scholarly journals Facile sub-/supercritical water synthesis of nanoflake MoVTeNbOx-mixed metal oxides without post-heat treatment and their catalytic performance

RSC Advances ◽  
2020 ◽  
Vol 10 (65) ◽  
pp. 39922-39930
Author(s):  
Shuangming Li ◽  
Yongwei Liu ◽  
Yaoxin Fan ◽  
Zixuan Lu ◽  
Yunong Yan ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Acrylic Acid ◽  
Metal Oxides ◽  
Selective Oxidation ◽  
Supercritical Water ◽  
Catalytic Performance ◽  
Mixed Metal Oxides ◽  
Post Heat Treatment ◽  
Mixed Metal ◽  
Excellent Catalytic Performance

Nanoflake MoVTeNbOx prepared by sub-/supercritical water exhibit excellent catalytic performance in the selective oxidation of propylene to acrylic acid.

Solvent-free oxidation of ethylbenzene over hierarchical flower-like core–shell structured Co-based mixed metal oxides with significantly enhanced catalytic performance

2015 ◽  
Vol 5 (1) ◽  
pp. 540-548 ◽  
Author(s):  
Renfeng Xie ◽  
Guoli Fan ◽  
Lan Yang ◽  
Feng Li
Keyword(s):  
Metal Oxides ◽  
Catalytic Performance ◽  
Solvent Free ◽  
Core Shell ◽  
Mixed Metal Oxides ◽  
Mixed Metal ◽  
Oxidation Of Ethylbenzene ◽  
Free Oxidation ◽  
Excellent Catalytic Performance

Hierarchical flower-like core–shell structured Co-based mixed metal oxides exhibited excellent catalytic performance in solvent-free oxidation of ethylbenzene.

scholarly journals Mixed Metal Oxides of M1 MoVNbTeOx and TiO2 as Composite Catalyst for Oxidative Dehydrogenation of Ethane

Catalysts ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 71
Author(s):  
Yuxin Chen ◽  
Dan Dang ◽  
Binhang Yan ◽  
Yi Cheng
Keyword(s):  
Metal Oxides ◽  
Oxidative Dehydrogenation ◽  
Sol Gel ◽  
Catalytic Performance ◽  
Mixed Metal Oxides ◽  
Gel Method ◽  
Mixed Metal ◽  
Sol Gel Method ◽  
Composite Catalysts ◽  
Oxidative Dehydrogenation Of Ethane

Composite catalysts of mixed metal oxides were prepared by mixing a phase-pure M1 MoVNbTeOx with anatase-phase TiO2. Two methods were used to prepare the composite catalysts (the simple physically mixed or sol-gel method) for the improvement of the catalytic performance in the oxidative dehydrogenation of ethane (ODHE) process. The results showed that TiO2 particles with a smaller particle size were well dispersed on the M1 surface for the sol-gel method, which presented an excellent activity for ODHE. At the same operating condition (i.e., the contact time of 7.55 gcat·h/molC2H6 and the reaction temperature of 400 °C), the M1-TiO2-SM and M1-TiO2-PM achieved the space time yields of 0.67 and 0.52 kgC2H4/kgcat/h, respectively, which were about ~76% and ~35% more than that of M1 catalyst (0.38 kgC2H4/kgcat/h), respectively. The BET, ICP, XRD, TEM, SEM, H2-TPR, C2H6-TPSR, and XPS techniques were applied to characterize the catalysts. It was noted that the introduction of TiO2 raised the V5+ abundance on the catalyst surface as well as the reactivity of active oxygen species, which made contribution to the promotion of the catalytic performance. The surface morphology and crystal structure of used catalysts of either M1-TiO2-SM or M1-TiO2-PM remained stable as each fresh catalyst after 24 h time-on-stream tests.

scholarly journals Effect of Ce doping on the structure–activity relationship of MoVOx composite metal oxides

RSC Advances ◽  
2021 ◽  
Vol 11 (57) ◽  
pp. 36007-36015
Author(s):  
Luyao Deng ◽  
Shuangming Li ◽  
Yongwei Liu ◽  
Zixuan Lu ◽  
Yaoxin Fan ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Benzyl Alcohol ◽  
Selective Oxidation ◽  
Catalytic Performance ◽  
Structure Activity Relationship ◽  
Activity Relationship ◽  
Structure Activity ◽  
Oxidation Of Benzyl Alcohol ◽  
Relationship Of ◽  
Excellent Catalytic Performance

Ce-doped MoVOx with disperse rod-shaped exhibits excellent catalytic performance in selective oxidation of benzyl alcohol.

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