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science 2014.8 Highly active catalysts for methanol synthesis from CO2
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science 2014.8×îÐÂÎÄÕ£ºÓÉÎ÷°àÑÀ¡¢ÃÀ¹úºÍίÄÚÈðÀÈý¹úÍŶӹ²11λ×÷Õß¹²Í¬Íê³ÉµÄ¸ß»îÐÔ´ß»¯¼Á£¬ÓÃÓÚÖÆ±¸¼×´¼¡ª¡ª Highly active copper-ceria and copper-ceria-titania catalysts formethanol synthesis from CO2¡£ ÇëµãÔÞÖ§³Ö¹þ£¡ The transformation of CO2 into alcohols or other hydrocarbon compounds is challenging because of the difficulties associated with the chemical activation of CO2 by heterogeneous catalysts. Pure metals and bimetallic systems used for this task usually have low catalytic activity. Here we present experimental and theoretical evidence for a completely different type of site for CO2 activation: a copper-ceria interface that is highly efficient for the synthesis of methanol. The combination of metal and oxide sites in the copper-ceria interface affords complementary chemical properties that lead to special reaction pathways for the CO2¡úCH3OH conversion. |
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2014-08-10 16:04:15, 1.08 M
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