Advanced Functional Materials最新文献_第4页

Direction-Decoupled Light-Emitting Metasurface via Guided-Photoluminescence Manipulation 通过光致发光操纵实现方向耦合发光元表面

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2024-11-20 DOI: 10.1002/adfm.202415823

Zejing Wang, Shuai Wan, Chenjie Dai, Zhe Li, Zhongyang Li

{"title":"Direction-Decoupled Light-Emitting Metasurface via Guided-Photoluminescence Manipulation","authors":"Zejing Wang, Shuai Wan, Chenjie Dai, Zhe Li, Zhongyang Li","doi":"10.1002/adfm.202415823","DOIUrl":"https://doi.org/10.1002/adfm.202415823","url":null,"abstract":"On-demand manipulation of light emissions is crucial for a variety of practical applications, including bio-imaging and optical display, etc. Within this realm, the invention of metasurfaces provides powerful light–matter interaction capabilities for the control of multitudinous emission parameters. However, due to the omnidirectional, random, and incoherent nature of photoluminescence (PL) emission, the multiplexing modulation of PL remains a challenge and is rarely realized. Here, a direction-decoupled light-emitting metasurface (LEM) is originally demonstrated to display dual-channel independent incoherent-emission images based on guided-PL manipulation. Utilizing the wavevector differences of guided-PL between opposite pumping directions, the LEM is designed to enable selective unidirectional emission, thereby decoupling the directional freedom for PL multiplexing and realizing dual meta-display. Besides, the direction-multiplexed LEM can be integrated simultaneously with pumping-light holography for multi-dimensional meta-display. Such programmable unidirectional emission manipulation and direction-multiplexed PL meta-display approaches promise light-emitting techniques and can potentially find applications in multiplexing display, optical storage and encryption, etc.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"99 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142673707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reverse Oriented Dual-Interface Built-in Electric Fields of Robust Pd1Mo1Ta2Oα Bifunctional Electrocatalysis for Zinc-Air Batteries 用于锌-空气电池的强大 Pd1Mo1Ta2Oα 双功能电催化的反向双界面内置电场

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2024-11-20 DOI: 10.1002/adfm.202418211

Jun Lu, Kai Huang, Hongdae Lee, Shengyang Huang, Hao Fu, Hui Wang, Sixiao Liu, Donghyun Min, Cheng Lian, Ho Seok Park

{"title":"Reverse Oriented Dual-Interface Built-in Electric Fields of Robust Pd1Mo1Ta2Oα Bifunctional Electrocatalysis for Zinc-Air Batteries","authors":"Jun Lu, Kai Huang, Hongdae Lee, Shengyang Huang, Hao Fu, Hui Wang, Sixiao Liu, Donghyun Min, Cheng Lian, Ho Seok Park","doi":"10.1002/adfm.202418211","DOIUrl":"https://doi.org/10.1002/adfm.202418211","url":null,"abstract":"It is imperative yet challenging for developing highly efficient multifunctional electrocatalysts for future sustainable energy pursuits. Herein, dual-interface reinforced reverse orientation of built-in electric fields (BIEFs) is reported in Pd1Mo1Ta2Oα in-plane heterostructure, where amorphous Ta2O5 and PdOδ particles are confined to PdMo nanosheet, for robust bifunctional electrocatalysts of rechargeable zinc–air batteries. The as-synthesized electrocatalyst (Pd1Mo1Ta2Oα) exhibits remarkable catalytic activity toward oxygen reduction (Eon = 0.95 V, E1/2 = 0.81 V) and oxygen evolution (η10 = 401 mV) reactions with high kinetics and operational stability. These enhanced bifunctional electrocatalytic activities of Pd1Mo1Ta2Oα are attributed to the synergistic collaboration of dual-interface BIEFs, where PdMo || PdOδ initiating BIEF1 orientation is parallel to OER external electric field (ExEF) and Ta2O5 || PdOδ/PdMo initiating BIEF2 orientation is parallel to ORR ExEF. In particular, the rechargeable zinc-air battery (ZAB) with the as-designed Pd1Mo1Ta2Oα electrocatalysts delivers a high specific capacity of 1050 mAh g−1 and stable voltage profiles over 800 cycles. Therefore, this work provides the structural and interfacial designs of bifunctional electrocatalysts with the reverse oriented BIEFs that synergistically enhance intrinsic catalytic activity and electronic transport for both oxygen reduction reaction (ORR) and oxygen evolution reaction (OER).","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"11 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142678408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Two Birds with One Stone: Self-Supporting Anodes and Cathodes for Quasi-Solid-State Asymmetric Supercapacitors via Reactions of 2-Thiobarbituric Acid with Fe and Co Foams 一石二鸟：通过 2-硫代巴比妥酸与铁和钴泡沫的反应实现准固态不对称超级电容器的自支撑阳极和阴极

