Formation process of [Bi2H12]2- from [BH4]- during the dehydrogenation reaction of Mg(BH 4)2

Yigang Yan, Haiwen Li, Hideki Maekawa, Masakazu Aoki, Tatsuo Noritake, Mitsuru Matsumoto, Kazutoshi Miwa, Shin Ichi Towata, Shin Ichi Orimo

Research output: Contribution to journalArticle

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Abstract

The existence of Mg(B12H12) as an intermediate compound during the dehydrogenation process of Mg(BH4)2 has been verified. To elucidate the formation process of Mg(B12H 12), the dehydrogenation products of Mg(BH4)2 at different temperatures were characterized via X-ray diffraction and 11B magic angle spinning NMR measurements. The experimental results indicate that several new intermediate compounds such as Mg(B2H 6) and Mg(B5H9) or Mg(B5H 8)2 are expected to be formed prior to the formation of Mg(B12H12). Thus, it is suggested that the formation of [B12H12]2- from [BH4]- occurs via the gradual evolution of the B-H complex anion, i.e., [BH 4]- → [B2H6]2- → [B5H9]2- or [B5H 8]- → [B12H12]2-.

Original languageEnglish
Pages (from-to)1443-1446
Number of pages4
JournalMaterials Transactions
Volume52
Issue number7
DOIs
Publication statusPublished - Jul 1 2011

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Dehydrogenation
dehydrogenation
Magic angle spinning
Anions
Negative ions
Nuclear magnetic resonance
X ray diffraction
metal spinning
anions
nuclear magnetic resonance
products
diffraction
Temperature
x rays
temperature

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Formation process of [Bi2H12]2- from [BH4]- during the dehydrogenation reaction of Mg(BH 4)2. / Yan, Yigang; Li, Haiwen; Maekawa, Hideki; Aoki, Masakazu; Noritake, Tatsuo; Matsumoto, Mitsuru; Miwa, Kazutoshi; Towata, Shin Ichi; Orimo, Shin Ichi.

In: Materials Transactions, Vol. 52, No. 7, 01.07.2011, p. 1443-1446.

Research output: Contribution to journalArticle

Yan, Y, Li, H, Maekawa, H, Aoki, M, Noritake, T, Matsumoto, M, Miwa, K, Towata, SI & Orimo, SI 2011, 'Formation process of [Bi2H12]2- from [BH4]- during the dehydrogenation reaction of Mg(BH 4)2', Materials Transactions, vol. 52, no. 7, pp. 1443-1446. https://doi.org/10.2320/matertrans.MA201002
Yan, Yigang ; Li, Haiwen ; Maekawa, Hideki ; Aoki, Masakazu ; Noritake, Tatsuo ; Matsumoto, Mitsuru ; Miwa, Kazutoshi ; Towata, Shin Ichi ; Orimo, Shin Ichi. / Formation process of [Bi2H12]2- from [BH4]- during the dehydrogenation reaction of Mg(BH 4)2. In: Materials Transactions. 2011 ; Vol. 52, No. 7. pp. 1443-1446.
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abstract = "The existence of Mg(B12H12) as an intermediate compound during the dehydrogenation process of Mg(BH4)2 has been verified. To elucidate the formation process of Mg(B12H 12), the dehydrogenation products of Mg(BH4)2 at different temperatures were characterized via X-ray diffraction and 11B magic angle spinning NMR measurements. The experimental results indicate that several new intermediate compounds such as Mg(B2H 6) and Mg(B5H9) or Mg(B5H 8)2 are expected to be formed prior to the formation of Mg(B12H12). Thus, it is suggested that the formation of [B12H12]2- from [BH4]- occurs via the gradual evolution of the B-H complex anion, i.e., [BH 4]- → [B2H6]2- → [B5H9]2- or [B5H 8]- → [B12H12]2-.",
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AU - Li, Haiwen

AU - Maekawa, Hideki

AU - Aoki, Masakazu

AU - Noritake, Tatsuo

AU - Matsumoto, Mitsuru

AU - Miwa, Kazutoshi

AU - Towata, Shin Ichi

AU - Orimo, Shin Ichi

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