Sol‐Gel Preparation of Perovskite Oxides Using Ethylene Glycol and Alcohol Mixture as Complexant and Its Catalytic Performances for CO Oxidation

2018 ◽  
Vol 3 (43) ◽  
pp. 12250-12257 ◽  
Author(s):  
Shan Wang ◽  
Yibo Zhang ◽  
Junjiang Zhu ◽  
Duihai Tang ◽  
Zhen Zhao ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Co Oxidation ◽  
Sol Gel ◽  
Perovskite Oxides ◽  
Alcohol Mixture ◽  
Gel Preparation ◽  
Catalytic Performances

Catalytic performances of perovskite oxides for CO oxidation under microwave irradiation

2016 ◽  
Vol 283 ◽  
pp. 97-104 ◽  
Author(s):  
Hisahiro Einaga ◽  
Yusaku Nasu ◽  
Manabu Oda ◽  
Hikaru Saito
Keyword(s):  
Microwave Irradiation ◽  
Co Oxidation ◽  
Perovskite Oxides ◽  
Catalytic Performances

Sol-gel preparation of crystalline Ni12P5/N-doped carbon and amorphous Ni-P-C catalysts and their high catalytic performances toward hydrogenation reduction reaction of 4-nitrophenol

2021 ◽  
Author(s):  
Pingyun Li ◽  
Haitao Ni ◽  
Shengxiang Jiang ◽  
Han Wang
Keyword(s):  
Sol Gel ◽  
Reduction Reaction ◽  
Tube Furnace ◽  
Gel Method ◽  
Sol Gel Method ◽  
Gel Preparation ◽  
Catalytic Performances

Sol-gel method was conducted to prepare Ni12P5/N-doped carbon and amorphous Ni-P-C materials where heating treatments of the dried gel precursors were operated under N2 protecting atmosphere in a tube furnace....

Efficient Micromixing for Continuous Biodiesel Production from Jatropha Oil

2018 ◽  
Vol 9 (1) ◽  
pp. 133-139
Author(s):  
Waleed S. Mohammed ◽  
Ahmed H. El-Shazly ◽  
Marwa F. Elkady ◽  
Masahiro Ohshima
Keyword(s):  
Methyl Esters ◽  
Continuous Process ◽  
Sol Gel ◽  
Average Diameter ◽  
Biodiesel Production ◽  
High Mass ◽  
Molar Ratio ◽  
Jatropha Oil ◽  
Energy Deficiency ◽  
Gel Preparation

Introduction: The utilization of biodiesel as an alternative fuel is turning out to be progressively famous these days because of worldwide energy deficiency. The enthusiasm for utilizing Jatropha as a non-edible oil feedstock is quickly developing. The performance of the base catalyzed methanolysis reaction could be improved by a continuous process through a microreactor in view of the high mass transfer coefficient of this technique. Materials & Methods: Nanozirconium tungstovanadate, which was synthetized using sol-gel preparation method, was utilized in a complementary step for biodiesel production process. The prepared material has an average diameter of 0.066 &µm. Results: First, the NaOH catalyzed methanolysis of Jatropha oil was investigated in a continuous microreactor, and the efficient mixing over different mixers and its impact on the biodiesel yield were studied under varied conditions. Second, the effect of adding the nanocatalyst as a second stage was investigated. Conclusion: The maximum percentage of produced methyl esters from Jatropha oil was 98.1% using a methanol/Jatropha oil molar ratio of 11 within 94 s using 1% NaOH at 60 &°C. The same maximum conversion ratio was recorded with the nanocatalyst via only 0.3% NaOH.

scholarly journals Chemical and Structural Characterization of Amorphous and Crystalline Alumina Obtained by Alternative Sol–Gel Preparation Routes

Materials ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1761
Author(s):  
Izabela Rutkowska ◽  
Jakub Marchewka ◽  
Piotr Jeleń ◽  
Mateusz Odziomek ◽  
Mateusz Korpyś ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Aluminum Oxide ◽  
Physicochemical Properties ◽  
Sol Gel ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Bet Method ◽  
Gel Preparation ◽  
Angle Spinning ◽  
Middle Infrared

Aluminum oxide is one of the most commonly used materials in the industry. It is used in the field of catalysis, refractories, and optics. Despite the fact that there are many techniques available, there is still a great challenge in obtaining a material with desired and designed properties. Nevertheless, there is a great flexibility in making customized alumina materials with desired physicochemical properties synthesized by sol–gel methods. This work consists in characterizing the physicochemical properties of sol–gel synthesized aluminum oxide using different sol–gel preparation routes. Three different sols were obtained by using organic precursors and underwent thermal treatment. The structure (Middle Infrared Spectroscopy, Diffused Reflectance Infrared Spectroscopy, X-ray Diffraction, Magic Angle Spinning Nuclear Magnetic Resonance) and microstructure (Scanning Electron Microscopy with Electron Dispersive Spectroscopy) tests of the materials were carried out. The specific surface area was determined by using the Brunauer–Emmett–Teller (BET) method. Thermal analysis was performed for all the powders, in order to analyze the specific temperature of materials transformation.

Sol-gel preparation and characterization of transparent GdTaO 4 : Eu3+thick films

2008 ◽  
Author(s):  
Kun Han ◽  
Mu Gu ◽  
Xiaolin Liu ◽  
Chen Ni ◽  
Shiming Huang ◽  
...  
Keyword(s):  
Thick Films ◽  
Sol Gel ◽  
Gel Preparation

Pt-porous ZnO nanoribbon hybrid materials with enhanced catalytic performances

CrystEngComm ◽  
2015 ◽  
Vol 17 (8) ◽  
pp. 1765-1768 ◽  
Author(s):  
Zhiqiang Cheng ◽  
Mingyue Yu ◽  
Guixia Yang ◽  
Lijuan Kang
Keyword(s):  
Photocatalytic Degradation ◽  
Co Oxidation ◽  
Hybrid Materials ◽  
Catalytic Properties ◽  
Seeded Growth ◽  
Hybrid Nanomaterial ◽  
Growth Method ◽  
Catalytic Applications ◽  
Catalytic Performances

With the help of bio-molecule l-lysine, a seeded growth method has been developed and Pt–ZnO porous nanoribbons have been successfully obtained. For the catalytic applications of CO oxidation and the photocatalytic degradation of MO, the hybrid nanomaterial exhibits remarkably enhanced catalytic properties.

Sign in / Sign up

Export Citation Format

Share Document