The presence of an excessive concentration of CO2 in the atmosphere needs to be curbed with suitable measures including the reduction of CO2 emissions at stationary point sources such as power plants through carbon capture technologies and subsequent conversion of the captured CO2 into non-polluting clean fuels/chemicals using photo and/or electrocatalytic pathways. Porous materials have attracted much attention for carbon capture and in the recent past; they have witnessed significant advancements in their design and implementation for CO2 capture and conversion. In this context, the emerging trends in major porous adsorbents such as MOFs, zeolites, POPs, porous carbons, and mesoporous materials for CO2 capture and conversion are discussed. Their surface texture and chemistry, and the influence of various other features on their efficiency, selectivity, and recyclability for CO2 capture and conversion are explained and compared thoroughly. The scientific and technical advances on the material structure versus CO2 capture and conversion provide deep insights into designing effective porous materials. The review concludes with a summary, which compiles the key challenges in the field, current trends and critical challenges in the development of porous materials, and future research directions combined with possible solutions for realising the deployment of porous materials in CO2 capture and conversion.

Emerging trends in porous materials for CO2 capture and conversion

CeO2 is an excellent potential material for CO2 hydrogenation attributed to the highly tunable properties including metal–support interaction and abundant oxygen vacancy. In this work, four CeO2 su...

Insights into the Influence of CeO2 Crystal Facet on CO2 Hydrogenation to Methanol over Pd/CeO2 Catalysts

Utilization of CO2 as feedstock to produce fine chemicals and renewable fuels is a highly promising field, which presents unique challenges in its implementation at scale. Heterogeneous catalysis w...

Advances in the Design of Heterogeneous Catalysts and Thermocatalytic Processes for CO2 Utilization

C1 chemistry, which is the catalytic transformation of C1 molecules including CO, CO2 , CH4 , CH3 OH, and HCOOH, plays an important role in providing energy and chemical supplies while meeting environmental requirements. Zeolites are highly efficient solid catalysts used in the chemical industry. The design and development of zeolite-based mono-, bi-, and multifunctional catalysts has led to a booming application of zeolite-based catalysts to C1 chemistry. Combining the advantages of zeolites and metallic catalytic species has promoted the catalytic production of various hydrocarbons (e.g., methane, light olefins, aromatics, and liquid fuels) and oxygenates (e.g., methanol, dimethyl ether, formic acid, and higher alcohols) from C1 molecules. The key zeolite descriptors that influence catalytic performance, such as framework topologies, nanoconfinement effects, Bronsted acidities, secondary-pore systems, particle sizes, extraframework cations and atoms, hydrophobicity and hydrophilicity, and proximity between acid and metallic sites are discussed to provide a deep understanding of the significance of zeolites to C1 chemistry. An outlook regarding challenges and opportunities for the conversion of C1 resources using zeolite-based catalysts to meet emerging energy and environmental demands is also presented.

/pdf/applications-of-zeolites-to-c1-chemistry-recent-advances-1llq7ch3ru.pdf

Applications of Zeolites to C1 Chemistry: Recent Advances, Challenges, and Opportunities

Carbon dioxide (CO2) hydrogenation to liquid fuels including gasoline, jet fuel, diesel, methanol, ethanol, and other higher alcohols via heterogeneous catalysis, using renewable energy, not only effectively alleviates environmental problems caused by massive CO2 emissions, but also reduces our excessive dependence on fossil fuels. In this Outlook, we review the latest development in the design of novel and very promising heterogeneous catalysts for direct CO2 hydrogenation to methanol, liquid hydrocarbons, and higher alcohols. Compared with methanol production, the synthesis of products with two or more carbons (C2+) faces greater challenges. Highly efficient synthesis of C2+ products from CO2 hydrogenation can be achieved by a reaction coupling strategy that first converts CO2 to carbon monoxide or methanol and then conducts a C-C coupling reaction over a bifunctional/multifunctional catalyst. Apart from the catalytic performance, unique catalyst design ideas, and structure-performance relationship, we also discuss current challenges in catalyst development and perspectives for industrial applications.

Novel Heterogeneous Catalysts for CO2 Hydrogenation to Liquid Fuels.

Selective production of aromatics from CO2

Direct production of aromatics from syngas over a hybrid FeMn Fischer–Tropsch catalyst and HZSM-5 zeolite: local environment effect and mechanism-directed tuning of the aromatic selectivity

The invention belongs to the technical field of CO and CO2 catalytic conversion, and particularly relates to an olefin and arene co-production catalyst, a preparation method thereof and an applicationof the catalyst. The catalyst comprises a component with Fischer-Tropsch activity and a component with aromatization activity, wherein the component with Fischer-Tropsch activity comprises a Fischer-Tropsch activity component, an additive component and an inert material coating layer, and the component with aromatization activity comprises a zeolite molecular sieve and an inert material coating layer or a zeolite molecular sieve, an additive and an inert material coating layer. When CO2 or CO or CO2 and CO mixture on a catalyst system is under proper reaction conditions, the content of olefin(C2-C5) in a gas-phase hydrocarbon product can reach 70%, the total content of arene in liquid hydrocarbon reaches 95% or more, and p-xylene content reaches up to 50%. A new path capable of co-producing the olefin and the arene from CO2 and CO by hydrogenation is provided.

Olefin and arene co-production catalyst, preparation method thereof and application of catalyst

A negative side of HZSM-5 zeolite was observed for CO2 hydrogenation toward aromatics as combined with Fe-based FTS catalyst in an improper manner. The conversions of CO2 and CO were seriously hind...

Experimental Investigation on the Two-Sided Effect of Acidic HZSM-5 on the Catalytic Performance of Composite Fe-Based Fischer–Tropsch Catalysts and HZSM-5 Zeolite in the Production of Aromatics from CO2/H2

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Selective production of aromatics from CO2

Direct production of aromatics from syngas over a hybrid FeMn Fischer–Tropsch catalyst and HZSM-5 zeolite: local environment effect and mechanism-directed tuning of the aromatic selectivity

Olefin and arene co-production catalyst, preparation method thereof and application of catalyst

Experimental Investigation on the Two-Sided Effect of Acidic HZSM-5 on the Catalytic Performance of Composite Fe-Based Fischer–Tropsch Catalysts and HZSM-5 Zeolite in the Production of Aromatics from CO2/H2