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Browsing Journal Articles by Author "Dharmarathna, Saminda"

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Catalytic oxidation of ethylene at low temperatures using porous copper manganese oxides

King’ondu, Cecil K.; Njagi, Eric C.; Genuino, Homer C.; Dharmarathna, Saminda; Suib, Steven L. (Elsevier, 2012-04)

Amorphous manganese oxide and binary copper manganese oxides were synthesized using the redox method, characterized, and tested in the catalytic oxidation of ethylene. The catalytic activity of the synthesized catalysts ...
Direct sonochemical synthesis of Manganese Octahedral Molecular Sieve (OMS-2) Nanomaterials using cosolvent systems, their characterization, and catalytic applications

King’ondu, Cecil K.; Dharmarathna, Saminda; Pedrick, Wyatt; Pahalagedara, Lakshitha; Suib, Steven L. (2012)

A rapid, direct sonochemical method has successfully been developed to synthesize cryptomelane-type manganese octahedral molecular sieve (OMS-2) materials. Very high surface area of 288 ± 1 m2/g and small particle sizes ...
Formation of Platinum (Pt) Nanocluster coatings on K-OMS-2 Manganese Oxide membranes by Reactive Spray Deposition Technique (RSDT) for extended stability during CO oxidation

King’ondu, Cecil K.; Garces, Hector F.; Roller, Justin; Dharmarathna, Saminda; Ristau, Roger A.; Jain, Rishabh; Maric, Radenka; Suib, Steven L. (2014)

Nanocluster formation of a metallic platinum (Pt) coating, on manganese oxide inorganic membranes impregnated with multiwall carbon nanotubes (K-OMS-2/MWCNTs), applied by reactive spray deposition technology (RSDT) is ...
Manganese octahedral molecular sieve (OMS-2) catalysts for selective aerobic oxidation of thiols to disulfides

King’ondu, Cecil K.; Dharmarathna, Saminda; Pahalagedara, Lakshitha; Kuo, Chung-Hao; Zhang, Yashan; Suib, Steven L. (Elsevier, 2014-04)

Selective aerobic oxidation of thiols to disulfides without any over oxidized products is studied using cryptomelane type manganese oxides (K-OMS-2) with a tunnel structure as catalysts. Using K-OMS-2 prepared by different ...
Nonthermal synthesis of three-dimensional metal oxide structures under continuous-flow conditions and their catalytic applications

King’ondu, Cecil K.; Opembe, Naftali N.; Genuino, Homer C.; Garces, Hector F.; Njagi, Eric C.; Iyer, Aparna; Huang, Hui; Dharmarathna, Saminda; Suib, Steven L. (2011)

Continuous-flow synthesis of one-dimensional (1D) metal oxide nanostructures and/or their integration into hierarchical structures under nonthermal conditions is still a challenge. In this work, a nonthermal, continuous-flow ...
X-ray absorption spectroscopic study of a highly thermally stable Manganese Oxide Octahedral Molecular Sieve (oms-2) with high Oxygen reduction reaction activity

King’ondu, Cecil K.; El-Sawy, Abdelhamid M.; Kuo, Chung-Hao; Kriz, David A.; Guild, Curtis J.; Meng, Yongtao; Frueh, Samuel J.; Dharmarathna, Saminda; Ehrlich, Steven N.; Suib, Steven L. (American Chemical Society, 2014 Septe)

The development of catalysts with high thermal stability is receiving considerable attention. Here, we report manganese oxide octahedral molecular sieve (OMS-2) materials with remarkably high thermal stability, synthesized ...

Browsing Journal Articles by Author "Dharmarathna, Saminda"

Browsing Journal Articles by Author "Dharmarathna, Saminda"

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