EcoEnergy最新文献_第3页

Ion-Enriched Porous Organic Polymer for Gold Recovery From E-Waste 富离子多孔有机聚合物用于回收电子垃圾中的金

EcoEnergy Pub Date : 2026-08-18 Epub Date: 2026-04-03 DOI: 10.1002/ece2.70060

Rui Zhang, Yongjun Huang, Yuncheng He, Wenfeng Zhai, Kaige Wu, Jie Zhao, Yan Huang, Dapeng Cao, Shitao Wang

{"title":"Ion-Enriched Porous Organic Polymer for Gold Recovery From E-Waste","authors":"Rui Zhang, Yongjun Huang, Yuncheng He, Wenfeng Zhai, Kaige Wu, Jie Zhao, Yan Huang, Dapeng Cao, Shitao Wang","doi":"10.1002/ece2.70060","DOIUrl":"https://doi.org/10.1002/ece2.70060","url":null,"abstract":"The rapid consumption of electronic products has led to a significant accumulation of electronic waste (e-waste) that contains a considerable amount of gold (Au). Recovery of Au from e-waste is significant for the potential sustainability of industry and society. Porous organic polymers (POPs) recently show promising applications in Au recovery; most of them are designed as neutral structures. Here, we report an ion-enriched POP (PiP-1) through the polycondensation of the ionic guanidine-based and imidazole-based building blocks. Attributed to its highly charged frameworks, PiP-1 displays ultrahigh Au adsorption capacity of 1530.9 mg g−1, with excellent selectivity and recyclability. Moreover, PiP-1 also shows promising selective capture ability toward Au3+ ions in the actual CPU leaching solution test. Our work illustrates that developing high ion-density frameworks could be an efficient strategy to enhance the Au adsorption performance, and ionic POPs hold great potentials as gold adsorbents from actual e-waste.","PeriodicalId":100387,"journal":{"name":"EcoEnergy","volume":"4 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece2.70060","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148783484","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

Revealing the Inhibitory Effect of Strong Metal Support Interactions on CO2 Poisoning in Urea Oxidation Reaction 揭示强金属载体相互作用对尿素氧化反应中CO2中毒的抑制作用

EcoEnergy Pub Date : 2026-08-18 Epub Date: 2026-04-28 DOI: 10.1002/ece2.70064

Zhixiang Zhai, Wenjie Jiang, Shuxuan Yin, Boyao Feng, Jia Wu, Huan Wen, Shibin Yin

{"title":"Revealing the Inhibitory Effect of Strong Metal Support Interactions on CO2 Poisoning in Urea Oxidation Reaction","authors":"Zhixiang Zhai, Wenjie Jiang, Shuxuan Yin, Boyao Feng, Jia Wu, Huan Wen, Shibin Yin","doi":"10.1002/ece2.70064","DOIUrl":"https://doi.org/10.1002/ece2.70064","url":null,"abstract":"The development of highly active urea oxidation reaction (UOR) catalysts with superior anti-poisoning capability poses a critical challenge for the large-scale application of urea electrolysis. Guided by the strong metal-support interaction (SMSI) strategy, this work constructs a NiCo-Na0.3WO3 SMSI catalyst featuring strong electronic interactions between Na0.3WO3 and NiCo alloy, engineered via electronic orbital-level modulation driven by their significant work function difference. Distinct from conventional dual-active-site synergism that primarily relies on empirical geometric bifunctionality, this unique SMSI optimizes the adsorption behavior of urea molecules and weakens the adsorption of the toxic CO2 by reducing the degree of orbital symmetry matching, addressing the core issue of catalyst poisoning and deactivation. Consequently, the fabricated catalyst demonstrates a low onset UOR potential (1.29 VRHE) and long-term stability (maintaining operation for 250 h at 100 mA cm−2), highlighting its viability for urea electrolysis applications. This work elucidates the inhibitory mechanism of SMSI against CO2 poisoning on metal surface from an electronic orbital perspective, establishing a novel paradigm for designing highly active and stable UOR catalysts.","PeriodicalId":100387,"journal":{"name":"EcoEnergy","volume":"4 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece2.70064","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148784554","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

Mixed-Impurity Co-Poisoning of NH3-SCR Catalysts: Poisoning Mechanisms, Antagonistic Effects, and Anti-Inactivation Strategies NH3-SCR催化剂混合杂质共中毒：中毒机制、拮抗作用和抗失活策略

