IF 6.6 2区化学

ChemSusChem Pub Date : 2026-04-28 DOI: 10.1002/cssc.202502705

Cecilia Irene Gho, Katarzyna Bejtka, Marco Fontana, Federica Zammillo, Hilmar Guzmán, Micaela Castellino, Alberto Lopera, Mariajosé López-Tendero, Roger Miró, Miriam Diaz de Los Bernardos, Simelys Hernández, Angelica Chiodoni

{"title":"Operando Transmission Electron Microscopy Insights Into the Evolution of Cu2O-SnO2-Based Catalysts During CO2RR.","authors":"Cecilia Irene Gho, Katarzyna Bejtka, Marco Fontana, Federica Zammillo, Hilmar Guzmán, Micaela Castellino, Alberto Lopera, Mariajosé López-Tendero, Roger Miró, Miriam Diaz de Los Bernardos, Simelys Hernández, Angelica Chiodoni","doi":"10.1002/cssc.202502705","DOIUrl":"https://doi.org/10.1002/cssc.202502705","url":null,"abstract":"The electrochemical reduction of CO2 into valuable products is a promising strategy for mitigating atmospheric CO2 emissions, particularly coupled with solar energy. Among the possible products, CO is currently most attractive, both because it can combine with hydrogen to produce syngas, and because CO is a key reactant in the chemical industry. Copper-based electrocatalysts are extensively investigated for CO2 reduction; however, their morphological and chemical evolution under operating conditions still needs to be clarified, to understand the relationship between morphology, structure, and catalytic activity. This paper discusses a Cu2O-SnO2 based-catalyst, designed to enhance CO selectivity, and studies its evolution under reaction conditions by operando electrochemical liquid-phase transmission electron microscopy (EC-LPTEM). First, the morphology and composition of the as-prepared catalyst is characterized. Then, operando EC-LPTEM is discussed and compared to the post mortem catalyst characterization, together with electrochemical behavior evaluated in the lab-scale device. Different experimental conditions were studied to provide insights on how the catalyst modifies during the electrochemical activity. This characterization contributes to a better understanding of the possible mechanisms involved in the CO2 reduction, and of the factors influencing the catalyst stability and selectivity, supporting the development of improved catalysts for CO2 to syngas conversion.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":"19 8","pages":"e202502705"},"PeriodicalIF":6.6,"publicationDate":"2026-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13102550/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147758187","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

CO₂ Hydrogenation to Methanol on Core-Shell-Structured SiO₂-Encapsulated Cu-ZnO-In₂O₃ Nanoparticles. 核壳结构sio2包封Cu-ZnO-In2O3纳米颗粒上CO2加氢制甲醇研究

IF 6.6 2区化学

ChemSusChem Pub Date : 2026-04-28 DOI: 10.1002/cssc.70634

Min Jung Park, Hwi Yeon Woo, Jae Hyeon Kwon, Yuna Song, Seong Jun Lee, Byoung-Whan Soh, Minkyu Kim, Jong Wook Bae

{"title":"CO2 Hydrogenation to Methanol on Core-Shell-Structured SiO2-Encapsulated Cu-ZnO-In2O3 Nanoparticles.","authors":"Min Jung Park, Hwi Yeon Woo, Jae Hyeon Kwon, Yuna Song, Seong Jun Lee, Byoung-Whan Soh, Minkyu Kim, Jong Wook Bae","doi":"10.1002/cssc.70634","DOIUrl":"https://doi.org/10.1002/cssc.70634","url":null,"abstract":"Since Cu-ZnO-based catalysts for CO2 hydrogenation to methanol are generally suffered from thermal aggregations of Cu nanoparticles under an excess water environment, SiO2-encapsulated Cu-ZnO-based nanoparticles with multicore-shell structures were applied in this study. The synergistic effects of In2O3 on the Cu-ZnO surfaces and protective SiO2 overlayers were verified to explain the positive contributions of In2O3 with decreased CO selectivity and an increased methanol selectivity above 80%, which were attributed to the prohibited competitive reverse water-gas shift reaction activity and less aggregation nature of active metal (oxides) by SiO2 shells. The increased oxygen vacant sites from partially reduced In2O3, ZnO and Cun+ phases and larger surface area of metallic Cu0 surfaces on the Cu-ZnO-In2O3@SiO2 were responsible for an enhanced CO2 conversion (25.3%) and methanol selectivity (80.1%) by easily activating CO2 dissociation and suppressing RWGS reaction. To verify overall reaction mechanisms on the In2O3 metal oxide-substituted Cu nanoparticles, Gibbs free energy diagrams for formyl, formate, and carboxyl intermediates pathways were compared by Density functional theory calculations, which revealed that the most favorable pathway for CO2 hydrogenation to CH3OH was CHO2H* intermediate-based formyl pathway on In2O3-substituted Cu(111) surfaces by decreasing CO selectivity due to the suppressed RWGS reaction activity.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":"19 8","pages":"e70634"},"PeriodicalIF":6.6,"publicationDate":"2026-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147758223","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

