金属间化合物
双金属片
催化作用
纳米材料基催化剂
脱氢
化学
纳米颗粒
金属
选择性
钯
化学工程
纳米技术
材料科学
合金
有机化学
工程类
作者
Amishwar Raysing Shelte,Sanjay Pratihar
出处
期刊:Inorganic Chemistry
[American Chemical Society]
日期:2023-06-01
卷期号:62 (23): 9089-9098
被引量:1
标识
DOI:10.1021/acs.inorgchem.3c00886
摘要
Atomically monodispersed intermetallic catalysts comprising highly accessible active sites are ideal heterogeneous catalytic materials. Designing such types of nanocatalysts on carbonaceous supports with high loading, however, remains a formidable challenge. Demonstrated herein is an effective synthetic strategy to produce highly dispersed intermetallic Pd-Sn nanoparticles on various supports with high catalyst loading (upto 24 wt % Pd and 18 wt % Sn) using a discrete bimetallic Pd-Sn complex, which in turn is highly superior as compared to conventionally used methods using individual metal salts. Synergistic cooperative interaction between sub-5 nm Pd-rich particles, supports, and large intermetallic Pd-Sn particles allowed their electronic cross-talk, displaying a much higher reaction efficiency with an entirely different selectivity toward a product, which is highly unlikely in the case of comparable individual components or sequentially impregnated bimetallic materials involving in a catalytic/photocatalytic dehydrogenation, hydrogenation, tandem (de)hydrogenation, and amidation reaction. The designed synthetic strategy has the potential to contribute to the development of atomically monodispersed intermetallic high-loading functional materials for advanced electro- and photocatalytic applications.
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