EcoEnergy Pub Date : 2026-08-18 Epub Date: 2026-04-30 DOI: 10.1002/ece2.70066

Hongyan Xue, Manas Pal, Zhaoteng Xue, Dongsen Mao

{"title":"Mixed-Impurity Co-Poisoning of NH3-SCR Catalysts: Poisoning Mechanisms, Antagonistic Effects, and Anti-Inactivation Strategies","authors":"Hongyan Xue, Manas Pal, Zhaoteng Xue, Dongsen Mao","doi":"10.1002/ece2.70066","DOIUrl":"https://doi.org/10.1002/ece2.70066","url":null,"abstract":"Industrial flue gases rarely contain only one type of toxic substance. Instead, alkali/alkaline-earth metals, heavy metals, sulfur species, and phosphorus often coexist and interact with NH3-SCR catalysts in a nonadditive manner. This review mainly summarizes the research progress on various poisons exposure over the past 5 years, with a focus on combinations involving anion and alkali/heavy metals, SO2 and alkali/heavy metals, alkali or alkaline-earth metals and heavy metals, P and alkali/heavy metals, as well as combinations of heavy metals. Coexisting toxins often synergistically leads to catalyst deactivation. The main pathways include the concurrent loss of Brønsted and Lewis acidity of the catalyst, weakened redox ability, formation of chlorides or sulfates, pore blockage, and obstruction of electron and oxygen transport at the interface between the active phase and the support. Antagonistic effects also appear when toxic substances cross chelate into inert phases, such as Ca–As–O complexes or sulfates/phosphates of alkali/heavy metals. The active sites occupied by the toxic substances will be released and partially restore their adsorption and activation capabilities for reactants. From these cases, three practical strategies have emerged: establishing sacrificial capture domains for alkali and heavy metals, protecting the active phase with shells or layered porous carrier that intercepts deposit, and introducing co-catalysts to enhance oxygen migration rate and acid-site density, thereby maintaining the Langmuir–Hinshelwood and Eley–Rideal routes. These insights clarify the relationship between the structure and function of NH3-SCR catalysts, and outline strategies for maintaining strong NH3-SCR performance under typical mixed impurity conditions in sintering and other industrial flue gases.","PeriodicalId":100387,"journal":{"name":"EcoEnergy","volume":"4 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece2.70066","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148785145","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

Water-Activated Proton Transfer Mediated by Subnanoscale CeO2-Cu2O Interfaces for Near-Unity CH4 Selectivity in Photothermal CO2 Reduction 亚纳米级CeO2-Cu2O界面介导的水活化质子转移在光热CO2还原中接近统一的CH4选择性

EcoEnergy Pub Date : 2026-08-18 Epub Date: 2026-04-26 DOI: 10.1002/ece2.70070

Siyang Nie, Liang Wu, Qingda Liu, Xun Wang

{"title":"Water-Activated Proton Transfer Mediated by Subnanoscale CeO2-Cu2O Interfaces for Near-Unity CH4 Selectivity in Photothermal CO2 Reduction","authors":"Siyang Nie, Liang Wu, Qingda Liu, Xun Wang","doi":"10.1002/ece2.70070","DOIUrl":"https://doi.org/10.1002/ece2.70070","url":null,"abstract":"Water-mediated photothermal CO2 reduction to CH4 is promising for renewable energy storage and carbon neutrality, but its selectivity and efficiency are limited by sluggish water dissociation that serves as a critical proton source and the demanding eight-electron transfer barrier of CH4 formation. These issues lead to insufficient protons for *CO hydrogenation. Herein, we engineer subnanoscale CeO2-Cu2O heterostructured subnanowires with densely enriched CeO2-Cu2O interfaces to overcome this proton bottleneck. Experimental and theoretical simulation results demonstrate that these interfaces accelerate H2O dissociation and create a “proton-rich microenvironment,” which boosts the proton supply rate to match the kinetic demand of *CO hydrogenation. This directs the protonation of *CO to *CHO instead of CO desorption; these intermediates then convert to *CH2O and *CH3O, achieving over 99% CH4 selectivity and a record yield of 2818 μmol g−1 h−1. This yield is 15-fold higher than that of bulk and nanoparticle counterparts, underscoring the key role of subnanoscale interface enrichment in optimizing multielectron reactions.","PeriodicalId":100387,"journal":{"name":"EcoEnergy","volume":"4 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece2.70070","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148785239","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

Bimetallic Synergy in Cocatalyst Alloy Nanoparticles for Efficient Photocatalytic Hydrogen Production 用于高效光催化制氢的助催化剂纳米合金双金属协同作用

