Al(CH3)3-promoted Pt/MCM-41 catalysts for tetralin hydrogenation in the presence of benzothiophene and promotion mechanism of Al-promoted Pt/MCM-41 catalysts

RSC Advances ◽  
2015 ◽  
Vol 5 (53) ◽  
pp. 42468-42476 ◽  
Author(s):  
Mingjian Luo ◽  
Qingfa Wang ◽  
Xiangwen Zhang ◽  
Li Wang ◽  
Bing Hu
Keyword(s):  
Sulfur Tolerance ◽  
Promotion Mechanism ◽  
Platinum Dispersion ◽  
Mcm 41

High platinum dispersion benefits tetralin hydrogenation and sulfur tolerance. Sulfur tolerance is also favourable for electron deficient Ptδ+.

AlCl3-promoted MCM-41-supported platinum catalysts with high activity and sulfur-tolerance for tetralin hydrogenation: Effect of Pt–Al interaction

2013 ◽  
Vol 35 ◽  
pp. 6-10 ◽  
Author(s):  
Mingjian Luo ◽  
Qingfa Wang ◽  
Guozhu Li ◽  
Xiangwen Zhang ◽  
Li Wang ◽  
...  
Keyword(s):  
High Activity ◽  
Platinum Catalysts ◽  
Sulfur Tolerance ◽  
Supported Platinum ◽  
Supported Platinum Catalysts ◽  
Hydrogenation Effect ◽  
Mcm 41

Design and Synthesis a Novel Supported Pd-Pt Mesoporous Composite as Catalysts for the Polyaromatic Hydrogenation

2014 ◽  
Vol 881-883 ◽  
pp. 260-266
Author(s):  
Wei Qiang Wang ◽  
Hai Juan Zhang ◽  
Ming Wu
Keyword(s):  
Pt Catalyst ◽  
Beta Zeolite ◽  
Metal Catalyst ◽  
Sulfur Tolerance ◽  
Mesoporous Composite ◽  
Design And Synthesis ◽  
Key Factor ◽  
Synthesized Materials ◽  
Tubular Morphology ◽  
Mcm 41

Hydrothermally stable mesoporous aluminosilicates with tubular morphology and hexagonal nanochannels were prepared by a new route. The route is different from conversational method of highly ordered MCM-41 assembled from Beta zeolite seed colloidal. The synthesis of Beta zeolite-like seeds is a novel route of acid treatment. The XRD results indicated that the synthesized materials were well-ordered hexagonal mesostructures of MCM-41. The highly regular hexagonal mesostructures could survive by steaming at 750 °C for 2 h, exhibiting good hydrothermal stability. Combining the SEM investigation, the as-made materials showed tubular morphology with diameter of 0.4 μm. The sample has a stronger acid strength, and was used as the support of a Pd-Pt catalyst for the polyaromatics hydrogenation. It has high activity and good sulfur tolerance towards hydrogenation of aromatics of smaller diameter. It was demonstrated that the introduction of building units of Beta zeolite enhances the activity of polyaromatics hydrogenation. It can be concluded that the pore structure and acidity of support is a key factor for the design of a sulfur tolerant noble metal catalyst for aromatics saturation of diesel.

Enhancing tetralin hydrogenation activity and sulphur-tolerance of Pt/MCM-41 catalyst with Al(NO3)3, AlCl3 and Al(CH3)3

2014 ◽  
Vol 4 (7) ◽  
pp. 2081-2090 ◽  
Author(s):  
Mingjian Luo ◽  
Qingfa Wang ◽  
Guozhu Li ◽  
Xiangwen Zhang ◽  
Li Wang ◽  
...  
Keyword(s):  
Sulfur Tolerance ◽  
Hydrogenation Activity ◽  
Mcm 41 ◽  
Sulphur Tolerance

The isolation, anchor and electron-withdrawing effect of aluminum promoters greatly improve the tetralin hydrogenation activity and sulfur-tolerance of Pt/MCM-41 catalyst.

The effect of zirconium and niobium oxidic species on platinum dispersion in 1%Pt/Nb,Zr-containing MCM-41

2009 ◽  
Vol 142 (3-4) ◽  
pp. 298-302 ◽  
Author(s):  
Joanna Goscianska ◽  
Ryszard Fiedorow ◽  
Agata Wawrzynczak ◽  
Maria Ziolek
Keyword(s):  
Platinum Dispersion ◽  
Mcm 41

AlCl3-Promoted MCM-41-Supported Platinum Catalysts with High Activity and Sulfur-Tolerance for Tetralin Hydrogenation: Effect of Al/Pt Ratio

2013 ◽  
Vol 143 (5) ◽  
pp. 454-462 ◽  
Author(s):  
Mingjian Luo ◽  
Qingfa Wang ◽  
Guozhu Li ◽  
Xiangwen Zhang ◽  
Li Wang
Keyword(s):  
High Activity ◽  
Platinum Catalysts ◽  
Sulfur Tolerance ◽  
Supported Platinum ◽  
Supported Platinum Catalysts ◽  
Hydrogenation Effect ◽  
Mcm 41

The design and catalytic performance of molybdenum active sites on an MCM-41 framework for the aerobic oxidation of 5-hydroxymethylfurfural to 2,5-diformylfuran

2019 ◽  
Vol 9 (3) ◽  
pp. 811-821 ◽  
Author(s):  
Zhao-Meng Wang ◽  
Li-Juan Liu ◽  
Bo Xiang ◽  
Yue Wang ◽  
Ya-Jing Lyu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Active Sites ◽  
Aerobic Oxidation ◽  
Catalytic Performance ◽  
Mcm 41

The catalytic activity decreases as –(SiO)3Mo(OH)(O) > –(SiO)2Mo(O)2 > –(O)4–MoO.

Benzene confined in MCM-41 below its melting point : A proton NMR study

2000 ◽  
Vol 10 (PR7) ◽  
pp. Pr7-99-Pr7-102 ◽  
Author(s):  
G. Dosseh ◽  
D. Morineau ◽  
C. Alba-Simionesco
Keyword(s):  
Melting Point ◽  
Proton Nmr ◽  
Nmr Study ◽  
Mcm 41

A neutron scattering investigation of the structural properties of glassforming m-toluidine confined in MCM-41

2000 ◽  
Vol 10 (PR7) ◽  
pp. Pr7-95-Pr7-98 ◽  
Author(s):  
D. Morineau ◽  
F. Casas ◽  
C. Alba-Simionesco ◽  
A. Grosman ◽  
M.-C. Bellissent-Funel ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Structural Properties ◽  
Mcm 41

Conversion of Biomass-Derived Carbohydrates to Methyl Lactate Using Sn-MCM-41 and SnO2/SiO2

2013 ◽  
Vol 33 (10) ◽  
pp. 1696-1705
Author(s):  
Zhen LIU ◽  
Gang FENG ◽  
Chunyan PAN ◽  
Wang LI ◽  
Ping CHEN ◽  
...  
Keyword(s):  
Methyl Lactate ◽  
Mcm 41
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