Yang Bingyu, Leclercq Loïc, Schmitt Véronique, Pera-Titus Marc, Nardello-Rataj Véronique
Univ. Lille , CNRS , Centrale Lille , ENSCL , Univ. Artois , UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide , F-59000 Lille , France . Email:
Centre de Recherche Paul Pascal , 115 Avenue du Dr Albert Schweitzer , F-33600 Pessac , France.
Chem Sci. 2018 Oct 15;10(2):501-507. doi: 10.1039/c8sc03345e. eCollection 2019 Jan 14.
Supramolecular preorganization and interfacial recognition can provide useful architectures for colloidal building. To this aim, a novel approach, based on colloidal tectonics involving two surface-active particles containing both recognition and catalytic sites, has been developed for controlling the formation and the properties of Pickering emulsions. This was illustrated by the combination of dodecyltrimethylammonium phosphotungstate nanoparticles, [C][PWO], and silica particles functionalized with alkyl and sulfonic acid groups, [C /SOH]@SiO. The interfacial self-assembly occurs by the penetration of the alkyl chains of [C /SOH]@SiO into the [C][PWO] supramolecular porous structure constituted of polar and apolar regions. The emulsions were used as a non-nitric acid route for adipic acid synthesis from the one-pot oxidative cleavage of cyclohexene oxide with aqueous HO. The catalytic performance was significantly boosted due to the synergistic interactions between the particles.
超分子预组织和界面识别可为胶体构建提供有用的结构。为此，一种基于胶体构造的新方法已被开发出来，该方法涉及两个同时含有识别位点和催化位点的表面活性粒子，用于控制Pickering乳液的形成和性质。以十二烷基三甲基磷酸钨纳米颗粒[C][PWO]和用烷基和磺酸基团功能化的二氧化硅颗粒[C/SOH]@SiO₂的组合为例进行了说明。界面自组装是通过[C/SOH]@SiO₂的烷基链渗透到由极性和非极性区域构成的[C][PWO]超分子多孔结构中而发生的。这些乳液被用作一种非硝酸路线，用于通过环氧环己烷与过氧化氢水溶液的一锅氧化裂解来合成己二酸。由于颗粒之间的协同相互作用，催化性能得到了显著提高。
