The Materials Chemistry of Cyanogels

这一奖项授予普林斯顿大学的安德鲁·B·博卡斯利，由化学部的先进材料计划和数学和物理科学局的多学科研究办公室联合支持。该提案涉及氰凝胶的材料化学，这是一种新型的过渡金属氰酸盐配位聚合物，在水介质中制备时会经历溶胶-凝胶转变过程。一种典型的由四氯钯和六氰基钴盐制备的氰凝胶含有95%的水，并且是无限稳定的。其他基于铂或锡和钴氰化物或铁氰化物的氰凝胶将被合成和表征。这项研究的目的是表征氰凝胶的结构和化学计量，探索其热化学，以制备作为凝胶组成函数的固态材料，并探索衍生固态材料在材料科学、催化和电催化领域的应用。氰凝胶是一种具有新颖溶液性质和力学性能的配位聚合物。加热时，它们将转化为新的合金和固态相，它们可能是铁磁性的，导电的，或用作有机污染物的多相加氢和阳极氧化的催化剂。

This award to Andrew B. Bocarsly at Princeton University is jointly supported by the Advanced Materials Program in the Chemistry Division and the Office of Multidisciplinary Research in the Directorate of Mathematical and Physical Sciences. The proposal is concerned with the materials chemistry of cyanogels which are novel transition metal cyanometallate coordination polymers that undergo a sol-gel transition process when prepared in aqueous media. A typical cyanogel prepared from tetrachloropalladate and hexacyanocobaltate contains 95% water and is indefinitely stable. Other cyanogels based on platinum or tin and cobalticyanide or ferricyanide will be synthesized and characterized. The goals of the research are to characterize the cyanogel structure and stoichiometry, to explore their thermal chemistry to produce solid-state materials as a function of gel composition and to explore the application of derived solid-state materials in the areas of materials science, catalysis and electrocatalysis. Cyanogels are coordination polymers which will display novel solution and mechanical properties. On heating, they will be converted to new alloys and solid-state phases which may be ferromagnetic, conducting or serve as catalysts for heterogenous hydrogenation and anodic oxidation of organic pollutants.