Role of surface phosphorus complexes on the oxidation of porous carbons

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• 作者：M.J. Valero-Romero ; F.J. Garcí ; a-Mateos ; J. Rodrí ; guez-Mirasol ; ^{mirasol@uma.es} ; T. Cordero
• 关键词：Phosphorus surface groups ; Carbon inhibition oxidation ; Surface redox functionality ; Activated carbon ; Temperature-programmed desorption ; Carbon reduction
• 刊名：Fuel Processing Technology
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：157
• 期：Complete
• 页码：116-126
• 全文大小：1271 K
• 卷排序：157

文摘

Chemical activation with H3PO4 produces carbons with thermally stable P surface groups. P surface groups react with oxygen, prior to carbon gasification, through C-P to C-O-P bonds. C-O-P type surface groups decompose to C-P ones after thermal treatments at high temperatures. C-P type surface groups confer to the carbon surface a redox functionality. Porous carbons with high oxygen content and oxidation resistance are reported.