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Catalysts, Volume 7, Issue 3

March 2017 - 24 articles

Cover Story: Density functional theory (DFT) calculations have been used to explore the catalytic potential in olefin metathesis of in silico Ru-based complexes holding a phosphine-phosphonium ylide ligand, the electron-donating properties of which overtake those of the conventional N-heterocyclic carbene (NHC) and Cl ligands together. Reaction intermediates coming from either complex are found to exhibit similar thermodynamic stability. Both complexes are shown to be activated through a dissociative mechanism, with a more exothermic first dissociation of the common PPh3 ligand from the ylide complex. The cationic character of the latter opens prospects for a new generation of catalysts turning in aqueous media. View this paper
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Articles (24)

  • Review
  • Open Access
111 Citations
16,305 Views
38 Pages

Recent Advancements in Stereoselective Olefin Metathesis Using Ruthenium Catalysts

  • T. Patrick Montgomery,
  • Adam M. Johns and
  • Robert H. Grubbs

14 March 2017

Olefin metathesis is a prevailing method for the construction of organic molecules. Recent advancements in olefin metathesis have focused on stereoselective transformations. Ruthenium olefin metathesis catalysts have had a particularly pronounced imp...

  • Article
  • Open Access
56 Citations
9,774 Views
18 Pages

Solvent-Free Biginelli Reactions Catalyzed by Hierarchical Zeolite Utilizing a Ball Mill Technique: A Green Sustainable Process

  • Ameen Shahid,
  • Nesreen S. Ahmed,
  • Tamer S. Saleh,
  • Shaeel Ahmed Al-Thabaiti,
  • Sulaiman N. Basahel,
  • Wilhelm Schwieger and
  • Mohamed Mokhtar

13 March 2017

A sustainable, green one-pot process for the synthesis of dihydropyrimidinones (DHPMs) derivatives by a three-component reaction of β-ketoester derivatives, aldehyde and urea or thiourea over the alkali-treated H-ZSM-5 zeolite under ball-milling was...

  • Feature Paper
  • Review
  • Open Access
102 Citations
16,871 Views
25 Pages

11 March 2017

To address the issues of greenhouse gas emissions associated with fossil fuels, vegetable oilseeds, especially non-food oilseeds, are used as an alternative fuel resource. Vegetable oil derived from these oilseeds can be upgraded into hydrocarbon bio...

  • Article
  • Open Access
14 Citations
6,269 Views
10 Pages

Synthesis of Renewable Diesel Range Alkanes by Hydrodeoxygenation of Palmitic Acid over 5% Ni/CNTs under Mild Conditions

  • Yanan Duan,
  • Ranran Ding,
  • Yanchun Shi,
  • Xiao Fang,
  • Husheng Hu,
  • Mingde Yang and
  • Yulong Wu

9 March 2017

Recently, the catalytic upgrading of bio-oil to renewable diesel has been attracting more and more attention. In the current paper, carbon nanotube (CNT)-supported nickel catalysts, namely, 5% Ni/CNTs, were prepared for liquid hydrocarbon production...

  • Article
  • Open Access
25 Citations
6,180 Views
13 Pages

Biotemplated Mesoporous TiO2/SiO2 Composite Derived from Aquatic Plant Leaves for Efficient Dye Degradation

  • Zhiying Yan,
  • Jiao He,
  • Lei Guo,
  • Yueting Li,
  • Deliang Duan,
  • Yongjuan Chen,
  • Junjie Li,
  • Fagui Yuan and
  • Jiaqiang Wang 

9 March 2017

The biotemplating technique is an environmental-protective high-efficiency new technology by which the resulting TiO2 may simultaneously attain the duplication of structure and self-doping elements from biotemplate materials, which is highly desirabl...

  • Review
  • Open Access
122 Citations
19,358 Views
34 Pages

Electrocatalysts Prepared by Galvanic Replacement

  • Athanasios Papaderakis,
  • Ioanna Mintsouli,
  • Jenia Georgieva and
  • Sotiris Sotiropoulos

8 March 2017

Galvanic replacement is the spontaneous replacement of surface layers of a metal, M, by a more noble metal, Mnoble, when the former is treated with a solution containing the latter in ionic form, according to the general replacement reaction: nM + mM...

  • Review
  • Open Access
50 Citations
12,041 Views
36 Pages

7 March 2017

This review provides an overview of heterogeneous bimetallic Pd-Fe catalysts in the C–C and C–O cleavage of platform molecules such as C2–C6 polyols, furfural, phenol derivatives and aromatic ethers that are all easily obtainable from renewable cellu...

  • Article
  • Open Access
27 Citations
9,127 Views
10 Pages

Two-Dimensional Layered Double Hydroxide Derived from Vermiculite Waste Water Supported Highly Dispersed Ni Nanoparticles for CO Methanation

  • Panpan Li,
  • Mingyuan Zhu,
  • Zhiqun Tian,
  • Yang Han,
  • Yu Zhang,
  • Tuantuan Zhou,
  • Lihua Kang,
  • Jianming Dan,
  • Xuhong Guo and
  • Feng Yu
  • + 2 authors

7 March 2017

Expanded multilayered vermiculite (VMT) was successfully used as catalyst support and Ni/VMT synthesized by microwave irradiation assisted synthesis (MIAS) exhibited excellent performance in our previous work. We also developed a two-dimensional poro...

  • Article
  • Open Access
42 Citations
7,038 Views
9 Pages

Polymerization of Alkylsilanes on ZIF-8 to Hierarchical Siloxane Microspheres and Microflowers

  • Lin Yang,
  • Congjia Xie,
  • Yizhou Li,
  • Lei Guo,
  • Minfang Nie,
  • Jinping Zhang,
  • Zhiying Yan,
  • Jiaqiang Wang and
  • Wei Wang

3 March 2017

The use of metal-organic frameworks (MOFs) in the polymerization field remains comparatively rare up to now, let alone studies on the fabrication of polymer microstructures through a MOFs-catalyzed assembly process. Zeolitic imidazolate framework-8 (...

  • Feature Paper
  • Article
  • Open Access
25 Citations
11,231 Views
16 Pages

Suzuki-Miyaura C-C Coupling Reactions Catalyzed by Supported Pd Nanoparticles for the Preparation of Fluorinated Biphenyl Derivatives

  • Roghayeh Sadeghi Erami,
  • Diana Díaz-García,
  • Sanjiv Prashar,
  • Antonio Rodríguez-Diéguez,
  • Mariano Fajardo,
  • Mehdi Amirnasr and
  • Santiago Gómez-Ruiz

28 February 2017

Heterogeneous recyclable catalysts in Suzuki-Miyaura C-C coupling reactions are of great interest in green chemistry as reusable alternatives to homogeneous Pd complexes. Considering the interesting properties of fluorinated compounds for the pharmac...

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Catalysts - ISSN 2073-4344