react to中文翻译cu基催化剂的不饱和配位原子的设计
英文版:
Design of Unsaturated Coordinating Atoms of Cu-Based Catalysts
Copper-based catalysts have been widely used in chemical reactions due to their high activity and selectivity. However, optimizing their properties is still a hot research topic. In recent years, considerable attention has been paid to the design of unsaturated coordinating atoms (UCAs) in Cu-based catalysts.
UCAs refer to the atoms that are less bonded with the surrounding atoms in a complex, and they play a critical role in the reactivity of the catalysts. By modifying the electronic structure, the UCAs can enhance the adsorption and activation of reactant molecules, leading to improved catalytic performance.
One of the commonly used approaches to introduce UCAs into Cu-based catalysts is to incorporate heteroatoms, such as nitrogen, oxygen, and sulfur, into the ligands or support ma
terials. For example, a Cu-based catalyst supported on N-doped graphene showed an excellent catalytic activity for the electrochemical reduction of CO2. Another method is to introduce defective sites, such as vacancies or dislocations, into the catalysts. The UCAs can be formed on these sites, which can facilitate the activation of reactant molecules.
In addition, the coordination environment around the UCAs also plays a crucial role in determining the catalytic performance. By adjusting the steric and electronic properties of the ligands, the accessibility and reactivity of the UCAs can be modulated. For example, a Cu-based catalyst with a bipyridine ligand showed a high activity and selectivity for the oxygen reduction reaction.
In summary, the design of UCAs in Cu-based catalysts is a promising approach to enhance their catalytic performance. Further studies are needed to explore the relationship between the UCA properties and the catalytic behavior, which can provide guidance for the rational design of Cu-based catalysts.
中文翻译:
cu基催化剂的不饱和配位原子的设计
由于其高活性和选择性,铜基催化剂已被广泛应用于化学反应中。然而,优化其性能仍然是一个热门的研究课题。近年来,人们对铜基催化剂中不饱和配位原子(UCA)的设计引起了相当大的关注。
UCA是指在配合物中与周围原子结合较少的原子,并在催化剂的反应性能中发挥关键作用。通过改变其电子结构,UCA可以增强反应物分子的吸附和活化,从而提高催化性能。
将杂原子(如氮、氧、硫等)引入配体或载体中是向铜基催化剂中引入UCA的常用方法之一。例如,载体为N掺杂石墨烯的Cu基催化剂在电化学还原CO2反应中表现出优良的催化活性。另一种方法是在催化剂中引入缺陷位点,如空位或位错。在这些位点上,UCA可以形成,从而有利于反应物分子的活化。
此外,UCA周围的配位环境也对催化性能有着至关重要的影响。通过调节配体的空间位阻和电子性质,可以调节UCA的可达性和反应性。例如,一种以联吡啶配体为基础的Cu基催化剂在氧还原反应中表现出高活性和选择性。
总之,将UCA设计到铜基催化剂中是一种增强其催化性能的有前景的方法。还需要进一步研究UCA性质与催化行为之间的关系,为铜基催化剂的合理设计提供指导。
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