Controlled ensemble size and elucidation of structure-sensitivity: a new approach in nitride catalysis

受控系综尺寸和结构敏感性阐明:氮化物催化的新方法

基本信息

  • 批准号:
    EP/J018384/1
  • 负责人:
  • 金额:
    $ 39.54万
  • 依托单位:
  • 依托单位国家:
    英国
  • 项目类别:
    Research Grant
  • 财政年份:
    2012
  • 资助国家:
    英国
  • 起止时间:
    2012 至 无数据
  • 项目状态:
    已结题

项目摘要

Most industrial chemical processes use catalysts to enhance the rate at which a reaction proceeds or to favour a specific product. Catalysts thus lead to significant savings in the energy used for large scale processes and a reduction in the amount of waste generated. Amongst the catalysts applied, heterogeneous catalysts are the most practical due to the ease of their separation from product streams. This project will combine synthetic and application based advances to metal nitrides which are an emerging class of heterogeneous catalyst with interesting and distinctive properties. The approach taken is to exert control over both the size and composition of active centres dispersed within a host matrix. Controlled ensemble size has proven to be a powerful approach with other categories of catalysts. We propose to develop novel materials with enhanced activity for ammonia synthesis, a vitally important reaction on a global scale for which some metal nitrides have already shown activity of potential interest for industrial application. We also plan to target high activities in two other important processes - ammonia decomposition, which is a potential clean hydrogen source for renewable energy applications, and ammoxidation, important in chemicals synthesis. The latter is a particularly challenging target which requires catalyst design that combines different functionalities within active centres. Our programme combines the development of catalyst synthesis routes, which will be used to control the size and elemental composition of the catalytic sites with extensive catalyst testing, involving reactions performed under industrially relevant conditions.
大多数工业化学过程使用催化剂来提高反应进行的速率或有利于特定产品。因此,催化剂可以显着节省大规模工艺所用的能源,并减少产生的废物量。在所应用的催化剂中,多相催化剂是最实用的,因为它们易于从产物流中分离。该项目将结合金属氮化物的合成和基于应用的进步,金属氮化物是一种新兴的多相催化剂,具有有趣且独特的特性。所采取的方法是对分散在主体基质内的活性中心的大小和组成进行控制。事实证明,控制系综尺寸对于其他类别的催化剂来说是一种有效的方法。我们建议开发具有增强氨合成活性的新型材料,氨合成是全球范围内至关重要的反应,一些金属氮化物已经表现出具有工业应用潜在兴趣的活性。我们还计划在另外两个重要过程中实现高活性:氨分解(这是可再生能源应用的潜在清洁氢源)和氨氧化(在化学品合成中很重要)。后者是一个特别具有挑战性的目标,需要结合活性中心内不同功能的催化剂设计。我们的计划结合了催化剂合成路线的开发,该路线将用于控制催化位点的尺寸和元素组成以及广泛的催化剂测试,涉及在工业相关条件下进行的反应。

项目成果

期刊论文数量(10)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
An In Situ XAS Study of the Cobalt Rhenium Catalyst for Ammonia Synthesis.
用于氨合成的钴铼催化剂的原位 XAS 研究。
  • DOI:
    10.1007/s11244-018-0892-7
  • 发表时间:
    2018
  • 期刊:
  • 影响因子:
    3.6
  • 作者:
    Mathisen K
  • 通讯作者:
    Mathisen K
The influence of pre-treatment gas mixture upon the ammonia synthesis activity of Co-Re catalysts
  • DOI:
    10.1016/j.catcom.2015.04.016
  • 发表时间:
    2015-08-05
  • 期刊:
  • 影响因子:
    3.7
  • 作者:
    McAulay, K.;Hargreaves, J. S. J.;Zhou, W. Z.
  • 通讯作者:
    Zhou, W. Z.
Understanding the Structure/Activity Relationships of Interstitial Nitrides for Ammonia Synthesis
了解用于氨合成的间隙氮化物的结构/活性关系
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
    McFarlane A.R.
  • 通讯作者:
    McFarlane A.R.
The role of preparation route upon the ambient pressure ammonia synthesis activity of Ni2Mo3N
  • DOI:
    10.1016/j.apcata.2014.10.030
  • 发表时间:
    2015-09
  • 期刊:
  • 影响因子:
    5.5
  • 作者:
    N. Bion;F. Can;J. Cook;J. Hargreaves;A. Hector;W. Levason;Andrew R. McFarlane;Mélissandre Richard;K. Sardar
  • 通讯作者:
    N. Bion;F. Can;J. Cook;J. Hargreaves;A. Hector;W. Levason;Andrew R. McFarlane;Mélissandre Richard;K. Sardar
Synthesis and methane cracking activity of a silicon nitride supported vanadium nitride nanoparticle composite.
  • DOI:
    10.1039/c7dt00285h
  • 发表时间:
    2017-07
  • 期刊:
  • 影响因子:
    4
  • 作者:
    Ihfaf Alshibane;Justin S. J. Hargreaves;A. Hector;W. Levason;Andrew R. McFarlane
  • 通讯作者:
    Ihfaf Alshibane;Justin S. J. Hargreaves;A. Hector;W. Levason;Andrew R. McFarlane
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Justin Hargreaves其他文献

Justin Hargreaves的其他文献

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{{ truncateString('Justin Hargreaves', 18)}}的其他基金

Next generation ammonia synthesis: a highly integrated computational modelling and experimental approach
下一代氨合成:高度集成的计算建模和实验方法
  • 批准号:
    EP/T027851/1
  • 财政年份:
    2021
  • 资助金额:
    $ 39.54万
  • 项目类别:
    Research Grant
First principles design of novel ammonia synthesis catalysts
新型氨合成催化剂的第一性原理设计
  • 批准号:
    EP/L02537X/1
  • 财政年份:
    2014
  • 资助金额:
    $ 39.54万
  • 项目类别:
    Research Grant
The development of novel and well defined visible-light photocatalytic materials as a vehicle for the transfer of expertise
开发新颖且明确的可见光光催化材料作为专业知识转移的载体
  • 批准号:
    EP/E012167/1
  • 财政年份:
    2006
  • 资助金额:
    $ 39.54万
  • 项目类别:
    Research Grant

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Controlled ensemble size - a new approach in nitride catalysis
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  • 批准号:
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  • 财政年份:
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