{"title":"Metal on metal oxide platforms for syngas production by chemical looping of methane: status and perspectives","authors":"Zoe Benedict , Debtanu Maiti , Yingchao Yang , Rebecca Fushimi","doi":"10.1016/j.mtsust.2025.101128","DOIUrl":"10.1016/j.mtsust.2025.101128","url":null,"abstract":"<div><div>The energy-efficient conversion of methane (CH<sub>4</sub>) to syngas represents a transformative pathway for advancing the global hydrocarbon economy. While conventional reforming processes are well established for producing syngas, a key intermediate for high-value fuels and chemicals, chemical looping reforming of methane offers a compelling alternative. By decoupling the reduction and oxidation steps, chemical looping approaches inherently minimize side reactions and enhance product selectivity. This review explores the critical material and economic considerations necessary for the development of robust, energy-efficient chemical looping technologies for dry reforming of methane. Metal oxide-supported catalysts, incorporating noble or transition metals, are the primary catalysts for chemical looping applications. Catalyst performance is governed not only by the intrinsic reactivity of active metals toward CH<sub>4</sub> and CO<sub>2</sub> activation but also by the redox behavior of oxide supports and the interfacial dynamics at the metal–support boundary. Key strategies for improving methane conversion efficiency and ensuring long-term catalyst durability include lowering C–H bond activation barriers, enhancing the oxygen storage capacity of supports, and engineering metal–support interactions to suppress coking and sintering. This article reviews the current challenges and opportunities in methane conversion technology and presents a comprehensive evaluation of catalysts comprising Ni, Fe, Co, and Pt dispersed on CeO<sub>2</sub>, ZrO<sub>2</sub>, Ce<sub>1-x</sub>Zr<sub>x</sub>O<sub>2</sub>, Al<sub>2</sub>O<sub>3</sub>, SiO<sub>2</sub>, and TiO<sub>2</sub> supports, with a parallel focus on economic feasibility and industrial scalability.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101128"},"PeriodicalIF":7.1,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143924255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Co-pyrolysis of leather shaving waste and rice husk for hybrid palladium-supported biochar catalysts in hydrogenation reactions","authors":"Davide Baldassin , Lilia Longo , Federica Menegazzo , Carla Bittencourt , Mohsen Padervand , Michela Signoretto","doi":"10.1016/j.mtsust.2025.101127","DOIUrl":"10.1016/j.mtsust.2025.101127","url":null,"abstract":"<div><div>The co-pyrolysis of tanned leather shaving waste (LS), a byproduct of the tanning industry, and rice husk (RH), an abundant agrifood residue, was performed to produce a hybrid activated biochar (ARL) to be used as support in the preparation of a Pd-based catalyst (Pd/ARL). The catalytic performance of Pd/ARL was compared with Pd/biochar catalysts derived from the pyrolysis of the individual feedstocks (Pd/ARH from rice husk and Pd/ALS from leather shaving) in the hydrogenation of benzaldehyde. Pd/ARH and Pd/ARL exhibited significantly higher initial activity, with turnover frequencies greater than Pd/ALS (1.41 s<sup>−1</sup> and 0.58 s<sup>−1</sup> vs. 0.09 s<sup>−1</sup>, respectively). However, Pd/ALS and Pd/ARL demonstrated superior selectivity toward the desired product, benzyl alcohol (92 and 94 % for the former and later cases, respectively, vs. 78 % for Pd/ARH), effectively suppressing side reactions such as benzaldehyde acetalization with ethanol. Chemical and physical characterization of the biochars and catalysts revealed that Pd/ARL benefits from the synergistic properties of both feedstocks, including enhanced metal anchoring, high dispersion, and unique oxidation states. These factors contributed to the best overall catalytic performance, increasing the yield of desired products by up to 96 %. This research disclosed a novel strategy for the fabrication of cost-effective catalytic supports from waste materials aimed at modulating the hydrogenation reactions selectivity.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101127"},"PeriodicalIF":7.1,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143895114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gábor Kónya , László Tóth , Péter Gerse , Ferenc Palásti , Pál Hansághy , Ferenc Ronkay
