{"title":"Adsorbent technologies and applications for carbon capture, and direct air capture in environmental perspective and sustainable climate action","authors":"Olusola Olaitan Ayeleru , Helen Uchenna Modekwe , Oluwatayo Racheal Onisuru , Chinemerem Ruth Ohoro , Christianah Aarinola Akinnawo , Peter Apata Olubambi","doi":"10.1016/j.scca.2023.100029","DOIUrl":"https://doi.org/10.1016/j.scca.2023.100029","url":null,"abstract":"<div><p>The contribution of greenhouse gas and anthropogenic CO<sub>2</sub> to climate change is an undeniably issue that needs urgent attention from the environmental point of view. Global warming, a consequence of continued CO<sub>2</sub> emissions will gradually result in ecosystem disruption and drought. With the increasing problem of greenhouse gas (GHG) and the established environmentally unfriendly consequences associated with it, carbon capture and storage (CCS) was proposed as a measure to successfully reduce carbon footprints and a process of choice in proffering solutions to this challenge. To meet the Paris agreement's target of maintaining the global temperature rise below 2 °C necessitates the capture and removal of up to 20 Gt CO<sub>2</sub> per annum by the end of the century. However, going by the current global CO<sub>2</sub> capture and storage capacity of 0.0385 Gt CO<sub>2</sub>/annum (including the current direct air capture (DAC) capacity of 9,000 tons CO<sub>2</sub>/annum), it will take close to 21,000 years to achieve this set goal. Hence, the need to adopt sustainable low-temperature sorbent technology with efficient adsorption capabilities that will meet up with the bourgeoning operating cost and energy demand for DAC technology. In this review, sustainable and emerging adsorbent materials and technologies employed in carbon capture and storage were highlighted. Also, economic, and environmental benefits and public perception of carbon capture technology were enumerated.</p></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"3 ","pages":"Article 100029"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49718044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"CO2 captured by silicoaluminophosphate (SAPO) zeotypes","authors":"Haopeng Su , Yan Yan , Jia-Nan Zhang , Wenfu Yan","doi":"10.1016/j.scca.2023.100022","DOIUrl":"https://doi.org/10.1016/j.scca.2023.100022","url":null,"abstract":"<div><p>Excess carbon dioxide (CO<sub>2</sub>) in the atmosphere is causing great harm to the environment. Silicoaluminophosphate (SAPO) zeotypes have attracted great attention in CO<sub>2</sub> capture. In this review, we comprehensively summarized and discussed the advances in the CO<sub>2</sub> adsorption by SAPO zeotypes, the factors affecting the CO<sub>2</sub> capture such as topologies, cation types, and amine modifications, and the interaction between the H<sub>2</sub>O, SO<sub>x</sub>, and NO<sub>x</sub> and the framework of SAPOs as well as their influence on the CO<sub>2</sub> adsorption performance. At the end of the review, we raised the key challenges, current trends in the development of SAPO zeotypes, future research directions, and possible solutions to achieve the deployment of effective SAPO materials in CO<sub>2</sub> capture.</p></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"2 ","pages":"Article 100022"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49710722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hansnath Tiwari , Kulbhushan Samal , Sachin Rameshrao Geed , Sounak Bera , Chandan Das , Kaustubha Mohanty
{"title":"Green synthesis of silver nanoparticles for ultrafiltration membrane surface modification and antimicrobial activity","authors":"Hansnath Tiwari , Kulbhushan Samal , Sachin Rameshrao Geed , Sounak Bera , Chandan Das , Kaustubha Mohanty","doi":"10.1016/j.scca.2023.100031","DOIUrl":"https://doi.org/10.1016/j.scca.2023.100031","url":null,"abstract":"<div><p>This study presents the application of biosynthesized silver nanoparticles (AgNPs) for modifying the surface of ultrafiltration membranes to confer antimicrobial properties. The AgNPs were synthesized using leaf extract of the medicinal plant <em>Mimusops elengi L</em>, and their characterization was carried out using UV spectroscopy, FTIR, XRD, FESEM, HRTEM, and AFM analyses. The optimal conditions for the synthesis of AgNPs were determined to be 240 min of reaction time, pH 9.5, 1:1 (v/v) ratio of initial concentration of precursor to bio-extract, and 323 K temperature. The synthesized AgNPs were found to be spherical with an average size of 20 nm and crystalline in nature. The AgNPs were then deposited on flat sheet polyether sulfone (PES) membranes (MWCO 30 kDa) using the dip coating technique. The deposition of AgNPs on the membrane surface was confirmed using FESEM and EDX analysis. The resulting AgNPs-incorporated membrane demonstrated effective antibacterial activity against <em>E.coli</em>. These findings highlight the potential of biosynthesized AgNPs for developing functionalized ultrafiltration membranes with antimicrobial properties.