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2024-11-20 DOI: 10.1002/adfm.202416506

Jun Ren, Qian Xiang, Chunming Yang, Sufang Yang, Yun Liang, Jinlong Liu, Junhua Li, Dong Qian, Geoffrey I. N. Waterhouse

{"title":"Two Birds with One Stone: Self-Supporting Anodes and Cathodes for Quasi-Solid-State Asymmetric Supercapacitors via Reactions of 2-Thiobarbituric Acid with Fe and Co Foams","authors":"Jun Ren, Qian Xiang, Chunming Yang, Sufang Yang, Yun Liang, Jinlong Liu, Junhua Li, Dong Qian, Geoffrey I. N. Waterhouse","doi":"10.1002/adfm.202416506","DOIUrl":"https://doi.org/10.1002/adfm.202416506","url":null,"abstract":"Advanced electrode materials with simple manufacturing processes and wide voltage windows are needed for the commercialization of high energy density supercapacitors. Herein, a facile method is presented for fabricating self-supporting anodes and cathodes for quasi-solid-state asymmetric supercapacitors (QASCs) by hydrothermally reacting 2-thiobarbituric acid (TBA) with Fe foam (IF) and Co foam (CF), yielding FeTBA4/FeOOH/IF and Co9S8/CF electrodes, respectively. Due to the perfect match between the two electrodes, the redox-active TBA ligands in FeTBA4, the 2D ultrathin nanosheet structure of FeTBA4/FeOOH/IF, and multiple pairs of reversible redox reactions for suppressing water splitting, the configured Co9S8/CF//FeTBA4/FeOOH/IF QASC device delivers outstanding performance. The device possesses a wide operating voltage window of 1.6 V, leading to a high energy density of 82.64 Wh kg−1 at 486.38 W kg−1 and an equally impressive 35.36 Wh kg−1 at 4595.92 W kg−1. Furthermore, a 98.5% capacitance retention is realized after 10000 charging–discharging cycles. Impressively, density functional theory (DFT) calculations reveal the unique pseudocapacitive reactions on the surface of Co9S8/CF and FeTBA4/FeOOH/IF electrodes. Importantly, this work guides the development of high-energy-density supercapacitors via the matching of electrodes and the use of redox-active complex electrodes.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"11 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142673680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sculpting Mechanical Properties of Hydrogels by Patterning Seamlessly Interlocked Stiff Skeleton 通过绘制无缝交错的刚性骨架雕刻水凝胶的机械特性

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2024-11-20 DOI: 10.1002/adfm.202417477

Bin Zhu, Jiayu Wu, Desheng Liu, Yuke Yan, Xingxing Yang, Yixian Wang, Changcheng Bai, Danli Hu, Zhixing Zhang, Pan Jiang, Xiaolong Wang