Catalytic High-Speed Reactive Extrusion for Polyethylene Mechanochemical Upcycling. 催化高速反应挤出用于聚乙烯机械化学升级回收。

IF 6.6 2区化学

ChemSusChem Pub Date : 2026-04-28 DOI: 10.1002/cssc.70622

Mansoureh Jamalzadeh, Patrick Masembe, Hrushikesh Pujari, Luca Keller, Miguel Gonzalez Borja, Masud M Monwar, Lily Cui, Basseem Hallac, Daniel Schwendemann, Margaret J Sobkowicz

{"title":"Catalytic High-Speed Reactive Extrusion for Polyethylene Mechanochemical Upcycling.","authors":"Mansoureh Jamalzadeh, Patrick Masembe, Hrushikesh Pujari, Luca Keller, Miguel Gonzalez Borja, Masud M Monwar, Lily Cui, Basseem Hallac, Daniel Schwendemann, Margaret J Sobkowicz","doi":"10.1002/cssc.70622","DOIUrl":"https://doi.org/10.1002/cssc.70622","url":null,"abstract":"This study explores a mechanochemical strategy for polyethylene (PE) recycling using ultrahigh-speed twin screw extrusion (TSE), focusing on the synergistic effects of high shear rates and catalyst incorporation to induce structural transformations. By systematically controlling specific mechanical energy (SME), a scalable equipment-independent parameter, the transformation was investigated across two PE structural variations (linear and branched) and linear PE with and without additives. Structural, molecular, and rheological changes were characterized using Fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), and parallel plate rheology. Catalyst incorporation achieved intimate dispersion and enhanced chain scission, producing low molecular weight liquid and gaseous byproducts collected from the devolatilization zone. Thermogravimetric analysis (TGA) revealed substantial reductions in PE decomposition temperature following catalyst incorporation, attributed to still-active catalyst sites and the formation of labile functional groups such as ethers and esters. These findings establish TSE as a process intensification approach for controlling PE depolymerization with potential as a preconditioning strategy for downstream chemical recycling. By investing mechanical energy upstream to improve polymer catalyst contact and reduce activation barriers, this approach offers a pathway to lower the thermal energy requirements of chemical recycling, contributing to more economically viable and environmentally sustainable polyolefin waste management at industrial scales.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":"19 8","pages":"e70622"},"PeriodicalIF":6.6,"publicationDate":"2026-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13110911/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147758247","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

Mechanochemical Tandem Reactions: A Sustainable and Direct Route to 1,2-Di-Functional Indolizines via In Situ Baylis-Hillman Reaction, Cyclocondensation, Electrophilic C-H Chalcogenocyanation. 机械化学串联反应：通过原位Baylis-Hillman反应，环缩合，亲电C-H硫基化，可持续和直接地获得1,2-二官能团吲哚。

IF 6.6 2区化学

ChemSusChem Pub Date : 2026-04-28 DOI: 10.1002/cssc.70642

Soumik Saha, Shravya B, Truptesh T Mulgaonkar, Saurav Bhattacharya, Amrita Chatterjee, Mainak Banerjee

