Development of advanced catalysts using fine particles of intermetallic compounds.

使用金属间化合物细颗粒开发先进催化剂。

基本信息

  • 批准号:
    17560680
  • 负责人:
  • 金额:
    $ 2.24万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
  • 财政年份:
    2005
  • 资助国家:
    日本
  • 起止时间:
    2005 至 2006
  • 项目状态:
    已结题

项目摘要

Supported and unsupported intermetallic compounds (IMCs), Ni_3Ge, Pd_3Bi, Pt_3Sn, PtCu and Pt_3Co, were prepared and characterized by XRD to identify their crystal phases and obtain the size of their crystallites. Temperature programmed reduction of IMCs was measured to determine the appropriate temperature of reduction. IR spectra of adsorbed CO indicated the electron transfer from Ni to Ge in the case of Ni_3Ge and from Bi to Pd in the case of Pd_3Bi. The catalytic activity for H_2-D_2 equilibration was measured and it was revealed that only Ni_3Ge showed comparable activity to Ni and that the other IMCs showed much lower activity than Pd and Pt.Silica supported IMCs were used for the catalyst in acetylene hydrogenation with a continuous flow reaction system. Ni_3Ge/SiO_2 and Pd_3Bi/SiO_2 gave high selectivity for the partial hydrogenation into ethylene. The latter was found to have higher selectivity and stability for ethylene formation than commercial Pd-Ag/SiO_2. Both IMC catalysts were also active and selective for the selective hydrogenation of a small amount of acetylene in excess ethylene. Pt_3Sn/H-SAP0-11 showed high selectivity to isobutene in the dehydroisomerization of butane. The catalytic properties for the preferential oxidation of CO in hydrogen was studied for Pt-IMCs. PtCu/SiO_2 and Pt_3Co/SiO_2 showed much higher activity than Pt/SiO_2 at low temperatures. The addition of water in the feed accelerated the rate of oxidation on PtCu/SiO_2. It was revealed that water molecules produced through the oxidation of hydrogen accelerate the adsorption of oxygen molecules on the surface to promote the oxidation of CO. In the case of Pt_3Co/SiO_2, the dissociative adsorption of 02 takes place on Co atoms to accelerate the oxidation of CO at low temperatures.
制备了负载型和非负载型金属间化合物(IMC) Ni_3Ge、Pd_3Bi、Pt_3Sn、PtCu 和 Pt_3Co,并通过 XRD 进行表征,以鉴定其晶相并获得其微晶尺寸。测量IMC的程序升温还原以确定适当的还原温度。吸附 CO 的红外光谱表明,在 Ni_3Ge 的情况下,电子从 Ni 转移到 Ge,在 Pd_3Bi 的情况下,电子从 Bi 转移到 Pd。测量了H_2-D_2平衡的催化活性,结果表明,只有Ni_3Ge表现出与Ni相当的活性,而其他IMCs的活性远低于Pd和Pt。二氧化硅负载的IMCs用于乙炔加氢连续流反应系统中的催化剂。 Ni_3Ge/SiO_2和Pd_3Bi/SiO_2对部分加氢生成乙烯具有较高的选择性。发现后者比商业Pd-Ag/SiO_2对乙烯形成具有更高的选择性和稳定性。两种IMC催化剂对于过量乙烯中少量乙炔的选择性加氢也具有活性和选择性。 Pt_3Sn/H-SAP0-11在丁烷脱氢异构化中表现出对异丁烯的高选择性。研究了 Pt-IMCs 在氢气中优先氧化 CO 的催化性能。 PtCu/SiO_2和Pt_3Co/SiO_2在低温下表现出比Pt/SiO_2高得多的活性。进料中加水加速了PtCu/SiO_2的氧化速率。结果表明,氢气氧化产生的水分子加速了氧分子在表面的吸附,从而促进了CO的氧化。在Pt_3Co/SiO_2的情况下,O 2 发生在Co原子上的解离吸附,从而在低温下加速了CO的氧化。