{"title":"Cutting tests and performance evaluation of recycled PET in fused filament fabrication","authors":"Gábor Kónya , László Tóth , Péter Gerse , Ferenc Palásti , Pál Hansághy , Ferenc Ronkay","doi":"10.1016/j.mtsust.2025.101126","DOIUrl":"10.1016/j.mtsust.2025.101126","url":null,"abstract":"<div><div>Fused Deposition Modelling (FDM) technology in 3D printing offers numerous advantages, such as cost-effectiveness, ease of use, and the ability to produce complex geometries with minimal material waste; however, surface quality remains a significant challenge. This study investigates how the hardness and melt flow properties of the raw material affect surface roughness and how this can be improved by post-machining. Modified recycled poly(ethylene terephthalate) (RPET) was used as the raw material in the experiments, considering aspects of the circular economy. The material properties were adjusted by varying the ratio of ethylene-butyl-acrylate-glycidyl-methacrylate (EBA-GMA) additive. It was demonstrated that a decrease in the melt flow rate (MFR) results in more uniform deposited layers, leading to smoother surfaces. By systematically varying turning parameters and applying statistical analysis, it was shown that feed rate has the most significant impact on surface roughness. Using a feed rate of 0.1 mm/rev reduced the average surface roughness from 13–25 μm to 2–4 μm. Scanning electron microscopy (SEM) revealed that the surface characteristics after post-processing were minimally influenced by material hardness. This suggests that the findings are likely applicable to 3D printing with other plastics as well.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101126"},"PeriodicalIF":7.1,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Opportunities and challenges in utilizing of 3D printing technology review; Case study in the state of Qatar industry","authors":"Sardar Ali, Awni Al-Otoom, Mohannad T. Aljarrah, Hassan Mahasneh, Ehab Saleh","doi":"10.1016/j.mtsust.2025.101129","DOIUrl":"10.1016/j.mtsust.2025.101129","url":null,"abstract":"<div><div>The strategic blueprint outlined by Qatar National Vision 2030 (QNV 2030) underscores the pivotal role of the manufacturing and energy sectors in the nation's economic expansion and diversification efforts. Central to this vision is Qatar's ambition to ascend as a global leader in natural gas, leveraging its abundant reserves for monetization and expansion. Concurrently, a concerted effort is underway to augment the manufacturing industry, presently valued at approximately $21 billion USD. Recent data from the Ministry of Commerce underscores the sector's robust growth, marked by the inauguration of numerous factories and the introduction of a plethora of new products during Q4 of 2022. The integration of additive manufacturing technology, colloquially known as 3D printing, has emerged as a strategic imperative within Qatar's manufacturing strategy. This initiative seeks to elevate existing export platforms across various materials, including plastics, polymers, and aluminum, thereby unlocking novel avenues for additive manufacturing. This paper delves into the contemporary advancements in additive manufacturing, examining market dynamics across international, regional, and local landscapes. Furthermore, it elucidates the inherent advantages, challenges, and prerequisites for integrating 3D printing technology into Qatar's energy sector. Drawing from empirical evidence and scholarly discourse, the study underscores the transformative potential of additive manufacturing across diverse applications within the energy domain, ranging from process intensification to the production of non-critical spare parts. Despite burgeoning interest, Qatar's current ecosystem lacks a cohesive strategy for the widespread adoption of 3D printing technology within the energy-intensive manufacturing sector. This deficiency is primarily attributed to a dearth of scientific acumen and skilled human capital. Moreover, logistical constraints pertaining to the procurement of printing supplies pose additional hurdles to the technology's mainstream integration.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101129"},"PeriodicalIF":7.1,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Qasim Shoaib , Vaidurya Mukherjee , Vasiliki Marmaridou , Aleksei Sereda , Peterasp Nawzar Satarawala , Jose G. Carrillo , Eral Bele
