Related Experiment Video
Updated: Jun 2, 2026

Hydrogen Production and Utilization in a Membrane Reactor
Published on: March 10, 2023
Simultaneous Formation of a Tensile-Strained PtNiBi Shell/Intermetallic PtBi Core for Self-Powered Methanol Upgrading
Shuiping Luo1, Zongming Liu1, Lei Xie1
1Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Guangdong Provincial Key Laboratory of New Energy Materials Service Safety, College of Materials Science and Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China.
Abstract:
Methanol oxidation is vital for direct methanol fuel cells (DMFCs) and energy-saving H2 production by replacing the sluggish oxygen evolution reaction, but it suffers from CO poisoning, CO2 emission, and high overpotential issues. Herein, we present the simultaneous formation of a monodispersed intermetallic PtBi core/tensile-strained PtNiBi shell (I-PtBi@TS-PtNiBi) via a one-pot wet chemical method, to facilitate a self-powered methanol upgrading and H2 production system without CO2 emission. This I-PtBi@TS-PtNiBi electrocatalyst exhibits a high mass activity of 33.2 A mg-1 Pt toward methanol oxidation and produces value-added formate with high Faradaic efficiencies over a wide potential window of 0.6 to 1.2 V. This enables a high DMFC peak power density of 175.0 mW cm-2 to drive efficient H2 production in an anion-exchange-membrane water electrolyzer at low cell voltages (1.16 V@2.0 A cm-2), producing formate in both the DMFC and electrolyzer. This work offers insights into the rational design and synthesis of sophisticated multimetallic electrocatalysts for efficient energy conversion and chemical upgraders.
More Related Videos
08:40Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
06:32A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions
Published on: August 17, 2016
Related Concept Videos
Olefin Metathesis Polymerization: Overview
Ruthenium-based Grubbs catalyst is the most commonly used catalyst for olefin metathesis polymerization. Grubbs catalyst consists of a...
Heterogeneous Catalysis
Formation of Halohydrin from Alkenes