Nanoengineered chiral Pt-Ir alloys for high-performance enantioselective electrosynthesis.

Nanoengineered chiral Pt-Ir alloys for high-performance enantioselective electrosynthesis.
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用于高性能对映体选择性电合成的纳米工程手性铂-Ir合金。

DOI:
10.1038/s41467-021-21603-8
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发表时间:
2021-02-26
影响因子:
16.6
通讯作者:
Kuhn A
Kuhn A
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Butcha S;Assavapanumat S;Ittisanronnachai S;Lapeyre V;Wattanakit C;Kuhn A

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高效的手性催化剂的设计是至关重要的,因为它允许生成对映体纯的化合物。在过去的几十年里,人们已经做出了巨大的努力,开发具有对映体选择性的材料,用于从传感到催化和分离的各种潜在应用。近年来,在介孔金属中发现了手性特征。虽然这些monoclonal矩阵显示有趣的对映体选择性,他们遭受相当低的稳定性,构成了一个重要的应用障碍。在这里,一个简单的策略,以规避这一限制,通过使用纳米结构的铂铱合金。这些材料可以成功地编码与手性信息,通过共电沉积从Pt和Ir盐在同时存在的手性化合物和溶致液晶作为不对称模板和介孔剂,分别。当用于不对称电合成(> 95%ee)时,该合金能够显著区分手性化合物和大大改善的对映选择性,并且具有高的电化学稳定性。在过去的几十年里,人们在开发具有对映选择性的材料方面做出了巨大的努力。在这里,作者提出了一种纳米结构的手性印迹金属合金,表现出高的对映选择性和稳定性的手性分子的电合成。
The design of efficient chiral catalysts is of crucial importance since it allows generating enantiomerically pure compounds. Tremendous efforts have been made over the past decades regarding the development of materials with enantioselective properties for various potential applications ranging from sensing to catalysis and separation. Recently, chiral features have been generated in mesoporous metals. Although these monometallic matrices show interesting enantioselectivity, they suffer from rather low stability, constituting an important roadblock for applications. Here, a straightforward strategy to circumvent this limitation by using nanostructured platinum-iridium alloys is presented. These materials can be successfully encoded with chiral information by co-electrodeposition from Pt and Ir salts in the simultaneous presence of a chiral compound and a lyotropic liquid crystal as asymmetric template and mesoporogen, respectively. The alloys enable a remarkable discrimination between chiral compounds and greatly improved enantioselectivity when used for asymmetric electrosynthesis (>95 %ee), combined with high electrochemical stability. Tremendous efforts have been made over the past decades regarding the development of materials with enantioselective properties. Here, the authors present a nanostructured chiral imprinted metal alloy that exhibits high enantioselectivity and stability for the electrosynthesis of chiral molecules.
DOI: 10.1126/science.278.5339.838
发表时间: 1997-10-31
期刊: SCIENCE
影响因子: 56.9
作者:
Attard, GS;Bartlett, PN;Wang, JH
通讯作者: Wang, JH
DOI: 10.1016/0022-0728(94)03594-s
发表时间: 1995-01-03
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发表时间: 2011-08-16
期刊: LANGMUIR
影响因子: 3.9
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Kyriakou, Georgios;Beaumont, Simon K.;Lambert, Richard M.
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作为模块化对映选择性催化剂的单组分和多组分手性超粒子
DOI: 10.1038/s41467-019-12134-4
发表时间: 2019-10-23
影响因子: 16.6
作者:
Li, Si;Liu, Juan;Kotov, Nicholas A.
通讯作者: Kotov, Nicholas A.