用于葡萄糖氢化的介质结构碳上含 Ru 催化剂的合成与研究

IF 1.8 3区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR
Yu. N. Zaitseva, A. O. Eremina, V. V. Sychev, V. A. Golubkov, S. A. Novikova, O. P. Taran, S. D. Kirik
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引用次数: 0

摘要

摘要 开发了基于功能化 CMK-3(由 KAIST 制成的碳介质结构)碳材料和钌纳米粒子的氢化催化剂。SBA-15中间结构硅酸盐具有增大的壁通道,被用作碳复型合成的模板。研究了通过潮湿空气氧化和磺化对碳材料功能化对催化剂形态、理化性质和活性的影响。研究确定了支撑钌的分散程度、定位和电子状态取决于支撑功能化方法。通过多种物理化学方法证实了钌沉积后初始载体结构的保留。金属颗粒分布在载体表面,没有团聚现象,其大小与介观结构一致,为活性中心提供了很高的可及性。催化剂在葡萄糖氢化成山梨醇的过程中进行了测试。孔隙形态和初始碳支撑结构的保留对 Ru 粒子的催化活性起着重要作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Synthesis and Study of Ru-Containing Catalysts on Mesostructured Carbon for Glucose Hydrogenation

Synthesis and Study of Ru-Containing Catalysts on Mesostructured Carbon for Glucose Hydrogenation

Abstract

Hydrogenation catalysts based on functionalized CMK-3 (Carbon Mesostructured by KAIST) carbon material and ruthenium nanoparticles have been developed. SBA-15 mesostructured silicate with enlarged wall channels has been used as a template for the carbon replica synthesis. The effect of carbon material functionalization via humid air oxidation and sulfonation on the morphology, physicochemical properties, and activity of the catalyst has been studied. The degree of dispersion, localization, and electronic state of supported ruthenium depending on the support functionalization method have been determined. The initial support structure preservation after Ru deposition has been confirmed by a number of physicochemical methods. Metal particles are distributed over carrier surface without agglomeration, at size corresponding to mesostructure which provides high accessibility of active centers. The catalysts have been tested in the hydrogenation of glucose into sorbitol. Pore morphology and preservation of initial carbon support structure play important role in the catalytic activity of Ru particles.

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来源期刊
Russian Journal of Inorganic Chemistry
Russian Journal of Inorganic Chemistry 化学-无机化学与核化学
CiteScore
3.10
自引率
38.10%
发文量
237
审稿时长
3 months
期刊介绍: Russian Journal of Inorganic Chemistry is a monthly periodical that covers the following topics of research: the synthesis and properties of inorganic compounds, coordination compounds, physicochemical analysis of inorganic systems, theoretical inorganic chemistry, physical methods of investigation, chemistry of solutions, inorganic materials, and nanomaterials.
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