{"title":"Sculpting Mechanical Properties of Hydrogels by Patterning Seamlessly Interlocked Stiff Skeleton","authors":"Bin Zhu, Jiayu Wu, Desheng Liu, Yuke Yan, Xingxing Yang, Yixian Wang, Changcheng Bai, Danli Hu, Zhixing Zhang, Pan Jiang, Xiaolong Wang","doi":"10.1002/adfm.202417477","DOIUrl":"https://doi.org/10.1002/adfm.202417477","url":null,"abstract":"Functional soft materials, especially hydrogels have been widely developed to achieve various soft structures and machines. However, synthetic hydrogels commonly show formula-dependent mechanical properties to fulfill the requirements of mechanical elasticity, stiffness, toughness, and tearing-resistance for adapting to complex application scenario. Inspired by heterostructures and materials found in nature such as leaves and insect wings, a sequential photopolymerization process combined with site-selective patterning exposure is reported to prepare programmable hydrogels with locally heterogeneous reinforcement skeletons, i.e., interpenetrating double networks. The heterogeneous interface between soft matrices and stiff skeletons is seamlessly interlocked through strong multiple hydrogen bonds induced by phase transition. By harnessing the size, shape, and distribution of the patterned stiff skeletons, a wide range of mechanical properties of hydrogels including modulus (0.32–5.92 MPa), toughness (0.15–18 kJ m−2), dissipated energy (1–100 kJ m−3), impact resistance, and mechanical anisotropy can be readily sculpted within one material system without needing design and optimization of the complex and elusive material formulation on demand. It is believed that this simple yet powerful method relying on heterogenous patterning would guide the development of functional hydrogel materials with programmable mechanical properties toward potential engineering applications, such as damping and flexible circuits.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"8 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142673713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hybrid Oxidization of Ethylene Glycol on Defective Ag-PtPd Electrocatalyst Beyond 3000 h Stability at an Industrial-Scale Current Density 有缺陷的银铂钯电催化剂上的乙二醇混合氧化在工业级电流密度下超过 3000 小时的稳定性

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2024-11-20 DOI: 10.1002/adfm.202418588

Ying Yang, Xuebo Cao, Lin Huang, Quankun Li, Li Gu, Zheng Yan, Mengli Li, Ruobin Cheng, Zhufeng Lu, Ai-Jun Wang, Wenchao Yang

{"title":"Hybrid Oxidization of Ethylene Glycol on Defective Ag-PtPd Electrocatalyst Beyond 3000 h Stability at an Industrial-Scale Current Density","authors":"Ying Yang, Xuebo Cao, Lin Huang, Quankun Li, Li Gu, Zheng Yan, Mengli Li, Ruobin Cheng, Zhufeng Lu, Ai-Jun Wang, Wenchao Yang","doi":"10.1002/adfm.202418588","DOIUrl":"https://doi.org/10.1002/adfm.202418588","url":null,"abstract":"Electrochemical oxidization of crude ethylene glycol (EG) to fine chemicals driven by sustainable energy is an eco-friendly solution to the upcycling of end-of-life polyethylene terephthalate (PET) wastes. Here, pseudo Agx-PtyPdz core–shell electrocatalyst capable of hybrid oxidation of EG to formate (FA) is designed and synthesized. The trimetallic system consists of Ag nanowire and ultrathin PtPd alloy skin with defects, such as holes and grooves. The defects expose the Ag core to the surroundings and convert Ag0 to Ag2+ active species at appropriate potential (> 1.2 V vs RHE). Thus, hybrid EG oxidization reaction is realized on the Agx-PtyPdz electrocatalyst, where PtPd skin catalyzes EG oxidization through conventional Faradaic electrode process owing to inherent activities of Pt and Pd, while Ag2+ serves as auxiliar oxidant to oxidize EG/intermediates (non-Faradaic reaction). Such a hybrid oxidization strategy reinforces the removal of adsorbates on Agx-PtyPdz electrocatalyst and refresh the active sites timely. Eventually, ultrahigh specific activity (24.45 A mg−1PtPd) and long-term stability (> 3000 h at current density ≥ 400 mA cm−2) are delivered by the system. The finding of Ag2+-enhanced alcohol oxidization reactions introduces a new paradigm for designing high-performance electrocatalysts for energy and environmental applications.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"8 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142678452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vacuum-Assisted Growth of Single Crystal Perovskite Arrays toward Ultralow Dark Current Photodetectors 真空辅助生长单晶 Perovskite 阵列以实现超低暗电流光电探测器

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2024-11-20 DOI: 10.1002/adfm.202418968

Suicai Zhang, Yalong Ge, Xuan Qin, Xuekai Wang, Tian Tao, Leiming Yu, Xiaohui Song, Yurong Jiang, Congxin Xia

