Electrochemical de-alloying synthesis of porous AuTiCeOx/NC cyclohexene hydrogenation SPE membrane electrode by combination method

High-performance hydrogenation catalysts are crucial for integrating hydrogen production and storage in organic/water systems, as well as for CO 2 electrocatalytic reduction reactions. In this study, ion beam sputtering, coupled electrochemical de-alloying, and hot pressing have been employed to fab...

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Bibliographic Details
Published in:Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology 2024-05, Vol.26 (5), p.82, Article 82
Main Authors: Shang, Yueming, Feng, Yunhao, Duan, Liangming, Li, Xudong, Fan, Huaihang, Wang, Shaqin, Zhuang, Xinying, Yang, Bin
Format: Article
Language:English
Subjects:
Alloying elements
Carbon dioxide
Carbon nitride
Catalysts
Cerium oxides
Characterization and Evaluation of Materials
Chemical reduction
Chemistry and Materials Science
Current efficiency
Cyclohexane
Cyclohexene
Electrochemistry
Electrodes
Grain boundaries
Hexagonal phase
Hot pressing
Hydrogen production
Hydrogenation
Inorganic Chemistry
Ion beam sputtering
Lasers
Materials Science
Membranes
Nanotechnology
Optical Devices
Optics
Phase composition
Photonics
Physical Chemistry
Pore size
Pore size distribution
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Summary:High-performance hydrogenation catalysts are crucial for integrating hydrogen production and storage in organic/water systems, as well as for CO 2 electrocatalytic reduction reactions. In this study, ion beam sputtering, coupled electrochemical de-alloying, and hot pressing have been employed to fabricate an SPE membrane electrode containing porous AuTiCeO x /NC. Characterization techniques were utilized to analyze and discuss the phase composition, surface morphology, components, exposed crystal faces, and their relationship with the catalytic efficiency and reaction stability of the Au-based SPE membrane electrode during the hydrogenation of cyclohexene. The results revealed that the membrane electrode carrier is composed of hexagonal phase C 3 N 4 , the Au-based catalyst possesses tetragonal Au 2 Ti and face-centered cubic Au phases, and Ce exists as amorphous ceria at the grain boundary; electrochemical de-alloying treatment yielded uniform elemental distribution and mesopores with an average pore size of 
ISSN:1388-0764
1572-896X
DOI:10.1007/s11051-024-05995-4