{"title":"Development and evaluation of sustainable henequen fibre foams for thermal insulation","authors":"Qasim Shoaib , Vaidurya Mukherjee , Vasiliki Marmaridou , Aleksei Sereda , Peterasp Nawzar Satarawala , Jose G. Carrillo , Eral Bele","doi":"10.1016/j.mtsust.2025.101111","DOIUrl":"10.1016/j.mtsust.2025.101111","url":null,"abstract":"<div><div>The increasing demand for sustainable thermal insulation materials stems from environmental concerns associated with conventional petroleum and mineral-based options, which exhibit high toxicity and global warming potential. While bio-based alternatives exist, they often present challenges related to chemically intensive processing, scalability, and cost-effectiveness. This study investigates the production of porous foams from lignocellulosic henequen fibres utilising a simple and scalable mechanical fibrillation process. Two distinct foam formulations were developed: one employing xanthan gum, a natural polysaccharide, as a binder to enhance structural integrity, and the other utilising borax, a natural mineral salt, to cross-link exposed cellulose in the fibrillated fibres. The resulting foams exhibited a highly porous structure with enhanced chemical and mechanical fibre interconnections. The xanthan gum-bound foam exhibited a thermal conductivity of 42 mW/m*K, an apparent density of 21 <span><math><msup><mrow><mi>kg/m</mi></mrow><mrow><mn>3</mn></mrow></msup></math></span>, and a compressive stiffness of 56 kPa. The borax-crosslinked foam achieved a thermal conductivity of 43 mW/m*K, an apparent density of 11.5 <span><math><msup><mrow><mi>kg/m</mi></mrow><mrow><mn>3</mn></mrow></msup></math></span>, and a compressive stiffness of 19 kPa. Notably, both foams demonstrated a limiting oxygen index of 29.5<span><math><mtext>%</mtext></math></span>, classifying them as self-extinguishing, despite the inherent flammability of the natural fibres. The xanthan gum-bound foam also maintained comparable physical and thermal properties after three recycling cycles. A cradle-to-gate life cycle assessment revealed significant reductions in toxicity and global warming potential compared to conventional insulation materials, specifically rigid polyurethane and glass wool. This research demonstrates the feasibility of utilising a straightforward fibrillation and template-forming process with abundant henequen fibres to produce sustainable insulation foams with good thermo-mechanical performance, improved fire safety, and a diminished environmental footprint.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101111"},"PeriodicalIF":7.1,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143924254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Muhammad Asim Iqbal , Sabeen Gohar , Md Sumon Miah, Ryotaro Minami, Junpeng Xiong, Muhammad Nauman Sarwar, Mayakrishnan Gopiraman, Ick Soo Kim
{"title":"Green, sustainable, and eco-friendly smart halochromic sensor derived from eggshell membrane-based PVA/curcumin nanofibers for real-time monitoring of chicken freshness","authors":"Muhammad Asim Iqbal , Sabeen Gohar , Md Sumon Miah, Ryotaro Minami, Junpeng Xiong, Muhammad Nauman Sarwar, Mayakrishnan Gopiraman, Ick Soo Kim","doi":"10.1016/j.mtsust.2025.101125","DOIUrl":"10.1016/j.mtsust.2025.101125","url":null,"abstract":"<div><div>This study presents the development of a sustainable halochromic sensor (PE-L-C-Cur) for real-time monitoring of chicken spoilage. The sensor detects spoilage through a visible color shift of curcumin in response to pH variations induced by volatile compounds such as biogenic ammonia and amines. A crosslinked electrospun nanocomposite (PE-L-C) was fabricated using polyvinyl alcohol (PVA) and eggshell membrane (E), with lemon extract serving as both a solvent and crosslinking agent, followed by coating with a green ethanolic extract of curcumin (Cur) to form the halochromic sensor. Comprehensive spectroscopic, microscopic, and analytical characterization confirmed the structural, morphological, thermal, and functional properties of PE-L-C-Cur, along with its excellent water resistance, optical properties, and moisture barrier characteristics. The sensor exhibited a significant total color difference (ΔE) of 51.85 over four days (0 days: 0.0 to 27.52; 1 day: 27.52 to 32.64; 2 days: 32.64 to 33.58; 3 days: 33.58 to 42.23; 4 days: 42.23 to 51.85), enabling visual detection of spoilage. Additionally, PE-L-C-Cur demonstrated strong antibacterial activity against <em>E. coli</em> and <em>S. aureus</em>, enhanced thermal stability, and biodegradability. Its green, cost-effective, and reusable nature makes it a promising candidate for smart food packaging applications, reducing waste and preventing foodborne illnesses. This study successfully develops a sustainable curcumin-coated halochromic sensor, highlighting its potential for real-time chicken freshness monitoring and smart packaging applications.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101125"},"PeriodicalIF":7.1,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143924256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mayra S. Tovar-Oliva , Venkata S.R.K. Tandava , Franziska Bößl , Valentin C. Menzel , Josaine A. Zarco-Roldán , Rebecca Rae , Caroline Kirk , Sebastián Murcia-López , Ignacio Tudela
