Buckingham Mark A, Ward-O'Brien Brendan, Xiao Weichen, Li Yi, Qu Jie, Lewis David J
Department of Materials, The University of Manchester, Oxford Raod, M13 9PL, UK.
Chem Commun (Camb). 2022 Jul 19;58(58):8025-8037. doi: 10.1039/d2cc01796b.
Metal oxides, sulphides, selenides and tellurides have routinely been investigated and utilised for a wide range of applications, in particular in the areas of energy (photovoltaic, thermoelectric) and catalysis (thermocatalysis, electrocatalysis and photoelectrocatalysis). A recent development in this chemical space is high entropy and entropy-stabilised inorganic materials, which took inspiration from preceding work on high entropy metal alloys (multicomponent alloys). High entropy inorganic materials typically have many (often ≥6) different cations or anions to yield a high configurational entropy, which can give unexpected structures and properties that are conducive to a broad range of applications in energy and catalysis. More recently still, high entropy metal chalcogenides have been developed and have been investigated for thermoelectric energy generation, batteries for energy storage and electrocatalysis. This review sets out to define entropic stabilisation in high entropy materials, along with a discussion of synthetic techniques to produce these compounds, focusing on high entropy metal chalcogenides including extant routes to high entropy sulfides, selenides and tellurides. The resulting advantageous properties of these materials due to their multi-element nature and the currently proposed and investigated applications of these materials are reviewed. We end the perspective with an opinion on future directions.
金属氧化物、硫化物、硒化物和碲化物一直被常规研究并应用于广泛领域，特别是在能源（光伏、热电）和催化（热催化、电催化和光电催化）领域。在这个化学领域的一个最新进展是高熵和熵稳定的无机材料，其灵感来源于之前关于高熵金属合金（多组分合金）的工作。高熵无机材料通常具有许多（通常≥6）不同的阳离子或阴离子，以产生高构型熵，这可以赋予意想不到的结构和性能，有利于在能源和催化领域的广泛应用。最近，高熵金属硫族化物也得到了发展，并已被研究用于热电发电、储能电池和电催化。本综述旨在定义高熵材料中的熵稳定作用，并讨论制备这些化合物的合成技术，重点是高熵金属硫族化物，包括制备高熵硫化物、硒化物和碲化物的现有方法。综述了这些材料由于其多元素性质而产生的有利性能以及目前对这些材料提出的和研究的应用。我们以对未来方向的看法结束这一展望。
