Chemical Reactivity Indices as a Tool for Understanding the Support-Effect in Supported Metal Oxide Catalysts

Tim Fievez; Bert M. Weckhuysen; Paul Geerlings

首页> 外文期刊>The journal of physical chemistry, C. Nanomaterials and interfaces >Chemical Reactivity Indices as a Tool for Understanding the Support-Effect in Supported Metal Oxide Catalysts

【24h】

Chemical Reactivity Indices as a Tool for Understanding the Support-Effect in Supported Metal Oxide Catalysts

机译：化学反应性指标作为了解负载型金属氧化物催化剂中负载效应的工具

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

The oxidation of methanol to formaldehyde on supported vanadium oxides is investigated with chemical reactivity indices. Starting from a simple model for isolated vanadium oxides supported on SiO2, Al2O3, TiO2, and ZrO2, a detailed investigation of the reaction mechanism for methanol oxidation on these catalysts is presented. Our results follow current insights into the reaction mechanism and provide a new interesting way for rationalizing the support-effect on the basis of the concept of bond ionicity as probed by computed electrostatic potential based atomic charges for the vanadium and oxygen atoms. The origin of this rationalization is further investigated by visualizing the density of the determining vanadium-oxygen-support structure for the different supports.

机译：用化学反应指数研究了甲醇在负载型钒氧化物上的氧化成甲醛。从简单的SiO2，Al2O3，TiO2和ZrO2上负载的钒氧化物的模型开始，对甲醇在这些催化剂上氧化的反应机理进行了详细研究。我们的结果遵循了对反应机理的最新见解，并为键合离子性的概念提供了一种有趣的新方法，以合理化支持作用，如通过计算出的基于钒和氧原子的静电势原子电荷所探测到的。通过可视化确定不同载体的钒-氧载体结构的密度，可以进一步研究这种合理化的起源。

著录项

来源
《The journal of physical chemistry, C. Nanomaterials and interfaces》 |2009年第46期|共8页
作者
Tim Fievez; Bert M. Weckhuysen; Paul Geerlings;
展开▼
作者单位

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类物理化学（理论化学）、化学物理学;
关键词

相似文献

外文文献
中文文献
专利

1. Chemical Reactivity Indices as a Tool for Understanding the Support-Effect in Supported Metal Oxide Catalysts [J] . Tim Fievez, Bert M. Weckhuysen, Paul Geerlings The journal of physical chemistry, C. Nanomaterials and interfaces . 2009,第46期

机译：化学反应性指标作为了解负载型金属氧化物催化剂中负载效应的工具
2. EXAFS spectroscopy as a tool to probe metal-support interaction and surface molecular structures in oxide-supported catalysts: application to Al2O3-supported Ni(II) complexes and ZrO2-supported tungstates [J] . Xavier Carrier, Eric Marceau, Hugo Carabmeiro Physical chemistry chemical physics: PCCP . 2009,第35期

机译：EXAFS光谱学作为探测氧化物负载型催化剂中金属-负载相互作用和表面分子结构的工具：应用于Al2O3负载的Ni（II）配合物和ZrO2负载的钨酸盐
3. Tantalum oxide-supported metal oxide (Re_2O_7, CrO_3, MoO_3, WO_3, V_2O_5, and Nb_2O_5) catalysts: synthesis, Raman characterization and chemically probed by methanol oxidation [J] . Yongsheng Chen, Israel E. Wachs Journal of Catalysis . 2003,第2期

机译：负载钽氧化物的金属氧化物（Re_2O_7，CrO_3，MoO_3，WO_3，V_2O_5和Nb_2O_5）催化剂：合成，拉曼表征和甲醇氧化化学探测
4. Characterisation and Reactivity of Activated Carbon Supported Platinum Catalysts Prepared by Fluidised Bed Organometallic Chemical Vapour Deposition (FBOMCVD) [C] . Ph. Serp, J.C. Hierso, R. Feurer, International congress on catalysis;ICC . 2000

机译：流化床有机金属化学气相沉积（FBOMCVD）制备的活性炭负载的铂催化剂的表征和反应活性
5. Metal oxide-supported cluster catalysts derived from organometallic precursors: Spectroscopic characterization in reactive environments. [D] . Lai, Felix ShangChung. 2003

机译：衍生自有机金属前体的金属氧化物负载的簇状催化剂：反应环境中的光谱表征。
6. Traditional Sol-Gel Chemistry as a Powerful Tool for the Preparation of Supported Metal and Metal Oxide Catalysts [O] . Serena Esposito 2019

机译：传统溶胶-凝胶化学是制备负载型金属和金属氧化物催化剂的有力工具
7. Atomic XAFS as a tool to probe the reactivity of metal oxide catalysts: Quantifying metal oxide support effects [O] . Keller, D. E., Airaksinen, S. M. K., Krause, A. O., 2007

机译：原子XAFS作为探测金属氧化物催化剂反应性的工具：量化金属氧化物的支持作用
8. Hydrous metal oxide-supported catalysts. Part 1, Preparation chemistry and physical and chemical properties. [R] . Dosch, R. G., Stephens, H. P., Stohl, F. V., 1990

机译：含水金属氧化物负载的催化剂。第1部分，制备化学和物理和化学特性。

Chemical Reactivity Indices as a Tool for Understanding the Support-Effect in Supported Metal Oxide Catalysts

摘要

著录项

相似文献

相关主题

期刊订阅