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Sorbic Acid-Modified Soybean Oil: A Promising Biobased Molecular Platform for Sustainable Thermosetting Resins. 山梨酸改性大豆油:一种有前途的可持续热固性树脂生物基分子平台。
IF 6.6 2区 化学
ChemSusChem Pub Date : 2025-09-30 DOI: 10.1002/cssc.202501346
Selena Silvano, Adriano Vignali, Laura Boggioni, Fabio Bertini
{"title":"Sorbic Acid-Modified Soybean Oil: A Promising Biobased Molecular Platform for Sustainable Thermosetting Resins.","authors":"Selena Silvano, Adriano Vignali, Laura Boggioni, Fabio Bertini","doi":"10.1002/cssc.202501346","DOIUrl":"https://doi.org/10.1002/cssc.202501346","url":null,"abstract":"<p><p>In this article, the synthesis of a fully biobased molecular platform for thermosetting resins, namely sorbated epoxidized soybean oil (SESO), starting from sorbic acid (SA), and epoxidized soybean oil (ESO), is reported. The chemical structure of SESO is deeply characterized by spectroscopic and molecular analysis. The isothermal thermogravimetric analysis indicated that SA exhibited extremely lower volatility than acrylic acid (AA), which suggests that SA could be used as a green and safe alternative to AA overcoming issues related to AA volatility and toxicity that can be experienced during AA manipulation. Several SESO-based thermosetting resins are obtained after the curing process performed by thermal treatment in the presence of a radical initiator. SESO shows complete curing after 6 h, faster than acrylated ESO (AESO), along with a good copolymerization ability with several reactive comonomers, such as styrene, myrcene, and pentaerythritol tetraacrylate, producing resins with similar mechanical (Young's modulus ranging from 6 to 1160 MPa) and thermal (glass transition temperature ranging from 17 to 61 °C) properties and superior biobased content to those AESO-based. The successful synthesis of SESO offers the opportunity to use SA as an environmentally friendly alternative to AA in the synthesis of green thermosets.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202501346"},"PeriodicalIF":6.6,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145197552","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
Amorphous Zr-OMS-2 Catalyst with Synergistic Lewis Acidity-Redox Sites for Efficient Ammoxidation of Benzyl Alcohol to Benzonitrile. 具有协同路易斯酸-氧化还原位点的无定形Zr-OMS-2催化剂用于苯甲醇氨氧化制苯腈。
IF 6.6 2区 化学
ChemSusChem Pub Date : 2025-09-29 DOI: 10.1002/cssc.202501355
Yu Zhang, Weitao Wang, Huan Wang, Jiaqi Zhu, Yuxin Chai, Zhen-Hong He, Yang Yang, Kuan Wang, Zhao-Tie Liu
{"title":"Amorphous Zr-OMS-2 Catalyst with Synergistic Lewis Acidity-Redox Sites for Efficient Ammoxidation of Benzyl Alcohol to Benzonitrile.","authors":"Yu Zhang, Weitao Wang, Huan Wang, Jiaqi Zhu, Yuxin Chai, Zhen-Hong He, Yang Yang, Kuan Wang, Zhao-Tie Liu","doi":"10.1002/cssc.202501355","DOIUrl":"https://doi.org/10.1002/cssc.202501355","url":null,"abstract":"<p><p>The direct ammoxidation of alcohols represents a crucial synthetic pathway for nitrile production. However, achieving high nitrile selectivity while suppressing over-reaction to amides remains a significant challenge. In the present work, a Zr-doped OMS-2 catalyst that demonstrated remarkable efficiency for the selective ammoxidation of benzyl alcohol to benzonitrile is developed. Under optimized conditions, an impressive yield of 84.9% and selectivity of 89.9% are achieved, using aqueous ammonia as the nitrogen source and molecular oxygen as the oxidant. Solvent effect studies reveal that the adsorption of benzyl alcohol and benzonitrile significantly influences the activity and selectivity of the reaction. Kinetic investigations reveal that the reaction proceeded through a three-step consecutive first-order mechanism, with