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中国科学院国家纳米科学中心专利：一种空心核壳结构Au@TiO2纳米复合材料及其制备方法
近期，中国科学院合肥物质科学研究院固体所科研人员在可见-近红外光电探测研究方面取得进展。
近日，中国科学院大连化学物理研究所李灿院士团队与黄家辉研究员团队合作，采用自主发展的等离激元辅助光沉积策略（J. Am. Chem. Soc.，2017），在Au-TiO2界面处选择性沉积惰性的铅氧化物，从而封堵高活性的Au-TiO2界面位点，将反应活性中心从非选择性的界面区域转移到高CO选择性氧化的金属表面区域，最终实现优异的CO-PROX催化反应性能。
以溶胶-凝胶法制得的TiO2和La2O3-TiO2为载体,采用沉积-沉淀法制备了一系列Au催化剂,用于肉桂醛选择性加氢反应,并运用N2 吸附-脱附、X射线衍射、高分辨率透射电镜、程序升温还原和X射线光电子能谱等方法对催化剂进行了表征,系统考察了La2O3含量对Au/TiO2催化剂物化性质和催化性能的影响.结果表明,适La2O3助剂(10%~15%)的掺杂可显著提高Au/TiO2催化剂的加氢活性和肉...
甲醇水蒸汽重整制氢Au/TiO2催化剂
制氢 甲醇水蒸汽重整 Au/TiO2负载型催化剂
2009/11/11
采用沉积-沉淀法制备了一系列Au/TiO2催化剂，考察了Au负载量、焙烧温度以及助剂等因素对甲醇水蒸汽重整制氢反应催化性能的影响；并利用XRD, TEM对催化剂进行了表征. 结果表明，制备条件对催化性能有明显影响；Au负载量为5%(w)时所得催化剂活性较好；助剂NiO可使催化剂催化甲醇水重整的催化活性明显提高；100℃烘干未焙烧制得的催化剂活性最好；TEM结果显示，NiO的加入使载体TiO2颗粒分...
Photocatalytic Methanol Reforming on Au/TiO2 for Hydrogen Production
Photocatalytic Reforming Au/TiO2
2009/7/28
Methanol can be reformed with water, at ambient
temperature, using photocatalysis, and this reaction
represents a possible low energy, more sustainable
pathway to hydrogen production than (for inst...
Preparation of a Monolith-Supported Au/TiO2 Catalyst Active for CO Oxidation
cordierite monolith gold on titania CO oxidation
2009/7/28
The development of a method for making an
adherent coating of Au/TiO2 on a cordierite monolith
is described. The optimum method entails first
forming a wash-coat of TiO2 by combining a colloidal
d...
A Novel Internally Heated Au/TiO2 Carbon-Carbon Composite Structured Reactor for Low- mperature CO Oxidation
Au/TiO2 Carbon-Carbon
2009/7/28
A compact, internally heated, catalytic reactor is
demonstrated for the low-temperature oxidation of
carbon monoxide. Carbon nanofibres were grown
on carbon felt and used as a support material for
...
Properties of TiO2 Support and the Performance of Au/TiO2 Catalyst for CO Oxidation Reaction
gold titanium dioxide carbon monoxide oxidation
2009/7/28
Gold catalysts were prepared on TiO2 supports of
different phase structures (i.e., anatase, rutile and
biphasic), TiO2 crystal size (i.e., 9-23 nm), surface
and textural properties (i.e., hydration...
An unconventional Au/TiO2 PROX system for complete removal of CO from non-reformate hydrogen
Au/TiO2 PROX system CO non-reformate hydrogen
2009/7/28
Au-based catalysts, generally known for high activity
in the selective catalytic oxidation of CO to CO2 at
ambient temperatures, can play a significant role in
increasing the fuel cell system’s CO ...