Electrocatalytic Butadiene Selective Hydrogenation over Platinum Dendrite Surfaces on Ti mesh

doi:10.7503/cjcu20250342

Chem. J. Chinese Universities

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Electrocatalytic Butadiene Selective Hydrogenation over Platinum Dendrite Surfaces on Ti mesh

GUAN Zelong¹，LI Zidan¹, LUO Haowen¹, WANG Wanyi², HUANG Chuanfeng², SU Baolian^1,3, WANG Zhao¹

1. Wuhan University of Technology, State Key Laboratory of Advanced Technology for Materials, Synthesis and Processing
2. Wuhan University of Technology, School of Chemistry 3. Laboratory of Inorganic Materials Chemistry(CMI), University of Namur

Received:2025-11-07 Revised:2025-12-10 Online First:2025-12-16 Published:2025-12-16
Contact: Zhao Wang E-mail:zhao.wang@whut.edu.cn
Supported by:
Supported by the National Natural Science Foundation of China(No. 22293022) and the “Wuhan Yingcai” Program, China(No. 202501jc0252)

Abstract

Abstract: In this study, titanium mesh supported dendritic platinum (Pt) branch catalyst (Ptx/Ti ) was synthesized by an in situ electrodeposition method for the efficient butadiene selective hydrogenation, which is driven by electricity with water as the source of intermediate hydrogen [H]. It shows that the Pt/Ti with 1200s of electrodeposition (Pt1200s/Ti) has a superior performance at a current density of -6.25 mA·cm-2, reaching a butadiene conversion rate of 73 % and a target product Faraday efficiency exceeding 75 % after 8 hours of time on stream. Further analysis reveals that, at current density below 6.25 mA·cm-2, butadiene preferentially adsorbs and reacts with the [H] to form butene with high selectivity; With an increase of current density to 6.25 ~ 10 mA·cm-2, the excessive [H] drives the reaction toward over-hydrogenation of butene, leading to decreased selectivity; Moreover, at current density above 10 mA·cm-2, partial [H] atoms are combined to H? gas, leading to a significant decrease in the Faraday efficiency. This study provides a direction for designing highly stable, selective olefin hydrogenation electrodes.

Key words: Butadiene, Selective hydrogenation, Platinum dendritic electrode, Electro-catalysis, Electrodeposition

CLC Number:

O646

TrendMD:

GUAN Zelong, LI Zidan, LUO Haowen, WANG Wanyi, HUANG Chuanfeng, SU Baolian, WANG Zhao. Electrocatalytic Butadiene Selective Hydrogenation over Platinum Dendrite Surfaces on Ti mesh[J]. Chem. J. Chinese Universities, doi: 10.7503/cjcu20250342.

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Electrocatalytic Butadiene Selective Hydrogenation over Platinum Dendrite Surfaces on Ti mesh

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