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- Title
Radiolysis-Assisted Direct Growth of Gold-Based Electrocatalysts for Glycerol Oxidation.
- Authors
Tuleushova, Nazym; Amanova, Aisara; Abdellah, Ibrahim; Benoit, Mireille; Remita, Hynd; Cornu, David; Holade, Yaovi; Tingry, Sophie
- Abstract
The electrocatalytic oxidation of glycerol by metal electrocatalysts is an effective method of low-energy-input hydrogen production in membrane reactors in alkaline conditions. The aim of the present study is to examine the proof of concept for the gamma-radiolysis-assisted direct growth of monometallic gold and bimetallic gold–silver nanostructured particles. We revised the gamma radiolysis procedure to generate free-standing Au and Au-Ag nano- and micro-structured particles onto a gas diffusion electrode by the immersion of the substrate in the reaction mixture. The metal particles were synthesized by radiolysis on a flat carbon paper in the presence of capping agents. We have integrated different methods (SEM, EDX, XPS, XRD, ICP-OES, CV, and EIS) to examine in detail the as-synthesized materials and interrogate their electrocatalytic efficiency for glycerol oxidation under baseline conditions to establish a structure–performance relationship. The developed strategy can be easily extended to the synthesis by radiolysis of other types of ready-to-use metal electrocatalysts as advanced electrode materials for heterogeneous catalysis.
- Subjects
ELECTROCATALYSTS; HETEROGENEOUS catalysis; CARBON paper; MEMBRANE reactors; RADIOLYSIS; GLYCERIN
- Publication
Nanomaterials (2079-4991), 2023, Vol 13, Issue 11, p1713
- ISSN
2079-4991
- Publication type
Article
- DOI
10.3390/nano13111713