申请人:NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
公开号:US20160002271A1
公开(公告)日:2016-01-07
Provided is a method for efficiently producing alkoxysilanes that are useful as various functional chemicals. In order to produce alkoxysilanes efficiently, an ethoxy- or methoxysilane and an alcohol are caused to react using, as a catalyst, for instance an inorganic solid acid having a regular-pore and/or layered structure. Zeolites, montmorillonites or the like can be used as the inorganic solid acid. When a zeolite is used as the catalyst, the silica/alumina ratio of the zeolite ranges preferably from 5 to 1000. The reaction can be promoted through irradiation of microwaves.
O2 is acting! A nanosized hydroxylapatite‐supported Au nanoparticle (NP) catalyst exhibited high activity under aerobic conditions, and various silyl ethers could be obtained from diverse combinations of silanes with alcohols. Moreover, O2 was found to act not as a stoichiometric oxidizing reagent, but as a non‐consumed promoter, significantly boosting the catalytic activity of AuNPs (see figure).
O 2正在表演!纳米羟基磷灰石负载的金纳米颗粒(NP)催化剂在好氧条件下表现出高活性,并且可以通过硅烷与醇的各种组合获得各种甲硅烷基醚。此外,发现O 2并不是化学计量的氧化剂,而是非消耗型促进剂,从而大大增强了AuNPs的催化活性(见图)。
Catalytic Dehydrogenative Coupling of Hydrosilanes with Alcohols for the Production of Hydrogen On-demand: Application of a Silane/Alcohol Pair as a Liquid Organic Hydrogen Carrier
作者:David Ventura-Espinosa、Alba Carretero-Cerdán、Miguel Baya、Hermenegildo García、Jose A. Mata
DOI:10.1002/chem.201700243
日期:2017.8.10
a Ru complex, kinetically favourable and allows rapid molecular hydrogen generation on‐demand at room temperature, under air, and without any additive. The pair silane/alcohol is a potential liquid organichydrogencarrier (LOHC) for energy storage over long periods in a safe and secure way. Silanes and alcohols are non‐toxic compounds and do not require special handling precautions such as high pressure
Copper Nanoparticles Supported on Doped Graphenes as Catalyst for the Dehydrogenative Coupling of Silanes and Alcohols
作者:Juan F. Blandez、Ana Primo、Abdullah M. Asiri、Mercedes Álvaro、Hermenegildo García
DOI:10.1002/anie.201405669
日期:2014.9.5
not with boric acid, containing Cu2+ ions at 900 °C under inert atmosphere. The resulting Cu‐G materials containing about 17 wt % Cu NPs (from 10 to 200 nm) exhibit high catalytic activity for the dehydrogenativecoupling of silanes with alcohols. The optimal material consisting on Cu‐(B)G is more efficient than Cu NPs on other carbon supports.
Hydrolytic condensation of trialkoxysilanes in the presence of alkali metal and copper(ii) ions. Influence of the reaction conditions on the structure of Cu/M organosiloxanes
作者:Yu. A. Molodtsova、Yu. A. Pozdnyakova、I. V. Blagodatskikh、A. S. Peregudov、O. I. Shchegolikhina
DOI:10.1023/b:rucb.0000019892.77263.09
日期:2003.12
organosiloxanes was examined as a result of hydrolytic condensation of organotrialkoxysilanes in the presence of copper(ii) and sodium or potassium ions. High selectivity of the synthesis of copper/sodium(potassium) organosiloxanes having desired structures can be achieved by choosing the reaction conditions.
作为有机三烷氧基硅烷在铜 (ii) 和钠或钾离子存在下水解缩合的结果,研究了多面体铜/钠(钾)有机硅氧烷的形成。通过选择反应条件可以实现合成具有所需结构的铜/钠(钾)有机硅氧烷的高选择性。