the high nitrile selectivity being kinetically controlled. Comprehensive characterization demonstrates that the incorporation of Zr<sup>4+</sup> enhances the Lewis acidity of OMS-2, increases the population of active oxygen species, and effectively lowers the activation energy barrier. Controlled experiments elucidate the reaction mechanism in detail. The catalyst exhibits excellent stability and broad substrate generality, selectively converting a wide range of aromatic alcohols to their corresponding nitriles with high yields. This work provides a robust and practical alternative to conventional cyanide-based nitrile synthesis methodologies.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202501355"},"PeriodicalIF":6.6,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145184343","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
Lead-Free Cs3Bi2Br9 Perovskite as Heterogeneous Photocatalyst for Oxidative Dehydrogenative Coupling of Thiols and P(O)H Compounds. 无铅Cs3Bi2Br9钙钛矿作为硫醇和P(O)H化合物氧化脱氢偶联的非均相光催化剂
IF 6.6 2区 化学
ChemSusChem Pub Date : 2025-09-27 DOI: 10.1002/cssc.202501607
Tong Yue, Shuai-Zheng Zhang, Ming-Ming Li, Zhan-Hui Zhang
{"title":"Lead-Free Cs<sub>3</sub>Bi<sub>2</sub>Br<sub>9</sub> Perovskite as Heterogeneous Photocatalyst for Oxidative Dehydrogenative Coupling of Thiols and P(O)H Compounds.","authors":"Tong Yue, Shuai-Zheng Zhang, Ming-Ming Li, Zhan-Hui Zhang","doi":"10.1002/cssc.202501607","DOIUrl":"https://doi.org/10.1002/cssc.202501607","url":null,"abstract":"<p><p>An efficient and straightforward synthetic strategy has been established for the synthesis of biologically relevant thiophosphates. This method relies on visible light-induced oxidative dehydrogenative coupling between thiols and P(O)H compounds, utilizing lead-free Cs<sub>3</sub>Bi<sub>2</sub>Br<sub>9</sub> perovskite as a heterogeneous photocatalyst with air serving as the oxidant. The reaction proceeds efficiently in 2-methyl tetrahydrofuran (2-MeTHF) under ambient temperature conditions, exhibits good tolerance towards a wide range of functional groups, and affords the target products in high yields. Furthermore, the photocatalyst can be readily recycled for at least 5 runs in gram-scale synthesis without a significant loss of catalytic activity.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e70126"},"PeriodicalIF":6.6,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145172209","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-Water Dynamics in Prussian Blue Analogues Cathodes. 普鲁士蓝类似物阴极的阳离子-水动力学。
IF 6.6 2区 化学
ChemSusChem Pub Date : 2025-09-26 DOI: 10.1002/cssc.202500901
Keren Shwartsman, Gil Bergman, Netta Bruchiel-Spanier, Stav Rahmany, Langyuan Wu, Yong Zhang, Munseok S Chae, Daniel Sharon, Netanel Shpigel
{"title":"Cation-Water Dynamics in Prussian Blue Analogues Cathodes.","authors":"Keren Shwartsman, Gil Bergman, Netta Bruchiel-Spanier, Stav Rahmany, Langyuan Wu, Yong Zhang, Munseok S Chae, Daniel Sharon, Netanel Shpigel","doi":"10.1002/cssc.202500901","DOIUrl":"https://doi.org/10.1002/cssc.202500901","url":null,"abstract":"<p><p>Prussian blue analogues (PBA) cathodes are emerging as promising electrode materials for post-Li batteries due to their open framework, high theoretical capacity, and fast ion diffusion channels. Their large interstitial sites facilitate the reversible intercalation of both small and bulky cations, enabling efficient charge storage. These interstitial spaces, however, can also accommodate water molecules, which significantly influence the charging mechanism and, consequently, the electrochemical performance of PBA. Since water is nonelectroactive at the working potential of PBA cathodes, monitoring the dynamics of H<sub>2</sub>O during charging