ChemSusChem最新文献_第7页

Hydrogen From Simulated Seawater Using Long-Term Stable and Cost-Effective Plasmonic Photocatalysts 利用长期稳定、低成本的等离子体光催化剂从模拟海水中提取氢气。

IF 5.9 2区化学

ChemSusChem Pub Date : 2026-09-22 DOI: 10.1002/cssc.71072

Fons Dingenen, Manu Donders, Rajeshreddy Ninakanti, Christine Vantomme, Daniel Arenas-Esteban, Rituraj Borah, Sara Bals, Sammy W. Verbruggen

{"title":"Hydrogen From Simulated Seawater Using Long-Term Stable and Cost-Effective Plasmonic Photocatalysts","authors":"Fons Dingenen, Manu Donders, Rajeshreddy Ninakanti, Christine Vantomme, Daniel Arenas-Esteban, Rituraj Borah, Sara Bals, Sammy W. Verbruggen","doi":"10.1002/cssc.71072","DOIUrl":"10.1002/cssc.71072","url":null,"abstract":"Generating hydrogen directly from seawater is an attractive feature for realizing large-scale solar fuel production. Here, we present an effective photocatalyst design that not only considers solar light activity but also long-term durability and optimized manufacturing costs. A series of stabilized bimetallic Au–Ag plasmonic “rainbow” nanoparticles were synthesized and grafted at low loadings onto TiO2 substrates, yielding strong visible-light absorption and enhanced photocatalytic activity. To address the intrinsic instability of (plasmonic) metal nanoparticles in saline environments, two encapsulation strategies were investigated: insulating layer-by-layer (LbL) polyelectrolyte shells and conductive polyaniline (PANI) shells formed via in situ polymerization. In simulated seawater, a maximum H2 evolution rate of 348 ± 108 µmol g−1 h−1 was achieved for TiO2 + 2 wt% “rainbow” PANI-stabilized nanoparticles. PANI-stabilized plasmonic catalysts outperformed both bare and LbL-coated samples while maintaining full activity even after 1 month of storage in the dark in simulated seawater. These results demonstrate that conductive polymer encapsulation effectively preserves plasmonic activity even in harsh media, offering a prospect toward durable and economically viable solar hydrogen production from simulated seawater.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":"19 18","pages":""},"PeriodicalIF":5.9,"publicationDate":"2026-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13598271/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Breaking the Yield-Selectivity Trade-Off in Polypropylene Upcycling via Ternary-Active ZnAlO Nanocomposites 利用三元活性ZnAlO纳米复合材料打破聚丙烯升级循环产率与选择性的权衡。

IF 5.9 2区化学

ChemSusChem Pub Date : 2026-09-20 DOI: 10.1002/cssc.71070

Guanyu Zhang, Liang Wang, Qiuhan Pu, Ru Sun, Qing Cheng, Yuan Jiang, Ge Kong, Zengjian Guo, Xuesong Zhang, Lujia Han

{"title":"Breaking the Yield-Selectivity Trade-Off in Polypropylene Upcycling via Ternary-Active ZnAlO Nanocomposites","authors":"Guanyu Zhang, Liang Wang, Qiuhan Pu, Ru Sun, Qing Cheng, Yuan Jiang, Ge Kong, Zengjian Guo, Xuesong Zhang, Lujia Han","doi":"10.1002/cssc.71070","DOIUrl":"10.1002/cssc.71070","url":null,"abstract":"Plastic upcycling into iso-alkenes offers a sustainable route to mitigate plastic pollution and reduce the carbon footprint relative to petroleum-derived routes. However, selective C─C bond cleavage remains challenging, often resulting in broad product distributions and limited yields. Here, we report a tandem decomposition-catalysis strategy employing ternary-active ZnAlO catalysts for the selective conversion of polypropylene (PP) into narrow-range iso-alkenes. Zn10AlO (10 wt% Zn proportion) achieved a liquid yield of 77.75 wt% with 83.71% selectivity toward C8–C12 iso-alkenes. The catalyst maintained liquid yield above 77 wt% and selectivity of ~84% toward narrow-range iso-alkenes over 10 successive cycles without catalyst regeneration. Furthermore, Zn10AlO exhibited strong tolerance toward real-world PP waste, delivering product distributions comparable to those obtained from virgin PP. Structural and catalytic investigations revealed that the ternary-active ZnO─ZnAl2O4─Al2O3 nanocomposite, featuring balanced acidity and abundant oxygen vacancies, promoted controlled β-scission and isomerization while suppressing excessive cracking. Simply put, this work established a catalyst design strategy that integrated ternary-active nanocomposites and tailored acidity to overcome the yield-selectivity trade-off in PP upcycling and enabled the efficient production of value-added narrow-range iso-alkenes.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":"19 18","pages":""},"PeriodicalIF":5.9,"publicationDate":"2026-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149011677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Industrialization of Electrocatalytic Co2 Reduction: Analysis of Full-Chain Bottlenecks and Synergistic Solutions 电催化Co2还原产业化：全链瓶颈分析及协同解决方案。

