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“表面光化学动力学研究”2013年度报告

2017-03-13杨学明王兵朱俊发任泽峰

科技创新导报 2016年26期
关键词:产氢能源

杨学明++王兵++朱俊发++任泽峰

摘 要:隨着有限的化石能源逐渐消耗,人类生存环境的不断恶化,发展清洁、可靠的能源是关系到人类社会发展和国家经济安全的重大问题,各国在新能源科学技术和能源经济方面的竞争是不可避免的。无论是洁净能源的发展还是现有化石能源的优化利用,都无可避免地依赖于有效的表面催化剂发展。因此,开展与能源相关的界面化学动力学研究是非常必要的。该年度主要针对TiO2表面光催化产氢、生物质合成化学动力学,TiO2本身的性质(如缺陷钛来源、TiO2表面活性位点、反应发生的驱动力)以及功能纳米催化材料和薄膜制备研究等方面开展了研究工作。在TiO2表面光催化产氢、生物质合成化学动力学等研究方面,课题组将利用高灵敏度质谱仪去研究TiO2(110)表面产氢,TiO2(110)表面以甲醇作为前驱物合成甲酸甲酯。在TiO2本身的性质(如缺陷钛来源,不同类型TiO2表面活性位点)和功能纳米催化材料和薄膜制备研究方面,课题组利用高灵敏度质谱仪、双光子光电子能谱技术以及扫描隧道显微镜技术,对TiO2如缺陷钛来源、不同类型TiO2表面活性位点、功能纳米催化材料和薄膜制备等问题开展了深入的探索。

关键词:能源 产氢 生物质合成 TiO2 化学动力学 活性位

Annual Report of Surface Photochemical Kinetics Research 2013

Yang Xueming1 Wang Bing2 Zhu Junfa2 Ren Zefeng3

(1.Dalian Institute of Chemical Physics, Chinese Academy of Sciences; 2. University o fScienceand Technology of China;

3.Peking University)

Abstract:As the gradual depletion of finite fossil energy, and the worsening of the human environment, the development of clean, reliable energy becomes a very important issue which is related to human being and national economic security. Now, the development of clean energy and the optimal use of existing fossil fuels are strongly dependent on the development of effective catalyst. Therefore, it is very necessary to study the energy-related chemical kinetics on surfaces and interfaces. In this year, our research focuses on photocatalytic hydrogen production, biomass synthesis with TiO2(110) surface, the nature of TiO2 (such as the origin of the defect states, the active sites of different types of TiO2), functional nano-materials and thin films. For the first topic, we use a high sensitivity mass spectrometer to study photo catalytic hydrogen production and biomass synthesis with a precursor of methanol on the TiO2(110) surface. In studies of the nature of TiO2 (such as the origin of the defect states, the active sites of TiO2, and the driven force for reactions on surfaces), functional nano-materials and thin films, high sensitivity mass spectrometer, two-photon photoemission spectroscopy technique and scanning tunneling microscopy techniques are involved to study this issue. In 2013, we published over 15 papers on famous SCI journals in related fields, such as Journal of the American Chemical Society, Nanoscale, Journal of Chemical Physics Letters, Journal of Physical Chemistry C, Carbon, and finished the planned research targets.

Key Words:Energy; Hydrogen production; Biomass synthesis; TiO2; Chemical Kinetics; Active sites

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