is a challenging task. As a result, a comprehensive understanding of its contribution to the electrochemical behavior of PBA is still lacking. To address this issue, electrochemical quartz crystal microbalance with dissipation monitoring is employed to investigate NiPBA electrodes during the insertion/extraction of Na<sup>+</sup>, K<sup>+</sup>, and Cs<sup>+</sup>. This study is further supported by systematic electrochemical analysis in practical battery configurations and advanced X-ray diffraction measurements, providing deeper insights into the cation-water dynamics in PBA electrodes.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202500901"},"PeriodicalIF":6.6,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145147071","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
Engineered CuO@TiO2 Core-Shell on rGO as Anode for High-Performance Lithium- and Sodium-Ion Batteries. 工程CuO@TiO2核壳上的氧化石墨烯作为阳极的高性能锂和钠离子电池。
IF 6.6 2区 化学
ChemSusChem Pub Date : 2025-09-26 DOI: 10.1002/cssc.202501220
Abhimanyu Kumar Prajapati, Ram K Gupta, Ashish Bhatnagar
{"title":"Engineered CuO@TiO<sub>2</sub> Core-Shell on rGO as Anode for High-Performance Lithium- and Sodium-Ion Batteries.","authors":"Abhimanyu Kumar Prajapati, Ram K Gupta, Ashish Bhatnagar","doi":"10.1002/cssc.202501220","DOIUrl":"https://doi.org/10.1002/cssc.202501220","url":null,"abstract":"<p><p>In the present investigation heterostructure CuO@TiO<sub>2</sub> and its hybrid engineered system created by an addition of reduced graphene oxide (rGO) that is, CuO@TiO<sub>2</sub>/rGO have been examined as anode in Li/Na-ion battery application. The electrochemical performance of as-fabricated mesoporous CuO@TiO<sub>2</sub>/rGO, CuO@TiO<sub>2</sub>, pristine CuO, and pristine TiO<sub>2</sub> have been explored as anode for Li/Na-ion batteries. After 200 cycles, the discharging capacities of CuO@TiO<sub>2</sub>/rGO anode is found to be 653 mAhg<sup>-1</sup> while CuO@TiO<sub>2</sub>, pristine CuO and pristine TiO<sub>2</sub> have shown a lithium storage capacity of 343, 184, and 99 mAhg<sup>-1</sup> respectively at high current density (200 mAg<sup>-1</sup>). On the other side, as-fabricated mesoporous CuO@TiO<sub>2</sub>/rGO and CuO@TiO<sub>2</sub> have been also checked as anode in sodium ion batteries. After 100 cycles, CuO@TiO<sub>2</sub>/rGO and CuO@TiO<sub>2</sub> have shown a sodium storage capacity of 240 and 144 mAhg<sup>-1</sup> respectively at 200 mAg<sup>-1</sup> which clearly shows that out of the studies materials, CuO@TiO<sub>2</sub>/rGO is optimum in terms of electrochemical performance in both storage system. The tentative mechanism for the enhanced electrochemical behavior CuO@TiO<sub>2</sub>/rGO has been discussed and described based upon X-ray diffraction, electron microscopy and X-ray photoelectron spectroscopy (XPS). To our best understanding, this is the first report of engineered CuO@TiO<sub>2</sub>/rGO anode with high Li/Na-ion storage capacity.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202501220"},"PeriodicalIF":6.6,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145147127","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
Phytic Acid-Based Deep Eutectic Solvents for Metal Extraction from Lithium Cobalt Oxide and Nickel Manganese Cobalt and the Use of the Resulting Leachates as Electrolytes for 2.0 V Supercapacitors. 植酸基深共晶溶剂萃取钴酸锂和镍锰钴金属及其浸出液作为2.0 V超级电容器电解液的研究
IF 6.6 2区 化学
ChemSusChem Pub Date : 2025-09-26 DOI: 10.1002/cssc.202501306
Boren Xu, M Luisa Ferrer, Francisco Del Monte, María C Gutiérrez
