Results 51 to 60 of about 18,427 (231)

Biotechnological aspects of sulfate reduction with methane as electron donor [PDF]

, 2010
Biological sulfate reduction can be used for the removal and recovery of oxidized sulfur compounds and metals from waste streams. However, the costs of conventional electron donors, like hydrogen and ethanol, limit the application possibilities.
Lens, P.N.L., Meulepas, R.J.W., Stams, A.J.M.   +2 more
core   +2 more sources

Recent Advances and Challenges in Ammonia‐Hydrogen Energy Conversion

Advanced Science, EarlyView.
This work summarizes the latest progress of various catalytic methods in ammonia‐hydrogen energy conversion. The challenges and outlook of ammonia‐hydrogen energy conversion system are also emphasized. This work expects to build a blueprint of renewable and efficient ammonia‐hydrogen energy conversion systems under mild conditions.
Menghao Lv, Runchao Qin, Jianshuo Chen, Kaiwen Yang, Jianwei Lu, Weiwei Lei, Yifu Yu   +6 more
wiley   +1 more source

Emerging Materials and Future Strategies for Solid Oxide Electrochemical Cells

Advanced Energy Materials, EarlyView.
Solid oxide electrochemical cells operate under strongly coupled electrochemical and thermodynamic conditions, where performance is constrained by interactions among crystal structure, defect chemistry, and interfacial evolution. This review, based on a structure‐defect‐property‐durability framework, reveals the roles of lattice symmetry and defect ...
Qiuchun Lu, Yufei Zhang, Han Zhao, Pooi See Lee, Daniel H.C. Chua   +4 more
wiley   +1 more source

Artificial Neural Network-Based Mathematical Model of Methanol Steam Reforming on the Anode of Molten Carbonate Fuel Cell Based on Experimental Research

Energies
The article describes a mathematical model of methanol steam reforming taking place at the anode of a molten carbonate fuel cell (MCFC). An artificial neural network with an appropriate structure was subjected to a learning process on the data obtained ...
Olaf Dybiński, Tomasz Kurkus, Lukasz Szablowski, Arkadiusz Szczęśniak, Jaroslaw Milewski, Aliaksandr Martsinchyk, Pavel Shuhayeu   +6 more
doaj   +1 more source

Methane Pyrolysis Performance in Catalytic Molten Media for Hydrogen Production From the Perspective of Bubble Column Reactor Design and Configuration

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT In the hydrogen production routes from natural gas (methane), methane pyrolysis offers a cleaner option than the established steam methane reforming by producing CO2‐free hydrogen. However, in fixed bed reactors over solid catalysts, this technology experiences rapid catalyst deactivation due to carbon (coke) deposition encapsulating its ...
Muhammad Irfan Fakarudin, Luqmanulhakim Baharudin, Matthew J. Watson, Wan Nor Roslam Wan Isahak   +3 more
wiley   +1 more source

Alloying Cu, Fe, and Co in Ni/YSZ Electrodes for High‐Temperature CO2 Electrolysis: Impact on TPB Density, Activity, and Carbon Deposition Resistance

Carbon Energy, EarlyView.
Systematic alloying of Ni with Cu, Fe, and Co in Ni/YSZ electrodes modifies active site density up to 43%, decreases activation energies by up to 44%, and reduces carbon deposition fourfold. Cu–Ni alloy is among the most promising alloy catalysts for electrochemical CO2 reduction in SOECs.
Min Jun Oh, Sooin Lee, Jeeho Hong, Kyung Joong Yoon, Ho‐Il Ji, Ji‐Won Son, Jong‐Ho Lee, Kyeounghak Kim, Jongsup Hong, Sungeun Yang   +9 more
wiley   +1 more source

Catalysts for obtaining hydrogen fuel

Тонкие химические технологии, 2008
The copper-zinc-zirconium cemen-tcontaining catalysts for steam reforming of methanol were prepared. Their activity in the process of methanol steam reforming has been investigated. It has been shown that introduction of zirconium-containing component in
M. A. Kruglova, M. P. Yaroshenko, S. N. Antonyuk, E. Z. Golosman   +3 more
doaj  

Oxy-steam reforming of methanol on copper catalysts [PDF]

Reaction Kinetics, Mechanisms and Catalysis, 2019
The influence of copper content in the monometallic catalysts supported on the CeO2·Al2O3 binary oxide system on their catalytic activity and physicochemical properties in oxy-steam reforming of methanol was investigated. It was shown that activity and selectivity depends on the content of copper, its dispersion on the catalysts surface.
Pawel Mierczynski, Magdalena Mosinska, Waldemar Maniukiewicz, Magdalena Nowosielska, Agnieszka Czylkowska, Malgorzta I. Szynkowska   +5 more
openaire   +1 more source

Solid acid proton conductors: from laboratory curiosities to fuel cell electrolytes [PDF]

, 2007
The compound CsH2PO4 has emerged as a viable electrolyte for intermediate temperature (200–300 °C) fuel cells. In order to settle the question of the high temperature behavior of this material, conductivity measurements were performed by two-point AC ...
Boysen, Dane A., Chisholm, Calum R. I., Haile, Sossina M., Sasaki, Kenji, Uda, Tetsuya   +4 more
core   +1 more source

Selective Oxidation Strategies for Cost‐Efficient Green Hydrogen Production via Hybrid Water Electrolysis

Carbon Energy, EarlyView.
Hybrid water electrolysis has emerged as a promising alternative to conventional electrolysis for sustainable hydrogen production. The economic potential of replacing water oxidation with organic substrates is assessed. For each substrate, representative electrocatalysts and mechanistic insights are reviewed to identify design principles for optimized ...
Conor Brennan‐Pollak, Lua Henderson, Cian Clarke, Maida A. Costa de Oliveira, Dídac A. Fenoll, Sreedhanya Pallilavalappil, Aswathy Babu, Shaista Jabeen, Pranav K. Gangadharan, Huabin Zhang, Suresh C. Pillai, Paula E. Colavita, Max García‐Melchor   +12 more
wiley   +1 more source