IF 5.9 2区化学

ChemSusChem Pub Date : 2026-09-20 DOI: 10.1002/cssc.71073

Yuyao Xin, Yuanduo Li, Yujia Gao, Zhishuo Fu, Suping Li, Lei Wang, Jianping Lai

{"title":"Industrialization of Electrocatalytic Co2 Reduction: Analysis of Full-Chain Bottlenecks and Synergistic Solutions","authors":"Yuyao Xin, Yuanduo Li, Yujia Gao, Zhishuo Fu, Suping Li, Lei Wang, Jianping Lai","doi":"10.1002/cssc.71073","DOIUrl":"10.1002/cssc.71073","url":null,"abstract":"Electrocatalytic CO2 reduction (CO2RR) converts CO2 into high-value chemicals and fuels using renewable electricity, serving as a core technology for recycling of carbon resources and supporting the carbon neutrality goal. Nevertheless, multiple bottlenecks hinder its transition toward industrial-scale application. These include poor catalyst stability under industrial-level high current density, uneven mass transfer and limited durability of key components during electrolyzer scale-up, high energy consumption together with difficult product separation and purification, mismatches between intermittent renewable energy supply and continuous electrolysis operation, as well as insufficient synergy between fundamental research and engineering applications. Economic factors also constrain industrialization, such as weak cost competitiveness, long investment-return periods, and imperfect carbon-pricing mechanisms. Aiming at the full-chain industrial implementation of CO2RR, this paper systematically analyzes the challenges and underlying mechanisms of four core modules: catalysts, electrolysis systems, product separation, and system integration. It reviews the latest technological breakthroughs and feasible solutions, emphasizing the importance of fundamental research-engineering synergy, policy support, and interdisciplinary integration. This work provides a systematic reference and rational development direction for scientific research breakthroughs and industrial transformation of CO2RR technology.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":"19 18","pages":""},"PeriodicalIF":5.9,"publicationDate":"2026-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149011660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cation Effects on Pre-Reactive CO2 Accessibility and Interfacial Transfer in Aqueous Glycinate Solutions via Molecular Dynamics 阳离子对甘氨酸水溶液中预反应CO2可及性和界面转移的分子动力学影响。

IF 5.9 2区化学

ChemSusChem Pub Date : 2026-09-20 DOI: 10.1002/cssc.71069

Seungtae Kim, Minwoo Kim, Jee-Eun Choi, Hido Woo, Bomin Kim, Siyu Guo, Won Bo Lee

{"title":"Cation Effects on Pre-Reactive CO2 Accessibility and Interfacial Transfer in Aqueous Glycinate Solutions via Molecular Dynamics","authors":"Seungtae Kim, Minwoo Kim, Jee-Eun Choi, Hido Woo, Bomin Kim, Siyu Guo, Won Bo Lee","doi":"10.1002/cssc.71069","DOIUrl":"10.1002/cssc.71069","url":null,"abstract":"Alkali-metal amino acid solutions are attractive liquid sorbents for carbon capture. Potassium glycinate shows more favorable CO2 capture behavior than sodium and lithium analogues despite sharing the same reactive amine motif. However, the molecular origin of this countercation effect remains unresolved. Here, we use molecular dynamics simulations to examine how K+, Na+, and Li+ regulate CO2 accessibility and transport in aqueous glycinate solutions. We treat CO2 uptake as a multistep process in which interfacial accessibility and transport precede chemical conversion, and we isolate this pre-reactive stage. Li+ forms a compact coordination environment with glycinate and water, restricting molecular mobility and reducing CO2 access to glycinate-centered regions. In contrast, K+ maintains a more diffuse solvation environment, supporting higher diffusivities, larger interfacial CO2 populations, and more frequent vapor-to-liquid transfer events. Collectively, these results identify interfacial gating, defined as cation-dependent control of CO2 population and exchange frequency at the vapor–liquid boundary, as the interfacial manifestation of a cation-controlled CO2 accessibility mechanism around glycinate.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":"19 18","pages":""},"PeriodicalIF":5.9,"publicationDate":"2026-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149011658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electronic Modulation of Bi-Decorated Ti3C2Tx MXene Toward Highly Efficient Electrocatalytic Nitrate Reduction to Ammonia 电子调制双修饰Ti3C2Tx MXene高效电催化硝酸还原制氨

