Bifunctionality of Intermetallic Pd-In/Indium-Oxide Catalysts for CO2 Hydrogenation to Methanol
CO2 加氢制甲醇金属间化合物 Pd-In/Ind-Oxide 催化剂的双功能
基本信息
- 批准号:2323274
- 负责人:
- 金额:$ 62.37万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2023
- 资助国家:美国
- 起止时间:2023-12-01 至 2026-11-30
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
Developing catalytic processes to efficiently convert carbon dioxide (CO2) to chemicals and fuels is essential for mitigating CO2 emissions and enabling technologies that utilize renewable energy. The direct conversion of CO2 to methanol is particularly attractive because methanol can serve as a fuel in existing power generation systems and is used as a feedstock in the commercial-scale synthesis of a wide-range of important chemicals. Currently, however, catalytic processes to directly hydrogenate CO2 to methanol are unsuitable for commercial use. The major difficulty is that most catalytic materials lack the stability and activity to operate at the low temperatures needed for CO2-based methanol synthesis. In this project, the investigators are developing a fundamental understanding of the selective hydrogenation of CO2 to methanol using bifunctional metal/metal-oxide catalysts. Exploiting the distinct chemical functionality of the metallic and oxide components of these catalysts is necessary for efficiently and selectively converting CO2 to methanol. The investigators are providing opportunities for high school and undergraduate students to participate in their research and are focused on recruiting students from underrepresented groups to engage in these activities. These outreach activities seek to promote the science, technology, engineering and math (STEM) disciplines. The project aims to develop a fundamental understanding of Pd-promoted In2O3 (indium oxide) catalysts and determine how the chemical bifunctionality of these surfaces can be exploited to enhance the selective hydrogenation of CO2 to methanol. The key idea is that coexisting In2O3 and intermetallic PdxIny phases will act cooperatively to enhance the hydrogenation of CO2 to methanol by exchanging reaction intermediates and providing interfacial surface sites with unique chemical properties, and that the catalytic behavior can be modified by the PdxIny structure and stoichiometry. This research involves investigations of the structural and chemical properties of Pd-modified In2O3 prepared as planar crystalline surfaces as well as nanocrystalline powders. These materials are investigated using a combination of experimental and theoretical methods including ultrahigh vacuum surface science and catalyst characterization, reactor studies and operando surface spectroscopy, as well as density functional theory and microkinetic modeling. A primary aim of the project is to establish fundamental structure-function relationships to guide the design of Pd-In2O3 catalysts for the selective hydrogenation of CO2 to methanol. The project involves stringent comparisons of the results of first-principles modeling with experimental results obtained from planar crystalline surfaces and more complex nanoparticles to develop a robust understanding of the direct hydrogenation of CO2 to methanol.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
