Electron最新文献_第2页

Directing the photogenerated charge flow in a photocathodic metal protection system with single-domain ferroelectric PbTiO3 nanoplates 利用单域铁电 PbTiO3 纳米板引导光阴极金属保护系统中的光生电荷流

Electron Pub Date : 2024-06-26 DOI: 10.1002/elt2.51

Hui Xie, Jianyou Yu, Yuchen Fang, Zhijun Wang, Shihe Yang, Zheng Xing

{"title":"Directing the photogenerated charge flow in a photocathodic metal protection system with single-domain ferroelectric PbTiO3 nanoplates","authors":"Hui Xie, Jianyou Yu, Yuchen Fang, Zhijun Wang, Shihe Yang, Zheng Xing","doi":"10.1002/elt2.51","DOIUrl":"https://doi.org/10.1002/elt2.51","url":null,"abstract":"Photocathodic protection (PCP) is arguably an ideal alternative technology to the conventional electrochemical cathodic protection methods for corrosion mitigation of metallic infrastructure due to its eco-friendliness and low-energy-consumption, but the construction of highly-efficient PCP systems still remains challenging, caused primarily by the lack of driving force to guide the charge flow through the whole PCP photoanodes. Here, we tackle this key issue by equipping the PCP photoanode with ferroelectric single-domain PbTiO3 nanoplates, which can form a directional “macroscopic electric field” throughout the entire photoanode controllable by external polarization. The properly poled PCP photoanode allows the photogenerated electrons and holes to migrate in opposite directions, that is, electrons to the protected metal and holes to the photoanode/electrolyte interface, leading to largely suppressed charge annihilation and consequently a considerable boost in the overall solar energy conversion efficiency of the PCP system. The as-fabricated photoanode can not only supply sufficient photocurrent to 304 stainless steel to initiate cathodic protection, but also shift the metal potential to the corrosion-free range. Our findings provide a viable design strategy for future high-performance PCP systems based on ferroelectric nanomaterials with enhanced charge flow manipulation.","PeriodicalId":100403,"journal":{"name":"Electron","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/elt2.51","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142100059","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 function of formamidinium chloride additive improves the efficiency and stability of low-dimensional perovskite solar cells 甲脒氯化物添加剂的双重功能提高了低维过氧化物太阳能电池的效率和稳定性

Electron Pub Date : 2024-06-16 DOI: 10.1002/elt2.52

Lvpeng Yang, Tong Bie, Peiyu Ma, Jin Xin, Tho D. Nguyen, Ming Shao

{"title":"Dual function of formamidinium chloride additive improves the efficiency and stability of low-dimensional perovskite solar cells","authors":"Lvpeng Yang, Tong Bie, Peiyu Ma, Jin Xin, Tho D. Nguyen, Ming Shao","doi":"10.1002/elt2.52","DOIUrl":"https://doi.org/10.1002/elt2.52","url":null,"abstract":"Despite their excellent intrinsic stability, low-dimensional Ruddlesden-Popper (LDRP) perovskites face challenges with low power conversion efficiency (PCE), primarily due to the widen bandgap and limited charge transport caused by the bulky spacer cation. Herein, we introduce formamidinium chloride (FACl) as an additive into (4-FPEA)2MA4Pb5I16 perovskite. On the one hand, the addition of FACl narrows the bandgap through cation exchange between MA+ and FA+, thereby extending the light absorption range and enhancing photocurrent generation. On the other hand, this MA+/FA+ cation exchange decelerates the sublimation of methylammonium chloride and prolongs the crystallization of LDRP perovskite, leading to higher crystallinity and better film quality with a decreased trap-state density. Consequently, this approach led to a remarkable PCE of 20.46% for <n> = 5 LDRP perovskite solar cells (PSCs), ranking among the highest for MA/FA mixed low dimensional PSCs reported to date. Remarkably, our PSCs maintained 90% and 92% of the initial efficiency even after 1300 h at (60 ± 5)°C and (60 ± 5)% relative humidity, respectively. This work promotes the development of LDRP PSCs with excellent efficiency and environmental stability for potential commercial application.","PeriodicalId":100403,"journal":{"name":"Electron","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/elt2.52","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142099988","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

