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Journal of Materials Chemistry Hydrogen storage & generation theme issue
09 May 2008
Now published - a theme issue highlighting some of the latest research on hydrogen storage & generation
Hot article: Dry photolithographic patterning process for organic electronic devices using supercritical carbon dioxide as a solvent
30 April 2008
Read Christopher Ober and colleagues' hot article
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30 April 2008
Read Charl Faul and colleagues' hot article
Contents list for Journal of Materials Chemistry, issue 20, 2008
Front cover
J. Mater. Chem., 2008, 18, 2285
DOI: 10.1039/b806832c
Contents
J. Mater. Chem., 2008, 18, 2287
DOI: 10.1039/b806833j
Editorial
Theme issue: materials chemistry for hydrogen storage and generation
J. Mater. Chem., 2008, 18, 2295
DOI: 10.1039/b805758n
This theme issue of Journal of Materials Chemistry highlights some of the latest innovative research in materials relating to hydrogen generation and storage. This is one of the foremost examples of how materials chemistry can enable the new technologies that we require to solve today's major problems, here specifically in energy and environment. John Irvine, the Guest Editor, introduces the issue and the importance of the field.
Highlight
Metal oxide photoanodes for solar hydrogen production
Bruce D. Alexander, Pawel J. Kulesza, Iwona Rutkowska, Renata Solarska and Jan Augustynski,
J. Mater. Chem., 2008, 18, 2298
DOI: 10.1039/b718644d
Photolysis of water at semiconductor surfaces offers a renewable, clean hydrogen source. Material properties dictate their utility. We refocus on the more salient properties and review ways (i.e.
tandem cells
) of improving performance.
Feature Articles
Ammonia for hydrogen storage: challenges and opportunities
Asbjørn Klerke, Claus Hviid Christensen, Jens K. Nørskov and Tejs Vegge,
J. Mater. Chem., 2008, 18, 2304
DOI: 10.1039/b720020j
Ammonia stored in metal ammines like Mg(NH3)6Cl2 and Ca(NH3)8Cl2 provides a promising hydrogen storage medium with high capacity, fast kinetics, improved safety compared to liquid ammonia, and a carbon-free alternative for the transport sector.
Solar hydrogen production with nanostructured metal oxides
Roel van de Krol, Yongqi Liang and Joop Schoonman,
J. Mater. Chem., 2008, 18, 2311
DOI: 10.1039/b718969a
This review discusses photo-electrochemical devices for water splitting, for use in direct conversion of solar energy into hydrogen. Particular attention is paid to nanostructured metal oxides with high aspect ratios, which represent promising photo-active materials.
Lithium nitrides, imides and amides as lightweight, reversible hydrogen stores
Duncan H. Gregory,
J. Mater. Chem., 2008, 18, 2321
DOI: 10.1039/b801021h
This feature article presents an overview of recent fast-moving developments in nitrogen containing complex hydrides (imides, amides) and their dehydrogenated parents (nitrides) as high capacity, reversible hydrogen stores.
Highly efficient high temperature electrolysis
Anne Hauch, Sune Dalgaard Ebbesen, Søren Højgaard Jensen and Mogens Mogensen,
J. Mater. Chem., 2008, 18, 2331
DOI: 10.1039/b718822f
High temperature electrolysis has the potential of producing hydrogen highly efficiently. This review describes the state of the art. Substantial R&D is needed to develop new or improved electrode materials.
Papers
Photoelectrochemical and water photoelectrolysis properties of ordered TiO2 nanotubes fabricated by Ti anodization in fluoride-free HCl electrolytes
Nageh K. Allam, Karthik Shankar and Craig A. Grimes,
J. Mater. Chem., 2008, 18, 2341
DOI: 10.1039/b718580d
The AM 1.5 photoelectrochemical and water photoelectrolysis properties of nanotubular TiO2 electrodes prepared in aqueous or ethylene glycol solutions containing HCl in combination with H2O2 are considered.
(La0.75Sr0.25)0.95Mn0.5Cr0.5O3 as the cathode of solid oxide electrolysis cells for high temperature hydrogen production from steam
Xuedi Yang and John T. S. Irvine,
J. Mater. Chem., 2008, 18, 2349
DOI: 10.1039/b800163d
Ni/YSZ cathodes for steam electrolysis can only operate under reducing conditions. In low contents of H2 or at low currents, chrome-manganite perovskite cathodes provide a promising alternative.
The synthesis and structural investigation of mixed lithium/sodium amides
Rebecca L. Lowton, Martin O. Jones, William I. F. David, Simon R. Johnson, Marco Sommariva and Peter P. Edwards,
J. Mater. Chem., 2008, 18, 2355
DOI: 10.1039/b719673n
The solid-state reaction of LiNH2 with NaNH2 results in the formation of two mixed metal amide phases, Li3Na(NH2)4 and LiNa2(NH2)3. LiNH2 and Li3Na(NH2)4 exhibit structural non-stoichiometry and are the two endpoints of the solid solution of NaNH2 in LiNH2.
Experimental studies of 
-AlD3 and 
-AlD3versus first-principles modelling of the alane isomorphs
Sabrina Sartori, Susanne M. Opalka, Ole Martin Løvvik, Matylda N. Guzik, Xia Tang and Bjørn C. Hauback,
J. Mater. Chem., 2008, 18, 2361
DOI: 10.1039/b718896j
The thermal phase behaviour of cryomilled - and -AlD3 was investigated experimentally and theoretically. The goal is to establish fundamental understanding of alanes for improving their hydrogen storage properties.
Photocatalytic production of hydrogen on Ni/NiO/KNbO3/CdS nanocomposites using visible light
Jina Choi, Su Young Ryu, William Balcerski, T. K. Lee and Michael R. Hoffmann,
J. Mater. Chem., 2008, 18, 2371
DOI: 10.1039/b718535a
A new nanocomposite material, Ni/NiO/KNbO3/CdS, is shown to be an efficient photocatalyst for the production of H2 from water with visible light illumination (
> 400 nm).
Effects of the preparation method of the ternary CdS/TiO2/Pt hybrid photocatalysts on visible light-induced hydrogen production
Hyunwoong Park, Wonyong Choi and Michael R. Hoffmann,
J. Mater. Chem., 2008, 18, 2379
DOI: 10.1039/b718759a
Hybrid catalysts prepared by deposition of CdS onto Pt-coated TiO2 [CdS/(Pt-TiO2)] are more efficient by factors of 3 to 30 at producing H2 from water under visible light than Pt-(CdS/TiO2) hybrids.
Enhanced reducibility of ceria–YSZ composites in solid oxide electrodes
Guntae Kim, John M. Vohs and Raymond J. Gorte,
J. Mater. Chem., 2008, 18, 2386
DOI: 10.1039/b718931a
Solid oxide electrodes based on ceria infiltrated into porous YSZ exhibit high electronic conductivities due to interactions between ceria and YSZ that lead to enhanced reduction of the ceria.
Back cover
J. Mater. Chem., 2008, 18, 2391
DOI: 10.1039/b806834h
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