砷化鎵廢料之鎵元素回收並應用於固態氧化物燃料電池之電解質材料

隨著高科技產業進步發展，每年電子產業製造過程中製造的研磨污泥，其中砷化鎵廢棄物的比例佔約70%以上。本研究藉由砷化鎵廢料回收之鎵元素，透過燃燒合成法合成應用於固態氧化物燃料電池之電解質材料-鑭鍶鎵鎂(LSGM)氧化物。本實驗使用酸溶及鹼溶的方式將鎵元素從廢料中溶出，在含鎵的溶液中加入鑭、鍶、鎂等硝酸鹽類，進行燃燒合成法合成電解質材料-鑭鍶鎵鎂（LSGM）氧化物粉末，將粉末進行XRD晶相分析，分析結果與S.V. Kesapragada 等人之研究製備粉末的晶相相符合。本研究成功從砷化鎵廢料回收鎵元素並製備出鑭鍶鎵鎂（LSGM）氧化物粉末。

關鍵字

固態氧化物燃料電池；酸溶法；燃燒合成法；鑭鍶鎵鎂

並列摘要

Along with the development of high-tech industries, electronics industry produced the content of gallium arsenide scrap is above 70% from the manufacturing process every year. This study that the recovered gallium from gallium arsenide scrap could be applied to preparation of electrolyte materials of SOFC. From these experiments , the extraction of gallium from a GaAs scrap with acid and base , then the electrolytes materials LSGM powder was synthesized via glycine-nitrate process (GNP) by adding lanthanum nitrate、strontium nitrate and magnesium nitrate to extract which contain gallium. The LSGM powders were analyzed crystalline phase by X-ray diffraction technique. The result with crystal analysis and phase are the same as S.V. Kesapragada et al’s study. This study successfully gallium from gallium arsenide waste recycling and fabricated elements lanthanum strontium gallium magnesium (LSGM) oxide powder.

並列關鍵字

SOFC ； Combustion synthesis ； Acid Dissolution Method ； LSGM

參考文獻

[13] 林偉德，「以溶劑萃取與離子交換樹脂自砷化鎵廢液回收鎵和砷」，碩士論文，國立台北科技大學化學工程研究所，台北，2013。

[7] D. V. Shenai-Khatkhate ; R. J. Goyette ; Dicarlo Jr., R. L.; Dripps, G. Environment, health and safety issues for sources used in MOVPE growth of compound semiconductors. Journal of Crystal Growth. 2004, 272: 816. doi:10.1016/j.jcrysgro.2004.09.007

[14] N. Trofimenko, H. Ullmann, Solid State Ionics 118（1999）215-227

[21] N. Trofimenko, H. Ullmann, Solid State Ionics 124（1999）263-270

[23] K. Yamaji, T. Horita, M. Ishikawa et al, Solid State Ionics 108（1998）415-421

國際替代計量

砷化鎵廢料之鎵元素回收並應用於固態氧化物燃料電池之電解質材料

未授權

主題瀏覽