IF 5.9 2区化学

ChemSusChem Pub Date : 2026-09-17 DOI: 10.1002/cssc.71063

Xianghua Hou, Junlong Zheng, Mingying Chen, Longchao Zhuo, Zhiwei Wang, Wenxian Liu, Jun Luo, Xijun Liu

{"title":"Electronic Modulation of Bi-Decorated Ti3C2Tx MXene Toward Highly Efficient Electrocatalytic Nitrate Reduction to Ammonia","authors":"Xianghua Hou, Junlong Zheng, Mingying Chen, Longchao Zhuo, Zhiwei Wang, Wenxian Liu, Jun Luo, Xijun Liu","doi":"10.1002/cssc.71063","DOIUrl":"10.1002/cssc.71063","url":null,"abstract":"Electrochemical nitrate reduction (NO3RR) provides a sustainable route for ammonia (NH3) synthesis while also enabling the treatment of nitrogen-containing wastewater. Herein, Bi nanoparticles were anchored on Ti3C2Tx MXene through an in situ reduction strategy to form Bi–NP/MXene. Compared with pristine MXene, Bi–NP/MXene exhibits markedly improved NO3RR activity and NH3 selectivity, achieving a Faradaic efficiency of 93.2% at −1.2 V versus reversible hydrogen electrode (RHE) and an NH3 yield rate of 195.3 μmol h−1 cm−2 at −1.4 V versus RHE. The catalyst retains stable performance over six consecutive cycles and 1200 min of continuous electrolysis. Density functional theory calculations reveal that Bi incorporation regulates nitrate-derived intermediate adsorption, suppresses H* binding, and reduces the energy barrier of the potential-determining step from 1.36 to 0.74 eV. Moreover, a Zn–NO3− battery employing Bi–NP/MXene enables simultaneous NH3 production and electricity generation.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":"19 18","pages":""},"PeriodicalIF":5.9,"publicationDate":"2026-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148987231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design for Remanufacturing and Resource Circulation in Proton Exchange Membrane Water Electrolysis Systems Using Sustainability Benefit Ratio 基于可持续效益比的质子交换膜电解系统再制造与资源循环设计。

IF 5.9 2区化学

ChemSusChem Pub Date : 2026-09-17 DOI: 10.1002/cssc.71071

Tomohiko Nakajima, Iwao Yamaguchi, Yuki Kinoshita

{"title":"Design for Remanufacturing and Resource Circulation in Proton Exchange Membrane Water Electrolysis Systems Using Sustainability Benefit Ratio","authors":"Tomohiko Nakajima, Iwao Yamaguchi, Yuki Kinoshita","doi":"10.1002/cssc.71071","DOIUrl":"10.1002/cssc.71071","url":null,"abstract":"Proton exchange membrane water electrolysis (PEMWE) is a promising route to low-carbon hydrogen production, but its sustainability remains incomplete unless the electrolyzer itself is designed for circularity. Repeated stack replacement can impose substantial lifecycle burdens because PEMWE relies on resource-intensive components such as iridium-based anodes, fluorinated polymer membranes, and titanium-based stack materials. Here, we investigate the significance of introducing remanufacturing into PEMWE systems from the perspective of design for remanufacturing and resource circulation. Repeated new-manufacturing and repeated remanufacturing scenarios are compared using the Sustainability Benefit Ratio (SBR), a lifecycle-oriented indicator that integrates greenhouse-gas burdens, avoided burdens, and valuation-weighted lifecycle factors into a unified circular-economy metric. The results show that remanufacturing consistently improves the cumulative environmental–economic balance relative to repeated new manufacturing, reduces carbon-footprint-based burdens, and enables repeated circulation of valuable stack-related resources while maintaining comparable hydrogen output. Cost decomposition and sensitivity analysis further reveal that the OER electrode governs the circular value of PEMWE remanufacturing and that its contribution can be translated into practical design targets in terms of catalyst cost, remanufacturing cost, recovery ratio, and electrochemical performance. These findings demonstrate that SBR can serve as a practical design-support tool for quantifying circular-economy value and guiding remanufacturing-oriented PEMWE development.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":"19 18","pages":""},"PeriodicalIF":5.9,"publicationDate":"2026-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cssc.71071","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148987217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of Composite Catalysts for Rechargeable Zinc–Air Batteries: Design Strategies and Recent Advances 可充电锌-空气电池复合催化剂的设计：设计策略与最新进展。