{"title":"Mechanochemical Tandem Reactions: A Sustainable and Direct Route to 1,2-Di-Functional Indolizines via In Situ Baylis-Hillman Reaction, Cyclocondensation, Electrophilic C-H Chalcogenocyanation.","authors":"Soumik Saha, Shravya B, Truptesh T Mulgaonkar, Saurav Bhattacharya, Amrita Chatterjee, Mainak Banerjee","doi":"10.1002/cssc.70642","DOIUrl":"https://doi.org/10.1002/cssc.70642","url":null,"abstract":"Herein, we report a sustainable, metal-free tandem mechanochemical strategy for the construction and C-H chalcogenocyanation of indolizines from pyridine-2-carboxaldehydes and α,β-unsaturated compounds. The method involves DABCO-catalyzed in situ formation of the Baylis-Hillman adduct followed by cyclization, delivering 2-functionalized indolizines within 30 min under solid-phase mixer-milling conditions, with yields of up to 81%. Several of these products were further subjected to mechanochemical thio- and seleno-cyanation. Notably, a combination of commercially available NaSCN/KSeCN and NCS first generates electrophilic chalcogenocyanating agents that afford the unprecedented 1-chalcogenocyanated-2-formyl-indolizine scaffold in just 15 min with up to 94% yields, in a work-up-free process. Interestingly, silica-assisted solid-phase mechanochemistry enables tandem conversion of the starting pyridine-2-carboxaldehydes and enones directly into 1,2-difunctionalized indolizines, with practically no drop in overall yields (best yield 75%). Furthermore, the dual-functional handles allow diverse post-functionalizations, including the conversion of -SCN to -SCF3 and sulfenyl tetrazoles, and -CHO to indolizino-benzazoles, all via mixer-milling. The scalability of the tandem mechanosynthesis of 1,2-difunctionalized indolizines was established using selected examples. The time-efficient and step-economic solid-phase tandem mechanochemical method exhibits strong sustainability metrics, including low process mass intensity (PMI 9.1 g g-1), low E-factors (4.1), good atom economy (65% AE), and a high EcoScale score (∼70).","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":"19 8","pages":"e70642"},"PeriodicalIF":6.6,"publicationDate":"2026-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147758055","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

Selective Reductive Depolymerization of Lignin to Vanillin over a Ni-NiO-MnO_x/Graphene Oxide Heterojunction Catalyst. Ni-NiO-MnOx/氧化石墨烯异质结催化剂上木质素选择性还原解聚制香兰素。

IF 6.6 2区化学

ChemSusChem Pub Date : 2026-04-28 DOI: 10.1002/cssc.70646

Padariya Mrugesh, Jyotiranjan Mishra, Palani S Subramanian, Sanjay Pratihar

{"title":"Selective Reductive Depolymerization of Lignin to Vanillin over a Ni-NiO-MnOx/Graphene Oxide Heterojunction Catalyst.","authors":"Padariya Mrugesh, Jyotiranjan Mishra, Palani S Subramanian, Sanjay Pratihar","doi":"10.1002/cssc.70646","DOIUrl":"https://doi.org/10.1002/cssc.70646","url":null,"abstract":"Lignin is a renewable aromatic feedstock, but while oxidative depolymerization is well studied, selective reductive strategies remain underexplored due to carbonyl overhydrogenation, necessitating sustainable approaches for efficient valorization. Herein, we report a graphene oxide-supported Ni-Mn heterojunction catalyst for the selective reductive depolymerization of lignin. The catalyst exhibits broad applicability across four different lignin, including dealkaline lignin and sodium lignosulfonate (commercial lignins), as well as lignin isolated from locally available biomass sources such as Prosopis juliflora and Ficus benghalensis. Under mild hydrogenolysis conditions (30 bar H2, 180°C), the catalyst affords a vanillin yield of 18.4 wt% (11.4 wt% isolated, >97% purity) with 84% selectivity. Solvent optimization enhanced dealkaline lignin solubility and improved depolymerization efficiency. The unique performance arises from synergistic charge redistribution at Ni-NiO-MnOx heterojunction interfaces, which promote selective CO and CC bond cleavage while fully suppressing vanillin overhydrogenation. Two-dimensional 13C-1H HSQC (Heteronuclear Single Quantum Coherence) NMR and control experiments confirmed efficient cleavage of β-O-4, β-5 and β - β linkages, particularly in guaiacyl (G) and syringyl (S) units, leading to enriched aromatic monomer production.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":"19 8","pages":"e70646"},"PeriodicalIF":6.6,"publicationDate":"2026-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147758168","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

