IF 12.6

EcoMat Pub Date : 2026-06-14 DOI: 10.1002/eom2.70082

Priyanka Yadav, Hyerin Kim, Bo Hyeon Cho, Jin Soo Yoo, Liu Guohong, Magapati Gangasubrahmanyam, Young Yong Kim, Jinhwan Yoon, Sung-Ho Jin

{"title":"Morphology Control of D-A-D and D-A-A Type Donor Polymers via Thiophene-π-Siloxane Spacer Engineering to Produce Scalable High-Performance Organic Photovoltaics","authors":"Priyanka Yadav, Hyerin Kim, Bo Hyeon Cho, Jin Soo Yoo, Liu Guohong, Magapati Gangasubrahmanyam, Young Yong Kim, Jinhwan Yoon, Sung-Ho Jin","doi":"10.1002/eom2.70082","DOIUrl":"https://doi.org/10.1002/eom2.70082","url":null,"abstract":"One of the major challenges for the commercial application of high performance organic solar cells (OSCs) is scaling them from small-area devices to large-area submodules (LA-SMs). Here, we report the design and synthesis of two new π-conjugated spacer-functionalized donor polymers (SF-DPs), D-A-D-π-siloxane (SCl-SiO) and D-A-alkyl-A (SCl-6C), which incorporate thiophene-π-siloxane and hexyl alkyl spacer units into a benzodithiophene (BDT) and benzodithiophenedione (BDD) backbone. A promising technique for enhancing the charge transport, morphology, and stability of OSC devices is the use of spacers, which are designed polymer donors with specific side-chain functionalities. By applying this strategy to LA-SMs (55 cm2) processed via non-halogenated solvent (o-xylene) and bar coating, a record PCE of about 15.5% was attained with remarkable operational stability (> 88%) of original PCE during prolonged light soaking and environmental stress tests. Additionally, small-area devices exhibited outstanding power conversion efficiencies (PCEs) exceeding 18% (PM6: SCl-SiO (HMw): Y6-BO) with reduced bimolecular recombination, enhanced charge mobilities, and well defined nanostructures confirmed by AFM, TEM, and GIWAX analyzes. These results indicate that side chain engineering with thiophene-π siloxane and hexyl alkyl incorporated spacer units, in conjunction with controlled molecular weight, provides a scalable pathway toward production of stable and highly efficient OSC modules.\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>\u0000 ","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"8 7","pages":""},"PeriodicalIF":12.6,"publicationDate":"2026-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70082","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148247852","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}

引用次数: 0

Potentiostatic Electrodeposition of Binder-Free Ni–W Electrodes for Coupled Energy-Saving Hydrogen Production and Urea Remediation 无粘结剂Ni-W电极的恒电位电沉积耦合节能制氢和尿素修复

IF 12.6

EcoMat Pub Date : 2026-06-01 DOI: 10.1002/eom2.70081

Yi Zeng, Hu Yuan, Yuan Wang, Shun Lu, Mohamed N. Khalil, Saddick Donkor, Donna Cairns, Xueqiang Qi, Ben Bin Xu, Qingsong Hua

{"title":"Potentiostatic Electrodeposition of Binder-Free Ni–W Electrodes for Coupled Energy-Saving Hydrogen Production and Urea Remediation","authors":"Yi Zeng, Hu Yuan, Yuan Wang, Shun Lu, Mohamed N. Khalil, Saddick Donkor, Donna Cairns, Xueqiang Qi, Ben Bin Xu, Qingsong Hua","doi":"10.1002/eom2.70081","DOIUrl":"https://doi.org/10.1002/eom2.70081","url":null,"abstract":"Substituting the kinetically sluggish oxygen evolution reaction with the thermodynamically favorable urea oxidation reaction (UOR) offers a compelling strategy for simultaneously achieving energy-efficient hydrogen production and wastewater remediation. Nevertheless, the design of UOR catalysts that combine high activity with long-term durability remains a significant challenge. Herein, we report the scalable fabrication of binder-free Ni–W nanostructures directly grown on carbon paper through a controlled potentiostatic electrodeposition approach. Electrochemical kinetic analysis confirms that the electrocrystallization follows a diffusion-controlled pathway characterized by instantaneous nucleation and subsequent three-dimensional growth. The optimized Ni–W electrode delivers outstanding UOR activity, reaching a current density of 100 mA cm−2 at a potential of just 1.77 V versus the reversible hydrogen electrode. In a two-electrode urea electrolyzer configuration, the system achieves 10 mA cm−2 at only 1.54 V, markedly lower than the voltage required for conventional water splitting. Beyond the energy-efficient hydrogen generation, the system demonstrates meaningful environmental remediation capability, degrading 47% of urea over 30 h of continuous electrolysis. By integrating pollutant removal with electrolytic H2 production within a single platform, this work establishes a scalable, binder-free catalyst architecture aligned with circular economy principles and advances the frontier of sustainable energy conversion.\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>\u0000 ","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"8 6","pages":""},"PeriodicalIF":12.6,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70081","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148103546","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}

