rhodium, RhBiVO4–SrTiO3:Rh composites in which the Rh-doped SrTiO3particles of a H2-evolving photocatalyst attached on the BiVO4particles of an O2-evolving photocatalyst were prepared by an impregnation method and a liquid–solid state reaction. The composites showed photocatalytic activity for Z...
(1) 与纳米粒子结构催化剂对比,发现这种空心SrTiO3:La/Rh催化剂的光电流增强、光催化制氢性能改善、同时量子效率得以提高。 (2) 通过将空心SrTiO3:La/Rh、BiVO4纳米片结合成Z型结构,同时加入Pt作为助催化剂,在可见光、模拟自然光光照条件中都实现了稳定的制氢/制氧性能。光能转化为氢能量的效率达到0.08 %,这个...
Rh-SrTiO3因其导带位置较负一直被作为一种光催化析氢材料来研究,但是其价带位置很显然要正于 1.23V,也足够来进行水的氧化反应,但是却鲜少有工作专门对 Rh-SrTiO3的光电化学析氧助催化特性进行研究。而且有文献表明 Rh-SrTiO3中 Rh 更倾向于以 +4 价形式取代 Ti 位,所以 Rh-SrTiO3具有裂解水析氧助催化的可...
BiVO4–SrTiO3:Rh composites in which the Rh-doped SrTiO3particles of a H2-evolving photocatalyst attached on the BiVO4particles of an O2-evolving photocatalyst were prepared by an impregnation method and a liquid–solid state reaction. The composites showed photocatalytic activity for Z-schematic wa...
近期,西安电子科技大学微电子学院敖金平、补钰煜课题组的张亚萍博士制备了 BiVO4/Rh-SrTiO3系列复合光阳极,并针对 Rh-SrTiO3特殊的光电化学析氧助催化特性进行了研究,相关研究发表在 Advanced Functional Materials 上。在该复合体系中,BiVO4作为光...
近期,西安电子科技大学微电子学院敖金平、补钰煜课题组的张亚萍博士制备了 BiVO4/Rh-SrTiO3系列复合光阳极,并针对 Rh-SrTiO3特殊的光电化学析氧助催化特性进行了研究,相关研究发表在 Advanced Functional Materials 上。在该复合体系中,BiVO4作为光阳极的光吸收层,作为光生自由载流子的产生层,而 Rh-SrTiO3超薄层包覆在...
Photocatalytic hydrogen production from ethanol as an example of biofuel is studied over 0.5 wt% Rh/SrTiO 3 and 0.5 wt% Pt/SrTiO 3 perovskite materials. The rate of hydrogen production, r H2 , over Pt/SrTiO 3 is found to be far higher than that observed over Rh/SrTiO 3 (4×10 6 mol...
Iwashina K,Kudo A.Rh-doped SrTiO3 photocatalyst electrode showing cathodic photocurrent for water splitting under visible-light irradiation.Journal of the American Chemical Society. 2011K. Iwashina and A. Kudo, "Rh-Doped SrTiO3 Photocatalyst Electrode Showing Cathodic Photocurrent for Water Splitting ...
紫外-可见漫反射(DRS)显示Rh掺杂后可以使SrTiO3的吸收达到540 nm.X射线衍射扫描电镜结果显示溶胶-凝胶法制备SrTiO3:Rh不仅具有高的结晶度而且具有较小的粒径(对应于大的比表面积)从而具有较高的活性.当Rh的负载量为2%(质量分数),焙烧温度为900℃,光催化材料具有最高的活性,产氢速率为289.0μmol/h,420 nm的...
SrTiO3:RhdirectlymodifiedwithSnPdbimetal.Fromanalysisofthereactionmechanism,hydrogenformedbyphotoreductionofwateroverPt/SrTiO3:Rhactedasthereductantforanon-photocatalyticnitrateconversionreactionoverSnPd/Al2O3.Moreover,theproducts,includingformaldehydeandformicacid,formedbyphoto-oxidationofmethanoloverPt/SrTiO3:Rh...