hydrogen – Page 4 – TechConnect Briefs

Photocatalytic activity of mesoporous titanium dioxide nanoparticles under visible light irradiation

Ikuma Y., Kida S., Kuramoto R., Niwa K., Anandan S., Kanagawa Inst. of Tech., JP

Using surfactant and other chemicals, nano-template consisting of SiO2 was first prepared. Then the template was treated in titanium tetra-isopropoxide dissolved in 1-propanol to convert silicon into titanium. The product was heated in air or [...]

Theoretical Modeling of Phase Diagram of Clathrate Hydrates toward Hydrogen Storage Applications

Belosludov R.V., Belosludov V.R., Mizuseki H., Subbotin O.S., Belosludov R.V., Belosludov V.R., Kawazoe Y., Institute for Materials Research, Tohoku University, JP

The possible formation of hydrogen hydrate, a class of inclusion compounds consisting of water and hydrogen as host and guest molecules, respectively, with different structures by adding various guest molecules suggests the practical feasibility of [...]

Catalytic Subcritical Hydropyrolysis of Waste Biomass into Gasoline Range Hydrocarbons

Tungal R., Shende R.V., South Dakota School of Mines and Technology, US

Catalytic aqueous phase reforming (CAPR) of the biomass has a great potential for the production of H2 and hydrocarbons. This study reports synthesis of novel nanoscale bifunctional catalytic material and its utilization in CAPR process [...]

Expermental Study of CH4/H2 Mixtures in Internal Combustion Engines

Kahraman N., Albayrak Çeper B., Akansu S.O., Bayrak M., Erciyes University, TR

In this study, an experimental study on the performance of a spark ignition engine fuelled with CH4/ H2 mixtures (90%CH4 +10%H2 and80%CH4 +20%H2)was performed at different engine speed and different injection timing coefficient (ITC). This [...]

Expermental Study of CH4/H2 Mixtures in Internal Combustion Engines

Kahraman N., Albayrak Çeper B., Akansu S.O., Bayrak M., Erciyes University, TR

In this study, an experimental study on the performance of a spark ignition engine fuelled with CH4/ H2 mixtures (90%CH4 +10%H2 and80%CH4 +20%H2)was performed at different engine speed and different injection timing coefficient (ITC). This [...]

Catalytic Subcritical Hydropyrolysis of Waste Biomass into Gasoline Range Hydrocarbons

Tungal R., Shende R.V., South Dakota School of Mines and Technology, US

Catalytic aqueous phase reforming (CAPR) of the biomass has a great potential for the production of H2 and hydrocarbons. This study reports synthesis of novel nanoscale bifunctional catalytic material and its utilization in CAPR process [...]

High-aspect-ratio deep Si etching of micro/nano scale features with SF6 /H2/ O2 plasma, in a low plasma density reactive ion etching system

Sanaee Z., Poudineh M., Mehran M., Mohajerzadeh S., University of Tehran, IR

In this paper we report a novel low plasma power reactive ion etching technique to achieve high rate, high aspect ratio features on silicon. The etching process is achieved using a sequential passivation and etching [...]

Theoretical Modeling of Phase Diagram of Clathrate Hydrates toward Hydrogen Storage Applications

Belosludov R.V., Belosludov V.R., Mizuseki H., Subbotin O.S., Belosludov R.V., Belosludov V.R., Kawazoe Y., Institute for Materials Research, Tohoku University, JP

The possible formation of hydrogen hydrate, a class of inclusion compounds consisting of water and hydrogen as host and guest molecules, respectively, with different structures by adding various guest molecules suggests the practical feasibility of [...]

Eco-efficiency measurement for Hydrogen as an alternative public transportation fuel

Cha K-H, Lee J-Y, Hur T., Konkuk University, KR

Urban governments are continually striving to enhance public transportation in ways that make them more environmental-friendly and improve the air quality. H2 and Fuel Cell Bus (FCB) offer one of the best ways to reduce [...]

Completion and Operation of the thermo-chemical water splitting sulfur iodine process in a lab scale plant for a continuous hydrogen production

Felici C., Caputo G., Liberatore R., Favuzza P., Giaconia A., Sau S., Lanchi M., Tarquini P., ENEA, IT

The ENEA (Italian National Agency for New Technologies, Energy and Sustainable Economic Development) with the majors Italian Universities, within the framework of the national founded project TEPSI (Innovative Technologies and Processes for the Transition to [...]