RSC sustainability最新文献

{"title":"Correction: Techno-economic assessment of two-stage hydropyrolysis of lignin for BTX production using iron-based catalysts","authors":"Giuseppe Bagnato, Jamie Horgan and Aimaro Sanna","doi":"10.1039/D5SU90025E","DOIUrl":"https://doi.org/10.1039/D5SU90025E","url":null,"abstract":"<p >Correction for ‘Techno-economic assessment of two-stage hydropyrolysis of lignin for BTX production using iron-based catalysts’ by Giuseppe Bagnato <em>et al.</em>, <em>RSC Sustainability</em>, 2025, <strong>3</strong>, 1448–1460.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 5","pages":" 2423-2423"},"PeriodicalIF":0.0,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su90025e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918850","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":"Life cycle assessment of formic acid synthesis utilizing CO2 from direct air capture†","authors":"Nicholas Badger, Dylan Mattice, Matthew Atwood and Shahriar Amini","doi":"10.1039/D5SU00111K","DOIUrl":"https://doi.org/10.1039/D5SU00111K","url":null,"abstract":"<p >This study presents a comprehensive cradle-to-gate life cycle assessment (LCA) of formic acid (FA) synthesis from direct air captured (DAC) carbon dioxide (CO<small>₂</small>) utilizing chemical plant waste heat. The research focuses on a project to implement a low-temperature solid sorbent DAC system co-located with a FA production facility at a fertilizer plant, utilizing industrial waste heat from nitric acid production. This study employs projected operational data from two companies which own the DAC and FA conversion technologies to examine the environmental impacts and benefits of this DAC-to-FA conversion process. By leveraging waste heat and renewable energy, the proposed project demonstrates the environmental advantages of advanced carbon utilization technologies, providing valuable insights for future policy and industrial applications in sustainable chemical manufacturing. Key results indicate that the capture and conversion process, when powered by renewable energy, achieves a net negative global warming potential of −0.806 kg CO<small>₂</small> eq. per kg FA produced, contrasted against traditional FA production methods which are calculated to emit at best +2.03 kg CO<small>₂</small> eq. The use of waste heat significantly reduces the energy consumption of the process. Compared to traditional FA production methods, the processes also show substantial reductions in ozone depletion, fossil fuel depletion, and other environmental impacts. The novelty of this study lies in its analysis of DAC technology using projected and actual operational data from a DAC development company, which is unique in academic studies. This enhances the accuracy of the LCA and provides a robust foundation for understanding the environmental impacts and benefits of the proposed system. This study also aims to be the first LCA to analyze the life cycle impacts of DAC-to-FA conversion technology.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 5","pages":" 2404-2421"},"PeriodicalIF":0.0,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00111k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918855","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":"The impact of co-feeding carbon dioxide in Fischer–Tropsch-to-olefin catalysis: an inelastic neutron scattering study","authors":"Alisha L. Davidson, Ramandeep S. Dosanjh, Stewart F. Parker and David Lennon","doi":"10.1039/D5SU00042D","DOIUrl":"https://doi.org/10.1039/D5SU00042D","url":null,"abstract":"<p >The addition of CO<small>₂</small> to a syngas feed stream in Fischer–Tropsch to Olefin (FTO) catalysis is investigated by means of inelastic neutron scattering (INS) spectroscopy using ambient pressure CO hydrogenation at 623 K as a test reaction. The principal objective being to explore how the presence of CO<small>₂</small> affects the nature of a hydrocarbonaceous overlayer that forms during the conditioning phase of the catalytic process. The candidate FTO catalyst examined is Fe-based and doubly promoted with sodium (2000 ppm) and sulfur (100 ppm). Temperature-programmed oxidation profiles recorded after 3, 6, 12 and 24 h time-on-stream (T-o-S) reveal progressive carbon retention by the catalyst mainly in the form of amorphous carbon. The INS spectrum as a function of T-o-S confirms the presence of a hydrocarbonaceous overlayer, but with a much higher hydrogen concentration than previously observed for Fe-based FTO catalysts operating solely with a syngas feed. These preliminary results are considered with respect to a possible role for CO<small>₂</small> perturbing the equilibrium between iron carbides and oxides.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 5","pages":" 2246-2254"},"PeriodicalIF":0.0,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00042d?