Enhanced Activity Promoted by Metal Support Interaction of Pt/TiC Electrocatalyst for Ammonia Oxidation Reaction
Source abstract
Abstract
Abstract The efficiency of electrocatalysis for ammonia oxidation reaction (AOR) using platinum catalysts is hindered primarily by slow kinetic rates, attributed to the robust adsorption of nitrogen (*N) and oxygen (*OH) intermediates. To overcome these challenges, a strategy involving the subtle weakening of the adsorption strength of either *N products or *OH intermediates is essential for enhancing the AOR activity. Herein, the enhanced catalytic performance of Pt/TiC electrocatalysts in the AOR is explored. Through the X‐ray photoelectron spectroscopy (XPS), it is confirmed that local charge transfer and d‐band shifts, induced by the interaction between Pt and TiC, weaken the adsorption strength of *N and *OH adsorbates, leading to a 1.5‐fold increase in AOR activity of optimized Pt/TiC compared to pristine Pt.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Ammonia Synthesis and Nitrogen Reduction · Electrocatalysts for Energy Conversion · Advanced Photocatalysis Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Materials Science and Engineering (MSE) Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
Funding
National Research Foundation of Korea
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