{"title":"Phytic Acid-Based Deep Eutectic Solvents for Metal Extraction from Lithium Cobalt Oxide and Nickel Manganese Cobalt and the Use of the Resulting Leachates as Electrolytes for 2.0 V Supercapacitors.","authors":"Boren Xu, M Luisa Ferrer, Francisco Del Monte, María C Gutiérrez","doi":"10.1002/cssc.202501306","DOIUrl":"https://doi.org/10.1002/cssc.202501306","url":null,"abstract":"<p><p>Li-ion batteries (LIBs) are essential in modern society but raise environmental concerns due to the intensive use of metals in cathodes and the challenges of end-of-life disposal. Besides traditional pyrometallurgical and hydrometallurgical processes used for metal recovery, deep eutectic solvents (DESs) have recently emerged as greener alternatives for leaching metals from spent cathodes of LIBs. A key drawback is, however, the unresolved recovery of the DES, whose cost can represent 30-60% of the leachate, thereby reducing the overall sustainability of the process. Herein, we used the leachates as electrolytes for supercapacitors. DESs based on phytic acid provided leachates with mass loadings of 40 mg of lithium cobalt oxide (LCO) or lithium nickel manganese cobalt oxide (NMC) per gram of DES. The typically poor performance of acidic leachates as electrolytes was addressed through chemical and solvent treatments. Neutralization with tetramethylguanidine expanded the electrochemical window, while dilution with water and/or water-dimethyl sulfoxide mixtures enhanced ionic mobility and rate capability. As a result, the processed leachates delivered energy densities of ≈17.9 Wh kg<sup>-1</sup> at 488.35 W kg<sup>-1</sup> and 5.77 Wh kg<sup>-1</sup> at 4343.72 W kg<sup>-1</sup>, in the range of those provided by much less cost-efficient electrolytes such as 21 m LiTFSI.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202501306"},"PeriodicalIF":6.6,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145172249","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
Nitroxyl Radical-Enhanced Proton-Coupled Electron Transfer for the Selective Oxidation of Biomass-Derived 5-Hydroxymethylfurfural. 硝基自由基增强质子耦合电子转移选择性氧化生物质衍生的5-羟甲基糠醛。
IF 6.6 2区 化学
ChemSusChem Pub Date : 2025-09-26 DOI: 10.1002/cssc.202501492
Wenjing Wang, Ling Zhang, Taikang Jia, Bei Jiang, Mengya Xu, Ruofan Li, Chuanqi Zhang, Wenzhong Wang
{"title":"Nitroxyl Radical-Enhanced Proton-Coupled Electron Transfer for the Selective Oxidation of Biomass-Derived 5-Hydroxymethylfurfural.","authors":"Wenjing Wang, Ling Zhang, Taikang Jia, Bei Jiang, Mengya Xu, Ruofan Li, Chuanqi Zhang, Wenzhong Wang","doi":"10.1002/cssc.202501492","DOIUrl":"https://doi.org/10.1002/cssc.202501492","url":null,"abstract":"<p><p>The selective oxidation of biomass-derived 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA), a key monomer for degradable plastics, is crucial for biomass valorization and addressing plastic pollution. However, its efficiency is limited by high energy barriers and slow kinetics due to the complex multi-electron and multi-proton transfer steps. Herein, a MIL-100(Fe)/TEMPO/nitric acid catalyst system is developed to facilitate electron transfer in HMF oxidation. The catalyst system achieves 100% conversion of 3 wt% HMF in 16 h at 353 K and atmospheric pressure, with a 94% yield of total acid product. The cyclic voltammetry and in situ electron paramagnetic resonance (EPR) reveal that nitric acid promotes TEMPO oxidation to TEMPO<sup>+</sup>, facilitating electron transfer and increasing the oxidation rate. The Griess method, ferrocene cation probe, and in situ EPR confirm nitric oxide (NO) formation, which acts as an electron shuttle between oxygen and MIL-100(Fe), accelerating the Fe(III)/Fe(II) redox cycle. Hydrogen/deuterium kinetic isotope effect analysis supports a proton-coupled electron transfer (PCET) mechanism. This study demonstrates that nitric acid significantly enhances PCET, enabling rapid oxidation of HMF to FDCA under mild conditions.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202501492"},"PeriodicalIF":6.6,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145147063","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
