Pt/TiSix-NCNT Novel Janus Nanostructure: A New Type of High-Performance Electrocatalyst
Source abstract
Abstract
Novel Janus nanostructured electrocatalyst (Pt/TiSix-NCNT) was prepared by first sputtering TiSix on one side of N-doped carbon nanotubes (NCNTs), followed by wet chemical deposition of Pt nanoparticles (NPs) on the other side. Transmission electron microscopy (TEM) studies showed that the Pt NPs are mainly deposited on the NCNT surface where no TiSix (i.e., between the gaps of TiSix film). This feature could benefit the increase in the stability of the Pt NP catalyst. Indeed, compared to the state-of-the-art commercial Pt/C catalyst, this novel Pt/TiSix-NCNT Janus structure showed ∼3 times increase in stability as well as significantly improved CO tolerance. The obvious performance enhancement could be attributed to the better corrosion resistance of TiSix and NCNTs than the carbon black that is used in the commercial Pt/C catalyst. Pt/TiSix-NCNT Janus nanostructures open the door for designing new type of high-performance electrocatalyst for fuel cells and other oxygen reduction reaction-related energy devices.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electrocatalysts for Energy Conversion · Fuel Cells and Related Materials · Advanced battery technologies research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
Institut National de la Recherche Scientifique-Énergie Matériaux et Télécommunications, Varennes, QC J3X 1S2, Canada
General Motors Research and Development Center, Warren, Michigan 48090-9055, United States
Funding
Western University · Fonds de Recherche du Qu?bec - Nature et Technologies · Natural Sciences and Engineering Research Council of Canada · General Motors of Canada · Institut national de la recherche scientifique, Universit? du Qu?bec
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