Transparent Conductive Oxide Electrodes in Perovskite Solar Cells: Challenges, Strategies, and Outlook. 钙钛矿太阳能电池中的透明导电氧化物电极：挑战、策略与展望。

IF 6.6 2区化学

ChemSusChem Pub Date : 2026-04-28 DOI: 10.1002/cssc.202502745

Chengcheng Sang, Chengxu Yang, Jiakuo Yang, Fang Yue, Zhongmin Zhou

{"title":"Transparent Conductive Oxide Electrodes in Perovskite Solar Cells: Challenges, Strategies, and Outlook.","authors":"Chengcheng Sang, Chengxu Yang, Jiakuo Yang, Fang Yue, Zhongmin Zhou","doi":"10.1002/cssc.202502745","DOIUrl":"https://doi.org/10.1002/cssc.202502745","url":null,"abstract":"In perovskite solar cells (PSCs), transparent conductive oxide (TCO) electrodes, such as fluorine-doped tin oxide (FTO) and indium tin oxide (ITO), serve as critical components for optical windows, charge collection, and transport. The intrinsic properties of TCOs and their interfacial compatibility with adjacent functional layers significantly affect the device efficiency and stability. This review systematically summarizes the prevalent challenges associated with TCO electrodes, including inadequate light transmittance and electrical conductivity, limited interfacial compatibility, and inherent brittleness. The underlying mechanisms affecting device performance and corresponding engineering strategies are elaborated. Light transmittance and electrical conductivity are enhanced via elemental doping, process optimization, surface texturing, and antireflective coatings. Interfacial compatibility is improved through optimizing deposition techniques, interface engineering, and intrinsic property tailoring of TCOs. The mechanical reliability of TCO-based flexible devices is reinforced by constructing flexible composite structures and stress compensation interfaces. Finally, this review provides insights for further investigation and development of TCO electrodes in PSCs, aiming to advance the commercialization of PSCs.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":"19 8","pages":"e202502745"},"PeriodicalIF":6.6,"publicationDate":"2026-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147758171","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

Pulsed Laser Deposition of Nanoporous Silicon Electrodes for Solid-State Lithium-Ion Cells. 固体锂离子电池纳米多孔硅电极的脉冲激光沉积。

IF 6.6 2区化学

ChemSusChem Pub Date : 2026-04-28 DOI: 10.1002/cssc.202502668

Andrea Macrelli, Graziano Di Donato, Shuang Li, Amogne Workie Yibeltal, Jianneng Liang, Maider Zarrabeitia, Alberto Varzi, Andrea Li Bassi

