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Editorial

Hydrides: Fundamentals and Applications

1
Department of Chemistry, University of Hawaii, Honolulu, HI 96822, USA
2
Department of Mechanical Engineering, WPI International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Fukuoka 819-0395, Japan
3
International Research Center for Hydrogen Energy, WPI International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Fukuoka 819-0395, Japan
*
Author to whom correspondence should be addressed.
Energies 2016, 9(4), 308; https://doi.org/10.3390/en9040308
Submission received: 25 March 2016 / Accepted: 25 March 2016 / Published: 22 April 2016
(This article belongs to the Special Issue Hydrides: Fundamentals and Applications)
Both the Japanese and Hawaiian archipelagos are both completely devoid of petroleum resources. Thus the coauthors of this Editorial live in societies that feel an urgent need to develop alternative energy sources. The utilization of hydrogen as an energy carrier in the form of metal hydrides has long been proposed as a key component in strategies for the harnessing of renewable energy sources. In the past, these considerations alone were the impetus for our studies of metal hydrides, however, the motivation for research in this area is evolving. PEM fuel cell powered automobiles have recently been commercialized. This has resulted in efforts to develop metal hydride technologies that will enable rapid expansion of the already existing market that is based on high-pressure hydrogen. The scope of the potential practical applications of metal hydrides has also been extended beyond hydrogen storage to ionic conductors and thermal energy storage. Our goal in assembling this special issue of Energies was to provide readers with a sense of the future directions that can be anticipated in metal hydride research in view of these changes. We hoped to accomplish this by providing a sampling of the variety of cutting-edge research efforts on metal hydrides that are currently underway throughout the scientific world.
We are now happy to present the 15 outstanding contributions (13 original research papers and two reviews) that can be found within this special issue [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]. With the inclusion of authors from 16 different countries, the issue truly presents a global view. This volume also covers a wide range materials (classical metal hydrides, complex hydrides, and metal hydride composites); and applications (onboard hydrogen storage, off-board hydrogen storage, and thermal energy storage). Although none of the papers focus directly on battery applications or ionic conductors, the findings reported here are also relevant to these topic as well.
We wish to express our deep gratitude to all the contributors the special issue and those that served as reviewers.

References

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MDPI and ACS Style

Jensen, C.M.; Akiba, E.; Li, H.-W. Hydrides: Fundamentals and Applications. Energies 2016, 9, 308. https://doi.org/10.3390/en9040308

AMA Style

Jensen CM, Akiba E, Li H-W. Hydrides: Fundamentals and Applications. Energies. 2016; 9(4):308. https://doi.org/10.3390/en9040308

Chicago/Turabian Style

Jensen, Craig M., Etsuo Akiba, and Hai-Wen Li. 2016. "Hydrides: Fundamentals and Applications" Energies 9, no. 4: 308. https://doi.org/10.3390/en9040308

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