The effect of Ce ion substituted OMS-2 nanostructure in catalytic activity for benzene oxidation

Nanoscale ◽  
2014 ◽  
Vol 6 (24) ◽  
pp. 15048-15058 ◽  
Author(s):  
Jingtao Hou ◽  
Yuanzhi Li ◽  
Mingyang Mao ◽  
Xiujian Zhao ◽  
Yuanzheng Yue
2005 ◽  
Vol 280 (2) ◽  
pp. 125-131 ◽  
Author(s):  
Hyoung Sik Kim ◽  
Tae Won Kim ◽  
Hyoung Lim Koh ◽  
Seo Ho Lee ◽  
Byoung Ryul Min

2019 ◽  
Vol 469 ◽  
pp. 118-130 ◽  
Author(s):  
Tareque Odoom-Wubah ◽  
Qun Li ◽  
Qiang Wang ◽  
Most Zubaida Rukhsana Usha ◽  
Jiale Huang ◽  
...  

Chemosphere ◽  
2020 ◽  
Vol 250 ◽  
pp. 126211 ◽  
Author(s):  
Chunlan Ni ◽  
Jingtao Hou ◽  
Lei Li ◽  
Yuanzhi Li ◽  
Mingxia Wang ◽  
...  

Nanomaterials ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 197 ◽  
Author(s):  
Min Yang ◽  
Genli Shen ◽  
Mi Liu ◽  
Yunfa Chen ◽  
Zhen Wang ◽  
...  

The catalytic activities of CeO2-MnOx composite oxides synthesized through oxalate method were researched. The results exhibited that the catalytic properties of CeO2-MnOx composite oxides were higher than pure CeO2 or MnOx. When the Ceat/Mnat ratio was 3:7, the catalytic activity reached the best. In addition, the activities of CeO2-MnOx synthesized through different routes over benzene oxidation were also comparative researched. The result indicated that the catalytic property of sample prepared by oxalate method was better than others, which maybe closely related with their meso-structures. Meanwhile, the effects of synergistic interaction and oxygen species in the samples on the catalytic ability can’t be ignored.


2013 ◽  
Vol 47 (23) ◽  
pp. 13730-13736 ◽  
Author(s):  
Jingtao Hou ◽  
Liangliang Liu ◽  
Yuanzhi Li ◽  
Mingyang Mao ◽  
Haiqin Lv ◽  
...  

Catalysts ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1316
Author(s):  
Lyuba Ilieva ◽  
Petya Petrova ◽  
Anna Maria Venezia ◽  
Elena Maria Anghel ◽  
Razvan State ◽  
...  

Considerable efforts to reduce the harmful emissions of volatile organic compounds (VOCs) have been directed towards the development of highly active and economically viable catalytic materials for complete hydrocarbon oxidation. The present study is focused on the complete benzene oxidation as a probe reaction for VOCs abatement over Co3O4-CeO2 mixed oxides (20, 30, and 40 wt.% of ceria) synthesized by the more sustainable, in terms of less waste, less energy and less hazard, mechanochemical mixing of cerium hydroxide and cobalt hydroxycarbonate precursors. The catalysts were characterized by BET, powder XRD, H2-TPR, UV resonance Raman spectroscopy, and XPS techniques. The mixed oxides exhibited superior catalytic activity in comparison with Co3O4, thus, confirming the promotional role of ceria. The close interaction between Co3O4 and CeO2 phases, induced by mechanochemical treatment, led to strained Co3O4 and CeO2 surface structures. The most significant surface defectiveness was attained for 70 wt.% Co3O4-30 wt.% CeO2. A trend of the highest surface amount of Co3+, Ce3+ and adsorbed oxygen species was evidenced for the sample with this optimal composition. The catalyst exhibited the best performance and 100% benzene conversion was reached at 200 °C (relatively low temperature for noble metal-free oxide catalysts). The catalytic activity at 200 °C was stable without any products of incomplete benzene oxidation. The results showed promising catalytic properties for effective VOCs elimination over low-cost Co3O4-CeO2 mixed oxides synthesized by simple and eco-friendly mechanochemical mixing.


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