A Methodology for the Analysis of Water Oxidation Electrocatalysts in the Absence of Limiting Current that Avoids the Pitfalls of Existing Methods. 一种在没有限制电流的情况下分析水氧化电催化剂的方法,避免了现有方法的缺陷。
IF 6.6 2区 化学
ChemSusChem Pub Date : 2025-09-26 DOI: 10.1002/cssc.202500778
Colton J Breyer, Diane K Smith, Jing Gu, Douglas B Grotjahn
{"title":"A Methodology for the Analysis of Water Oxidation Electrocatalysts in the Absence of Limiting Current that Avoids the Pitfalls of Existing Methods.","authors":"Colton J Breyer, Diane K Smith, Jing Gu, Douglas B Grotjahn","doi":"10.1002/cssc.202500778","DOIUrl":"https://doi.org/10.1002/cssc.202500778","url":null,"abstract":"<p><p>Water oxidation is an important reaction studied as a way to generate electrons from water, to promote water splitting and the formation of green hydrogen. When using electrodes to drive homogeneous water oxidation catalysis, cyclic voltammograms are analyzed to provide catalytic rate constants. There are two main methods, foot-of-the-wave analysis (FOWA) and limiting current analysis. FOWA relies on approximations inherent to analyzing water oxidation catalysis, such as determining the formal potential of the catalytic intermediate, <math> <semantics> <mrow> <msub><msup><mi>E</mi> <mn>0</mn></msup> <mrow><mi>c</mi> <mi>a</mi> <mi>t</mi></mrow> </msub> </mrow> <annotation>$$ {{E}^{0}}_{cat} $$</annotation></semantics> </math> . Limiting current methods are the optimal way to analyze catalyst performance but rely on observable limiting current, which is virtually never seen in water oxidation. To avoid those issues, a method is proposed for analyzing nonideal cyclic voltammetry waveshapes in water oxidation: by analyzing rate data across a large range of potentials, an optimal potential, <math> <semantics> <mrow> <msub><mrow><mi>E</mi> <mo>'</mo></mrow> <mrow><mi>c</mi> <mi>a</mi> <mi>t</mi></mrow> </msub> </mrow> <annotation>$$ {{E}^{text{&#x00026;amp;amp;amp;amp;amp;aposx;}}}_{cat}$$</annotation></semantics> </math> , can be obtained, where catalytic current, <math> <semantics> <mrow><msub><mi>i</mi> <mrow><mi>c</mi> <mi>a</mi> <mi>t</mi></mrow> </msub> </mrow> <annotation>$i_{c a t}$</annotation></semantics> </math> , is nearly independent of scan rate and has a linear dependency on buffer concentration. The method is applied to four homogeneous water oxidation catalysts with prior extensive electrochemical elucidation, all of which lack an ideal, purely kinetic waveshape in cyclic voltammetry. Application of the method avoids the biases of the other methods cited for the kinetic analyses of water oxidation catalysts.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202500778"},"PeriodicalIF":6.6,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145147108","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
Core and End-Capped Engineering as a Powerful Tool in the Search of Long-Term High-Performance Dye-Sensitized Solar Cells. 核心和端盖工程是寻找长期高性能染料敏化太阳能电池的有力工具。
IF 6.6 2区 化学
ChemSusChem Pub Date : 2025-09-26 DOI: 10.1002/cssc.202501564
Matías J Alonso-Navarro, Santiago Franco, Fátima Suárez-Blas, Raquel Andreu, Jesús Orduna, M Mar Ramos, José L Segura