引用次数: 0

Potentiostatic Electrodeposition of Binder-Free Ni–W Electrodes for Coupled Energy-Saving Hydrogen Production and Urea Remediation 无粘结剂Ni-W电极的恒电位电沉积耦合节能制氢和尿素修复

IF 12.6

EcoMat Pub Date : 2026-06-01 DOI: 10.1002/eom2.70081

Yi Zeng, Hu Yuan, Yuan Wang, Shun Lu, Mohamed N. Khalil, Saddick Donkor, Donna Cairns, Xueqiang Qi, Ben Bin Xu, Qingsong Hua

{"title":"Potentiostatic Electrodeposition of Binder-Free Ni–W Electrodes for Coupled Energy-Saving Hydrogen Production and Urea Remediation","authors":"Yi Zeng, Hu Yuan, Yuan Wang, Shun Lu, Mohamed N. Khalil, Saddick Donkor, Donna Cairns, Xueqiang Qi, Ben Bin Xu, Qingsong Hua","doi":"10.1002/eom2.70081","DOIUrl":"https://doi.org/10.1002/eom2.70081","url":null,"abstract":"Substituting the kinetically sluggish oxygen evolution reaction with the thermodynamically favorable urea oxidation reaction (UOR) offers a compelling strategy for simultaneously achieving energy-efficient hydrogen production and wastewater remediation. Nevertheless, the design of UOR catalysts that combine high activity with long-term durability remains a significant challenge. Herein, we report the scalable fabrication of binder-free Ni–W nanostructures directly grown on carbon paper through a controlled potentiostatic electrodeposition approach. Electrochemical kinetic analysis confirms that the electrocrystallization follows a diffusion-controlled pathway characterized by instantaneous nucleation and subsequent three-dimensional growth. The optimized Ni–W electrode delivers outstanding UOR activity, reaching a current density of 100 mA cm−2 at a potential of just 1.77 V versus the reversible hydrogen electrode. In a two-electrode urea electrolyzer configuration, the system achieves 10 mA cm−2 at only 1.54 V, markedly lower than the voltage required for conventional water splitting. Beyond the energy-efficient hydrogen generation, the system demonstrates meaningful environmental remediation capability, degrading 47% of urea over 30 h of continuous electrolysis. By integrating pollutant removal with electrolytic H2 production within a single platform, this work establishes a scalable, binder-free catalyst architecture aligned with circular economy principles and advances the frontier of sustainable energy conversion.\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>\u0000 ","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"8 6","pages":""},"PeriodicalIF":12.6,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70081","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148103553","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}

引用次数: 0

IF 12.6

EcoMat Pub Date : 2026-04-29

引用次数: 0

IF 12.6

EcoMat Pub Date : 2026-04-28

引用次数: 0

IF 12.6

EcoMat Pub Date : 2026-04-27

引用次数: 0

IF 12.6

EcoMat Pub Date : 2026-04-22

引用次数: 0

Detection of Toxic Gases and Volatile Organic Compounds Using Highly Adsorptive Nanomaterials: A Comprehensive Assessment 使用高吸附性纳米材料检测有毒气体和挥发性有机化合物：综合评估

IF 12.6

EcoMat Pub Date : 2026-04-15 DOI: 10.1002/eom2.70065

Hamdy A. Ismail, Sabbah Ataya, Mohamed M. Goda, Ahmed G. Hussein, Ahmed Ramah, Ahmad G. Ramadan, Rashid Khan, Joy Djuansjah, Swellam W. Sharshir, Ahmed El-Harairy

