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先進オリエントサイクル研究(Phase I),7; 回収白金族及びTc, Reの電極触媒利用

Advanced ORIENT cycle study (Phase I), 7; Application of electrodeposit PGMs to electrode for hydrogen generation

小澤 正基; 小山 真一  ; 山岸 功 ; 水口 浩司*; 藤田 玲子*

Ozawa, Masaki; Koyama, Shinichi; Yamagishi, Isao; Mizuguchi, Koji*; Fujita, Reiko*

高レベル廃液中に含まれる白金族核分裂生成物(Pd, Ru, Rh)及びTcを電解法により回収し、水素製造用の触媒電極として利用することを検討している。模擬高レベル廃液から白金族及びTc(あるいはTcの模擬元素Re)を析出させた電極は、析出前の白金(Pt)電極よりも水素製造用の電極触媒の効果があることを確認した。

Electro-deposition of light platinum group metals, PGMs (Ru, Rh and Pd), and Tc from high-level liquid waste (HLLW) has been studied for development of an advanced nuclear fuel cycle (Adv.-ORIENT Cycle). PGMs and Tc were deposited on Pt electrode form a simulated HLLW. The Pt electrode with PGMs and/or Tc deposits showed higher catalytic reactivity during electrolysis of water than the Pt electrode without deposits.

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