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918902","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":"On decoating of polymer electrolyte-based solid-state battery cathodes†","authors":"Anna Thielen, Thomas Leißner, Tobias Eisenmann and Urs A. Peuker","doi":"10.1039/D5SU00082C","DOIUrl":"https://doi.org/10.1039/D5SU00082C","url":null,"abstract":"<p >It is assumed that solid-state batteries (SSBs) represent a significant advancement in battery technology, offering a range of benefits over traditional lithium-ion batteries (LIBs). Nevertheless, there has been a scarcity of research examining the sustainability of these materials, with only a limited number of recent studies focusing on recycling concepts. In this study we examined the process behaviour of polymer based composite cathodes. For this, we identified the most suitable comminution principles to separate the cathode active material (CAM), polymeric solid-state electrolyte (SSE) and conductive additives from the electrode foil. In addition to thermal pre-treatment of the cathodes with subsequent dry mechanical stressing in a hammer mill, stressing in a wet agitated media mill was found to be a particularly suitable processing approach. Based on these findings, a preliminary process design for recycling polymer-based SSBs is proposed.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 5","pages":" 2377-2389"},"PeriodicalIF":0.0,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00082c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918853","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":"Ruthenium-catalyzed dimerization of vanillin for the formation of a biobased epoxy thermoset resin†","authors":"Flavia Ferrara, Iuliana Ribca, Namratha Prabhu, Josselin Mante, Maureen Gumbo, Andreas Ekebergh, Mats Johansson and Nina Kann","doi":"10.1039/D5SU00165J","DOIUrl":"https://doi.org/10.1039/D5SU00165J","url":null,"abstract":"<p >Vanillin is one of few lignin platform chemicals that are currently available on industrial scale. Seeking to find biobased alternatives to the reprotoxic compound bisphenol A (BPA), we have successfully dimerized three different monomeric vanillin derivatives in a ruthenium-catalyzed Tischenko reaction. The resulting esters were characterized by NMR, FTIR, HRMS, and single crystal X-ray diffraction. The thermal behaviour of one of these derivatives, the epoxy divanillin ester <strong>EDVE</strong>, was studied further by DSC and TGA. <strong>EDVE</strong> was subsequently applied towards the preparation of an epoxy thermoset resin <em>via</em> curing with Jeffamine D-400. The thermoset formulation was thermally cured, monitoring the curing with DSC and FTIR. The final thermoset was then characterized with respect to physical and mechanical properties with DSC, TGA, and DMA. This catalytic approach provides a new strategy to access vanillin-based epoxides that could potentially replace bisphenol A.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 5","pages":" 2366-2376"},"PeriodicalIF":0.0,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00165j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918852","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":"Man-made textile fibres from pectin†","authors":"Aleksandra M. Kozlowski, Kristina E. Lindgren, Gino Mangiante and Tobias Köhnke","doi":"10.1039/D5SU00048C","DOIUrl":"https://doi.org/10.1039/D5SU00048C","url":null,"abstract":"<p >Low-methyl esterified pectin with a degree of methylation of 33% was shaped into continuous textile fibres <em>via</em> wet spinning with a calcium chloride coagulation bath. The resulting fibres exhibit mechanical properties approaching those of viscose and show promise as biobased, scalable, and green-produced alternatives to conventional man-made fibres.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 5","pages":" 2205-2209"},"PeriodicalIF":0.0,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00048c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918901","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":"Exploring mineral–organic interactions for eco-friendly concrete alternatives: a radical concept","authors":"Peter Spencer, Hejie Li, Scott Hocknull, Gareth Chalmers and Tianfang Wang","doi":"10.1039/D4SU00696H","DOIUrl":"https://doi.org/10.1039/D4SU00696H","url":null,"abstract":"<p >Concrete is central to the civil construction industry worldwide, which is facing increasing governmental, social, and economic pressure to alleviate its considerable environmental impact. This impact centres around Portland cement, the main binder of concrete. The production of a single tonne of Portland cement generates 0.9 tonne of CO<small>₂</small> gas along with other negative environmental impacts. In the quest for alternate construction materials, there is much focus on artificial geopolymers which use aluminosilicate-based binders, the production of which does not liberate large amounts of CO<small>₂</small>. However, due to the use of dangerous alkaline chemicals and high curing temperatures, industry is reluctant to implement artificial geopolymers despite their superior material properties. The research into replicating natural geopolymers appears to be in its infancy, possibly due to the underappreciated interaction between organic and mineral fractions. However, mineral–organic interactions are well researched, and the materials produced have considerably favourable properties. This work proposes the application of free radical chemistry to enhance and accelerate mineral–organic interactions to produce analogues of natural rock. The use of free radicals greatly reduces the energy requirements for reactions. They also efficiently degrade organic intermediates and promote mineral polymerisation. The benefits of these rock analogues lie not only in their material properties but also the potential re-use of waste building materials such as iron, aluminium, and glass. Therefore, the environmental impact of these materials will be substantially lower than that of concrete, with superior material properties. The implications of this study is a shift in conventional thinking away from current Portland cement-based construction materials to considering analogues of natural geopolymers.