IF 5.9 2区化学

ChemSusChem Pub Date : 2026-09-17 DOI: 10.1002/cssc.71060

Zhiyang Xu, Zhao Deng, Yunxia Zhao, Gao-Feng Han, Yunfei Bu, Feng Li

{"title":"Design of Composite Catalysts for Rechargeable Zinc–Air Batteries: Design Strategies and Recent Advances","authors":"Zhiyang Xu, Zhao Deng, Yunxia Zhao, Gao-Feng Han, Yunfei Bu, Feng Li","doi":"10.1002/cssc.71060","DOIUrl":"10.1002/cssc.71060","url":null,"abstract":"Rechargeable zinc–air batteries are highly promising next-generation electrochemical energy storage devices because of their advantages, such as high theoretical energy density, enhanced safety, and environmental friendliness. The development of efficient and stable bifunctional oxygen electrocatalysts is crucial for improving the performance of zinc–air batteries. This review systematically summarizes recent design strategies and research progress in composite catalysts developed to address this challenge. First, the working principles of zinc–air batteries and the key challenges faced by oxygen electrode catalysis are outlined, including the large voltage gap, the difficulty of single active sites in simultaneously meeting the requirements for both the OER and ORR, and conflicts between material hydrophilicity and hydrophobicity. On this basis, the design principles of composite catalysts are discussed, with a focus on optimizing the electronic structure through synergistic effects between components, achieving high dispersion of active sites, and constructing heterointerfaces to enhance charge transfer and intermediate adsorption/desorption capabilities. Finally, prospects and future directions for composite catalysts in zinc–air batteries are presented. Ongoing efforts are needed in areas such as precise regulation of active sites, elucidation of multicomponent synergistic mechanisms, and improvement of durability under practical operating conditions to advance the practical application of high-performance and low-cost zinc–air batteries.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":"19 18","pages":""},"PeriodicalIF":5.9,"publicationDate":"2026-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148987254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research Progress and Prospects of Poly(Ionic Liquid)s for High-Performance Lithium Batteries 高性能锂电池用聚离子液体的研究进展与展望。

IF 5.9 2区化学

ChemSusChem Pub Date : 2026-09-17 DOI: 10.1002/cssc.71061

Tao Hu, Liangjie Gu, Panpan Dong, Weiqing Yang

{"title":"Research Progress and Prospects of Poly(Ionic Liquid)s for High-Performance Lithium Batteries","authors":"Tao Hu, Liangjie Gu, Panpan Dong, Weiqing Yang","doi":"10.1002/cssc.71061","DOIUrl":"10.1002/cssc.71061","url":null,"abstract":"Poly(ionic liquid)s (PIL) are a class of highly designable functional polymers that integrate the high ionic conductivity, a wide electrochemical stability window, and intrinsic flame retardancy of ionic liquids, positioning them as leading candidates to overcome the safety bottlenecks of conventional lithium batteries. This review systematically summarizes recent advances in PIL across three critical application areas: homogeneous solid electrolytes, composite solid electrolytes, and multifunctional electrode binders. It highlights PIL molecular design strategies, compositing approaches with flexible polymers, nanoparticle composites, and porous framework composites, as well as the performance advantages of bifunctional binders in both cathodes and anodes. Furthermore, this review provides an in-depth analysis of key challenges, including the inherent trade-off between ionic conductivity and mechanical strength, interfacial degradation over prolonged cycling, and high costs associated with large-scale manufacturing. Future directions are outlined with a focus on precise molecular engineering and in situ interfacial engineering, offering a forward-looking reference for the design of high-safety, high-performance solid-state lithium batteries.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":"19 18","pages":""},"PeriodicalIF":5.9,"publicationDate":"2026-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148987319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

TNO Heterostructure as Multifunctional Regulating Interfacial Layers for Stable Zinc-Ion Batteries TNO异质结构作为稳定锌离子电池的多功能调节界面层。

