Mechanistic insights for enhancing activity and stability of Nb-incorporated silicates for selective ethylene epoxidation
Wenjuan Yan,Anand Ramanathan,Pansy D. Patel,Swarup K. Maiti,Brian B. Laird,Ward H. Thompson,Bala Subramaniam +6 more
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TLDR
Significant ethylene epoxidation activity was observed over niobium (Nb) incorporated mesoporous silicate materials Nb-KIT-5, NbMCM-48, and NbTUD-1, with hydrogen peroxide (H2O2) as oxidant and methanol (MeOH) as solvent under mild operating conditions (35°C and 50 ¼ bar) as mentioned in this paper.About:
This article is published in Journal of Catalysis.The article was published on 2016-04-01 and is currently open access. It has received 43 citations till now. The article focuses on the topics: Mesoporous silicate & Ethylene oxide.read more
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Toward understanding the unusual reactivity of mesoporous niobium silicates in epoxidation of CC bonds with hydrogen peroxide
Irina D. Ivanchikova,Igor Yu. Skobelev,Nataliya V. Maksimchuk,Eugenii A. Paukshtis,M. V. Shashkov,Oxana A. Kholdeeva +5 more
TL;DR: In this paper, a kinetic and mechanistic investigation of two representative substrates, cyclooctene (CyO) and 2-methyl-1,4-naphthoquinone (MNQ), over two mesoporous niobium silicates with predominantly di(oligo)meric or isolated Nb(V) sites was performed.
Journal ArticleDOI
ZnTa-TUD-1 as an easily prepared, highly efficient catalyst for the selective conversion of ethanol to 1,3-butadiene
TL;DR: In this article, high performances in the conversion of ethanol to 1,3-butadiene were achieved with a Zn(II) and Ta(V) catalyst supported on TUD-1, a mesoporous silica.
Journal ArticleDOI
Identifying Catalytically Active Mononuclear Peroxoniobate Anion of Ionic Liquids in the Epoxidation of Olefins
Wenbao Ma,Haiyang Yuan,Haifeng Wang,Qingqing Zhou,Kang Kong,Difan Li,Yefeng Yao,Zhenshan Hou +7 more
TL;DR: In this paper, the organic carboxylic acid coordinated monomeric peroxoniobate-based ionic liquids (ILs) [TBA][NbO(OH)2(R)] (TBA = tetrabutylammonium; R = lactic acid (LA), glycolic acid (GLY), malic acid(MA)) were prepared and fully characterized by elemental analysis, NMR, IR, Raman, TGA, 93Nb NMR and HRMS.
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Catalytic conversion of CO2 and shale gas-derived substrates into saturated carbonates and derivatives: Catalyst design, performances and reaction mechanism
Xin Jin,Jie Ding,Qi Xia,Guangyu Zhang,Chaohe Yang,Jian Shen,Bala Subramaniam,Raghunath V. Chaudhari +7 more
TL;DR: In this paper, the key strategies for rational design of homogeneous and heterogeneous catalytic materials with comprehensive and critical discussion on catalyst synthesis, structures and plausible reaction mechanisms based on the work in the past 5 years are presented.
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Liquid-Phase Epoxidation of Light Olefins over W and Nb Nanocatalysts
TL;DR: In this article, the authors reviewed the recent research progress on heterogeneous W and Nb nanocatalysts for facile liquid-phase epoxidation and provided insights into fundamental understanding on novel nano-catalytic chemistry and improving activity, selectivity, and stability.
References
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