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Your search keyword '"Sudhakaran, M.S.P."' showing total 14 results
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14 results on '"Sudhakaran, M.S.P."'

7. Dry Reforming of Propane over γ-Al2O3 and Nickel Foam Supported Novel SrNiO3 Perovskite Catalyst

Author

Sudhakaran M.S.P, Md. Mokter Hossain, Gnanaselvan Gnanasekaran, and Young Sun Mok

Subjects
alkali earth metal, SrNiO3, perovskite, propane, syngas, nickel foam, γ-Al2O3, Chemical technology, TP1-1185, Chemistry, QD1-999
Abstract

The SrNiO3 perovskite catalyst was synthesized by the citrate sol-gel method and supported on γ-Al2O3 and Nickel foam, which was used to produce syngas (CO and H2) via dry reforming of propane (DRP). Several techniques characterized the physicochemical properties of the fresh and spent perovskite catalyst. The X-ray diffractograms (XRD) characterization confirmed the formation of the perovskite compound. Before the catalytic activity test, SrNiO3 perovskite catalyst was reduced in the H2 atmosphere. Results indicated that the H2 reduction slightly increased the activity of the SrNiO3 perovskite catalyst. The catalytic activity was examined for the CO2/C3H8 ratio of 3 and reaction temperatures in the range of 550 °C–700 °C. The results from the catalytic study achieved 88% conversion of C3H8 and 66% conversion of CO2 with SrNiO3/NiF at 700 °C. Also, syngas with a maximum concentration of 21 vol.% of CO and 29 vol.% of H2 was produced from the DRP. The strong basicity of SrNiO3 perovskite enhanced the CO selectivity, resulting in minimal carbon formation. Post reaction catalyst characterization showed the presence of carbon deposition which could have originated from propane decomposition.

Published
2019
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9. Hierarchically Porous Nanostructured Nickel Phosphide with Carbon Particles Embedded by Dielectric Barrier Discharge Plasma Deposition as a Binder-Free Electrode for Hybrid Supercapacitors

Author

Md. Mokter Hossain, Young Sun Mok, Sang-Jae Kim, Parthiban Pazhamalai, Gnanaselvan Gnanasekaran, Surjit Sahoo, Roshan Mangal Bhattarai, and Sudhakaran M.S.P

Subjects
Supercapacitor, Fabrication, Materials science, Renewable Energy, Sustainability and the Environment, Phosphide, General Chemical Engineering, chemistry.chemical_element, 02 engineering and technology, General Chemistry, Dielectric barrier discharge, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Nickel, chemistry.chemical_compound, chemistry, Chemical engineering, Electrode, medicine, Environmental Chemistry, 0210 nano-technology, Porosity, Activated carbon, medicine.drug
Abstract

Three-dimensional (3D) metal phosphides are promising superior electrode components for supercapacitors. In this study, 3D porous nickel phosphide nanoarrays are successfully enrooted on the surface of nickel foam (Ni2P/NF) by low-temperature hydrothermal treatment. Subsequently, a nanocarbon was embedded over Ni2P@NF by efficient utilization of the environmental pollutant ethylene gas via a dielectric barrier discharge plasma reactor. This nanocarbon was deposited on porous Ni2P/NF nanoarrays (Ni2P-C/NF) as a positive electrode sandwiched with peanut shell-derived porous activated carbon (PNS-AC) as a negative electrode for the fabrication of a hybrid supercapacitor device. The hybrid supercapacitor device (Ni2P-C/NF//PNS-AC) delivers an enormous amount of areal and gravimetric capacities values at a 1 A g–1 current density of 318.8 μAh cm–2 and 106.2 mAh g–1, respectively. Moreover, the hybrid supercapacitor device achieved outstanding energy and power density with excellent cyclic durability (90.1%) ev...

Published
2019

10. Iron–ceria spinel (FeCe2O4) catalyst for dry reforming of propane to inhibit carbon formation

Author

Young Sun Mok, Volker Brüser, Joanna Pawłat, Jarosław Diatczyk, Sudhakaran M.S.P, Md. Mokter Hossain, Stephan Reuter, and Lamia Sultana

Subjects
Carbon dioxide reforming, General Chemical Engineering, Spinel, chemistry.chemical_element, 02 engineering and technology, Coke, engineering.material, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Redox, 0104 chemical sciences, Catalysis, chemistry.chemical_compound, chemistry, Chemical engineering, Propane, engineering, 0210 nano-technology, Mesoporous material, Carbon
Abstract

Dry reforming of propane (DRP) with CO2 was examined over iron–ceria spinel (FeCe2O4) that was synthesized on mesoporous alumina foam by the sol–gel method. The FeCe2O4/Al-F catalyst exhibited significant catalytic activity for the DRP with propane and CO2 conversions of 93% and 76%, respectively. Moreover, the redox behavior of the spinel was found to greatly reduce the deposition of carbon, which could be attributed to the oxidation of surface carbon to CO via the interaction with FeCe2O4 lattice oxygen. The FeCe2O4/Al-F catalyst with good catalytic activity, long-term stability and coke resistance may be a promising candidate for the DRP.

Published
2018

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