IF 5.9 2区化学

ChemSusChem Pub Date : 2026-09-17 DOI: 10.1002/cssc.71067

Ying Wang, Li Zhang, Zixin Wang, Huan Li, Taosen Li, Shuaiwei Liu, Wutao Mao, Junli Pan, Shenghua Zhou, Keyan Bao

{"title":"TNO Heterostructure as Multifunctional Regulating Interfacial Layers for Stable Zinc-Ion Batteries","authors":"Ying Wang, Li Zhang, Zixin Wang, Huan Li, Taosen Li, Shuaiwei Liu, Wutao Mao, Junli Pan, Shenghua Zhou, Keyan Bao","doi":"10.1002/cssc.71067","DOIUrl":"10.1002/cssc.71067","url":null,"abstract":"Aqueous zinc-ion batteries (ZIBs) are promising candidates for large-scale energy storage. However, their practical application is severely hindered by Zn anode instability caused by water-induced side reactions and dendritic growth. Herein, a multifunctional TiN─TiO2 (TNO) heterostructure is constructed on the Zn anode, effectively suppressing parasitic side reactions and regulating Zn deposition behavior to achieve dendrite-free anodes. Combined experimental characterizations and density functional theory (DFT) calculations reveal that the TNO layer modulates the local coordination environment of hydrated Zn2+ at the electrode–electrolyte interface, accelerating interfacial desolvation kinetics and inhibiting the hydrogen evolution reaction. Simultaneously, its strong chemical affinity toward the Zn (002) plane guides horizontal, dense, and highly textured Zn deposition. As a result, the TNO-coated Zn anode (TNO@Zn) exhibits outstanding electrochemical stability, enabling stable cycling for over 3000 h at 1 mA cm−2 and 1.0 mAh cm−2. Moreover, TNO@Zn//NH4V4O10 cell retains a high specific capacity of 152 mAh g−1 after 4000 cycles. The work provides mechanistic insights into interfacial heterostructure engineering and presents a viable strategy for the development of durable aqueous Zn metal batteries.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":"19 18","pages":""},"PeriodicalIF":5.9,"publicationDate":"2026-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148987348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Continuous-Flow Conversion of Waste Polystyrene Into Styrene Monomers Utilizing the Microwave-Concentration Effect on Spherical Activated Carbon 利用球形活性炭的微波浓缩效应，废聚苯乙烯连续流转化为苯乙烯单体。

IF 5.9 2区化学

ChemSusChem Pub Date : 2026-09-17 DOI: 10.1002/cssc.71054

Naoya Sakurada, Takanori Kitazono, Madoka Ikawa, Naoki Doi, Takashi Ikawa, Hironao Sajiki

{"title":"Continuous-Flow Conversion of Waste Polystyrene Into Styrene Monomers Utilizing the Microwave-Concentration Effect on Spherical Activated Carbon","authors":"Naoya Sakurada, Takanori Kitazono, Madoka Ikawa, Naoki Doi, Takashi Ikawa, Hironao Sajiki","doi":"10.1002/cssc.71054","DOIUrl":"10.1002/cssc.71054","url":null,"abstract":"Chemical recycling of polystyrene (PS) by high-temperature pyrolysis can recover styrene monomer, but conventional processes require substantial energy input and generate complex, nonrecyclable byproducts. Here, we report an additive-free continuous-flow depolymerization of PS using localized microwave (MW) heating. A toluene solution of PS was passed through a quartz cartridge packed with spherical activated carbon beads (CBs), which concentrate MW energy and create a confined high-temperature reaction zone. Using a temperature-controlled single-mode MW reactor, the effects of backpressure and feed delivery were examined with reagent-grade PS and postconsumer PS products, including takeout trays and containers. Backpressure was found to be essential for stable styrene production. Without backpressure, channel occlusion occurred and the styrene yield reached only 19% after 4 h, whereas 0.5 MPa backpressure enabled 70%–76% styrene yield after 24 h. Postconsumer PS feeds also afforded 67%–76% styrene yield, comparable to reagent-grade PS. The coproducts were mainly limited to dimers and trimers, supporting distillative styrene recovery. This cartridge-based MW-flow system provides a simple route for direct styrene recovery from diverse PS waste streams under low-power, localized heating conditions.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":"19 18","pages":""},"PeriodicalIF":5.9,"publicationDate":"2026-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cssc.71054","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148987251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0