ENCAT中残留氯的影响™ 开发包封Pd的30种催化剂：来自原位Pd K、L3和Cl K边缘XAS的见解

Q1 Materials Science Catalysis Structure & Reactivity Pub Date : 2017-08-02 DOI:10.1080/2055074X.2017.1348711

M. Newton, R. Nicholls, J. Brazier, B. Nguyen, Christopher J. Mulligan, K. Hellgardt, Elena M. Barreiro, H. Emerich, K. K. Hii, I. Snigireva, P. Thompson

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引用次数: 7

摘要

摘要原位X射线吸收光谱（XAS）和Pd K、LIII和Cl K边缘表明，Cl可以在ENCAT中大量存在™ 30催化剂，并且它可以严重阻碍Pd纳米粒子（NP）在流动溶剂中的发展。我们还表明，虽然聚合物包封可以保护Pd免受溶剂诱导的Pd纳米颗粒团聚的影响，但有证据表明，它不能阻止通过与含水乙醇溶剂反应形成PdHx，并且，正如所收到的，ENCAT™ 30 NP催化剂在大多数情况下不包括纳米颗粒Pd0，而与Cl的存在无关。

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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Effect of retained chlorine in ENCAT™ 30 catalysts on the development of encapsulated Pd: insights from in situ Pd K, L3 and Cl K-edge XAS

Abstract In situ X-ray absorption spectroscopy (XAS) and Pd K, LIII, and Cl K-edges shows that Cl can be present in significant amounts in ENCAT™ 30 catalysts and that it can severely retard Pd nanoparticle (NP) development in flowing solvents. We also show that whilst polymeric encapsulation protects the Pd against solvent induced agglomeration of Pd nanoparticles the evidence suggests it does not prevent the formation PdHx through reaction with the aqeous ethanol solvent, and that, as received, ENCAT™ 30 NP catalysts are not, for the most part, comprised of nanoparticulate Pd0 irrespective of the presence of Cl.

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