EcoEnergy Pub Date : 2026-08-18 Epub Date: 2026-04-23 DOI: 10.1002/ece2.70065

Zhihui Yang, Jiali Ren, Yanjun Xue, Xinyu Wang, Jian Tian

{"title":"Bimetallic Synergy in Cocatalyst Alloy Nanoparticles for Efficient Photocatalytic Hydrogen Production","authors":"Zhihui Yang, Jiali Ren, Yanjun Xue, Xinyu Wang, Jian Tian","doi":"10.1002/ece2.70065","DOIUrl":"https://doi.org/10.1002/ece2.70065","url":null,"abstract":"A bimetallic NiAg alloy is assembled on the surface of Zn3In2S6 to construct a NiAg-Zn3In2S6 composite using a chemical reduction method. By adjusting the different alloy ratios, the hydrogen evolution activity of the optimum Ni0.25Ag0.75-Zn3In2S6 photocatalyst achieves 21.32 mmol·g−1·h−1, which is 12.5, 3.8, and 1.7 times higher than those of pure Zn3In2S6 (1.7 mmol·g−1·h−1), Ni-Zn3In2S6 (5.5 mmol·g−1·h−1), and Ag-Zn3In2S6 (12.3 mmol·g−1·h−1), respectively. The apparent quantum efficiency (AQE) of the optimum Ni0.25Ag0.75-Zn3In2S6 photocatalyst is 15.1% and 6.8% under monochromatic light at wavelengths of 370 and 456 nm. Systematic experiments and DFT theoretical calculations demonstrate that the plasmon hybridization of the loaded NiAg alloy can significantly improve the light-trapping ability of Zn3In2S6. The introduction of NiAg alloy optimizes the carrier transport paths, acts as a trapping site for the photoinduced electrons, and reduces carrier recombination, thus enhancing the photocatalytic performance of the catalysts. Furthermore, the NiAg alloy improves H adsorption on both Ni and Ag and provides more optimal Ag sites as active sites for H adsorption. This approach demonstrates the feasibility of replacing precious metals with cost-effective, earth-abundant NiAg alloys as efficient cocatalysts for modifying Zn3In2S6, holding promising potential for photocatalytic hydrogen evolution applications.","PeriodicalId":100387,"journal":{"name":"EcoEnergy","volume":"4 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece2.70065","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148785142","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

The Role of Current Mismatch on Reverse-Bias Stability of Monolithic Perovskite/Silicon Tandem Solar Cells 电流失配对单片钙钛矿/硅串联太阳能电池反偏置稳定性的影响

EcoEnergy Pub Date : 2026-08-18 Epub Date: 2026-04-03 DOI: 10.1002/ece2.70059

Xuechun Zhang, Lujia Xu, Fuzong Xu, Subhashri Mannar, Arsalan Razzaq, Thomas Allen, Stefaan De Wolf

{"title":"The Role of Current Mismatch on Reverse-Bias Stability of Monolithic Perovskite/Silicon Tandem Solar Cells","authors":"Xuechun Zhang, Lujia Xu, Fuzong Xu, Subhashri Mannar, Arsalan Razzaq, Thomas Allen, Stefaan De Wolf","doi":"10.1002/ece2.70059","DOIUrl":"https://doi.org/10.1002/ece2.70059","url":null,"abstract":"We systematically investigate the stability of monolithic perovskite/silicon tandem solar cells under reverse voltage bias. Specifically, perovskite-limited, current-matched, and silicon-limited conditions are analyzed using equivalent circuit modeling and controlled experiments to clarify the subcell voltage distribution and failure behavior under reverse bias. We find that silicon-limited tandems show superior stability, retaining over 95% of their initial efficiency under prolonged reverse-bias stress, as most of the applied voltage drops across the robust silicon subcell while the perovskite remains in forward bias. This protective effect is strongly governed by the silicon shunt resistance: a high value maintains protection of the perovskite top cell, whereas a shunted silicon cell results in voltage redistribution and tandem failure. High air mass solar spectra in the early morning and late afternoon, characterized by diminished blue irradiance, can transiently shift the current-limiting subcell from the silicon to the perovskite cell, leading to increased susceptibility to reverse-bias stress. Fine-tuning the top-cell bandgap based on these diurnal spectral conditions can enable silicon-limited operation to be maintained throughout the day, offering a practical route to enhance tandem resilience without structural modification. These insights provide spectrum-aware, practically actionable guidelines for designing reverse-bias-resilient tandem solar cells.","PeriodicalId":100387,"journal":{"name":"EcoEnergy","volume":"4 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece2.70059","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148783485","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

