scholarly journals Effect of the Dendrimer Generation Used in the Synthesis of Pt-Ru Nanoparticles Supported on Carbon Nanofibers on the Catalytic Activity towards Methanol Oxidation

Energies ◽  
2017 ◽  
Vol 10 (2) ◽  
pp. 159 ◽  
Author(s):  
Juan Calderón ◽  
Laura Calvillo ◽  
María Lázaro ◽  
José Rodríguez ◽  
Elena Pastor
Keyword(s):  
Catalytic Activity ◽  
Carbon Nanofibers ◽  
Methanol Oxidation ◽  
Ru Nanoparticles ◽  
Dendrimer Generation

Effects of Microwave-synthesizing Parameters on Structure and Electro-catalytic Activity of Pt2Mo/C towards Methanol Oxidation

2010 ◽  
Vol 25 (4) ◽  
pp. 359-364 ◽  
Author(s):  
Xin ZENG ◽  
Xian-Xia YUAN ◽  
Xiao-Yun XIA ◽  
Juan DU ◽  
Hui-Juan ZHANG ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Methanol Oxidation ◽  
Electro Catalytic Activity

Tenfold catalytic activity enhancement of Pt∕C by doping with single walled carbon nanotube for methanol oxidation

2007 ◽  
Vol 90 (6) ◽  
pp. 063112 ◽  
Author(s):  
Jayasri Narayanamoorthy ◽  
Sumitha Durairaj ◽  
Youngsik Song ◽  
Yuan Xu ◽  
Jaewu Choi
Keyword(s):  
Catalytic Activity ◽  
Carbon Nanotube ◽  
Methanol Oxidation ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Activity Enhancement

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.

Transient, in situ synthesis of ultrafine ruthenium nanoparticles for a high-rate Li–CO2 battery

2019 ◽  
Vol 12 (3) ◽  
pp. 1100-1107 ◽  
Author(s):  
Yun Qiao ◽  
Shaomao Xu ◽  
Yang Liu ◽  
Jiaqi Dai ◽  
Hua Xie ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Porous Structure ◽  
Carbon Nanofibers ◽  
In Situ Synthesis ◽  
High Rate ◽  
Ruthenium Nanoparticles ◽  
High Performing ◽  
Activated Carbon Nanofibers ◽  
Ru Nanoparticles

Ultrafine Ru nanoparticles anchored on freestanding activated carbon nanofibers with porous structure are synthesized as a high performing cathode for Li–CO2 batteries via a transient, in situ thermal shock method.

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