</p></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"3 ","pages":"Article 100031"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49718057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Green approach for chemical production from waste cooking oils","authors":"Jonathan Harris, Anh N. Phan","doi":"10.1016/j.scca.2023.100017","DOIUrl":"https://doi.org/10.1016/j.scca.2023.100017","url":null,"abstract":"<div><p>This work demonstrates a green conversion of waste cooking oil in a continuous mode into esters, fatty acids and hydrocarbons within seconds via cold plasma catalytic approaches. Up to 60 wt.% gaseous hydrocarbons (C<sub>1<img></sub>C<sub>6</sub>) was achieved within 11 s reaction time in hydrogen environment. Products distribution and selectivity can be easily tuned e.g. up to 43 wt.% esters (in the presence of Ni/Al<sub>2</sub>O<sub>3</sub> in N<sub>2</sub> environment at 30 W) or up to 46 wt.% fatty acids to be obtained (BaTiO<sub>3</sub> packing under N<sub>2</sub> at 30 W). The selectivity of products is strongly influenced by the environment, e.g. H<sub>2</sub> environment promoting fatty acid methyl esters formation whereas hydrocarbons are dominant in N<sub>2</sub> environment.</p></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"2 ","pages":"Article 100017"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49732907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Somtochukwu Godfrey Nnabuife , Eni Oko , Boyu Kuang , Abdulrauf Bello , Azikiwe Peter Onwualu , Sherry Oyagha , James Whidborne
{"title":"The prospects of hydrogen in achieving net zero emissions by 2050: A critical review","authors":"Somtochukwu Godfrey Nnabuife , Eni Oko , Boyu Kuang , Abdulrauf Bello , Azikiwe Peter Onwualu , Sherry Oyagha , James Whidborne","doi":"10.1016/j.scca.2023.100024","DOIUrl":"https://doi.org/10.1016/j.scca.2023.100024","url":null,"abstract":"<div><p>Hydrogen (H<sub>2</sub>) usage was 90 tnes (Mt) in 2020, almost entirely for industrial and refining uses and generated almost completely from fossil fuels, leading to nearly 900 Mt of carbon dioxide emissions. However, there has been significant growth of H<sub>2</sub> in recent years. Electrolysers' total capacity, which are required to generate H<sub>2</sub> from electricity, has multiplied in the past years, reaching more than 300 MW through 2021. Approximately 350 projects reportedly under construction could push total capacity to 54 GW by the year 2030. Some other 40 projects totalling output of more than 35 GW are in the planning phase. If each of these projects is completed, global H<sub>2</sub> production from electrolysers could exceed 8 Mt by 2030. It's an opportunity to take advantage of H<sub>2</sub>S prospects to be a crucial component of a clean, safe, and cost-effective sustainable future. This paper assesses the situation regarding H<sub>2</sub> at the moment and provides recommendations for its potential future advancement. The study reveals that clean H<sub>2</sub> is experiencing significant, unparalleled commercial and political force, with the amount of laws and projects all over the globe growing quickly. The paper concludes that in order to make H<sub>2</sub> more widely employed, it is crucial to significantly increase innovations and reduce costs. The practical and implementable suggestions provided to industries and governments will allow them to fully capitalise on this growing momentum.</p></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"2 ","pages":"Article 100024"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49732816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pierre Stiernet , Bo Pang , Daniel Taton , Jiayin Yuan
{"title":"The promise of N-heterocyclic carbenes to capture and valorize carbon dioxide","authors":"Pierre Stiernet , Bo Pang , Daniel Taton , Jiayin Yuan","doi":"10.1016/j.scca.2023.100018","DOIUrl":"https://doi.org/10.1016/j.scca.2023.100018","url":null,"abstract":"<div><p>With increasing environmental concerns due to the anthropologic emissions of greenhouse gasses, especially carbon dioxide (CO<sub>2</sub>), the development of new technologies to capture the latter is of great public value. While amino-containing materials excel in capturing CO<sub>2</sub>, they generally suffer from a few limitations, namely, the high energy penalty for desorption and the obstacle to directly convert CO<sub>2</sub> into