Dual-Stabilized Single-Site Fe(II) for Catalytic Conversion of CO2 to Propiolic Acid Under Ambient Condition 双稳定单点Fe（II）在环境条件下催化CO2转化为丙酸的研究

EcoEnergy Pub Date : 2026-08-18 Epub Date: 2026-04-01 DOI: 10.1002/ece2.70058

Bin Lei, Zhenzhen Zhou, Xiao Liu, Bo Li, Wenyuan Wang, Jian-Gong Ma, Peng Cheng

{"title":"Dual-Stabilized Single-Site Fe(II) for Catalytic Conversion of CO2 to Propiolic Acid Under Ambient Condition","authors":"Bin Lei, Zhenzhen Zhou, Xiao Liu, Bo Li, Wenyuan Wang, Jian-Gong Ma, Peng Cheng","doi":"10.1002/ece2.70058","DOIUrl":"https://doi.org/10.1002/ece2.70058","url":null,"abstract":"Efficient conversion of carbon dioxide to organics has been a promising outlet for value-added carbon dioxide consumption. However, most of the catalysts developed for this process currently focus on expensive noble metal catalysts, which severely limits their further evolution and application. Herein, a precisely designed dual-stabilized single-site Fe(II) catalytic system is developed through combination of the covalent interaction between the β-diketiminate ligand and the hyperactive Fe(II) center and the host–guest interaction between the porous matrix and active species, which realized the most efficient production of propiolic acid from CO2 and terminal alkynes under ambient conditions with stable multiple recycling. The advantages of both homogeneous and heterogeneous catalysts are achieved in a single-site Fe(II) catalytic system, whose performance surpasses the known noble metal catalysts in terms of yield. Density functional theory model calculations are employed to explore the optimal pathways and mechanisms for the catalytic conversion of CO2 to propiolic acid over the prepared catalytic platform.","PeriodicalId":100387,"journal":{"name":"EcoEnergy","volume":"4 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece2.70058","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148783607","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

From Ship to Shore: A Review of Vessel-To-Grid Bidirectional Charging for Sustainable Maritime Transport 从船到岸：可持续海运船舶到电网双向收费研究综述

EcoEnergy Pub Date : 2026-08-18 Epub Date: 2026-04-26 DOI: 10.1002/ece2.70068

Jonathan Bloor, Tamer Kamel, Sarah Fear, Lee J. Durndell

{"title":"From Ship to Shore: A Review of Vessel-To-Grid Bidirectional Charging for Sustainable Maritime Transport","authors":"Jonathan Bloor, Tamer Kamel, Sarah Fear, Lee J. Durndell","doi":"10.1002/ece2.70068","DOIUrl":"https://doi.org/10.1002/ece2.70068","url":null,"abstract":"This review examines bidirectional charging technology for marine transport electrification, focusing on vessel-to-grid (V2G) systems integration within maritime operations. Unlike prior studies that typically address technological, operational, or policy aspects in isolation, this work provides a cross-disciplinary and system-level synthesis of V2G in maritime contexts. It evaluates the technological advancements, economic potential, and environmental benefits that V2G can offer to the marine sector, with an emphasis on cost reduction, emissions control, and energy resilience. By explicitly linking battery systems, power electronics, port infrastructure, operational strategies, and regulatory frameworks, the review highlights critical interdependencies that shape real-world implementation. Key challenges are identified, such as infrastructure requirements, grid compatibility, and lifecycle management, along with emerging innovations aimed at addressing these barriers. Case studies from maritime businesses illustrate practical applications and market viability, whereas concluding insights identify cross-sector research gaps and provide an integrated framework for future research and scalable impact in sustainable marine transport.","PeriodicalId":100387,"journal":{"name":"EcoEnergy","volume":"4 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece2.70068","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148785238","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

A Thermally Robust Luminescent Antimony Halide for Real-Time Detection of Volatile Iodine at Elevated Temperatures 用于高温下挥发性碘实时检测的热鲁棒发光卤化锑

EcoEnergy Pub Date : 2026-08-18 Epub Date: 2026-04-01 DOI: 10.1002/ece2.70054

Ying Jiang, Yumin Wang, Fu Peng, Junren Wang, Shangge Zhang, Linwei He, Guangyuan Chen, Jianrong Zeng, Fangling Jiang, Lin Zhu, Kai Li, Long Chen, Shuao Wang, Yaxing Wang

