JP2009190966A - 水素貯蔵材料及び関連方法 - Google Patents
水素貯蔵材料及び関連方法 Download PDFInfo
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Abstract
【解決手段】 錯水素化塩と水素化ホウ素触媒とを含有し、水素化ホウ素触媒がBH4基と、IV族金属、V族金属又はIV族金属及びV族金属の組合せとを含有する組成物。水素貯蔵組成物は、錯水素化塩と水素化ホウ素触媒を含有する混合物を化合させる工程によって製造される。
【選択図】 図1
Description
式中のM1はナトリウム又はカリウムとすることができ、M2はリチウム又はカリウムとすることができ、0≦x≦約0.8及び1≦p≦3である。アラネートの具体例には、ナトリウムアラネート、カリウムアラネート、混合ナトリウム・リチウムアラネート、混合ナトリウム・カリウムアラネート、及び混合カリウム・リチウムアラネートがある。一実施形態では、錯水素化塩はナトリウムアラネートを含む。別の実施形態では、錯水素化塩はマグネシウムアラネートを含む。他の実施形態では、錯水素化塩はカルシウムアラネートを含む。
[触媒の合成] 触媒を、エーテル中での対応する塩化物と水素化ホウ素リチウムとの交換反応により合成した。代表的な手順は下記の通りである。1.5〜2gの塩化チタンもしくはジルコニウム錯体を、150mLの無水ジエチルエーテル中で攪拌しながら、所定量の水素化ホウ素リチウム及び所望に応じて、水素化アルミニウムリチウムと反応させた。数時間後、反応混合物を濾過し、濾液から溶剤を蒸発させた。固形残渣を減圧下室温で数時間乾燥した。反応物質のモル比を表1に示す。Cp2TiBH4及びCpTi(BH4)2を文献記載の方法により合成した。(Lucas, C. R., Bis(h5-cyclopentadienyl)[tetrahydroborato(1-)]titanium. Inorganic Syntheses 1977, 17, 91-4; Soloveichik, G. L.; Bulychev, B. M.; Semenenko, K. N., Synthesis of titanium(III) monocyclopentadienyltetrahydroborates. Koordinatsionnaya Khimiya 1978, 4, (8), 1216-22)Ti(BH4)3の場合、この不安定な錯体の安定化のために過剰量のLiBH4を用いた。水素化ホウ素ジルコニウム(III)の場合、1当量のLiAlH4を用いてZr(IV)をZr(III)に還元した。
[材料試験] Sieverts型装置(PCTPro−2000、Hy−EnergyScientificInstruments,LLC)にて昇温脱着(TPD)実験を行った。約200mgの触媒添加NaAlH4を既知の容量にて初期には減圧下で1℃/分の速度で250℃まで加熱した。次いで水素の放出により発生する圧力をH2重量%に変換した。脱水素サンプルを80〜120℃にて860psi(5.9MPa)のH2でで60時間まで再チャージした。脱水素の結果を図1に示す。水素添加(再チャージ)の結果を図2に示す。
Claims (10)
- 錯水素化塩と水素化ホウ素触媒とを含有する組成物であって、前記水素化ホウ素触媒がBH4基と、IV族金属、V族金属又はIV族金属及びV族金属の組合せとを含有する、組成物。
- 錯水素化塩と水素化ホウ素化合物との反応生成物を含有し、前記水素化ホウ素触媒がBH4基と、IV族金属、V族金属又はIV族金属及びV族金属の組合せとを含有する、組成物。
- 錯水素化塩と水素化ホウ素触媒を含有する混合物を化合させる工程を含む、水素貯蔵組成物の製造方法。
- 前記水素化ホウ素触媒がさらに配位子を含有する、請求項1又は請求項2記載の組成物又は請求項3記載の方法。
- 前記配位子がシクロペンタジエニルを含む、請求項4記載の組成物又は方法。
- 前記錯水素化塩がアラネート又は水素化ホウ素金属を含む、請求項1又は請求項2記載の組成物又は請求項3記載の方法。
- 錯水素化塩と水素化ホウ素触媒の合計重量に基づく重量%表示で、錯水素化塩の含有量が約75〜約99重量%であり、水素化ホウ素触媒の含有量が約1〜約25重量%である、請求項1又は請求項2記載の組成物又は請求項3記載の方法。
- 前記水素化ホウ素触媒がCpTi(BH4)2-xClx(式中のx=0又は1)を含有する、請求項1又は請求項2記載の組成物又は請求項3記載の方法。
- 粉砕法を用いて錯水素化塩と水素化ホウ素触媒を化合させる、請求項3記載の方法。
- 混合物がさらに溶剤を含有し、前記方法が所望に応じて溶剤を蒸発させる工程を含む、請求項3又は請求項9記載の方法。
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US12/031,336 US7754641B2 (en) | 2008-02-14 | 2008-02-14 | Hydrogen storage material and related processes |
US12/031,336 | 2008-02-14 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011207747A (ja) * | 2010-03-26 | 2011-10-20 | Rohm & Haas Co | 水素化ホウ素化合物の製造方法 |
JP2021022501A (ja) * | 2019-07-29 | 2021-02-18 | 株式会社Kri | アンモニア貯蔵・供給システム及び燃料電池システム |
Families Citing this family (9)
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GB0715649D0 (en) * | 2007-08-10 | 2007-09-19 | Isis Innovation | Hydrogen storage material |
US8613902B2 (en) * | 2008-04-04 | 2013-12-24 | Los Alamos National Security, Llc | Hydrogen production using ammonia borane |
WO2013115889A2 (en) * | 2011-11-18 | 2013-08-08 | The Curators Of The University Of Missouri | Process and device for the production of polyhedral boranes |
US9947947B2 (en) * | 2012-08-23 | 2018-04-17 | Intelligent Energy Inc. | Mixed metal borohydrides |
CN102976268B (zh) * | 2012-11-21 | 2014-12-03 | 宁波申江科技股份有限公司 | 一种硼氢化锂水解发生氢气的方法及其反应装置 |
US10138122B2 (en) | 2017-04-10 | 2018-11-27 | Savannah River Nuclear Solutions, Llc | Mechanochemical solid/liquid reaction in formation of alane |
US11453585B2 (en) | 2019-07-30 | 2022-09-27 | Savannah River Nuclear Solutions, Llc | Formation of high quality alane |
US20210114870A1 (en) * | 2019-10-21 | 2021-04-22 | John A. Bognar | Thermal gas generator |
CN114906811B (zh) * | 2022-03-31 | 2023-08-18 | 河南师范大学 | 一种硼氢化合物钾盐kb9h14的合成方法 |
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JP2021022501A (ja) * | 2019-07-29 | 2021-02-18 | 株式会社Kri | アンモニア貯蔵・供給システム及び燃料電池システム |
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JP5484745B2 (ja) | 2014-05-07 |
US8193113B2 (en) | 2012-06-05 |
US20090209409A1 (en) | 2009-08-20 |
US20100240528A1 (en) | 2010-09-23 |
US7754641B2 (en) | 2010-07-13 |
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