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Compositional dependence of electrical conductivity of Ce1−xTbxO2−δ (0⩽x⩽1)

Ye, Fei; Mori, Toshiyuki; Ou, Ding Rong; Takahashi, Motoi; … - In: Renewable Energy 33 (2008) 2, pp. 331-335

Well dispersed Ce1−xTbxO2−δ nano-powders were synthesized by using the carbonate coprecipitation method in an entire compositional range of 0⩽x⩽1, which allowed the preparation of highly dense pellets by sintering at 1673K and the systematical study of the electrical conductivity in...

Persistent link: https://www.econbiz.de/10011045777

Fabrication and electrical properties of nanocrystalline Dy3+-doped CeO2 for intermediate-temperature solid oxide fuel cells

Park, K.; Hwang, H.K. - In: Energy 55 (2013) C, pp. 304-309

High-quality nano-sized Ce0.8Dy0.2O2−δ powders were synthesized by the solution combustion method, using C4H7NO4 (aspartic acid) as the combustion fuel. The nano-sized Ce0.8Dy0.2O2−δ powders provided an ultra-fine grain size and high density even at low sintering temperatures...

Persistent link: https://www.econbiz.de/10011055207

Numerical study of effect of operating and design parameters for design of steam reforming reactor

Hong, Sung Kook; Dong, Sang Keun; Han, Jeong Ok; Lee, … - In: Energy 61 (2013) C, pp. 410-418

catalyst layer length induces a decrease in H2 (hydrogen) concentration as well as pressure loss. An increased number of tubes …

Persistent link: https://www.econbiz.de/10010809511

Greenhouse effect reduction and energy recovery from waste landfill

Lombardi, Lidia; Carnevale, Ennio; Corti, Andrea - In: Energy 31 (2006) 15, pp. 3208-3219

possibilities: the direct LFG feeding to a fuel cell (FC); the production of a hydrogen-rich gas, by means of steam reforming and CO …2 capture, to feed a stationary FC; the production of a hydrogen-rich gas, by means of steam reforming and CO2 capture …

Persistent link: https://www.econbiz.de/10010809976

Thermodynamic and kinetic model of reforming coke-oven gas with steam

Zhang, Jiayuan; Zhang, Xiaohui; Chen, Zhuo; Li, Li - In: Energy 35 (2010) 7, pp. 3103-3108

The experiments of reforming the methane of coke-oven gas with steam were performed. The effects of the thermodynamic factors, such as the H2O/CH4 ratio, the conversion temperature (T) of methane and the reaction time (t), on the methane conversion rate have been investigated. The experimental...

Persistent link: https://www.econbiz.de/10010810522

Sugarcane bagasse gasification: Global reaction mechanism of syngas evolution

Ahmed, I.I.; Gupta, A.K. - In: Applied Energy 91 (2012) 1, pp. 75-81

of gaseous hydrocarbons is supported by higher flow rates of syngas and hydrogen at high heating rates and high reactor …

Persistent link: https://www.econbiz.de/10011040387

A conceptual model of a high-efficiency, stand-alone power unit based on a fuel cell stack with an integrated auto-thermal ethanol reformer

Jaggi, Vikas; Jayanti, S. - In: Applied Energy 110 (2013) C, pp. 295-303

to reform aqueous ethanol at 500°C to produce hydrogen with about 3% of CO which is tolerable for an HT-PEMFC operating …

Persistent link: https://www.econbiz.de/10011041306

The influence of Ni loading on coke formation in steam reforming of acetic acid

An, Lu; Dong, Changqing; Yang, Yongping; Zhang, Junjiao; … - In: Renewable Energy 36 (2011) 3, pp. 930-935

Steam reforming of acetic acid on Ni/γ-Al2O3 with different nickel loading for hydrogen production was investigated in …

Persistent link: https://www.econbiz.de/10011045955

Hydrogen production by biogas steam reforming: A technical, economic and ecological analysis

Braga, Lúcia Bollini; Silveira, Jose Luz; Silva, … - In: Renewable and Sustainable Energy Reviews 28 (2013) C, pp. 166-173

convert fuel into heat, and then into mechanical energy, fuel cells convert the hydrogen and oxygen chemical energy into … achievable and useful technology, it is firstly necessary to develop an economic and efficient way for hydrogen production …. Molecular hydrogen is always found combined with other chemical compounds in nature, so it must be isolated. In this paper, the …

Persistent link: https://www.econbiz.de/10011049148

Steam reforming of methane using double-walled reformer tubes containing high-temperature thermal storage Na2CO3/MgO composites for solar fuel production

Gokon, Nobuyuki; Nakamura, Shohei; Hatamachi, Tsuyoshi; … - In: Energy 68 (2014) C, pp. 773-782

Double-walled reactor tubes containing thermal storage materials based on the molten carbonate salts—100 wt% Na2CO3 molten salt, 90 wt% Na2CO3/10 wt% MgO and 80 wt% Na2CO3/20 wt% MgO composite materials—were studied for the performances of the reactor during the heat charging mode,...

Persistent link: https://www.econbiz.de/10011052954