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| Title: | SINGLE- AND DOUBLE-CATIONS BOROHYDRIDES FOR HYDROGEN STORAGE APPLICATIONS | |
| DOI No: | 10.1142/9789812838025_0011 | |
| Source: | MATERIALS ISSUES IN A HYDROGEN ECONOMY (pp 124-129) | |
| Author(s): | SHIN-ICHI ORIMO
Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan YUKO NAKAMORI Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan HAI-WEN LI Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan MOTOAKI MATSUO Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan TOYOTO SATO Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan NOBUKO OHBA Toyota Central R&D Labs., Nagakute, Aichi 480-1192, Japan KAZUTOSHI MIWA Toyota Central R&D Labs., Nagakute, Aichi 480-1192, Japan SHIN-ICHI TOWATA Toyota Central R&D Labs., Nagakute, Aichi 480-1192, Japan |
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| Abstract: | The thermal desorption temperature Td of single-cation borohydrides was found to decrease with increasing the value of the Pauling electronegativity χP of the cation (metal). We examined Td of double-cation borohydrides ZrLin-4(BH4)n, and then the correlation between Td and χP determined for single-cation borohydrides is extended to double-cation ones. Td for ZrLin-4(BH4)n with the composition n from 4 to 6 continuously increases from 440 K to 650 K, and approaches that of LiBH4, 740 K: Td correlates with the averaged χP calculated from n. The extended correlation might lead to precise adjustments in the thermodynamical stabilities of borohydrides. | |
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