Search History Select to load keywords (subject equals "ตัวเร่งปฏิกิริยา") AND (subject equals "Catalysts") AND (subject equals "Proton exchange membrane fuel cells") AND (author equals "ณัฏฐภักดิ์ กิติภัทย์พิบูลย์") AND (subject equals "ไทเทเนียมไดออกไซด์")
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