{"title":"Pulsed Laser Deposition of Nanoporous Silicon Electrodes for Solid-State Lithium-Ion Cells.","authors":"Andrea Macrelli, Graziano Di Donato, Shuang Li, Amogne Workie Yibeltal, Jianneng Liang, Maider Zarrabeitia, Alberto Varzi, Andrea Li Bassi","doi":"10.1002/cssc.202502668","DOIUrl":"https://doi.org/10.1002/cssc.202502668","url":null,"abstract":"Owing to the huge theoretical specific capacity, nanostructured silicon is a promising anode material for all-solid-state lithium-ion batteries. However, the massive volume expansion associated with the formation of Li-rich alloys results in severe degradation and rapid failure. This study explores pulsed laser deposition (PLD) as a versatile technique for synthesizing nanostructured porous silicon thin films with tailored morphology and nanocrystallinity, intended for electrochemical testing in cells with Li6PS5Cl solid electrolyte. By systematically varying the deposition parameters, such as laser fluence, gas composition and pressure, substrate, and time, the transition from compact-amorphous to nanoporous-nanocrystalline silicon is achieved. Electrochemical testing reveals a strong correlation between nanoporosity and performance: the nanoporous film grown at 100 Pa of Ar + H2 delivers a first-lithiation capacity of 3388 mAh g-1 (94.7% of theoretical capacity), with stable cycling over 30 cycles, outperforming denser films. Post-mortem microscopy, Raman, and X-ray photoelectron spectroscopy analyses clarify lithiation-induced phase transitions and degradation pathways. Despite some still open challenges (such as low mass loading and poor initial Coulombic efficiency), this work demonstrates, for the first time, the rational application of PLD for silicon electrodes in solid-state lithium-ion cells, paving the way for further optimization and full-cell integration.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":"19 8","pages":"e202502668"},"PeriodicalIF":6.6,"publicationDate":"2026-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147758209","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

Polyelectrolyte Complex Coating for Mitigating Decomposition at Argyrodite and Conductive Carbon Interfaces in Solid-State Batteries. 缓解固态电池银柱石和导电碳界面分解的聚电解质复合涂层。

IF 6.6 2区化学

ChemSusChem Pub Date : 2026-04-28 DOI: 10.1002/cssc.202502431

Sudeshna Sen, Bing-Xuan Shi, Nina Herrmann, Felix Schnaubelt, Felix Walther, Joachim Sann, Felix H Richter

{"title":"Polyelectrolyte Complex Coating for Mitigating Decomposition at Argyrodite and Conductive Carbon Interfaces in Solid-State Batteries.","authors":"Sudeshna Sen, Bing-Xuan Shi, Nina Herrmann, Felix Schnaubelt, Felix Walther, Joachim Sann, Felix H Richter","doi":"10.1002/cssc.202502431","DOIUrl":"10.1002/cssc.202502431","url":null,"abstract":"Sulfide-based solid electrolyte batteries (SEBs), which are an important type of solid-state battery, show strong potential for commercializing solid-state battery technology in large scale with high energy density. For delivering high capacity, maximum utilization of cathode active materials is a prime criterion, which can be attained using carbon additives to ensure electronic connectivity of all cathode particles. Fibrous carbon additives such as vapor-grown carbon fibers (VGCFs) are often preferred in SEBs. However, degradation of sulfide-based solid electrolytes such as Li6PS5Cl (LPSCl) at the interfaces with cathode active material and VGCF lowers cell capacity. Coating of carbon surfaces is a viable method to mitigate electrolyte decomposition. Here, we report a new polyelectrolyte-based coating on VGCFs as protective interlayer for LiIn|LPSCl|LPSCl-NCM-VGCF (LiInSEBNCM) cells. We use cyclic voltammetry to evaluate oxidation of electrolyte at the VGCF interface along with galvanostatic charge-discharge cycling. The polymer coating decreases argyrodite oxidation at the VGCF|LPSCl interface and improves cycling capacity. An interplay between coating thickness and aggregation of VGCF fibers is observed, which leads to an optimum of polymer coating layers to maximize cycling performance.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":"19 8","pages":"e202502431"},"PeriodicalIF":6.6,"publicationDate":"2026-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13091074/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147721073","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

Comparative Evaluation of Additives in Softwood Fractionation: Impacts on Lignin Recovery and Pulp Quality. 针叶木材分馏中添加剂的比较评价：对木质素回收率和纸浆质量的影响。

IF 6.6 2区化学

ChemSusChem Pub Date : 2026-04-28 DOI: 10.1002/cssc.70640

Juho Antti Sirviö, Ekaterina Sheridan, Donya Arjmandi, Jasmiina Haverinen, Dmitry Tarasov, Chunlin Xu, Ari Ämmälä, Jarkko Räty

