Rational Design of Highly Efficient PdIn-In 2 O 3 Interfaces through Capture-alloying Strategy for Benzyl Alcohol Partial Oxidation - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue ACS Applied Materials & Interfaces Année : 2023

Rational Design of Highly Efficient PdIn-In 2 O 3 Interfaces through Capture-alloying Strategy for Benzyl Alcohol Partial Oxidation

Peng Bai
Zhenxiang Zhao
Yonghui Liu
  • Fonction : Auteur
Chunzheng Wang
Shixingwang Ma
  • Fonction : Auteur
Lianming Zhao
Svetlana Mintova
Zifeng Yan

Résumé

Well-dispersed PdIn bimetallic alloy nanoparticles (1~4 nm) were immobilized on mesostructured silica through an in situ capture-alloying strategy and PdIn-In 2 O 3 interfaces were rationally constructed by changing the In 2 O 3 loading and varying the reduction temperature. The catalytic performance for benzyl alcohol partial oxidation was evaluated and a catalytic synergy was observed. The Pd-rich PdIn-In 2 O 3 interface is prone to formation on the catalyst with a low In 2 O 3 loading after reduced at 300 o C. It was demonstrated that the Pd-rich PdIn-In 2 O 3 interface is more active for benzyl alcohol partial oxidation than In-rich Pd 2 In 3 species which is likely to be formed at a high reduction temperature (400 o C). The high catalytic activity on Pd-rich PdIn-In 2 O 3 interface was attributed to the exposure of more Pd-enriched active sites and an optimized PdIn-In 2 O 3 /Pd assemble ratio enhanced the oxygen transfer during the partial oxidation. The DFT calculation confirmed that the Pd-rich Pd 3 In 1 (111)-In 2 O 3 interface facilitated the activation of oxygen molecules, resulting in a high catalytic activity.
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Dates et versions

hal-04285841 , version 1 (14-11-2023)

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Citer

Peng Bai, Zhenxiang Zhao, Yonghui Zhang, Zhengke He, Yonghui Liu, et al.. Rational Design of Highly Efficient PdIn-In 2 O 3 Interfaces through Capture-alloying Strategy for Benzyl Alcohol Partial Oxidation. ACS Applied Materials & Interfaces, 2023, 15 (15), pp.19653-19664. ⟨10.1021/acsami.3c00810⟩. ⟨hal-04285841⟩
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