valuable resources. In this context, molecular or polymeric compounds based on <em>N</em>-heterocyclic carbenes (NHCs) have emerged as versatile alternatives to efficiently sequester CO<sub>2</sub>. NHCs are among the most investigated reactive species in chemistry: not only have they been intensively used as ligands for transition metal catalysts but also they exhibit a rich chemistry, either as true reagents or as organic catalysts. However, their air- and moisture-sensitivity represents a limitation to their use in synthesis. As reviewed thereafter, NHCs can selectively react with CO<sub>2</sub> forming stable adducts, in the form of zwitterionic betaine-type species, providing CO<sub>2</sub> directly-on-site for further fixation. Advances in the use of NHCs in this field are illustrated in this paper with a special emphasis on integration of NHCs in materials enabling heterogeneous utilizations in capture and catalysis.</p></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"2 ","pages":"Article 100018"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49732903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The impact of Direct Air Capture during the last two decades: A bibliometric analysis of the scientific research, part I","authors":"Daniel Casaban, Sean Ritchie, Elena Tsalaporta","doi":"10.1016/j.scca.2022.100009","DOIUrl":"10.1016/j.scca.2022.100009","url":null,"abstract":"<div><p>The controversy about meeting the expected capture demands from carbon dioxide removals such as Direct Air Capture (DAC) are debatable. In the past, the vast investment in renewable technology is allowing today's rapid deployment. Why is this not currently happening in the CO<sub>2</sub> capture area? This bibliometric analysis which focused on the use of solid sorbents in the CO<sub>2</sub> capture field between 2001 and 2021, aims to answer these questions. The study reviewed three capture methods: post-combustion, pre-combustion and DAC, with particular emphasis on the latter. To understand the evolution of DAC, this novel approach highlights which authors and countries have been investigating the use of solid sorbents. The outcomes of this research showed that, during the first decade, there was a minor interest in funding and investigating solid sorbents for DAC solutions. It was only at the end of the second period when the use of these materials in the topic emerged to the surface. Acting as an example, the United States, China and the United Kingdom spent more financial help to investigate the use of sorbents. However, all of today's CO<sub>2</sub> capture plants are working for enhanced oil recovery. In the Republic of Ireland, there are a few articles exploring the use of these materials to uptake CO<sub>2</sub>. It is possible that certain articles were not considered by the software. Upcoming analysis will answer this question and include all the existing materials in the wide spectrum of solid sorbents at the CO<sub>2</sub> capture field.</p></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"1 ","pages":"Article 100009"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772826922000086/pdfft?md5=74cd551e8a08ea392c86ebd08542327e&pid=1-s2.0-S2772826922000086-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81430543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Conceptual design of an autonomous catalytic generator based on bioethanol steam reforming over the ferrite catalyst","authors":"L.Y. Dolgikh, A.A. Zhokh, A.I. Trypolskyi, I.L. Stolyarchuk, Y.I. Pyatnitsky, P.E. Strizhak","doi":"10.1016/j.scca.2022.100010","DOIUrl":"10.1016/j.scca.2022.100010","url":null,"abstract":"<div><p>The conceptual design of a portable autonomous catalytic hydrogen generator is introduced. The generator is based on the bioethanol steam reforming over the developed ferrite catalyst. The generator admits the utilization of thermal energy of the reaction mixture for vaporization and heating the input water-alcohol mixture. Moreover, the generator is characterized by a simple single-stage design without a stage for hydrogen purification. The generator is capable to produce 1 kW/h of electricity with 0.63 kg/h water/alcohol mixture (50% ethanol) consumption. The energy conversion efficiency of the developed generator is 44%. The proposed hydrogen generator is suitable for various applications related to on-site hydrogen production.