Mohanty Bishnupad, Jena Bikash Kumar, Basu Suddhasatwa
Materials Chemistry Department, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India.
Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201002, India.
ACS Omega. 2020 Jan 10;5(3):1287-1295. doi: 10.1021/acsomega.9b03515. eCollection 2020 Jan 28.
The electrochemical energy conversions play an essential role in the production of sustainable and renewable energy. However, the performance is not up to the mark due to the absence of highly efficient and stable electrocatalysts. Recently, both 2D-matrix and single-atom catalysts (SACs) are two intense research topics in the field of electrocatalysis due to the high activity and stability and to maximize the utilization efficiency. Engineering the materials from 3D to 2D and modification from nanoparticles to single atoms have created a significant enhancement in the electrocatalytic activity. Hybridizing both the 2D matrix and SACs (2DM@SACs) creates a new electronic state in the materials, and that bequeaths with enhancing potentials toward the electrocatalytic activity. The strong covalent interaction between the 2D matrix and SACs tunes the intrinsic activity of the electrocatalysts. In this mini-review, we have discussed the different synthesis methods of 2DM@SACs with a focus on their electrochemical energy applications such as hydrogen evolution, oxygen evolution, oxygen reduction, and carbon dioxide reduction. This mini-review appraises the contribution to the rational proposal for the synthesis of perfect 2DM@SAC catalysts with their electrochemical properties toward energy conversion applications.
电化学能量转换在可持续和可再生能源生产中起着至关重要的作用。然而，由于缺乏高效稳定的电催化剂，其性能未达标准。近来，二维基体和单原子催化剂（SACs）因其高活性、稳定性以及能最大化利用效率，成为电催化领域的两个热门研究课题。将材料从三维工程化为二维以及从纳米颗粒改性为单原子，显著提高了电催化活性。二维基体和单原子催化剂的杂化（2DM@SACs）在材料中创造了一种新的电子态，并赋予其增强电催化活性的潜力。二维基体与单原子催化剂之间的强共价相互作用调节了电催化剂的本征活性。在这篇综述中，我们讨论了2DM@SACs的不同合成方法，重点关注其在析氢、析氧、氧还原和二氧化碳还原等电化学能量应用方面。这篇综述评估了对合理设计完美的2DM@SAC催化剂及其在能量转换应用中的电化学性质的贡献。