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 5","pages":" 2064-2078"},"PeriodicalIF":0.0,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d4su00696h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918907","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":"Organocatalyzed aza-Payne-type rearrangement of epoxy amines and carbon dioxide for efficient construction of oxazolidinones†","authors":"Xin Yuan, Jiahui Ma, Zhenjiang Li, Ziqi Liu, Yanqi Shi, Min Zhang, Yujia Wang, Xin Zou, Sha Li and Kai Guo","doi":"10.1039/D5SU00192G","DOIUrl":"https://doi.org/10.1039/D5SU00192G","url":null,"abstract":"<p >The aza-Payne-type rearrangement reaction, employing epoxy amines and carbon dioxide (CO<small>₂</small>), offers an atom economical method for synthesizing 5-hydroxymethyl oxazolidinones. Traditionally, alkaline catalysts are primarily utilized for this transformation. In this work, a halide-free pyridinolate based binary organocatalyst was developed for this transformation under atmospheric pressure. The ion pair organocatalyst consists of a positively charged hydrogen-bond donor (HBD<small>⁺</small>) and a negatively charged hydrogen bond acceptor (HBA<small>⁻</small>). These HBD<small>⁺</small>/HBA<small>⁻</small> ion pair catalysts were generated through the deprotonation of weakly acidic 2-, 3-, and 4-hydroxy pyridine (4-HOP) using super strong nitrogen bases (<em>i.e.</em> TBD, MTBD, DBU, TMG, and DMAP). The reaction achieved high selectivity for oxazolidinones, with minimal cyclic carbonate formation. Seven ion pair catalysts were evaluated for catalyzing the aza-Payne-type rearrangement reaction of epoxy amine <strong>1a</strong> and carbon dioxide at 80 °C, using a 5 mol% catalyst loading and a carbon dioxide pressure of 0.1 MPa. Among them, the <strong>TBDH<small>⁺</small>/4-OP<small>⁻</small></strong> ion pair catalyst exhibited the best performance, achieving a high yield of oxazolidinones (84%) in 1 hour. A total of 14 oxazolidinones were synthesized with yields ranging from 72% to 97% under mild conditions (0.1 MPa CO<small>₂</small>, 60–80 °C). The dual activation mechanism of the catalyst was confirmed through NMR titration and control experiments. As a bifunctional catalyst, the ion pair polarized the oxygen atom of epoxy amines <em>via</em> H-bonding with N<small>⁺</small>–H, while the phenolate anion activated the N–H bonding of epoxy amines simultaneously, facilitating the subsequent insertion of carbon dioxide. This approach offers a new method for synthesizing oxazolidinones using organic ion pair catalysts, with promising potential for broader applications.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 5","pages":" 2390-2403"},"PeriodicalIF":0.0,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00192g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918854","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":"Medium-dependent regioselectivity of electrochemical bromination of methyl levulinate†","authors":"Dmitry A. Pirgach, Raghavendra Meena, Guanna Li, Fedor M. Miloserdov, Daan S. van Es, Pieter C. A. Bruijnincx and Johannes H. Bitter","doi":"10.1039/D5SU00037H","DOIUrl":"https://doi.org/10.1039/D5SU00037H","url":null,"abstract":"<p >An electrochemical method for the bromination of renewable methyl levulinate using ammonium bromide is reported. Regioselectivity depended on the solvent used: the formation of 5-bromolevulinate was favored in methanol and 3-bromolevulinate in a MeCN : H<small>₂</small>O mixture. To explain the observed change, different bromination mechanisms were proposed.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 5","pages":" 2198-2204"},"PeriodicalIF":0.0,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su00037h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918900","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":"Correction: Continuous flow production of γ-valerolactone from methyl-levulinate promoted by MOF-derived Al2O3–ZrO2/C catalysts","authors":"Marina Ronda-Leal, Alina M. Balu, Rafael Luque, Francesco Mauriello, Alberto Ricchebuono, Christophe Len, Antonio A. Romero and Emilia Paone","doi":"10.1039/D5SU90024G","DOIUrl":"https://doi.org/10.1039/D5SU90024G","url":null,"abstract":"<p >Correction for ‘Continuous flow production of γ-valerolactone from methyl-levulinate promoted by MOF-derived Al<small>₂</small>O<small>₃</small>–ZrO<small>₂</small>/C catalysts’ by Marina Ronda-Leal <em>et al.</em>, <em>RSC Sustainability</em>, 2025, https://doi.org/10.1039/d4su00797b.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 5","pages":" 2422-2422"},"PeriodicalIF":0.0,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d5su90024g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918856","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}