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Chem. J. Chinese Universities ›› 2026, Vol. 47 ›› Issue (6): 20250342.doi: 10.7503/cjcu20250342

• Physical Chemistry • Previous Articles     Next Articles

Electrocatalytic Butadiene Selective Hydrogenation over Platinum Dendrite Surfaces on Ti Mesh

GUAN Zelong1, LI Zidan1, LUO Haowen1, WANG Wanyi2, HUANG Chuanfeng2, SU Baolian1, WANG Zhao1()   

  1. 1.State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
    2.School of Chemistry,Chemical Engineering and Life Sciences,Wuhan University of Technology,Wuhan 430070,China
    3.Laboratory of Inorganic Materials Chemistry(CMI),University of Namur,Namur B? 5000,Belgium
  • Received:2025-11-07 Online:2026-06-10 Published:2025-12-16
  • Contact: WANG Zhao E-mail:zhao.wang@whut.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(22293022);the “Wuhan Yingcai” Program, China(202501jc0252)

Abstract:

In this study, titanium mesh supported dendritic platinum(Pt) branch catalyst(Pt x /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 1200 s of electrodeposition (Pt1200 s/Ti) has a superior performance at a current density of -6.25 mA/cm², reaching a butadiene conversion rate of 73% and a target product Faraday efficiency exceeding 75% after 8 h of time on stream. Further analysis reveals that, at current density below 6.25 mA/cm², 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/cm², the excessive [H] drives the reaction toward over-hydrogenation of butene, leading to decreased selectivity; moreover, at current density above 10 mA/cm², partial [H] atoms are combined to H₂ gas, leading to a significant decrease in the Faraday efficiency. This study provides a direction for designing highly stable, selective olefin hydrogenation electrocatalysts.

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

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