Combustion, Chemistry, and Carbon Neutrality

Chemical Reviews, Год журнала: 2023, Номер 123(8), С. 5139 - 5219

Опубликована: Апрель 9, 2023

Combustion is a reactive oxidation process that releases energy bound in chemical compounds used as fuels─energy needed for power generation, transportation, heating, and industrial purposes. Because of greenhouse gas local pollutant emissions associated with fossil fuels, combustion science applications are challenged to abandon conventional pathways adapt toward the demand future carbon neutrality. For design efficient, low-emission processes, understanding details relevant transformations essential. Comprehensive knowledge gained from decades fossil-fuel research includes general principles establishing validating reaction mechanisms models, relying on both theory experiments suite analytic monitoring sensing techniques. Such can be advantageously applied extended configure, analyze, control new systems using different, nonfossil, potentially zero-carbon fuels. Understanding impact its links chemistry needs some background. The introduction therefore combines information exemplary cultural technological achievements nature effects emissions. Subsequently, methodology described. A major part devoted followed by discussion selected applications, illustrating future.

Язык: Английский

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Understanding MOF Flexibility: An Analysis Focused on Pillared Layer MOFs as a Model System

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(33)

Опубликована: Апрель 13, 2023

Abstract Flexible porous frameworks are at the forefront of materials research. A unique feature is their ability to open and close pores in an adaptive manner induced by chemical physical stimuli. Such enzyme‐like selective recognition offers a wide range functions ranging from gas storage separation sensing, actuation, mechanical energy catalysis. However, factors affecting switchability poorly understood. In particular, role building blocks, as well secondary (crystal size, defects, cooperativity) host–guest interactions, profit systematic investigations idealized model advanced analytical techniques simulations. The review describes integrated approach targeting deliberate design pillared layer metal–organic for analysis critical framework dynamics summarizes resulting progress understanding application.

Язык: Английский

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Design and Advanced Manufacturing of NU‐1000 Metal–Organic Frameworks with Future Perspectives for Environmental and Renewable Energy Applications

Small, Год журнала: 2023, Номер 20(15)

Опубликована: Ноя. 23, 2023

Abstract Metal–organic frameworks (MOFs) represent a relatively new family of materials that attract lots attention thanks to their unique features such as hierarchical porosity, active metal centers, versatility linkers/metal nodes, and large surface area. Among the extended list MOFs, Zr‐based‐MOFs demonstrate comparably superior chemical thermal stabilities, making them ideal candidates for energy environmental applications. As Zr‐MOF, NU‐1000 is first synthesized at Northwestern University. A comprehensive review various approaches synthesis MOFs obtaining properties (e.g., diverse morphologies, area, particular pore size distribution) applications in catalysis (electro‐, photo‐catalysis), CO 2 reduction, batteries, hydrogen storage, gas storage/separation, other fields are presented. The further outlines current challenges development derivatives practical applications, revealing areas future investigation.

Язык: Английский

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Synthesis strategies of covalent organic frameworks: An overview from nonconventional heating methods and reaction media

Green Energy & Environment, Год журнала: 2022, Номер 8(6), С. 1596 - 1618

Опубликована: Май 14, 2022

Covalent organic frameworks (COFs), as an emerging class of porous crystalline materials constructed by covalent links between the building monomers, have gained tremendous attention. Over past 15 years, COFs made rapid progress and substantial development in chemistry fields. However, synthesis has been dominated solvothermal methods for a long time it usually involves high temperature, pressure toxic solvents, which created many challenges environmental considerations. Recently, exploration new approaches facile fabrication aroused extensive interest. Hence, this review, we comprehensively describe synthetic strategies from aspects nonconventional heating reaction media. In addition, advantages, limitations properties preparation are compared. Finally, outline main prospects future propose some possible solutions.

Язык: Английский

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Metalation of metal–organic frameworks: fundamentals and applications

Chemical Society Reviews, Год журнала: 2024, Номер 53(11), С. 5626 - 5676

Опубликована: Янв. 1, 2024

Metalation of metal-organic frameworks (MOFs) has been developed as a prominent strategy for materials functionalization pore chemistry modulation and property optimization. By introducing exotic metal ions/complexes/nanoparticles onto/into the parent framework, many metallized MOFs have exhibited significantly improved performance in wide range applications. In this review, we focus on research progress metalation during last five years, spanning design principles, synthetic strategies, potential Based crystal engineering minor change MOF composition through would lead to leveraged variation properties. This review starts from general strategies established incorporation species within MOFs, followed by principles graft desired functionality while maintaining porosity frameworks. Facile contributed great number bespoke with excellent performance, summarize their applications gas adsorption separation, heterogeneous catalysis, detection sensing, energy storage conversion. The underlying mechanisms are also investigated state-of-the-art techniques analyzed gaining insight into structure-property relationships, which turn facilitate further development principles. Finally, current challenges opportunities discussed, promising future directions customizing next-generation advanced outlined well.

