Selective electroreduction of CO2 to value-added C1 and C2 products using MOF and COF-based catalysts

IF 23.2 2区 材料科学 Q1 MATERIALS SCIENCE, COMPOSITES Advanced Composites and Hybrid Materials Pub Date : 2024-10-28 DOI:10.1007/s42114-024-01016-z
Himan Dev Singh, Mayakannan G, Rajkumar Misra, Sujoy Sarkar, Debanjan Chakraborty, Shyamapada Nandi
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Abstract

Carbon dioxide (CO2) capture and conversion to value-added chemicals such as hydrocarbons or other energetic fuels is a potential alternate to carbon capture and sequestration in order to control the atmospheric CO2 concentration. In this regard, electrochemical CO2 reduction is one of the most important techniques to convert CO2 into valuable chemicals. For this process, abundant and cost-effective catalysts are required to ensure sustainable scale-up of the process. Metal Organic Frameworks (MOFs) and Covalent Organic Frameworks (COFs), two different classes of porous crystalline solids having a lot of similarities in terms of ordered porosity, tunable pore size, thermal & chemical stability and modular tailor-ability are currently being explored for developing potential electrocatalysts for CO2 reduction reaction. However, in most of the cases, the end product is CO, a potentially toxic gas molecule that has less energetic value compared to other hydrocarbons including methanol (CH3OH), methane (CH4), ethanol (C2H5OH), ethylene (C2H4), and formic acid (HCOOH) etc. Also, in most of the cases, the electrochemical CO2 reduction processes suffer from low current densities and low faradaic efficiency, limiting the scale-up of the technology. However, this has been overcome in some cases via composite formation with conducting materials including nanoparticle-based systems, conducting polymers etc. Herein we highlight the MOFs and COFs-based electrocatalysts capable of reducing CO2 to some value-added C1 and C2 products. It will also address the challenges in the field in terms of catalyst design and the future perspective of this field. Moreover, a structure–property relationship of MOFs and COFs-based electrocatalysts for CO2 reduction has been realized which is crucial to understanding their catalytic performances. It has been comprehended that catalysts’ efficiency is mainly dominated by three factors including high porosity/surface area, availability of active sites & nature of coordination environment and electronic structure and conductivity of the catalysts. However, the possibility of functionalization and structural stability under harsh electrochemical conditions also plays an important role in their catalytic efficiency.

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使用 MOF 和 COF 基催化剂选择性地将 CO2 电还原为高附加值的 C1 和 C2 产品
为了控制大气中二氧化碳的浓度,二氧化碳(CO2)捕集并转化为碳氢化合物或其他高能燃料等高附加值化学品是碳捕集与封存的一种潜在替代方法。在这方面,电化学二氧化碳还原是将二氧化碳转化为有价值化学品的最重要技术之一。在这一过程中,需要大量具有成本效益的催化剂,以确保可持续地扩大工艺规模。金属有机框架(MOFs)和共价有机框架(COFs)是两类不同的多孔结晶固体,在有序多孔性、可调孔径、热稳定性、化学稳定性和模块定制性等方面有很多相似之处,目前正被用于开发潜在的二氧化碳还原反应电催化剂。然而,在大多数情况下,最终产物是 CO,这是一种潜在的有毒气体分子,与其他碳氢化合物(包括甲醇(CH3OH)、甲烷(CH4)、乙醇(C2H5OH)、乙烯(C2H4)和甲酸(HCOOH)等)相比,能量价值较低。此外,在大多数情况下,电化学二氧化碳还原工艺存在电流密度低和远动效率低的问题,从而限制了该技术的推广。不过,在某些情况下,通过与导电材料(包括基于纳米颗粒的系统、导电聚合物等)形成复合材料,可以克服这一问题。在此,我们重点介绍基于 MOFs 和 COFs 的电催化剂,这些催化剂能够将二氧化碳还原成一些高附加值的 C1 和 C2 产品。报告还将探讨该领域在催化剂设计方面面临的挑战以及该领域的未来前景。此外,还了解了基于 MOFs 和 COFs 的二氧化碳还原电催化剂的结构-性质关系,这对理解它们的催化性能至关重要。人们已经认识到,催化剂的效率主要受三个因素的影响,包括高孔隙率/表面积、活性位点的可用性&;配位环境的性质以及催化剂的电子结构和导电性。不过,在苛刻的电化学条件下,功能化的可能性和结构的稳定性也对催化剂的催化效率起着重要作用。
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来源期刊
CiteScore
26.00
自引率
21.40%
发文量
185
期刊介绍: Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field. The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest. Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials. Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.
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