High-Density Formation of Metal/Oxide Interfacial Catalytic Active Sites through Hybrid Clustering

2021 ◽  
Author(s):  
Shun Hayashi ◽  
Tetsuya Shishido
Keyword(s):  
Metal Oxide ◽  
Active Sites ◽  
High Density ◽  
Hybrid Clustering ◽  
Catalytic Active Sites

scholarly journals A Combined Computational and Experimental Study of Methane Activation during Oxidative Coupling of Methane (OCM) by Surface Metal Oxide Catalysts

2021 ◽  
Author(s):  
Daniyal Kiani ◽  
Sagar Sourav ◽  
Jonas Baltrusaitis ◽  
Israel E Wachs
Keyword(s):  
Experimental Study ◽  
Metal Oxide ◽  
Oxidative Coupling ◽  
Active Sites ◽  
Computational Models ◽  
Oxidative Coupling Of Methane ◽  
Catalytic Active Sites ◽  
Surface Metal ◽  
Heterolytic Dissociation ◽  
First Time

The experimentally validated computational models developed herein, for the first time, show that Mn-promotion does not enhance the activity of the surface Na2WO4 catalytic active sites for CH4 heterolytic dissociation...

ChemInform Abstract: Au-metal Oxide Support Interface as Catalytic Active Sites

ChemInform ◽  
2013 ◽  
Vol 44 (50) ◽  
pp. no-no
Author(s):  
Yi Y. Wu ◽  
Neema A. Mashayekhi ◽  
Harold H. Kung
Keyword(s):  
Metal Oxide ◽  
Active Sites ◽  
Oxide Support ◽  
Metal Oxide Support ◽  
Catalytic Active Sites

Au–metal oxide support interface as catalytic active sites

2013 ◽  
Vol 3 (11) ◽  
pp. 2881 ◽  
Author(s):  
Yi Y. Wu ◽  
Neema A. Mashayekhi ◽  
Harold H. Kung
Keyword(s):  
Metal Oxide ◽  
Active Sites ◽  
Oxide Support ◽  
Metal Oxide Support ◽  
Catalytic Active Sites

scholarly journals Facile Synthesis of Uniform Mesoporous Nb2O5 Micro-Flowers for Enhancing Photodegradation of Methyl Orange

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3783
Author(s):  
Jian-Qing Qiu ◽  
Huan-Qing Xie ◽  
Ya-Hao Wang ◽  
Lan Yu ◽  
Fang-Yuan Wang ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Active Sites ◽  
High Performance ◽  
Diffuse Reflectance Spectroscopy ◽  
X Ray Diffraction ◽  
Flower Structure ◽  
Electron Microscopies ◽  
Bet Method ◽  
One Step ◽  
Catalytic Active Sites

The removal of organic pollutants using green environmental photocatalytic degradation techniques urgently need high-performance catalysts. In this work, a facile one-step hydrothermal technique has been successfully applied to synthesize a Nb2O5 photocatalyst with uniform micro-flower structure for the degradation of methyl orange (MO) under UV irradiation. These nanocatalysts are characterized by transmission and scanning electron microscopies (TEM and SEM), X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) method, and UV-Vis diffuse reflectance spectroscopy (DRS). It is found that the prepared Nb2O5 micro-flowers presents a good crystal phases and consist of 3D hierarchical nanosheets with 400–500 nm in diameter. The surface area is as large as 48.6 m2 g−1. Importantly, the Nb2O5 micro-flowers exhibit superior catalytic activity up to 99.9% for the photodegradation of MO within 20 mins, which is about 60-fold and 4-fold larger than that of without catalysts (W/O) and commercial TiO2 (P25) sample, respectively. This excellent performance may be attributed to 3D porous structure with abundant catalytic active sites.

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