Construction of novel Pd/bacteria@ZIF-8 nanocomposite for size-selective catalysis

IF 11 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Rare Metals Pub Date : 2024-10-26 DOI:10.1007/s12598-024-03008-w

Wei-Qiang Zhou, Ze-Feng Long, Chuan Xu, Jun-Ge Zhang, Peng-Wei Huo, Jia-Wei Liu, Chen Zhou, Quan Wang, Wei Xue, Long Zhang

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Abstract

Hybrid materials with synergistic properties have been used for various applications. Herein, we report a green biosynthesis strategy for the fabrication of a novel Pd/bacteria@ZIF-8 composite, featuring a sandwiched structure and size-selective capabilities. The Shewanella oneidensis (S. oneidensis) MR-1 was selected as the biological reductant to reduce Pd ions and synthesize Pd nanoparticles anchored on the surface of bacteria without the need for additional chemical reductants, bonding agents and toxic surfactants. This innovative sandwiched Pd/bacteria@ZIF-8 catalyst was further coated by the ZIF-8 to enhance its structural integrity. The as-prepared composite exhibits significant catalytic activity and excellent size-selective performance in the hydrogenation of olefins. This methodology opens up a horizon to designing size-selective catalysts through constructing the sandwiched structure.

Graphical abstract

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新型Pd/bacteria@ZIF-8纳米复合材料尺寸选择性催化的构建

具有协同特性的混合材料已被广泛应用于各种领域。在此，我们报告了一种用于制造新型 Pd/bacteria@ZIF-8 复合材料的绿色生物合成策略，该复合材料具有夹层结构和尺寸选择能力。该方法选择了Shewanella oneidensis（S. oneidensis）MR-1作为生物还原剂，用于还原钯离子并合成锚定在细菌表面的钯纳米粒子，而无需额外的化学还原剂、粘接剂和有毒的表面活性剂。这种创新的夹层 Pd/ 细菌@ZIF-8 催化剂还进一步涂覆了 ZIF-8，以增强其结构的完整性。制备的复合材料在烯烃加氢过程中表现出显著的催化活性和优异的尺寸选择性。该方法为通过构建夹层结构设计尺寸选择性催化剂开辟了一条新途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Rare Metals 工程技术-材料科学：综合

CiteScore

12.10

自引率

12.50%

发文量

2919

审稿时长

2.7 months

期刊介绍： Rare Metals is a monthly peer-reviewed journal published by the Nonferrous Metals Society of China. It serves as a platform for engineers and scientists to communicate and disseminate original research articles in the field of rare metals. The journal focuses on a wide range of topics including metallurgy, processing, and determination of rare metals. Additionally, it showcases the application of rare metals in advanced materials such as superconductors, semiconductors, composites, and ceramics.