{"title":"Detection of Toxic Gases and Volatile Organic Compounds Using Highly Adsorptive Nanomaterials: A Comprehensive Assessment","authors":"Hamdy A. Ismail, Sabbah Ataya, Mohamed M. Goda, Ahmed G. Hussein, Ahmed Ramah, Ahmad G. Ramadan, Rashid Khan, Joy Djuansjah, Swellam W. Sharshir, Ahmed El-Harairy","doi":"10.1002/eom2.70065","DOIUrl":"https://doi.org/10.1002/eom2.70065","url":null,"abstract":"This review presents a comprehensive assessment of highly adsorptive nanomaterials for detecting toxic gases and volatile organic compounds (VOCs). Due to the high surface area-to-volume ratio and tunable properties of nanomaterials, their integration into sensing applications offers superior selectivity and sensitivity for trace amounts of toxic gases or VOCs. The article details the major mechanisms of sensor operation, including chemiresistor electrochemical, catalytic, optical, and field-effect transistor (FET) devices. It then essentially assesses four key nanomaterial categories: carbon-based nanomaterials (e.g., carbon black,graphene oxide, carbon nanotubes, graphene, fullerene, carbon nanofiber, and carbon quantum dots), transition metal oxides (e.g., ZnO, SnO2, TiO2, and perovskites), two-dimensional materials (e.g., MoS2, germanene, and bismuthine), and zeolite-based nanoparticles. For each class, synthesis, functionalization, composites and specific gas sensing performance are discussed, supported by current research. A bibliometric analysis illustrates trends and global collaboration in this field of research. Finally, the review identifies current challenges, including cross-sensitivity and selectivity limitations, long-term stability, and recovery issues, and suggests forward-looking strategies such as machine learning, IoT integration, flexible platforms, and heterojunction engineering to develop real-world sensor applications.\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>\u0000 ","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"8 5","pages":""},"PeriodicalIF":12.6,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70065","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147686316","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}

引用次数: 0

IF 12.6

EcoMat Pub Date : 2026-04-13

引用次数: 0

A Review on In Situ Microscopic Understandings of Dendritic Zinc Growth in Aqueous Zinc Ion Batteries 水锌离子电池枝晶锌生长的原位显微研究进展

IF 12.6

EcoMat Pub Date : 2026-04-09 DOI: 10.1002/eom2.70059

Yun Li, Rui Zhong, Kun He, Jingang Wu, Shuhao Teng, Binhe Yan, Yifei Yuan

{"title":"A Review on In Situ Microscopic Understandings of Dendritic Zinc Growth in Aqueous Zinc Ion Batteries","authors":"Yun Li, Rui Zhong, Kun He, Jingang Wu, Shuhao Teng, Binhe Yan, Yifei Yuan","doi":"10.1002/eom2.70059","DOIUrl":"10.1002/eom2.70059","url":null,"abstract":"Aqueous zinc ion batteries (AZIBs) have garnered significant attention in recent years due to their environmental friendliness, low cost, and high theoretical capacity, positioning them as a highly promising and safe energy storage system. However, under actual battery operating conditions, zinc (Zn) anodes commonly face issues such as uncontrollable electrodeposition and the resulting dendrite growth, which severely hinder the further application and promotion of AZIBs. The key to addressing this bottleneck lies in understanding the nucleation and growth of Zn dendrites, which has been the goal of a substantial amount of recent research reports. This review thus timely summarizes recent findings related to the evolving mechanisms of Zn dendrites in a working AZIB; specifically, it focuses on those revealed by in situ diagnoses via optical and electron microscopy, the combination of which yields multi-scale observations that sufficiently cover necessary details from Zn nucleation (nanoscale) to the dendritically developing stage (microscale). By summarizing such in situ findings related to electrochemical Zn deposition, this review aims to establish a reliable model to describe the entire developing stage of dendritic Zn deposits, thus paving the theoretical basis for the strategic engineering of the Zn anode for more sustainable AZIBs.\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>\u0000 ","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"8 4","pages":""},"PeriodicalIF":12.6,"publicationDate":"2026-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.70059","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147715100","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}

引用次数: 0

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