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首页> 外文期刊>Polyhedron: The International Journal for Inorganic and Organometallic Chemistry >Palladium nanoparticles embedded in MOF matrices: Catalytic activity and structural stability in iodobenzene methoxycarbonylation
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Palladium nanoparticles embedded in MOF matrices: Catalytic activity and structural stability in iodobenzene methoxycarbonylation

机译:嵌入在MOF基质中的钯纳米粒子:碘苯甲氧基羰基化的催化活性和结构稳定性

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This paper reports for the first time iodobenzene methoxycarbonylation over Pd-containing catalysts based on MOF materials differed in topology, texture properties and organic and inorganic building blocks: MIL-53(Al) (AlOHbdc, bdc = benzene-1,4-dicarboxylate), NH2-MIL-53(Al) (AlOHabdc, abdc=2-aminobenzene-1,4-dicarboxylate), NH2-MIL-101(Al) (Al(3)Oabdc)(3), and ZIF-8 (Zn(Melm)(2). Melm = 2-methylimidazolate). Low-loaded nanocatalysts (0.1-0.5 wt.% Pd) based on MIL-53(Al) and ZIF-8 demonstrated a superior activity as compared to those on conventional supports such as silica and alumina. The catalytic performance of the synthesized nanocatalysts is affected both by the MOF support nature and Pd loading. Another important factor governing the performance of the Pd/MOF catalysts is the preparation procedure of the metal-organic matrices which affects their crystal size and morphology. This effect was studied for ZIF-8 materials. (C) 2018 Published by Elsevier Ltd.
机译:本文报道了基于MOF材料的Pd含催化剂的第一次碘苯甲氧基羰基化,拓扑,质地性能和有机和无机结构块:MIL-53(AL)(Alohbdc,Bdc =苯-1,4-二羧酸盐)。 ,NH2-MIL-53(A1)(Alohabdc,ABDC = 2-氨基苯-1,4-二羧酸盐),NH2-MIL-101(Al)(Al(3)OABDC)(3)和ZIF-8(Zn (梅尔姆)(2)。梅尔姆= 2-甲基咪唑酯)。 基于MIL-53(Al)和ZIF-8的低负载纳米催化剂(0.1-0.5重量%PD)证明了与常规载体如二氧化硅和氧化铝等常规载体相比的优异活性。 合成的纳米催化剂的催化性能受到MOF支持性质和PD负载的影响。 针对Pd / MOF催化剂的性能的另一个重要因素是金属 - 有机基质的制备方法,其影响其晶体尺寸和形态学。 对ZIF-8材料研究了这种效果。 (c)2018年由elestvier有限公司发布

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