Journal ArticleDOI
Multishelled CaO Microspheres Stabilized by Atomic Layer Deposition of Al2O3 for Enhanced CO2 Capture Performance
Andac Armutlulu,Muhammad Awais Naeem,Hsueh-Ju Liu,Sung Min Kim,Agnieszka M. Kierzkowska,Alexey Fedorov,Christoph R. Müller +6 more
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TLDR
A template-assisted hydrothermal approach to develop CaO-based sorbents exhibiting a very high and cyclically stable CO2 uptake is exploited, thus maximizing the fraction of CO2 -capture-active CaO.Abstract:
CO2 capture and storage is a promising concept to reduce anthropogenic CO2 emissions. The most established technology for capturing CO2 relies on amine scrubbing that is, however, associated with high costs. Technoeconomic studies show that using CaO as a high-temperature CO2 sorbent can significantly reduce the costs of CO2 capture. A serious disadvantage of CaO derived from earth-abundant precursors, e.g., limestone, is the rapid, sintering-induced decay of its cyclic CO2 uptake. Here, a template-assisted hydrothermal approach to develop CaO-based sorbents exhibiting a very high and cyclically stable CO2 uptake is exploited. The morphological characteristics of these sorbents, i.e., a porous shell comprised of CaO nanoparticles coated by a thin layer of Al2O3 (<3 nm) containing a central void, ensure (i) minimal diffusion limitations, (ii) space to accompany the substantial volumetric changes during CO2 capture and release, and (iii) a minimal quantity of Al2O3 for structural stabilization, thus maximizing the fraction of CO2-capture-active CaO.read more
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Journal ArticleDOI
Industrial carbon dioxide capture and utilization: state of the art and future challenges
Wanlin Gao,Shuyu Liang,Rujie Wang,Qian Jiang,Yu Zhang,Qianwen Zheng,Bingqiao Xie,Cui Ying Toe,Xuancan Zhu,Junya Wang,Liang Huang,Yanshan Gao,Zheng Wang,Changbum Jo,Qiang Wang,Lidong Wang,Yuefeng Liu,Benoit Louis,Jason Scott,Anne-Cécile Roger,Rose Amal,Hong He,Sang-Eon Park +22 more
TL;DR: This work critically summarized and comprehensively reviewed the characteristics and performance of both liquid and solid CO2 adsorbents with possible schemes for the improvement of their CO2 capture ability and advances in CO2 utilization.
Journal ArticleDOI
Optimization of the structural characteristics of CaO and its effective stabilization yield high-capacity CO 2 sorbents
Muhammad Awais Naeem,Andac Armutlulu,Qasim Imtiaz,Felix Donat,Robin Schäublin,Agnieszka M. Kierzkowska,Christoph R. Müller +6 more
TL;DR: A facile one-pot synthesis approach to yield highly effective, MgO-stabilized, CaO-based CO2 sorbents featuring highly porous multishelled morphologies, identified as an essential feature to yield a high-performance sorbent.
Journal ArticleDOI
Integrated CO2 Capture and Conversion as an Efficient Process for Fuels from Greenhouse Gases
Sung Min Kim,Paula M. Abdala,Marcin Broda,Davood Hosseini,Christophe Copéret,Christoph R. Müller +5 more
TL;DR: In this article, a process that directly integrates CO2 utilization into CO2 capture allowing for the full conversion of the CO2 captured and the selective production of a synthesis gas is proposed.
Journal ArticleDOI
CO2 Capture at Medium to High Temperature Using Solid Oxide-Based Sorbents: Fundamental Aspects, Mechanistic Insights, and Recent Advances.
TL;DR: In this paper, the authors explore the fundamental aspects underpinning solid CO2 sorbents based on alkali and alkaline earth metal oxides operating at medium to high temperature: how their structure, chemical composition, and morphology impact their performance and long-term use.
Journal ArticleDOI
High-performance and low-cost macroporous calcium oxide based materials for thermochemical energy storage in concentrated solar power plants
Pedro Jiménez,Antonio Perejón,Mónica Benítez Guerrero,Jose Manuel Valverde,C. Ortiz,Luis Allan Pérez Maqueda +5 more
TL;DR: In this paper, the authors have prepared acicular calcium and magnesium acetate precursors using a simple, cost-effective and easily scalable technique that requires just the natural minerals and acetic acid, thereby avoiding expensive reactants and environmentally unfriendly solvents.
References
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Book
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Journal ArticleDOI
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Journal ArticleDOI
Adsorbent Materials for Carbon Dioxide Capture from Large Anthropogenic Point Sources
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Journal ArticleDOI
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