Cover Image, Volume 2, Number 2, May 2024 封面图片，第 2 卷第 2 号，2024 年 5 月

Electron Pub Date : 2024-05-30 DOI: 10.1002/elt2.54

Gaihong Wang, Zhijie Chen, Wei Wei, Bing-Jie Ni

引用次数: 0

Cover Image, Volume 2, Number 2, May 2024 封面图片，第 2 卷第 2 号，2024 年 5 月

Electron Pub Date : 2024-05-30 DOI: 10.1002/elt2.53

Jinghai Li, Yanyan Gong, William W. Yu

引用次数: 0

Cellulose-based smart materials: Novel synthesis techniques, properties, and applications in energy storage and conversion devices 纤维素基智能材料：新型合成技术、特性以及在能量存储和转换设备中的应用

Electron Pub Date : 2024-05-25 DOI: 10.1002/elt2.42

Pariksha Bishnoi, Samarjeet Singh Siwal, Vinod Kumar, Vijay Kumar Thakur

{"title":"Cellulose-based smart materials: Novel synthesis techniques, properties, and applications in energy storage and conversion devices","authors":"Pariksha Bishnoi, Samarjeet Singh Siwal, Vinod Kumar, Vijay Kumar Thakur","doi":"10.1002/elt2.42","DOIUrl":"https://doi.org/10.1002/elt2.42","url":null,"abstract":"There has been a significant scope toward the cutting-edge investigations in hierarchical carbon nanostructured electrodes originating from cellulosic materials, such as cellulose nanofibers, available from natural cellulose and bacterial cellulose. Elements of energy storage systems (ESSs) are typically established upon inorganic/metal mixtures, carbonaceous implications, and petroleum-derived hydrocarbon chemicals. However, these conventional substances may need help fulfilling the ever-increasing needs of ESSs. Nanocellulose has grown significantly as an impressive 1D element due to its natural availability, eco-friendliness, recyclability, structural identity, simple transformation, and dimensional durability. Here, in this review article, we have discussed the role and overview of cellulose-based hydrogels in ESSs. Additionally, the extraction sources and solvents used for dissolution have been discussed in detail. Finally, the properties (such as self-healing, transparency, strength and swelling behavior), and applications (such as flexible batteries, fuel cells, solar cells, flexible supercapacitors and carbon-based derived from cellulose) in energy storage devices and conclusion with existing challenges have been updated with recent findings.","PeriodicalId":100403,"journal":{"name":"Electron","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/elt2.42","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141187627","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

Hybrid silver nanoparticles: Modes of synthesis and various biomedical applications 杂化银纳米粒子：合成模式和各种生物医学应用

Electron Pub Date : 2024-05-24 DOI: 10.1002/elt2.22

Priyanka Singh, Shivang Singh, Balaji Maddiboyina, SaiKrishna Kandalam, Tomasz Walski, Raghvendra A. Bohara

{"title":"Hybrid silver nanoparticles: Modes of synthesis and various biomedical applications","authors":"Priyanka Singh, Shivang Singh, Balaji Maddiboyina, SaiKrishna Kandalam, Tomasz Walski, Raghvendra A. Bohara","doi":"10.1002/elt2.22","DOIUrl":"10.1002/elt2.22","url":null,"abstract":"In the present day, there is a growing trend of employing new strategies to synthesize hybrid nanoparticles, which involve combining various functionalities into a single nanocomposite system. These modern methods differ significantly from the traditional classical approaches and have emerged at the forefront of materials science. The fabrication of hybrid nanomaterials presents an unparalleled opportunity for applications in a wide range of areas, including therapy to diagnosis. The focus of this review article is to shed light on the different modalities of hybrid nanoparticles, providing a concise description of hybrid silver nanoparticles, exploring various modes of synthesis and classification of hybrid silver nanoparticles, and highlighting their advantages. Additionally, we discussed core-shell silver nanoparticles and various types of core and shell combinations based on the material category, such as dielectric, metal, or semiconductor. The two primary classes of hybrid silver nanoparticles were also reviewed. Furthermore, various hybrid nanoparticles and their methods of synthesis were discussed but we emphasize silica as a suitable candidate for hybridization alongside metal nanoparticles. This choice is due to its hydrophilic surface qualities and high surface charge, which provide the desired repulsive forces to minimize aggregation between the metal nanoparticles in the liquid solution. Silica shell encapsulation also provides chemical inertness, robustness and the adaptability to the desired hybrid nanoparticle. Therefore, among all the materials used to coat metal nanoparticles; silica is highly approved.","PeriodicalId":100403,"journal":{"name":"Electron","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/elt2.22","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141102490","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

