催化湿式氧化贵金属催化剂有机酸废水以纳米TiO2为载体,通过优化制备方法,合成了高活性的Ru/TiO2贵金属催化剂,采用X射线衍射(XRD),N2物理吸附,程序升温还原(H2-TPR)和透射电镜(TEM)等手段对催化剂进行表征,并将制备的催化剂应用到湿式氧化处理3种有机酸模拟废水中.研究表明,氢气还原有助于Ru在TiO2表面的分散,由此...
[TpRu(PPh3)2(H2O)]BF4水合钌配合物 TpRu(PPh)(CHCN)(OH)单氢钌配合物 TpRu(PPh)(CHCN)(OCHCF) TpRu(PPh3)(CH3CN)H TpRu(PPh3)(CH3CN)(OH) RuH((R,R)-PhCHNH2CHNH2Ph)(PPh3)2Cl配合物 TpRu(PPh3)(CH3CN)(OCH2CF3) Ru(PPh3)3HCl ...
The Ru-Ti oxide based catalysts were characterized by XRD, N2 sorption, SEM, TEM, H2-TPR, XPS, and Raman, which is correlated with the catalytic tests. Rutile TiO2 was confirmed as the optimal support even though it has a low specific surface area. In addition to the interfacial epitaxial...
尽管采用TPR方法来考察催化剂表面的活性组分的分散状态不够全面,但是考虑到在催化剂Ru/TiO2表面的活性物种为Ru的氧化物形式,因此采用该法定性地研究催化剂表面[RuO]物种的分布是可行的。这是因为,虽然已有研究者采用H2和CO的化学吸附方法来研究应用于CWAO反应中的担载型Ru催化剂的分散度[16,17],但是在表征过程中催...
硫化物/Ru(Ⅱ)结合物复合敏化TiO2纳米多孔膜 PbS/RuL2(NCS)2复合敏化SnO2纳米多孔膜 2,2'-联吡啶钌配合物RuCl3(2,2'-bipy)(CH3OH) 咪唑并邻菲咯啉类配体的钌配合物 Ru(bpy)2L2+ Ru(phen)2L2+ 钌配合物离子[Ru(H2Bzimpy)2]2+ 三联吡啶钌磺基苯甲酸配合物,[Ru(2,2'-bipy)](3-Hsb)(3-sb)...
以Ru为活性组分,碱金属氧化物K2O和Li2O为助剂,采用浸渍法制备Ru/γ-Al2O3、Ru1K10Oy/Al2O3和Ru1Li10Oy/Al2O3催化剂,对制备的催化剂进行TPR、XRD和SEM表征,采用固定床石英反应器考察催化剂的CO氧化性能。结果表明,碱金属助剂的引入对Ru/γ-Al2O3的催化性能有一定影响,K2O和Li2O的掺杂,显著降低Ru/...
Pd/CeO2–TiO2 catalyst for CO oxidation at low temperature: A TPR study with H2 and CO as reducing agents. J. Catal. 2004, 225, 267–277. [CrossRef] 39. Jen, H.W.; Graham, G.W.; Chun, W.; McCabe, R.W.; Cuif, J.P.; Deutsch, S.E.; Touret, O. Characterization of ...
The amount of H2 consumed in the H2-TPR experiments has been quantified using CuO as reference material. The surface of the catalysts was studied by X-ray photoelectron spectroscopy (XPS) performed in a K-ALPHA Thermo Scientific device. Al-Kα radiation (1486.6 eV) was used as X-ray ...
·2H_2O (Ru1) ;Ru(Ⅱ)配合物功能化的有机-无机杂化材料Ru-pyttz-MCM-41;Ru(Ⅱ)配合物[Ru(bpy)2(hedppc)](ClO4)2;其Ru(Ⅱ)配合物[Ru(L1)3]\[Ru(L2)3]和[Ru(L3)3];硫化镉/Ru(Ⅱ)配合物复合敏化ZnO纳米晶多孔膜;硫化物/Ru(Ⅱ)结合物复合敏化TiO2纳米多孔膜;PbS/RuL2(NCS)2复合敏化SnO2...
摘要:分别以SiO2、γ-Al2O3和TiO2为载体,偏钨酸铵为WO3前驱体,等体积浸渍法制得WO3质量分数为12%的WO3/SiO2、WO3/γ-Al2O3和WO3/TiO2三种催化剂,考察了环己醇脱水制备环己烯的催化剂活性和选择性。采用X射线衍射、N2吸附、NH3程序升温脱附和CO2程序升温脱附等手段对催化剂进行表征,并与催化活性、选择性及稳...