{"title":"Vacuum-Assisted Growth of Single Crystal Perovskite Arrays toward Ultralow Dark Current Photodetectors","authors":"Suicai Zhang, Yalong Ge, Xuan Qin, Xuekai Wang, Tian Tao, Leiming Yu, Xiaohui Song, Yurong Jiang, Congxin Xia","doi":"10.1002/adfm.202418968","DOIUrl":"https://doi.org/10.1002/adfm.202418968","url":null,"abstract":"Metal halide perovskites are widely employed in photodetectors (PDs) due to their exceptional photoelectric conversion ability. However, the high dark current induced by defect states during perovskite crystallization has not been well resolved, which enormously deteriorates the sensitivity of PD. Herein, a vacuum-assisted template-confined growth method is proposed to successfully fabricate high-quality single crystal perovskite microwire arrays with low defect states and superior photoelectric characteristics. Experimentally and theoretically, it is proved that the fabricated perovskite microwire arrays PDs exhibit superior performance with commendable responsivity of 0.49 A W−1 and detectivity surpassing 1.21 × 1013 Jones, which profits from ultralow dark current of ≈200 fA at a 5 V bias. Particularly, the perovskite microwire arrays PD behaves the characteristics of flexible robust stability and high-definition image recognition. This work provides a universal strategy for optimizing perovskite crystal quality and constructing high-performance optoelectronic devices in many scenarios.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"51 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142678407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unveiling the Oxygen Migration Retarding Effort of Carbon Coating During Disproportionation Enabling High-ICE and Long-Cycle-Life SiO Anodes 揭示碳涂层在歧化过程中阻止氧迁移的作用，实现高ICE 和长周期寿命的氧化硅阳极

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2024-11-20 DOI: 10.1002/adfm.202416392

Ruoyang Wang, Yuqing Wu, Qing Yang, Haoyu Li, Fang Wan, Ting Chen, Tingru Chen, Benhe Zhong, Zhenguo Wu, Xiaodong Guo

{"title":"Unveiling the Oxygen Migration Retarding Effort of Carbon Coating During Disproportionation Enabling High-ICE and Long-Cycle-Life SiO Anodes","authors":"Ruoyang Wang, Yuqing Wu, Qing Yang, Haoyu Li, Fang Wan, Ting Chen, Tingru Chen, Benhe Zhong, Zhenguo Wu, Xiaodong Guo","doi":"10.1002/adfm.202416392","DOIUrl":"https://doi.org/10.1002/adfm.202416392","url":null,"abstract":"Low initial coulombic efficiency (ICE) and poor cycling performance are the pain points that hinder the commercialization of silicon monoxide (SiO) anode materials. Unfortunately, disproportionation commonly used to enhance cycling performance significantly reduces prelithiation efficiency, making it difficult to achieve both high-ICE and long-cycle-life SiO anodes. Herein, the intrinsic contradiction between disproportionation and prelithiation is successfully reconciled through the ingenious application of the carbon coating strategy, achieving a synergistic enhancement among the three processes (carbon coating, disproportionation, and prelithiation). The prepared SiO anode exhibits excellent electrochemical performance with an ICE as high as 113.74% and a reversible capacity of 713.68 mAh g−1 after 750 cycles. In-depth investigations reveal that carbon optimizes the distribution of Si and O within the disproportionated SiO, effectively thinning the SiO2 surface layer and releasing the shielded Si, thereby enhancing reversible capacity and prelithiation efficiency. TG-FTIR analysis further elucidates the underlying mechanism, demonstrating that the carbon effectively inhibits the outward migration and escape of O during disproportionation. In summary, this study uncovers the pivotal role of carbon coating in regulating the disproportionation behavior, promoting efficient prelithiation, and enhancing the capacity recovery of SiO.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"230 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142678411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Textile Hinges Enable Extreme Properties of Kirigami Metamaterials 纺织品铰链实现了叽里呱啦超材料的极端特性

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2024-11-20 DOI: 10.1002/adfm.202415986

Anne S. Meeussen, Giovanni Bordiga, Audrey X. Chang, Ben Spoettling, Kaitlyn P. Becker, L. Mahadevan, Katia Bertoldi

引用次数: 0

A Facile Strategy to Suppressing Impurity Phase in Perovskite Wet Films for Efficient and Stable Photovoltaics 抑制过氧化物湿膜中杂质相以实现高效稳定光伏发电的简便策略

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2024-11-20 DOI: 10.1002/adfm.202416582