Engineering strategies for high-voltage LiCoO2 based high-energy Li-ion batteries 基于高电压钴酸锂的高能锂离子电池的工程设计策略

Electron Pub Date : 2024-05-12 DOI: 10.1002/elt2.33

Xiaoshuang Ma, Jinkun Wang, Zehua Wang, Li Wang, Hong Xu, Xiangming He

引用次数: 0

Developments of photo‐/electro‐catalysis based on covalent organic frameworks: A review 基于共价有机框架的光催化/电催化技术的发展：综述

Electron Pub Date : 2024-05-11 DOI: 10.1002/elt2.39

Guiping Yang, Qing Xu, Gaofeng Zeng

引用次数: 0

Electrocatalysis-driven sustainable plastic waste upcycling 电催化驱动的可持续塑料废物再循环

Electron Pub Date : 2024-04-29 DOI: 10.1002/elt2.34

Gaihong Wang, Zhijie Chen, Wei Wei, Bing-Jie Ni

{"title":"Electrocatalysis-driven sustainable plastic waste upcycling","authors":"Gaihong Wang, Zhijie Chen, Wei Wei, Bing-Jie Ni","doi":"10.1002/elt2.34","DOIUrl":"https://doi.org/10.1002/elt2.34","url":null,"abstract":"With large quantities and natural resistance to degradation, plastic waste raises growing environmental concerns in the world. To achieve the upcycling of plastic waste into value-added products, the electrocatalytic-driven process is emerging as an attractive option due to the mild operation conditions, high reaction selectivity, and low carbon emission. Herein, this review provides a comprehensive overview of the upgrading of plastic waste via electrocatalysis. Specifically, key electrooxidation processes including the target products, intermediates and reaction pathways in the plastic electro-reforming process are discussed. Subsequently, advanced electrochemical systems, including the integration of anodic plastic monomer oxidation and value-added cathodic reduction and photo-involved electrolysis processes, are summarized. The design strategies of electrocatalysts with enhanced activity are highlighted and catalytic mechanisms in the electrocatalytic oxidation of plastic waste are elucidated. To promote the electrochemistry-driven sustainable upcycling of plastic waste, challenges and opportunities are further put forward.","PeriodicalId":100403,"journal":{"name":"Electron","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/elt2.34","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141187556","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

Colloidal quantum dots and two-dimensional material heterostructures for photodetector applications 应用于光电探测器的胶体量子点和二维材料异质结构

Electron Pub Date : 2024-04-05 DOI: 10.1002/elt2.30

Jingying Luo, Gurpreet Singh Selopal, Xin Tong, Zhiming Wang

{"title":"Colloidal quantum dots and two-dimensional material heterostructures for photodetector applications","authors":"Jingying Luo, Gurpreet Singh Selopal, Xin Tong, Zhiming Wang","doi":"10.1002/elt2.30","DOIUrl":"10.1002/elt2.30","url":null,"abstract":"Photodetectors (PDs) are optoelectronic devices that convert optical signals into electrical responses. Recently, there has been a tremendous increase in research interest in PDs based on colloidal quantum dots (QDs) and two-dimensional (2D) material heterostructures owing to the strong light-absorption capacity and the well-adjustable band gap of QDs and the superior charge carriers transfer ability of 2D materials. In particular, the heterojunction formed between QDs and 2D materials can effectively enhance the separation and transport of photogenerated charge carriers, which is expected to establish PDs with ultrahigh photoconductive gain, high responsivity, and detectivity. This review aimed to summarize the state-of-the-art advances in the research of QDs/2D material nanohybrid PDs, including the device parameters, architectures, working mechanisms, and fabrication technologies. The progress of hybrid PDs based on the heterojunction of QDs with different 2D materials, along with their innovative applications, are comprehensively described. In the end, the challenges and feasible strategies in future research and development are briefly proposed.","PeriodicalId":100403,"journal":{"name":"Electron","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/elt2.30","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140736417","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