项目成果

期刊论文数量(5)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Dehydroisomerization of butane into isobutene of Pt-Sn intermetallic compounds supported on H-SAPO-11
H-SAPO-11 负载 Pt-Sn 金属间化合物丁烷脱氢异构成异丁烯
  • DOI:
  • 发表时间:
    2006
  • 期刊:
  • 影响因子:
    0
  • 作者:
    T.Komatsu;H.Ikenaga
  • 通讯作者:
    H.Ikenaga
Dehydroisomerization of butane into isobutene on Pt-Sn intermetallic compounds supported on H-SAPO-11
  • DOI:
    10.1016/j.jcat.2006.05.018
  • 发表时间:
    2006-07
  • 期刊:
  • 影响因子:
    7.3
  • 作者:
    T. Komatsu;H. Ikenaga
  • 通讯作者:
    T. Komatsu;H. Ikenaga
CO_2 reforming of methane on Ni-and Co-based intermetallic compound catalysts
镍钴基金属间化合物催化剂上甲烷CO_2重整
Fischer–Tropsch synthesis on RuTi intermetallic compound catalyst
  • DOI:
    10.1016/j.apcata.2004.10.028
  • 发表时间:
    2005-01
  • 期刊:
  • 影响因子:
    5.5
  • 作者:
    T. Komatsu;Y. Fukui
  • 通讯作者:
    T. Komatsu;Y. Fukui
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KOMATSU Takayuki其他文献

KOMATSU Takayuki的其他文献

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{{ truncateString('KOMATSU Takayuki', 18)}}的其他基金

Is inflammasome antagonism of the paramyxovirus V protein important for the pathogenicity ?
副粘病毒 V 蛋白的炎症小体拮抗作用对于致病性是否重要?
  • 批准号:
    17K08866
  • 财政年份:
    2017
  • 资助金额:
    $ 2.24万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Mechanism of unique self-powdering phenomenon in ferroelastic crystals and development of materials with giant internal stress
铁弹性晶体独特自粉化现象的机理及大内应力材料的研制
  • 批准号:
    25630277
  • 财政年份:
    2013
  • 资助金额:
    $ 2.24万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Preparation and characterization of intermetallic compound nanoparticles to create novel catalysts having high performance.
金属间化合物纳米粒子的制备和表征,以创造具有高性能的新型催化剂。
  • 批准号:
    23360353
  • 财政年份:
    2011
  • 资助金额:
    $ 2.24万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Propose of Melt Electro-Spinning Method and Fabrication ofLithium Ion Conductive Nano-Scale Glass
熔融静电纺丝法制备锂离子导电纳米玻璃的提出
  • 批准号:
    23655194
  • 财政年份:
    2011
  • 资助金额:
    $ 2.24万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Construction of New Crystal Growth Engineering Leaded by Laser-Induced Space Controlled Crystallization
激光诱导空间控制晶化引领的新型晶体生长工程的构建
  • 批准号:
    23246114
  • 财政年份:
    2011
  • 资助金额:
    $ 2.24万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Fabrication and light control of optical functional glass with panoscopic morphology by rare-earth atom heat processing
稀土原子热处理全景形貌光学功能玻璃的制备与光控
  • 批准号:
    20900116
  • 财政年份:
    2008
  • 资助金额:
    $ 2.24万
  • 项目类别:
Establishment of Laser-Induced Atom Heat Method and Functional Single Crystal Patterning
激光诱导原子热方法和功能性单晶图案化的建立
  • 批准号:
    19206069
  • 财政年份:
    2007
  • 资助金额:
    $ 2.24万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Fabrication of Direction Controlled Single Crystal Lines by Samarium Atom Heat Processing and Their Device Applications
钐原子热处理制备方向控制单晶及其器件应用
  • 批准号:
    16360324
  • 财政年份:
    2004
  • 资助金额:
    $ 2.24万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Development of advanced catalysts from the intermetallic compounds between two transition metals
利用两种过渡金属之间的金属间化合物开发先进催化剂
  • 批准号:
    14550759
  • 财政年份:
    2002
  • 资助金额:
    $ 2.24万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Development of New Technique for Patterning of Refractive Index Distribution in Rare-Earth Tellurite Glasses
稀土碲酸盐玻璃折射率分布图案化新技术的开发
  • 批准号:
    13450269
  • 财政年份:
    2001
  • 资助金额:
    $ 2.24万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)

相似海外基金

Fabrication and activity evaluation of electrode catalysts with intermetallic compound nanoclusters uniformly supported on organic molecular substrates
有机分子基底均匀负载金属间化合物纳米团簇电极催化剂的制备及活性评价
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B2型金属间化合物中氢固溶态科学及其在低温透氢合金中的应用
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通过优化 Pt 基有序金属间化合物催化剂 d 带中心来提高 ORR
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研究金属间化合物的形成、柯肯达尔空洞成核和焊点失效
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金属间化合物纳米粒子的制备和表征,以创造具有高性能的新型催化剂。
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通过马氏体转变增强 B2 型金属间化合物的延展性
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