and Pt shells journal December 2019
A high-performance CeO 2 @Pt-Beta yolk-shell catalyst used in low-temperature ethanol steam reforming for high-purity hydrogen production journal March 2019
Highly Durable and Active Pt-Based Nanoscale Design for Fuel-Cell Oxygen-Reduction Electrocatalysts journal January 2018
Mechanochemical-Assisted Synthesis of High-Entropy Metal Nitride via a Soft Urea Strategy journal April 2018
Eye‐Readable Detection and Oxidation of CO with a Platinum‐Based Catalyst and a Binuclear Rhodium Complex journal July 2019