Porous Polymer Materials for CO2 Capture and Electrocatalytic Reduction

Abstract

Efficient capture of CO2 and its conversion into other high value-added compounds by electrochemical methods is an effective way to reduce excess CO2 in the atmosphere. Porous polymeric materials hold great promise for selective adsorption and electrocatalytic reduction of CO2 due to their high specific surface area, tunable porosity, structural diversity, and chemical stability. Here, we review recent research advances in this field, including design of porous organic polymers (POPs), porous coordination polymers (PCPs), covalent organic frameworks (COFs), and functional nitrogen-containing polymers for capture and electrocatalytic reduction of CO2. In addition, key issues and prospects for the optimal design of porous polymers for future development are elucidated. This review is expected to shed new light on the development of advanced porous polymer electrocatalysts for efficient CO2 reduction.

CO2 Capture and Conversion into Carbon-Based Tribofilm by In Situ Tribochemical Reaction for Green Lubrication

“…However, the release of adsorbed CO 2 is endothermic and requires a significant amount of energy. Additionally, porous materials, including zeolites, − metal organic frameworks (MOFs), − and porous polymers, , are also used to capture CO 2 through physical adsorption. Although the weak physical adsorption of CO 2 by porous materials can improve the energy efficiency of the capture process, their adsorption capacity is limited compared with chemical adsorption.…”

“…Effective CO 2 capture is the primary key to achieving effective CO 2 utilization. At present, various adsorbents have been developed for capturing CO 2 , including hydroxides, − organic amines, − and porous materials. − Calcium hydroxide can react with CO 2 to form calcium carbonate, and calcium carbonate as precipitate can be separated from solution. Calcium carbonate is decomposed by calcination to form calcium oxide while releasing captured CO 2 .…”

Influence of the pore size on optical and mechanical properties of ecoflex sponges

“…Elastomers such as PDMS, polyurethane, Ecoflex and styrenebutadiene-styrene, known for their high flexibility, stretchability and resistance to significant deformation, are often chosen as a substrate or encapsulation material for wearable and flexible devices intended for use on the human body [2]. Porous polymer materials have also attracted attention due to their large surface area, high absorption capacity, low weight and high chemical interaction with active materials [3]. Direct templating technique (sugar templating etc), emulsion templating technique, gas forming technique, phase separation technique, and 3D printing can be used in the production of porous elastomers [4].…”

Pyrazine-Based Covalent Organic Frameworks for Effective Iodine and Carbon Dioxide Capture

“…Efficient CO 2 capture and conversion to high-value compounds are effective strategies for reducing atmospheric CO 2 levels . COFs can offer promising opportunities for CO 2 adsorption, separation, and catalytic conversion due to their above advantages .…”

“…16 Efficient CO 2 capture and conversion to high-value compounds are effective strategies for reducing atmospheric CO 2 levels. 17 COFs can offer promising opportunities for CO 2 adsorption, separation, and catalytic conversion due to their above advantages. 18 For example, Smet's group reported an amine-based COF, Me 3 TFB−(NH 2 ) 2 BD, resulting from the dynamic linker exchange with a remarkable CO 2 adsorption capacities of 1.12 ± 0.26 and 0.72 ± 0.07 mmol g −1 at 273 and 295 K, respectively.…”