Hydrogen-treated mesoporous WO3 as a reducing agent of CO2 to fuels (CH4 and CH3OH) with enhanced photothermal catalytic performance

2016 ◽  
Vol 4 (14) ◽  
pp. 5314-5322 ◽  
Author(s):  
Lichao Wang ◽  
Yu Wang ◽  
Yao Cheng ◽  
Zhifu Liu ◽  
Qiangsheng Guo ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Hydrothermal Method ◽  
Catalytic Performance ◽  
Reducing Agent ◽  
Silicotungstic Acid ◽  
Hard Template

A series of mesoporous WO3 catalysts were facilely synthesized by a hydrothermal method using mesoporous silica KIT-6 as a hard template and silicotungstic acid as a precursor.

Design, synthesis and catalytic performance of vanadium-incorporated mesoporous silica KIT-6 catalysts for the oxidative dehydrogenation of propane to propylene

2016 ◽  
Vol 6 (15) ◽  
pp. 5927-5941 ◽  
Author(s):  
Qinglong Liu ◽  
Jianmei Li ◽  
Zhen Zhao ◽  
Manglai Gao ◽  
Lian Kong ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Hydrothermal Method ◽  
Oxidative Dehydrogenation ◽  
Catalytic Performance ◽  
Oxidative Dehydrogenation Of Propane ◽  
Design Synthesis ◽  
Method Show

The vanadium-incorporated KIT-6 catalysts synthesized by combining a direct hydrothermal method with a pH adjusting method show superior catalytic performance in the oxidative dehydrogenation of propane to propylene.

Positive Role of Synthesis Method and Hard Template on the Catalytic Performance of SAPO-34 in Methanol to Olefin Reaction.

2020 ◽  
Vol 23 ◽  
Author(s):  
Sajjad Rimaz ◽  
Reza Katal
Keyword(s):  
Particle Size ◽  
Synthesis Method ◽  
Catalytic Performance ◽  
Hard Template ◽  
Structure Directing Agent ◽  
Positive Role ◽  
Methanol To Olefin ◽  
Dg Method ◽  
Synthesis Procedure

: In the present study, SAPO-34 particles were synthesized using hydrothermal (HT) and dry gel (DG) conversion methods in the presence of diethyl amine (DEA) as an organic structure directing agent (SDA). Carbon nanotubes (CNT) were used as hard template in the synthesis procedure to introduce transport pores into the structures of the synthesized samples. The synthesized samples were characterized with different methods to reveal effects of synthesis method and using hard template on their structure and catalytic performance in methanol to olefin reaction (MTO). DG conversion method results in smaller particle size in comparison with hydrothermal method, resulting in enhancing catalytic performance. On the other side, using CNT in the synthesis procedure with DG method results in more reduction in particle size and formation of hierarchical structure which drastically improves catalytic performance.

A soft–hard template approach towards hollow mesoporous silica nanoparticles with rough surfaces for controlled drug delivery and protein adsorption

2015 ◽  
Vol 3 (31) ◽  
pp. 6480-6489 ◽  
Author(s):  
Haijiao Zhang ◽  
Huijuan Xu ◽  
Minghong Wu ◽  
Yufang Zhong ◽  
Donghai Wang ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Protein Adsorption ◽  
Rough Surfaces ◽  
Mesoporous Silica Nanoparticles ◽  
Controlled Drug Delivery ◽  
Hard Template ◽  
Hollow Mesoporous Silica

Novel hollow mesoporous silica nanoparticles (HMSNs) with rough surfaces have been successfully prepared using a facile soft–hard template route.

scholarly journals Ultra-Small Pd(0) Nanoparticles into a Designed Semisynthetic Lipase: An Efficient and Recyclable Heterogeneous Biohybrid Catalyst for the Heck Reaction under Mild Conditions

Molecules ◽  
2018 ◽  
Vol 23 (9) ◽  
pp. 2358 ◽  
Author(s):  
David Lopez-Tejedor ◽  
Blanca de las Rivas ◽  
Jose M. Palomo
Keyword(s):  
Catalytic Activity ◽  
Protein Structure ◽  
Heck Reaction ◽  
Catalytic Performance ◽  
Reducing Agent ◽  
Chemically Modified ◽  
Mild Conditions ◽  
In Situ Formation ◽  
Geobacillus Thermocatenulatus

A novel heterogeneous enzyme-palladium (Pd) (0) nanoparticles (PdNPs) bionanohybrid has been synthesized by an efficient, green, and straightforward methodology. A designed Geobacillus thermocatenulatus lipase (GTL) variant genetically and then chemically modified by the introduction of a tailor-made cysteine-containing complementary peptide- was used as the stabilizing and reducing agent for the in situ formation of ultra-small PdNPs nanoparticles embedded on the protein structure. This bionanohybrid was an excellent catalyst in the synthesis of trans-ethyl cinnamate by Heck reaction at 65 °C. It showed the best catalytic performance in dimethylformamide (DMF) containing 10–25% of water as a solvent but was also able to catalyze the reaction in pure DMF or with a higher amount of water as co-solvent. The recyclability and stability were excellent, maintaining more than 90% of catalytic activity after five cycles of use.

Facile synthesis and catalytic performance of Co3O4nanosheets in situ formed on reduced graphene oxide modified Ni foam

2017 ◽  
Vol 46 (40) ◽  
pp. 13845-13853 ◽  
Author(s):  
Congying Song ◽  
Xianzhi Yin ◽  
Biaopeng Li ◽  
Ke Ye ◽  
Kai Zhu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Hydrothermal Method ◽  
Reduced Graphene Oxide ◽  
Three Dimensional ◽  
Catalytic Performance ◽  
Ni Foam ◽  
Facile Synthesis ◽  
Reduced Graphene ◽  
Catalyst Electrode

A three-dimensional (3D) catalyst electrode of Co3O4nanosheetsin situformed on reduced graphene oxide modified Ni foam (Co3O4/rGO@Ni foam) for H2O2electroreduction is prepared by a two-step hydrothermal method.

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