{"title":"Importance of optimising electrodeposition parameters for scalable and cost-effective manufacturing of Cu catalysts for efficient electrochemical CO2 reduction to renewable fuels and chemical feedstocks","authors":"Mayra S. Tovar-Oliva , Venkata S.R.K. Tandava , Franziska Bößl , Valentin C. Menzel , Josaine A. Zarco-Roldán , Rebecca Rae , Caroline Kirk , Sebastián Murcia-López , Ignacio Tudela","doi":"10.1016/j.mtsust.2025.101116","DOIUrl":"10.1016/j.mtsust.2025.101116","url":null,"abstract":"<div><div>The electrodeposition of Cu-based catalysts onto commercial gas diffusion layers (GDLs) provides a scalable approach to the manufacturing of gas diffusion electrodes (GDEs) for efficient electrochemical CO<sub>2</sub> reduction into renewable fuels and chemicals. This study investigates the influence of electrodeposition parameters on the characteristics and performance of GDEs. The effect of different process parameters on the reproducibility of the GDEs was analysed, highlighting the importance of current density in overcoming nucleation issues that could cause uneven catalyst distribution. The relationship between current density, catalyst loading and GDE performance was then evaluated, revealing the necessity of balancing these parameters to achieve uniform catalyst distribution and prevent the formation of semi-continuous films that may block the surface of the GDL, negatively affecting the performance of the GDEs. By optimising both current density (30 mA cm<sup>−2</sup>) and catalyst loading (1 C cm<sup>−2</sup> or <span><math><mo>≈</mo></math></span> 0.33 mg cm<sup>−2</sup>), we prepared large GDEs (geometrical electrode active area of 5 cm<span><math><msup><mrow></mrow><mrow><mn>2</mn></mrow></msup></math></span>) that achieved up to 70% Faradaic efficiency for the conversion of CO<sub>2</sub> into useful products such as C<sub>2</sub>H<sub>4</sub>, <figure><img></figure> or <figure><img></figure> under industrially relevant conditions (applied current density of 200 mA cm<sup>−2</sup> during CO<sub>2</sub> electrolysis) while saving 50% of catalyst material and 75% of electrodeposition time when compared to other GDEs prepared under different process parameters (e.g. 15 mA cm<sup>−2</sup> and 2 C cm<sup>−2</sup> or <span><math><mo>≈</mo></math></span> 0.66 mg cm<sup>−2</sup>). These results illustrate how important it is to adopt a strategic approach towards developing catalysts fabricated by electrodeposition, demonstrating how it is possible to significantly reduce their material and processing costs without compromising their performance.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101116"},"PeriodicalIF":7.1,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143903799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nicolò B.D. Monti , Gumaa A. El-Nagar , Marco Fontana , Felicia Di Costola , Siddharth Gupta , Matthew T. Mayer , Candido F. Pirri , Juqin Zeng
{"title":"Insights into the stability of copper gas diffusion electrodes for carbon dioxide reduction at high reaction rates","authors":"Nicolò B.D. Monti , Gumaa A. El-Nagar , Marco Fontana , Felicia Di Costola , Siddharth Gupta , Matthew T. Mayer , Candido F. Pirri , Juqin Zeng","doi":"10.1016/j.mtsust.2025.101124","DOIUrl":"10.1016/j.mtsust.2025.101124","url":null,"abstract":"<div><div>Electrosynthesis of value-added chemicals from CO<sub>2</sub> offers a sustainable solution to climate change, renewable energy use, and raw material shortages. This study examines the high-rate production of ethylene (C<sub>2</sub>H<sub>4</sub>) and ethanol (CH<sub>3</sub>CH<sub>2</sub>OH) through CO<sub>2</sub> reduction reaction on copper (Cu) gas diffusion electrodes (GDEs) made by sputtering deposition. The catalyst layer thickness of the GDEs, adjusted by deposition time, significantly affects the electrode stability. During testing, a selectivity shift is observed, where C<sub>2</sub>H<sub>4</sub> and CH<sub>3</sub>CH<sub>2</sub>OH selectivity decreases, while CH<sub>4</sub> and H<sub>2</sub> selectivity increases. However, an alternating operation by interrupting and restarting the polarization fully restores the C<sub>2</sub>H<sub>4</sub> and CH<sub>3</sub>CH<sub>2</sub>OH selectivity. <em>Operando</em> X-ray absorption spectroscopy with online product analysis reveals that at constant potentials, the dominant oxidized Cu species gradually reduces to metallic Cu, along with a decline in C<sub>2</sub>H<sub>4</sub> selectivity. Under alternating operation, some oxidized Cu species remains, and the C<sub>2</sub>H<sub>4</sub> selectivity is also preserved. This outcome suggests a close link between cationic Cu species and C<sub>2</sub>H<sub>4</sub> production, offering insights into stabilizing these species for prolonged C<sub>2</sub>H<sub>4</sub> production.