A comparative study of catalytic activity on iron‐based carbon nanostructured catalysts with Pd loading: Using the Box–Behnken design (BBD) method in the Suzuki–Miyaura coupling

2021 ◽  
Author(s):  
Faezeh Moniriyan ◽  
Seyyed Javad Sabounchei
Keyword(s):  
Catalytic Activity ◽  
Comparative Study ◽  
Nanostructured Catalysts ◽  
Box Behnken Design ◽  
Iron Based

Comparative Study of Iron-Based Fischer–Tropsch Synthesis Catalysts Promoted with Strontium or Potassium

2016 ◽  
Vol 146 (12) ◽  
pp. 2574-2584 ◽  
Author(s):  
Jifan Li ◽  
Xiaofan Cheng ◽  
Chenghua Zhang ◽  
Wensheng Dong ◽  
Yong Yang ◽  
...  
Keyword(s):  
Comparative Study ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Synthesis Catalysts ◽  
Iron Based

A facile approach to fabricate halloysite/metal nanocomposites with preformed and in situ synthesized metal nanoparticles: a comparative study of their enhanced catalytic activity

2015 ◽  
Vol 44 (19) ◽  
pp. 8906-8916 ◽  
Author(s):  
Sankar Das ◽  
Subhra Jana
Keyword(s):  
Catalytic Activity ◽  
Comparative Study ◽  
Metal Nanoparticles ◽  
Heterogeneous Catalysts ◽  
Cost Effective ◽  
Environmentally Benign ◽  
Metal Nanocomposites

Halloysite/metal nanocomposites have been synthesized through the immobilization of preformed and in situ synthesized metal nanoparticles over halloysite surfaces, which in turn produce efficient, cost-effective, and environmentally benign heterogeneous catalysts.

A comparative study of the catalytic activity of Co- and CoFe2O4-NPs in C–N and C–O bond formation: synthesis of benzimidazoles and benzoxazoles from o-haloanilides

2016 ◽  
Vol 40 (12) ◽  
pp. 10474-10481 ◽  
Author(s):  
Abdol R. Hajipour ◽  
Zahra Khorsandi
Keyword(s):  
Catalytic Activity ◽  
Comparative Study ◽  
Bond Formation ◽  
New Methods ◽  
Comparison Of The Results

Herein, new methods and a comparison of the results for dehalogenative intramolecular C–X bond formation using two inexpensive and efficient catalysts are reported.

Ru/TiO2 Nanostructured Catalysts: Synthesis, Characterization and Catalytic Activity Towards Hydrogenation of Ethyl Levulinate

2021 ◽  
Vol 21 (12) ◽  
pp. 6160-6167
Author(s):  
Sakthivel Kumaravel ◽  
Sivakumar Thiripuranthagan ◽  
Elangovan Erusappan ◽  
Aishwarya Sivakumar ◽  
Saranraj Kumaravel ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Inductively Coupled Plasma ◽  
Sol Gel ◽  
Nanostructured Catalysts ◽  
Optical Emission ◽  
Morphological Properties ◽  
Emission Spectrometry ◽  
Experimental Conditions ◽  
Ethyl Levulinate ◽  
Ru Nanoparticles

Pristine TiO2 and x% Ru/TiO2 catalysts with different wt.% of Ru (x%= 1.5%, 2%, 2.5% and 3%) were synthesized using sol–gel and simple impregnation methods. Different characterization techniques such as X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Scanning electron microscopy (SEM), High-resolution transmission electron microscope (HR-TEM), Inductively coupled plasma-optical emission spectrometry (ICP-OES) and Thermogravimetry/Differential thermal analysis (TG/DTA) were used to study the physicochemical and morphological properties. The XRD patterns of the as-prepared pristine TiO2 catalyst showed high crystalline nature. The HR-TEM images revealed that the Ru nanoparticles (NPs) were evenly dispersed on the TiO2 surface. The prepared catalysts were evaluated for their catalytic activity towards the liquid phase hydrogenation of ethyl levulinate under mild reaction conditions (ambient H2 pressure). Among the various catalysts, 2.5% Ru/TiO2 catalyst showed the maximum catalytic activity of 79% ethyl levulinate (EL) conversion with 82% selectivity of γ-valerolactone (GVL). The recyclability test revealed that the most active 2.5% Ru/TiO2 also showed the highest stability of the catalyst under optimized experimental conditions.

A Comparative Study of Sulfhydryl Groups Required for the Catalytic Activity of Gramicidin S Synthetase and Isoleucyl tRNA Synthetase

1984 ◽  
Vol 96 (3) ◽  
pp. 701-711 ◽  
Author(s):  
Masayuki KANDA ◽  
Kazuko HORI ◽  
Toshitsugu KUROTSU ◽  
Setsuko MIURA ◽  
Yoshitaka SAITO
Keyword(s):  
Catalytic Activity ◽  
Comparative Study ◽  
Trna Synthetase ◽  
Sulfhydryl Groups ◽  
Gramicidin S
Sign in / Sign up

Export Citation Format

Share Document