</p></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"1 ","pages":"Article 100010"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772826922000098/pdfft?md5=185952b9fd7d68aedf154f4f246a2c9e&pid=1-s2.0-S2772826922000098-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82254888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Developments in the investigation of nitrogen and oxygen stable isotopes in atmospheric nitrate","authors":"Shah Saud , Shah Fahad , Shah Hassan","doi":"10.1016/j.scca.2022.100003","DOIUrl":"10.1016/j.scca.2022.100003","url":null,"abstract":"<div><p>Under the influence of human activities and the rapid development of industry and agriculture, atmospheric nitrate (NO<sup>−</sup><sub>3</sub>) pollution is becoming increasingly serious and has become an environmental problem worldwide. The stable isotopic composition of atmospheric NO<sup>−</sup><sub>3</sub> (δ<sup>15</sup>N, δ<sup>18</sup>O, and Δ<sup>17</sup>O) can provide a strong basis for understanding the atmospheric nitrogen cycle to effectively control atmospheric NO<sub>x</sub> pollution. In this work, the δ<sup>15</sup>N values associated with different sources of atmospheric NO<sup>−</sup><sub>3</sub>, the seasonal variation characteristics of δ<sup>15</sup>N-NO<sup>−</sup><sub>3</sub>, and the main influencing factors are reviewed. The δ<sup>18</sup>O and Δ<sup>17</sup>O values of different oxidants in the atmosphere and the spatiotemporal distribution characteristics and possible influencing factors of the δ<sup>18</sup>O and Δ<sup>17</sup>O values of atmospheric NO<sup>−</sup><sub>3</sub> are summarised. In addition, key advances in NO<sup>−</sup><sub>3</sub> isotopic analysis technique is reviewed. Based on previous work, it is suggested that more attention should be given to the oxidative formation mechanism of NO<sup>−</sup><sub>3</sub> (spatio-temporal differences in the isotopic compositions of different types of oxidants), the δ<sup>15</sup>N composition of different NO<em>x</em> sources, and the processes of formation, transport, depositional/chemical loss ofatmospheric NO<sup>−</sup><sub>3</sub> with the help of observation and chemical models.</p></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"1 ","pages":"Article 100003"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772826922000037/pdfft?md5=4bb129345f1c205adfd23c6f8f124594&pid=1-s2.0-S2772826922000037-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83792997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Eric Schuler , Michele Morana , N. Raveendran Shiju , Gert-Jan M. Gruter
{"title":"A new way to make oxalic acid from CO2 and alkali formates: Using the active carbonite intermediate","authors":"Eric Schuler , Michele Morana , N. Raveendran Shiju , Gert-Jan M. Gruter","doi":"10.1016/j.scca.2022.100001","DOIUrl":"https://doi.org/10.1016/j.scca.2022.100001","url":null,"abstract":"<div><p>Conversion of CO<sub>2</sub> to valuable chemicals such as polymers via the electrochemical reduction of CO<sub>2</sub> to formate followed by the formate to oxalate coupling reaction (FOCR) is an interesting concept to replace fossil feedstocks with renewable ones. Yet, the activation of CO<sub>2</sub> is challenging and energy-intensive and today the production of one oxalate molecule first requires the reduction of two CO<sub>2</sub> molecules. Recently we confirmed the crucial role of the reactive carbonite intermediate in the FOCR. Due to its high reactivity, this intermediate might also be a strong enough nucleophile to react with CO<sub>2</sub> directly. If this is the case, we can form oxalate directly from CO<sub>2</sub> and formate and avoid the need for double electrochemical CO<sub>2</sub> reduction in oxalate production. In this work, we successfully established the conversion of CO<sub>2</sub> (with a theoretical yield of 52%) to oxalate (via the reaction with carbonite), as well as to formate and carbonate. The direct reaction of the reactive carbonite intermediate with CO<sub>2</sub> was the dominant pathway for CO<sub>2</sub> incorporation in oxalate. For enhancing the CO<sub>2</sub> incorporation in oxalate, we found a reaction temperature of 200°C, stoichiometric amounts of the base, and the presence of CO<sub>2</sub> in the supercritical state most suitable. The residence time is strongly depending on the reactor type but should be kept to a minimum to avoid carbonate formation. The presence of high amounts of hydride and supercritical CO<sub>2</sub> appeared to also cause the formation of carbonates as a side-product. The carbonate formation increased with higher temperatures and longer reaction times, which suggests a consecutive decomposition of oxalate formed in the reaction.</p></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"1 ","pages":"Article 100001"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772826922000013/pdfft?md5=235bb51faf7c1bded18cf51e9ee6f096&pid=1-s2.0-S2772826922000013-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136850567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}