Язык: Английский

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Metal–Organic Framework Materials for Production and Distribution of Ammonia

Journal of the American Chemical Society, Год журнала: 2023, Номер 145(4), С. 1998 - 2012

Опубликована: Янв. 23, 2023

The efficient production of ammonia (NH3) from dinitrogen (N2) and water (H2O) using renewable energy is an important step on the roadmap to economy. productivity this conversion hinges design development new active catalysts. In wide scope materials that have been examined as catalysts for photo- electro-driven reduction N2 NH3, functional metal–organic framework (MOF) exhibit unique properties appealing features. By elucidating their structural spectroscopic linking observed activity MOF-based catalysts, valuable information can be gathered inspire generations advanced produce green NH3. NH3 also a surrogate hydrogen (H2) economy, potential application MOFs practical effective capture, safe storage, transport discussed. This Perspective analyzes contribution make toward

Язык: Английский

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3D printing synthesis of catalysts

Materials Today Sustainability, Год журнала: 2024, Номер 26, С. 100746 - 100746

Опубликована: Март 15, 2024

Язык: Английский

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High Water Adsorption MOFs with Optimized Pore‐Nanospaces for Autonomous Indoor Humidity Control and Pollutants Removal

Angewandte Chemie International Edition, Год журнала: 2021, Номер 61(4)

Опубликована: Ноя. 15, 2021

The indoor air quality is of prime importance for human daily life and health, which the adsorbents like zeolites silica-gels are widely used dehumidification harmful gases capture. Herein, we develop a pore-nanospace post-engineering strategy to optimize hydrophilicity, water-uptake capacity air-purifying ability metal-organic frameworks (MOFs) with long-term stability, offering an ideal candidate autonomous multi-functionality moisture control pollutants sequestration. Through variant tuning organic-linkers carrying hydrophobic hydrophilic groups in pore-nanospaces prototypical UiO-67, moderately MOF (UiO-67-4Me-NH2 -38 %) high thermal, hydrolytic acid-base stability screened out, featuring S-shaped water sorption isotherms exactly located recommended comfortable healthy ranges relative humidity ventilation (45 %-65 % RH) adverse health effects minimization (40-60 RH). Its exceptional attributes working capacity/efficiency, contaminants removal, recyclability regeneration promise great potential confined environment application.

Язык: Английский

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Metal–Organic Frameworks and Their Composites for Environmental Applications

Advanced Science, Год журнала: 2022, Номер 9(32)

Опубликована: Сен. 14, 2022

Abstract From the point of view ecological environment, contaminants such as heavy metal ions or toxic gases have caused harmful impacts on environment and human health, overcoming these adverse effects remains a serious important task. Very recent, highly crystalline porous metal–organic frameworks (MOFs), with tailorable chemistry excellent chemical stability, shown promising properties in field removing various hazardous pollutants. This review concentrates recent progress MOFs MOF‐based materials their exploit environmental applications, mainly including water treatment gas storage separation. Finally, challenges trends for future developments are discussed explored.

Язык: Английский

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H2S and SO2 adsorption on Cu doped MoSe2: DFT investigation

Physics Letters A, Год журнала: 2021, Номер 422, С. 127798 - 127798

Опубликована: Окт. 30, 2021

Hydrogen sulfide and sulfur dioxide are highly hazardous gases, thus, the development of sensitive selective materials for their adsorption is desirable. The effect Cu doping MoSe2 on its both H2S SO2 gases investigated in this work using first principles density functional theory (DFT) computations. band gap, distance, energy, states, charge transfer examined details. results illustrate significant changes electronic properties as well due to with Cu. reveal states gap upon that enhance system. Nevertheless, Cu-modified system exhibits higher energy towards thus sensitivity compared SO2. demonstrate can be applied successfully gas sensor applications.

Язык: Английский

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