{"title":"A Thermally Robust Luminescent Antimony Halide for Real-Time Detection of Volatile Iodine at Elevated Temperatures","authors":"Ying Jiang, Yumin Wang, Fu Peng, Junren Wang, Shangge Zhang, Linwei He, Guangyuan Chen, Jianrong Zeng, Fangling Jiang, Lin Zhu, Kai Li, Long Chen, Shuao Wang, Yaxing Wang","doi":"10.1002/ece2.70054","DOIUrl":"https://doi.org/10.1002/ece2.70054","url":null,"abstract":"Real-time monitoring of volatile molecular iodine (I2), a hazardous radioactive byproduct of nuclear processes, is critical for environmental and human safety. Fluorescence quenching offers a promising detection route, but conventional luminophores suffer from thermal instability at operational temperatures. Herein, we report a thermally robust zero-dimensional antimony halide, [Sr2(18-crown-6-ether)2(H2O)2(Cl2)]SbCl5, as the first luminescent sensor capable of real-time I2 detection at elevated temperatures (348 K) in dynamic mode with a limit of detection (LoD) of ∼400 ppb, establishing a benchmark LoD value for high-temperature iodine sensing via a luminescent technique. This material maintains structural integrity and intense [SbCl5]2− luminescence at 348 K, which is attributed to hydrogen-bonding networks that suppress thermal quenching. In addition, the Sb(III) lone pairs serve as electron-donating sites, capturing I2 to form polyiodides (i.e., I3− and I5−) via electron transfer, which triggers instantaneous luminescence quenching. This work establishes a new paradigm for high-temperature optical sensors in nuclear safety applications.","PeriodicalId":100387,"journal":{"name":"EcoEnergy","volume":"4 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece2.70054","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148783606","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

Defect-Engineered SrTiO3-x for Flexoelectric-Dominated Catalysis 缺陷工程SrTiO3-x柔性电主导催化

EcoEnergy Pub Date : 2026-08-18 Epub Date: 2026-04-25 DOI: 10.1002/ece2.70067

Yu-Chun Huang, Yue Jiang, Haotian Wen, Yunlong Sun, Hongyang Ma, Suchen Huang, Yating Ran, Zizheng Song, Xueqing Fang, Zekun Dong, Peiyuan Guan, Chenlu Jiang, Catherine Stampfl, Zibin Chen, Shery L. Y. Chang, Pramod Koshy, Danyang Wang

{"title":"Defect-Engineered SrTiO3-x for Flexoelectric-Dominated Catalysis","authors":"Yu-Chun Huang, Yue Jiang, Haotian Wen, Yunlong Sun, Hongyang Ma, Suchen Huang, Yating Ran, Zizheng Song, Xueqing Fang, Zekun Dong, Peiyuan Guan, Chenlu Jiang, Catherine Stampfl, Zibin Chen, Shery L. Y. Chang, Pramod Koshy, Danyang Wang","doi":"10.1002/ece2.70067","DOIUrl":"https://doi.org/10.1002/ece2.70067","url":null,"abstract":"Flexocatalysis provides an alternative route for converting mechanical energy into electrical energy through flexoelectricity, thereby avoiding the crystal-symmetry constraints that limit conventional piezocatalysis to non-centrosymmetric materials. In this study, strong flexocatalytic effects were established in reduced strontium titanate (R-STO) nanoparticles prepared by a facile solid-state reduction route. Regulated generation of oxygen vacancies generates near-surface lattice distortion and a gradient in lattice strain, which together give rise to substantial flexoelectric polarization, and thus R-STO demonstrates an excellent capability for Rhodamine B (RhB) decomposition, achieving > 78% degradation within 45 min. The kinetic rate constant of R-STO (0.0307 min−1) is nearly double that of pristine STO (0.0163 min−1), primarily due to enhanced charge separation and prolonged electron–hole pair lifetimes induced by the flexoelectric polarization. R-STO also exhibits an impressive co-catalyst-free hydrogen production rate of 380.8 μmol/g/h, representing a fourfold increase over pristine STO (94.5 μmol/g/h). This enhancement is attributed to synergistic effects of improved charge separation and transfer, a favorable band structure, and optimized adsorption configurations during catalysis. These results underscore the promise of flexocatalysis for applications in environmental remediation and renewable energy production.","PeriodicalId":100387,"journal":{"name":"EcoEnergy","volume":"4 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece2.70067","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148784547","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