{"title":"Comparative Evaluation of Additives in Softwood Fractionation: Impacts on Lignin Recovery and Pulp Quality.","authors":"Juho Antti Sirviö, Ekaterina Sheridan, Donya Arjmandi, Jasmiina Haverinen, Dmitry Tarasov, Chunlin Xu, Ari Ämmälä, Jarkko Räty","doi":"10.1002/cssc.70640","DOIUrl":"10.1002/cssc.70640","url":null,"abstract":"Lignocellulosic biomass fractionation with concurrent lignin stabilization via chemical modification has been shown to enhance delignification efficiency and enable the recovery of lignin with a low degree of condensation, thereby increasing the application potential of both carbohydrate and lignin fractions. In this study, five different chemicals-ethylene glycol (EG), glyoxylic acid (GlyoxA), phenol (Phen), thiourea (ThioU), and thiolactic acid (TLA)-were evaluated for their ability to modify lignin during acid hydrotropic fractionation (AHF) of softwood in aqueous p-toluenesulfonic acid. Their effects were compared to AHF without additives. Among the tested modifiers, Phen achieved the highest lignin removal. However, TLA led to the highest recovery lignin yield, the lightest-colored fractions, and pulp sheets with superior tensile properties, highlighting the strong potential of thiol-based nucleophiles in wood delignification. ThioU, another sulfur-based nucleophile, also produced lightly colored fractions, but lignin redeposition on fibers negatively impacted pulp mechanical properties. GlyoxA moderately improved lignin removal and yield, while EG had negligible effect compared to plain AHF. Notably, well-defined, spherical lignin nanoparticles were obtained from TLA- and ThioU-modified lignins, although ThioU-lignin also formed film-like structures due to nonprecipitated lignin. Other lignin samples yielded irregularly shaped nanoparticles.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":"19 8","pages":"e70640"},"PeriodicalIF":6.6,"publicationDate":"2026-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13091184/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147721130","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

Electrolyte and Electrode Design for Aqueous Potassium-Ion Batteries. 钾离子电池的电解液和电极设计。

IF 6.6 2区化学

ChemSusChem Pub Date : 2026-04-28 DOI: 10.1002/cssc.70650

Xiaogang Niu, Linlin Wang, Yifan Chen, Hongliang Li, Guangqiang Hou, Jiapeng Lu, Yue Bai, Shiwan Zhang, Yuxuan Xing, Stanislav S Fedotov, Dmitry A Aksyonov, Yujie Zhu

{"title":"Electrolyte and Electrode Design for Aqueous Potassium-Ion Batteries.","authors":"Xiaogang Niu, Linlin Wang, Yifan Chen, Hongliang Li, Guangqiang Hou, Jiapeng Lu, Yue Bai, Shiwan Zhang, Yuxuan Xing, Stanislav S Fedotov, Dmitry A Aksyonov, Yujie Zhu","doi":"10.1002/cssc.70650","DOIUrl":"10.1002/cssc.70650","url":null,"abstract":"Aqueous potassium-ion batteries have emerged as a promising energy storage technology by combining the intrinsic safety of aqueous electrolytes with the high natural abundance of potassium. However, the narrow electrochemical stability window of water and the limited availability of suitable cathode and anode materials impose critical challenges on achieving high energy density and long-term cycling stability. In recent years, substantial progress has been achieved through electrolyte engineering strategies, which effectively suppress water activity, expand the operational voltage window, and stabilize electrode-electrolyte interfaces. On the cathode side, advances in materials such as Prussian blue analogs, transition-metal oxides, and polyanionic compounds have significantly improved structural robustness and K diffusion kinetics. On the anode side, increasing attention has been devoted to interfacial regulation, kinetic compatibility, and mechanical stability under aqueous conditions. Importantly, emerging insights into electrolyte-material interactions reveal that interfacial chemistry plays a decisive role in governing the reversibility and durability of aqueous potassium-ion batteries. This review systematically summarizes recent progress in electrolytes, cathode materials, and anode materials for aqueous potassium-ion batteries. It highlights the remaining challenges and future perspectives toward high-energy-density, durable, and practically viable aqueous potassium-ion batteries.","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":"19 8","pages":"e70650"},"PeriodicalIF":6.6,"publicationDate":"2026-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147727711","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

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