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"30 ","pages":"Article 101124"},"PeriodicalIF":7.1,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Coarse-grained molecular studies reveal potential for increased CO2 storage in hydrates","authors":"Meisam Adibifard, Olufemi Olorode","doi":"10.1016/j.mtsust.2025.101106","DOIUrl":"10.1016/j.mtsust.2025.101106","url":null,"abstract":"<div><div>The interest in curtailing global warming has accelerated research in capturing and storing carbon dioxide (CO<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>), which accounts for 76% of all greenhouse gases. Considering the potential of capturing, storing, and transporting CO<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> as hydrates, several researchers have performed molecular dynamics (MD) and experimental studies of the formation and dissociation of gas hydrates. Although these studies have illustrated essential mechanisms, such as the nucleation and growth of gas hydrates, we show that the small length scales of these studies limit them to processes smaller than the sizes of the domain simulated. To address this limitation, we performed MD studies of CO<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> hydrate growth in systems that are two orders of magnitude larger than in previous studies. This allowed us to observe the trapping of CO<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> nanobubbles within a growing solid hydrate for the first time. We computed the CO<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> density in the trapped nanobubble and observed that it was 2.5 times its corresponding density in the solid hydrate, which indicates the potential to significantly increase the storage of CO<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> (and other gases) in gas hydrates. The CO<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> nanobubbles were bigger than the simulation domains used in most previous MD simulations of CO<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> hydrates, indicating the importance of these large-scale studies.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"30 ","pages":"Article 101106"},"PeriodicalIF":7.1,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Unveiling host-guest interactions and stability of amine-functionalized silica sorbents for carbon capture","authors":"Briggs M.O. Ogunedo , Basil Wadi , Vasilije Manovic , Seyed Ali Nabavi","doi":"10.1016/j.mtsust.2025.101123","DOIUrl":"10.1016/j.mtsust.2025.101123","url":null,"abstract":"<div><div>Despite making significant progress in terms of capture kinetics and capacity, the thermochemical and cyclic instability of silica-based amine functionalized adsorbents present challenges for their practical implementation and economic viability. Accordingly, this work provides a critical review to analyse factors affecting thermal and cyclic stability of functional silica-based sorbents. The first section provides background information and context for the review. The second section focuses on the synthesis routes employed for silica-based amine functionalized adsorbents. The third section delves into the mechanism underlying the thermal and cyclic instability observed in these adsorbents. The fourth section explored the factors that influence the thermal and cyclic stability of silica-based amine functionalized adsorbents. The last section dissects host-guest interaction in silica-based amine functionalized adsorbents. The review concludes by underscoring the importance of further research and development into host-guest interaction studies in amine functionalized adsorbents to optimize performance and address the challenges associated with thermal and cyclic instability, thereby enhancing the practical feasibility of these adsorbents in carbon capture applications.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"30 ","pages":"Article 101123"},"PeriodicalIF":7.1,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}