Oxidative coupling and ring opening of furan on Ag(110): Formation of maleic anhydride, benzene, and bifuran
Oxidative coupling and ring opening of furan on Ag(110): Formation of maleic anhydride, benzene, and bifuran
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Ag(110) 上呋喃的氧化偶联和开环：形成马来酸酐、苯和联呋喃
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
R. Madix
中科院分区：
文献类型：
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作者：
W. W. Crew;R. Madix
TPRS, EELS, and isotope experiments show that furan reacts with active oxygen on Ag(110) to form CO[sub 2], H[sub 2]O, and small amounts of the partially oxidized products maleic anhydride, bifuran, and benzene that evolve between 520 and 560 K. The first step in furan combustion is C-H bond activation by O[sub (a)], followed by O[sub (a)] attack at the [alpha]-carbon at 308 K. [sup 18]O[sub (a)] experiments prove that maleic anhydride is formed via intermediates where the furan ring has been cleaved. This contrasts with mechanisms proposed for maleic anhydride production from furan over VPO catalysts. 36 refs., 12 figs., 2 tabs.
