cobalt – TechConnect Briefs

Cobalt Doped (Mn,Ti)- Oxides for Supercapacitors

Houck J.D., Amar V.S., Shende R.V., South Dakota School of Mines and Technology, US

In this investigation, a (Mn,Ti)-oxide (Mn:Ti 65:35 wt%) was prepared using surfactant templating assisted sol-gel method. To prepare this nanocomposite, sol-A with Ti precursor and sol-B containing Mn precursor were separately prepared using the required [...]

The use of Werner complexes as remarkably versatile bioconjugation reagents in the synthesis of redox repsonsive albumin nanoparticles containing camptothecin derivatives

Cavazos R.J., Morrison C.S., Lampe J.B., Nguyen D.T., Harris A.N., McFarlin B.K., Petros R.A., University of North Texas, US

Alfred Werner, the father of inorganic chemistry, received the Nobel Prize in 1913 for his pioneering work in formulating a theory to describe bonding patterns for coordination compounds. A number of complexes studied were amine [...]

Ammonia Decomposition on Carbon Supported Cobalt Catalyst

Zhang H., Alhamed Y.A., Petrov L., Kojima Y., King Abdulaziz University, SA

Liquid ammonia has both high energy density and high hydrogen storage capacity which makes it suitable for on-board generation of COx free hydrogen by catalytic ammonia decomposition (AD). Cheap catalysts based on cobalt were considered [...]

The effect of promoters on reduction of Ru/ZrO2/Co/SiO2 catalyst for Fischer-Tropsch synthesis as studied by in situ XANES.

Kangvansura P., Poo-arporn Y., Schulz H., Worayingyong A., Kasetsart University, TH

AbstractRu/ZrO2/Co/SiO2 was prepared via a co-precipitation and an incipient wetnessimpregnation methods and characterized by XRD and XANES. To study the effect ofpromoters on reduction of active cobalt species on the catalyst, Ru/ZrO2/Co/SiO2,ZrO2/Co/SiO2, Ru/Co/SiO2, and Co/SiO2 [...]

Grow of stem cells on chemical-laser generated titanium cobalt shape memory alloy nanoparticles

Karami A., Materials and Energy Research Centre, IR

In this research nanoparticles are fabricated using a method that is a combination of chemical and femtosecond laser ablation methods. The resulting nanoparticles are used to coat glass substrates in order to test the biocompatibility [...]

Ammonia Decomposition on Carbon Supported Cobalt Catalyst

Zhang H., Alhamed Y.A., Petrov L., Kojima Y., King Abdulaziz University, SA

Liquid ammonia has both high energy density and high hydrogen storage capacity which makes it suitable for on-board generation of COx free hydrogen by catalytic ammonia decomposition (AD). Cheap catalysts based on cobalt were considered [...]

The effect of promoters on reduction of Ru/ZrO2/Co/SiO2 catalyst for Fischer-Tropsch synthesis as studied by in situ XANES

Kangvansura P., Poo-arporn Y., Schulz H., Worayingyong A., Kasetsart University, TH

AbstractRu/ZrO2/Co/SiO2 was prepared via a co-precipitation and an incipient wetnessimpregnation methods and characterized by XRD and XANES. To study the effect ofpromoters on reduction of active cobalt species on the catalyst, Ru/ZrO2/Co/SiO2,ZrO2/Co/SiO2, Ru/Co/SiO2, and Co/SiO2 [...]

Microkinetic Study of Oxygenate and Hydrocarbon Formation from Syngas on Rhodium and Cobalt Surfaces: Effect of Site Structure on Catalytic Cycles

Kapur N., Sampara C., Hao X., Hyun J., Shan B., Nicholas J.B., Davis B., Cho K., Nanostellar Inc., US

Syngas reformation into fuels is an attractive opportunity to diversify away from petroleum and address energy-dependency concerns. Rh and Co-based catalysts used within Fischer-Tropsch (FT) process selectively convert syngas into oxygenates and hydrocarbons respectively but [...]

Microkinetic Study of Oxygenate and Hydrocarbon Formation from Syngas on Rhodium and Cobalt Surfaces: Effect of Site Structure on Catalytic Cycles

Kapur N., Sampara C., Hao X., Hyun J., Shan B., Nicholas J.B., Davis B., Cho K., Nanostellar Inc., US

Syngas reformation into fuels is an attractive opportunity to diversify away from petroleum and address energy-dependency concerns. Rh and Co-based catalysts used within Fischer-Tropsch (FT) process selectively convert syngas into oxygenates and hydrocarbons respectively but [...]

Synthesis of Cobalt-based Nanoparticles in Silicon Dioxide for Nonvolatile Memory Applications

Yoon J-H, Kangwon National University, KR

In this study, we report the direct growth of cobalt (Co) silicide nanocrystals (NCs) by thermally annealing of a simple sandwich structure consisting of an ultrathin Co layer sandwiched between two silicon-rich oxide (SiOx) layers, [...]