开发催化工艺,将二氧化碳有效转化为化学品和燃料,对于减少二氧化碳排放和实现利用可再生能源的技术至关重要。将CO2直接转化为甲醇是特别有吸引力的,因为甲醇可以在现有的发电系统中用作燃料,并且在广泛的重要化学品的商业规模合成中用作原料。然而,目前,直接将CO2转化为甲醇的催化方法不适合于商业用途。主要的困难是大多数催化材料缺乏稳定性和活性,无法在CO2基甲醇合成所需的低温下操作。在这个项目中,研究人员正在开发一个使用双功能金属/金属氧化物催化剂的CO2选择性加氢甲醇的基本理解。利用这些催化剂的金属和氧化物组分的独特化学功能对于有效地和选择性地将CO2转化为甲醇是必要的。调查人员正在为高中和本科生提供参与他们研究的机会,并专注于招募代表性不足的群体的学生参与这些活动。这些外联活动旨在促进科学、技术、工程和数学学科。该项目旨在对Pd促进的In 2 O3(氧化铟)催化剂有一个基本的了解,并确定如何利用这些表面的化学双功能性来增强CO2选择性加氢为甲醇。其关键思想是,共存的In 2 O3和金属间PdxIny相将协同作用,以提高CO2加氢到甲醇的反应中间体交换,并提供具有独特的化学性质的界面表面位点,和催化行为可以修改的PdxIny结构和化学计量。本研究涉及的结构和化学性质的Pd改性的In 2 O3制备的平面晶体表面以及纳米晶粉末的调查。这些材料的研究使用的实验和理论方法,包括真空表面科学和催化剂表征,反应器的研究和operando表面光谱,以及密度泛函理论和微观动力学建模相结合。该项目的主要目的是建立基本的结构-功能关系,以指导用于CO2选择性加氢制甲醇的Pd-In 2 O3催化剂的设计。该项目将第一性原理模型的结果与从平面晶体表面和更复杂的纳米颗粒获得的实验结果进行严格比较,以发展对CO2直接氢化为甲醇的强大理解。该奖项反映了NSF的法定使命,并通过使用基金会的知识价值和更广泛的影响审查标准进行评估,被认为值得支持。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Jason Weaver其他文献
Radiosurgical and Radiation Considerations for Residual, Recurrent and Malignant Spinal Cord Tumor
残余、复发和恶性脊髓肿瘤的放射外科和放射注意事项
- DOI:
- 发表时间:
2019 - 期刊:
- 影响因子:0
- 作者:
Jason Weaver - 通讯作者:
Jason Weaver
Self-Fulfilling Prophecies in Ability Settings
能力设定中的自我实现预言
- DOI:
10.1080/00224545.2015.1076761 - 发表时间:
2016 - 期刊:
- 影响因子:0
- 作者:
Jason Weaver;Jennifer Filson Moses;M. Snyder - 通讯作者:
M. Snyder
Elevating Norm Over Substance: Self-Monitoring as a Predictor of Decision Criteria and Decision Time among Independent Voters
提升规范而非实质内容:自我监控作为独立选民决策标准和决策时间的预测因素
- DOI:
- 发表时间:
2010 - 期刊:
- 影响因子:0
- 作者:
E. Girvan;Jason Weaver;M. Snyder - 通讯作者:
M. Snyder
The Dual Scales of Sexual Orientation
性取向的双重尺度
- DOI:
10.1080/15299716.2019.1650318 - 发表时间:
2019 - 期刊:
- 影响因子:1.7
- 作者:
A. Hale;Lindsay B. Miller;Jason Weaver;Sarah Husney;Regina Henares - 通讯作者:
Regina Henares
Intradural-Extramedullary and Intramedullary Spinal Metastases
硬膜内-髓外和髓内脊柱转移瘤
- DOI:
10.1007/978-3-319-99438-3_19 - 发表时间:
2019 - 期刊:
- 影响因子:0
- 作者:
Alan Siu;M. Labagnara;K. Arnautović;Jason Weaver - 通讯作者:
Jason Weaver
Jason Weaver的其他文献
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{{ truncateString('Jason Weaver', 18)}}的其他基金
CAS: IrO2 Based Mixed Metal Oxides for the Selective Oxidation of Methane
CAS:用于甲烷选择性氧化的 IrO2 基混合金属氧化物
- 批准号:
2102211 - 财政年份:2021
- 资助金额:
$ 62.37万 - 项目类别:
Standard Grant
Oxidation Chemistry on Transition-Metal Doped Rare Earth Oxide Surfaces: Factors Determining Selectivity for the Oxidative Coupling of Methane
过渡金属掺杂稀土氧化物表面的氧化化学:决定甲烷氧化偶联选择性的因素
- 批准号:
1464765 - 财政年份:2015
- 资助金额:
$ 62.37万 - 项目类别:
Standard Grant
International Collaboration in Chemistry: Oxidation Chemistry of Model Rare Earth Oxide Surfaces - Factors Determining Selectivity for the Oxidative Coupling of Methane
国际化学合作:模型稀土氧化物表面的氧化化学 - 决定甲烷氧化偶联选择性的因素
- 批准号:
1026712 - 财政年份:2010
- 资助金额:
$ 62.37万 - 项目类别:
Standard Grant
Tailoring Enantiospecific Properties of Chiral Metal Nanoclusters on Chiral Metal Oxides
手性金属氧化物上手性金属纳米团簇的对映特性的定制
- 批准号:
0911553 - 财政年份:2009
- 资助金额:
$ 62.37万 - 项目类别:
Standard Grant
CAREER: Growth, Properties and Reactivity of Oxygen Phases on Noble Metal Catalysts: Bridging the Pressure Gap with Gas-Phase Oxygen Atoms
职业:贵金属催化剂上氧相的生长、性质和反应性:用气相氧原子弥合压力间隙
- 批准号:
0348287 - 财政年份:2004
- 资助金额:
$ 62.37万 - 项目类别:
Standard Grant
Elementary Reactions of Hyperthermal Gas-Phase Oxygen Atoms with Atomic Adsorbates on Si(100)-(2x1): Mechanisms and Kinetics
高温气相氧原子与 Si(100)-(2x1) 上原子吸附物的基本反应:机理和动力学
- 批准号:
0207291 - 财政年份:2002
- 资助金额:
$ 62.37万 - 项目类别:
Standard Grant
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