Pu-An Lin, Wenfeng Zhang, Yang Yang, Lang Yu, Yuan Yin, Ruihao Chen, Bing Cai, Jie Sun, Xiaojia Zheng, Yuelong Huang, Wen-Hua Zhang

{"title":"A Facile Strategy to Suppressing Impurity Phase in Perovskite Wet Films for Efficient and Stable Photovoltaics","authors":"Pu-An Lin, Wenfeng Zhang, Yang Yang, Lang Yu, Yuan Yin, Ruihao Chen, Bing Cai, Jie Sun, Xiaojia Zheng, Yuelong Huang, Wen-Hua Zhang","doi":"10.1002/adfm.202416582","DOIUrl":"https://doi.org/10.1002/adfm.202416582","url":null,"abstract":"Perovskite solar cells are among the most promising candidates for the next generation of photovoltaic technology. However, the heterogeneous nature of mixed halide perovskites as ionic crystals raises challenges to their photovoltaic performance and long-term stability. Herein, a functional molecule, named 2-amino-4-trifluoromethylpyridine (2A4TP), is introduced as an inhibitor of impurity phases in perovskite wet films, enabling the formation of optically active pure phase (α-phase) perovskites at room temperature. Meanwhile, reducing aggregation barrier for perovskite colloidal particles contribute to accelerate perovskite nucleation rate. Ultimately, the resulting uniform perovskite films afford to the optimized perovskite solar cells (0.09 cm2) exhibited a champion efficiency of 24.59% along with superior thermal and operational stability. Finally, 30x30 cm2 modules fabricated in this way delivers an impressive efficiency of 16.12% (with an aperture area of 655.2 cm2), demonstrating the large-area compatibility of the strategy.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"19 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142679133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Self-Photocatalysis Boosted Electrochemiluminescence System of Pyrene Based Hydrogen-Bonded Organic Framework: Oxygen-Vacancy Mediated Adsorption and Peroxydisulfate Radical Activation 芘氢键有机框架的自光催化促进电化学发光系统：氧空隙介导的吸附和过硫酸盐自由基活化

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2024-11-20 DOI: 10.1002/adfm.202417733

Ying Wang, Ding Jiang, Yuqing Bian, Xiaojiao Du, Xueling Shan, Wenchang Wang, Hiroshi Shiigi, Haijiao Xie, Zhidong Chen

{"title":"Self-Photocatalysis Boosted Electrochemiluminescence System of Pyrene Based Hydrogen-Bonded Organic Framework: Oxygen-Vacancy Mediated Adsorption and Peroxydisulfate Radical Activation","authors":"Ying Wang, Ding Jiang, Yuqing Bian, Xiaojiao Du, Xueling Shan, Wenchang Wang, Hiroshi Shiigi, Haijiao Xie, Zhidong Chen","doi":"10.1002/adfm.202417733","DOIUrl":"https://doi.org/10.1002/adfm.202417733","url":null,"abstract":"Rational design and optimization of the electrochemiluminescence (ECL) system undoubtedly underpins critical future advances in the field of sensing. Herein, an efficient ECL system is prepared by the integration of pyrene self-assembled hydrogen-bonded organic frameworks (PSA-HOF) and defective hydrated tungsten oxide nanosheets (dWO3H2), displaying a self-cycling photocatalytic activation mechanism to boost ECL performances. PSA-HOF was exploited as the ECL luminophor to produce a light source with sufficient intensity due to the unique structure and aggregation-induced emission-enhanced emission. Meanwhile, dWO3H2O exhibited dual functionality: 1) serving as highly efficient adsorbents for capturing peroxydisulfate (PDS), 2) acting as photoactive materials, which can be activated by the light emitted from PSA-HOF. Notably, the presence of oxygen vacancies within dWO3H2O can not only lowered adsorption energy and increase exposure of active sites, but also enhance the photocatalytic performance, thus activating PDS through a radical-mediated mechanism, which can further stimulate the photocatalytic materials in turn to achieve self-circulation within the system. As a proof of concept, an ECL biosensor for detecting microcystin-RR (MC-RR) is successfully established, which displays a wide detection range and a low detection limit. This work offers a new perspective on the development of ECL technology with high efficiency and stability.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"71 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142679140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0