caa a22 4500 388076240 CHVBK 20180307125200.0 cr unu---uuuuu 161130e199911 xx s 000 0 eng 10.1557/S0883769400053446 doi S0883769400053446 pii (NATIONALLICENCE)cambridge-10.1557/S0883769400053446 Schwarz R.B. Hydrogen Storage in Magnesium-Based Alloys [Elektronische Daten] [R.B. Schwarz] Magnesium can reversibly store about 7.7 wt% hydrogen, equivalent to more than twice the density of liquid hydrogen. This high storage capacity, coupled with a low price, suggests that magnesium and magnesium alloys could be advantageous for use in battery electrodes and gaseous-hydrogen storage systems. The use of a hydrogen-storage medium based on magnesium, combined with a fuel cell to convert the hydrogen into electrical energy, is an attractive proposition for a clean transportation system. However, the advent of such a system will require further research into magnesium-based alloys that form less stable hydrides and proton-conducting membranes that can raise the operating temperature of the current fuel cells. Following the U.S. oil crisis of 1974, research into alternative energy-storage and distribution systems was vigorously pursued. The controlled oxidation of hydrogen to form water was proposed as a clean energy system, creating a need for light and safe hydrogen-storage media. Extensive research was done on inter-metallic alloys, which can store hydrogen at densities of about 1500 cm3-H2 gas/ cm3-hydride, higher than the storage density achieved in liquid hydrogen (784 cm3/cm3 at -273°C) or in pressure tanks (˜200 cm3/cm3 at 200 atm). The interest in metal hydrides accelerated following the development of portable electronic devices (video cameras, cellular phones, laptop computers, tools, etc.), which created a consumer market for compact, rechargeable batteries. Initially, nickel-cadmium batteries fulfilled this need, but their relatively low energy density and the toxicity of cadmium helped to drive the development of higher-energy-density, less toxic, rechargeable batteries. Copyright © Materials Research Society 1999 MRS Bulletin Cambridge University Press 24/11(1999-11), 40-44 0883-7694 24:11<40 1999 24 MRS https://doi.org/10.1557/S0883769400053446 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1557/S0883769400053446 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Schwarz R.B. NATIONALLICENCE 773 0- MRS Bulletin Cambridge University Press 24/11(1999-11), 40-44 0883-7694 24:11<40 1999 24 MRS CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge