Issue

Vol. 15 (2023)

Shape-Controlled Synthesis of Platinum-Based Nanocrystals and Their Electrocatalytic Applications in Fuel Cells

https://doi.org/10.1007/s40820-023-01060-2
Can Li
Department of Chemistry, State University of New York at Binghamton, Binghamton, NY, USA
N. Clament Sagaya Selvam
Department of Chemistry, State University of New York at Binghamton, Binghamton, NY, USA
Jiye Fang
Department of Chemistry, State University of New York at Binghamton, Binghamton, NY, USA

Corresponding Author: Jiye Fang

jfang@binghamton.edu

Nano-Micro Letters, Vol. 15 (2023), Article Number: 83

Abstract

To achieve environmentally benign energy conversion with the carbon neutrality target via electrochemical reactions, the innovation of electrocatalysts plays a vital role in the enablement of renewable resources. Nowadays, Pt-based nanocrystals (NCs) have been identified as one class of the most promising candidates to efficiently catalyze both the half-reactions in hydrogen- and hydrocarbon-based fuel cells. Here, we thoroughly discuss the key achievement in developing shape-controlled Pt and Pt-based NCs, and their electrochemical applications in fuel cells. We begin with a mechanistic discussion on how the morphology can be precisely controlled in a colloidal system, followed by highlighting the advanced development of shape-controlled Pt, Pt-alloy, Pt-based core@shell NCs, Pt-based nanocages, and Pt-based intermetallic compounds. We then select some case studies on models of typical reactions (oxygen reduction reaction at the cathode and small molecular oxidation reaction at the anode) that are enhanced by the shape-controlled Pt-based nanocatalysts. Finally, we provide an outlook on the potential challenges of shape-controlled nanocatalysts and envision their perspective with suggestions.


Highlights:


1 Synthetic mechanisms of shape-controlled Pt-based alloy and intermetallic nanocrystals are outlined, and strategies for the design and development of morphology-controlled Pt-based nanostructures are discussed.
2 Advanced characterizations and electrochemical applications of these Pt-based nanocatalysts are highlighted.
3 Advances and perspectives in designing outperformance and the long-durability of Pt-based nanocatalysts with shape control in this electrochemical field are proposed.

Keywords

Shape-control Colloidal synthesis Pt-based nanocrystals Electrochemical catalysis
Li, Can, N. Clament Sagaya Selvam, and Jiye Fang. 2023. “Shape-Controlled Synthesis of Platinum-Based Nanocrystals and Their Electrocatalytic Applications in Fuel Cells”. Nano-Micro Letters 15 (March):83. https://doi.org/10.1007/s40820-023-01060-2.
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