Synthesis and characterization of alkali metal molybdates with high catalytic activity for dye degradation

RSC Advances ◽  
2016 ◽  
Vol 6 (59) ◽  
pp. 54553-54563 ◽  
Author(s):  
Yili Zhang ◽  
Zhang Zhang ◽  
Tuantuan Zhou ◽  
Peng Lu ◽  
Yanshan Gao ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Alkali Metal ◽  
Dye Degradation ◽  
Cationic Dyes ◽  
Synthesis And Characterization ◽  
High Catalytic Activity ◽  
Ambient Conditions

In this contribution, the synthesis and catalytic activity of alkali metal molybdates for the degradation of cationic dyes under ambient conditions were systematically studied.

Synthesis and characterization of new isostructural series LnFe0.5Sb1.5O6 (Ln = La-Sm) exhibiting high catalytic activity in CO oxidation

2019 ◽  
Vol 777 ◽  
pp. 655-662 ◽  
Author(s):  
A.V. Egorysheva ◽  
O.G. Ellert ◽  
E. Yu Liberman ◽  
D.I. Kirdyankin ◽  
S.V. Golodukhina ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Co Oxidation ◽  
Synthesis And Characterization ◽  
High Catalytic Activity

Synthesis and characterization of alkali-metal aryloxo compounds and their catalytic activity for l-lactide polymerization

Polyhedron ◽  
2011 ◽  
Vol 30 (11) ◽  
pp. 1876-1883 ◽  
Author(s):  
Jie Zhang ◽  
Chao Wang ◽  
Min Lu ◽  
Ying-Ming Yao ◽  
Yong Zhang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Alkali Metal ◽  
Synthesis And Characterization ◽  
Lactide Polymerization

Synthesis and Characterization of High Catalytic Activity Magnetic Fe3O4 Supported Pd Nanocatalyst

2012 ◽  
Vol 26 (1) ◽  
pp. 165-171 ◽  
Author(s):  
Abdulhadi Baykal ◽  
Ebubekir Karaoglu ◽  
Hüseyin Sözeri ◽  
Emre Uysal ◽  
Muhammet S. Toprak
Keyword(s):  
Catalytic Activity ◽  
Synthesis And Characterization ◽  
High Catalytic Activity ◽  
Magnetic Fe3o4 ◽  
Supported Pd

scholarly journals Effective Dye Degradation by Graphene Oxide Supported Manganese Oxide

Processes ◽  
2019 ◽  
Vol 7 (1) ◽  
pp. 40 ◽  
Author(s):  
Hayarpi Saroyan ◽  
George Kyzas ◽  
Eleni Deliyanni
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Surface Chemistry ◽  
Manganese Oxide ◽  
Azo Dye ◽  
Dye Degradation ◽  
High Catalytic Activity ◽  
Reactive Black 5 ◽  
Ambient Conditions ◽  
Nanocomposite Catalyst

Graphene oxide (GO) was used as a support for manganese oxide (MnO2) for the preparation of a nanocomposite catalyst for the degradation of an azo dye, Reactive Black 5 (RB5). The nanocomposite was characterized for the structure by XRD, for the morphology with SEM, and for the surface chemistry with FTIR and potentiometric titration measurements. The GO-MnO2 nanocomposite presented a high catalytic activity for the degradation/oxidation of RB5 at ambient conditions, which was higher than that of the pure MnO2 and could be attributed to the beneficial contribution of the manganese oxide and the graphene oxide.

Ordered Intermetallic Nanoparticles with High Catalytic Activity Prepared by an Electrochemically Induced Phase Transformation

2019 ◽  
Author(s):  
Du Sun ◽  
yunfei wang ◽  
Kenneth Livi ◽  
chuhong wang ◽  
ruichun luo ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Diffusion Mechanism ◽  
Reduction Reaction ◽  
Atomic Scale ◽  
High Catalytic Activity ◽  
Ambient Conditions ◽  
Magnetic Devices ◽  
Disordered Alloys ◽  
Ordered Intermetallic ◽  
Intermetallic Nanoparticles

<div> <p>The synthesis of alloys with long range atomic scale ordering (ordered intermetallics) is an emerging field of nanochemistry. Ordered intermetallic nanoparticles are useful for a wide variety of applications such as catalysis, superconductors, and magnetic devices. However, the preparation of nanostructured ordered intermetallics is challenging in comparison to disordered alloys, hindering progress in materials development. We report a process for converting colloidally synthesized ordered intermetallic PdBi<sub>2</sub> to ordered intermetallic Pd<sub>3</sub>Bi nanoparticles under ambient conditions by an electrochemically induced phase transition. The low melting point of PdBi<sub>2</sub> corresponds to low vacancy formation energies which enables the facile removal of the Bi from the surface, while simultaneously enabling interdiffusion of the constituent atoms via a vacancy diffusion mechanism under ambient conditions. The resulting phase-converted ordered intermetallic Pd<sub>3</sub>Bi exhibits 11x and 3.5x higher mass activty and high methanol tolerance for the oxygen reduction reaction compared to Pt/C and Pd/C, respectively,which is the highest reported for a Pd-based catalyst, to the best of our knowledge. These results establish a key development in the synthesis of noble metal rich ordered intermetallic phases with high catalytic activity, and sets forth guidelines for the design of ordered intermetallic compounds under ambient conditions.</p> </div>

Synthesis and characterization of highly ordered MCM-41 in an alkali-free system and its catalytic activity

1996 ◽  
Vol 38 (1-2) ◽  
pp. 33-37 ◽  
Author(s):  
Xiu S. Zhao ◽  
Gao Q. Lu ◽  
Graeme J. Millar ◽  
Xin S. Li
Keyword(s):  
Catalytic Activity ◽  
Synthesis And Characterization ◽  
Free System ◽  
Mcm 41

Synthesis and characterization of magnetically recyclable Ag nanoparticles immobilized on Fe3O4@C nanospheres with catalytic activity

2015 ◽  
Vol 335 ◽  
pp. 23-28 ◽  
Author(s):  
Wei-hong Li ◽  
Xiu-ping Yue ◽  
Chang-sheng Guo ◽  
Jia-pei Lv ◽  
Si-si Liu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Ag Nanoparticles ◽  
Synthesis And Characterization
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