{"title":"Core and End-Capped Engineering as a Powerful Tool in the Search of Long-Term High-Performance Dye-Sensitized Solar Cells.","authors":"Matías J Alonso-Navarro, Santiago Franco, Fátima Suárez-Blas, Raquel Andreu, Jesús Orduna, M Mar Ramos, José L Segura","doi":"10.1002/cssc.202501564","DOIUrl":"https://doi.org/10.1002/cssc.202501564","url":null,"abstract":"<p><p>In the search of new electroactive organic dyes in dye-sensitized solar cells technology, a series of D-π-A assemblies, named as TA-BTD-CNCOOH, OMeTA-BTD-CNCOOH, TA-Y6-CNCOOH, and OMeTA-Y6-CNCOOH is rationally designed and synthesized, in which precise modifications have been carried out in order to obtain structure-performance relations in the field of dye-sensitized solar cells. After careful evaluation of the photophysical and electrochemical properties of these semiconductors, these systems are applied as active materials, showing high performance with power conversion efficiency maximum values of 9.05% and 18.5% for outdoor and indoor conditions, respectively. In addition, the best material of these organic architectures, TA-BTD-CNCOOH, shows an excellent long-term stability, up to 3,360 h, with no significant variance in its performance over time.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202501564"},"PeriodicalIF":6.6,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145147077","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
Modulation of Self-Assembly and Enhanced Photocatalytic H2 Production by Porphyrin-Dipeptide Conjugates. 卟啉-二肽缀合物对自组装和增强光催化制氢的调节作用。
IF 6.6 2区 化学
ChemSusChem Pub Date : 2025-09-25 DOI: 10.1002/cssc.202501251
Evitina Triantafyllou, Emmanouil Nikoloudakis, Sotiris Psilodimitrakopoulos, Dimitrios Kavalieros, Georgios Landrou, Emmanuel Stratakis, Georgios Charalambidis, Anna Mitraki, Athanassios G Coutsolelos
{"title":"Modulation of Self-Assembly and Enhanced Photocatalytic H<sub>2</sub> Production by Porphyrin-Dipeptide Conjugates.","authors":"Evitina Triantafyllou, Emmanouil Nikoloudakis, Sotiris Psilodimitrakopoulos, Dimitrios Kavalieros, Georgios Landrou, Emmanuel Stratakis, Georgios Charalambidis, Anna Mitraki, Athanassios G Coutsolelos","doi":"10.1002/cssc.202501251","DOIUrl":"https://doi.org/10.1002/cssc.202501251","url":null,"abstract":"<p><p>Herein, it is reported the visible-light-induced green hydrogen generation from self-assembled porphyrin-dipeptide hybrids. For the first time the self-assembly ability of a protected alanine-phenylalanine dipeptide is investigated via a simple protocol, which proved efficient in forming well-defined fibrillar architectures. These self-assembling properties are conveyed to peptide-porphyrin chromophores after their covalent conjugation. Interestingly, different architectures are observed depending on the solvent system, the solvent evaporation rate, the presence of metal in the porphyrin core, and the peripheral substitution of the porphyrin. Moving one step forward, it is explored the activity of the self-assembled nanostructures towards photocatalytic green H<sub>2</sub> production from aqueous protons under visible-light irradiation. The distinct self-assembly behavior of the synthesized conjugates and their impact on photocatalytic hydrogen production is systematically explored in this study. Nonlinear second harmonic generation optical measurements are employed to define how the shape of the nanostructures is related to the H<sub>2</sub> production efficiency. Notably, the tubular nanostructures presented the best catalytic performance, achieving a high H<sub>2</sub> production activity of 32.7 mmol·g<sup>-1</sup>·h<sup>-1</sup>. Through detailed characterization and performance evaluation, it is aimed to uncover new insights into the design and optimization of peptide-porphyrin-based photocatalysts for sustainable energy applications.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202501251"},"PeriodicalIF":6.6,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135905","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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