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WebB酸L酸浓度之和就等于骨架铝的浓度。由于L酸没有羟基,就无从谈起羟基振动。3540cm-1对应的是Al羟基的振动,也就是B酸的振动。那么我们可以说此处是B酸的直接体现,但同时也是L酸的间接体现,因为L酸的量可以通过骨架Al总量减去B酸量获得。 ... WebCN1067393A CN 91103625 CN91103625A CN1067393A CN 1067393 A CN1067393 A CN 1067393A CN 91103625 CN91103625 CN 91103625 CN 91103625 A CN91103625 A CN 91103625A CN 1067393 A CN1067393 A CN 1067393A Authority CN China Prior art keywords zro acid catalyst agent hours compound solid Prior art date 1991-06-06 Legal … free youtube horror movies full episodes
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WebJul 1, 2016 · Liquid-phase catalytic hydrodeoxygenation of 1,2-decanediol (1,2-DDO) to form 1-decanol was performed over various non-noble metal-loaded acidic catalysts, and Cu loaded on amorphous SiO 2-Al 2 O 3 exhibited a high catalytic activity for the formation of 1-decanol. A high 1-decanol selectivity of 84.7% with a complete 1,2-DDO conversion was … WebOct 11, 2012 · 质子理论Bronsted提出,凡是能放出质子的物质为酸,能与质子结合的物质为碱,酸放出枝子后即形成该酸的共轭碱,同样,所有的碱也有着共根据质子论的定义, … WebMay 1, 2013 · The role of TiO 2 as an additive in the Pt/WO 3-ZrO 2 catalyst system over the catalytic activity in the hydroisomerization of n-hexane was investigated. The Pt/WO 3-ZrO 2-TiO 2 catalysts were synthesized by two steps: the first step consisted in the WO x-ZrO 2-TiO 2 mixed oxides synthesis by the coprecipitation technique, and in a second step the … fashion show futuristic