Two new estertin modified tungstosilicates: synthesis, catalytic activity and photoelectrochemical property

2020 ◽  
Vol 49 (21) ◽  
pp. 7234-7244 ◽  
Author(s):  
Yao Zhang ◽  
Meng-Xuan Li ◽  
Qiang Hao ◽  
Fang Su ◽  
Zai-Ming Zhu ◽  
...  

Two estertin functionalized tungstosilicates were synthesized and analyzed by DFT. They exhibit good photoelectrocatalytic performance for oxidation of methanol.

2015 ◽  
Vol 3 (5) ◽  
pp. 2050-2056 ◽  
Author(s):  
Xuefeng Zhang ◽  
Pengfei Guan ◽  
Lidija Malic ◽  
Michel Trudeau ◽  
Federico Rosei ◽  
...  

Nanoporous composition-tunable PtPd catalysts, combining with a high density of twin boundaries and atomic-scale Pt–Pd interfaces, can be synthesized by a simple thermal-decomposition strategy. The most optimized PtPd represents the superior overall performance high catalytic activity and stability in the electrochemical oxidation of methanol.


2015 ◽  
Vol 33 ◽  
pp. 150-157 ◽  
Author(s):  
Xiao Ya Jia ◽  
Jian Wei Zhao ◽  
Li Rong Qin ◽  
Cai Feng Yang

We report a facile synthesis of PtNi nanosheets on the flexible ITO/PET substrate by electrochemical deposition method. The morphology and composition of the PtNi nanosheets were characterized and it was revealed that the PtNi nanosheets were polycrystalline with a thickness of about 4 nm. The average Ni content in the nanosheets was about 10 at%. The results of the electrochemical measurements showed that the PtNi nanosheets have excellent catalytic activity and stability toward the electro-oxidation of methanol in alkaline medium, which making it more attractive for fuel cell applications.


1976 ◽  
Vol 7 (46) ◽  
pp. no-no
Author(s):  
R. MALINSKI ◽  
M. AKIMOTO ◽  
E. ECHIGOYA

Langmuir ◽  
2009 ◽  
Vol 25 (12) ◽  
pp. 7140-7147 ◽  
Author(s):  
Choong Kyun Rhee ◽  
Byung-Jun Kim ◽  
Chulho Ham ◽  
Youn-Joong Kim ◽  
Kyung Song ◽  
...  

2012 ◽  
Vol 293 ◽  
pp. 149-157 ◽  
Author(s):  
A. de Lucas-Consuegra ◽  
J. González-Cobos ◽  
Y. García-Rodríguez ◽  
A. Mosquera ◽  
J.L. Endrino ◽  
...  

2007 ◽  
Vol 7 (11) ◽  
pp. 4073-4076 ◽  
Author(s):  
Ki-Joong Kim ◽  
Yong-Hwa Kim ◽  
Woon-Jo Jeong ◽  
Seung-Won Jeong ◽  
Jong-Che Park ◽  
...  

The alloy catalyst has been widely used because it will be able to improve the activity and selectivity of the single metal catalyst in a given chemical reaction. In this study, the preparation and characteristics of nanosized Pt and Au particles on alumina and their catalytic activity were described. Nanosized Pt–Au catalysts were prepared by impregnation (IMP) method and deposition (DP) method using alumina or ZnO/Al2O3 as support. The size of Pt and Au particles were observed by transmission electron microscopy (TEM), energy dispersive spectroscope (EDS), and X-ray diffraction (XRD). Catalytic activity for oxidation of methanol was measured using a flow reactor. It could be seen that the Pt particle size and dispersion in the alloy catalysts was rarely influenced by preparation methods and Au particles coated by deposition method were well dispersed. TEM images showed that Au particles were well dispersed in the Pt/Au/ZnO/Al2O3 catalyst of which Au particles was supported by deposition method. The catalytic activity for methanol are given in the order of Pt-Au[IMP]/ZnO/Al2O3 > Pt[IMP]/Au[DP]/ZnO/Al2O3 > Au[DP]/Pt[IMP]/ZnO/Al2O3 > Pt-Au[DP]/ZnO/Al2O3. Therefore, Au particle size was doing not play an important role in increasing the oxidation activity, but the Au particles may promote the methanol oxidation.


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