Electron最新文献_第8页

Cover Image, Volume 1, Number 2, November 2023 封面图片，第一卷，第2期，2023年11月

Electron Pub Date : 2023-11-28 DOI: 10.1002/elt2.23

Li Sun, Yating Li, Jiacheng Xie, Liqi Zhou, Peng Wang, Jian-Bin Xu, Yi Shi, Xinran Wang, Daowei He

引用次数: 0

Dual surface/bulk engineering of Nb2O5 for high-rate sodium storage 高速储钠用Nb2O5双表面/体工程

Electron Pub Date : 2023-11-23 DOI: 10.1002/elt2.15

Yingjun Jiang, Xianluo Hu

{"title":"Dual surface/bulk engineering of Nb2O5 for high-rate sodium storage","authors":"Yingjun Jiang, Xianluo Hu","doi":"10.1002/elt2.15","DOIUrl":"https://doi.org/10.1002/elt2.15","url":null,"abstract":"Orthorhombic Nb2O5 is a highly promising fast-charging anode material for sodium-ion capacitors. However, its poor intrinsic electronic/ionic conductivity limits its performance. Here, we developed a one-step heat treatment method to create an N-doped carbon coating on the outside and S-doped Nb2O5 on the inside (CN-SCN). Ionic liquids are used as the source of C/N/S, which synergistically enhance the surface and bulk electronic/ionic conductivity. The N-doped carbon coating on the surface exhibits excellent electronic conductivity and a low ion-diffusion barrier, thanks to the high nitrogen ratio and extremely low content (<2 wt%). Auger electron spectroscopy analysis confirms that S atoms detach from the carbon chain of the ionic liquids and enter the bulk Nb2O5, resulting in S-doped Nb2O5, significantly facilitating reaction kinetics. The CN-SCN electrodes exhibit outstanding rate capability, achieving a capacity of up to 94 mAh g−1 even at a high current rate of 50 C. When paired with activated carbon as the positive electrode, the sodium-ion capacitor with the CN-SCN anode exhibits a high-energy density of up to 59 Wh kg−1 and a long cycle life with 73% capacity retention after 10,000 cycles. This work opens up possibilities for low-cost and large-scale production of high-rate Nb2O5 for sodium-storage applications.","PeriodicalId":100403,"journal":{"name":"Electron","volume":"1 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/elt2.15","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138454682","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

Electrocatalytic conversion of waste polyamide-66 hydrolysates into high-added-value adiponitrile and hydrogen fuel 废聚酰胺-66水解物电催化转化为高附加值己二腈和氢燃料

Electron Pub Date : 2023-11-23 DOI: 10.1002/elt2.14

Chuqian Xiao, Wan Ru Leow, Luyang Chen, Yuhang Li, Chunzhong Li

{"title":"Electrocatalytic conversion of waste polyamide-66 hydrolysates into high-added-value adiponitrile and hydrogen fuel","authors":"Chuqian Xiao, Wan Ru Leow, Luyang Chen, Yuhang Li, Chunzhong Li","doi":"10.1002/elt2.14","DOIUrl":"https://doi.org/10.1002/elt2.14","url":null,"abstract":"To reduce environmental pollution and plastic recycling costs, polyamide-66 (PA-66) as the most consumed engineering polymer needs to be recycled effectively. However, the existing recycling methods cannot convert waste PA-66 into valuable chemicals for upcycling under ambient conditions. Here, we report an integrated hydrolysis and electrocatalytic process to upcycle waste PA-66 into valuable adiponitrile (ADN), adipic acid, and H2 commodities, thereby closing the PA-66 loop. To enable electrooxidation of the PA-66 hydrosylate hexamethylenediamine (HMD), we fabricated anode catalysts with hierarchical Ni3S2@Fe2O3 core-shell heterostructures comprising spindle-shaped Ni3S2 cores and Fe2O3 nanosheet shells. The unique core-shell architecture and synergy of the Ni3S2 and Fe2O3 catalysts enabled the selective dehydrogenation of C–N bonds from HMD to nitrile C≡N bonds, forming ADN with near-unity Faradaic efficiency at 1.40 V during the 100-h stability test even at 100 mA cm−2. X-ray photoelectron spectroscopy revealed that the Ni(Fe) oxy(hydroxide) species formed were in the active state during oxidation, accelerating the activation of the amino C–N bond for dehydrogenation directly into the C≡N bonds.","PeriodicalId":100403,"journal":{"name":"Electron","volume":"1 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/elt2.14","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138454683","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

Electron energy levels determining cathode electrolyte interphase formation 决定阴极电解质间相形成的电子能级

Electron Pub Date : 2023-10-10 DOI: 10.1002/elt2.9

Zhengfeng Zhang, Changdong Qin, Xiaopeng Cheng, Jinhui Li, Yuefei Zhang, Wengao Zhao, Le Wang, Yingge Du, Manling Sui, Pengfei Yan

{"title":"Electron energy levels determining cathode electrolyte interphase formation","authors":"Zhengfeng Zhang, Changdong Qin, Xiaopeng Cheng, Jinhui Li, Yuefei Zhang, Wengao Zhao, Le Wang, Yingge Du, Manling Sui, Pengfei Yan","doi":"10.1002/elt2.9","DOIUrl":"10.1002/elt2.9","url":null,"abstract":"Cathode electrolyte interphase (CEI) has a significant impact on the performance of rechargeable batteries and is gaining increasing attention. Understanding the fundamental and detailed CEI formation mechanism is of critical importance for battery chemistry. Herein, a diverse of characterization tools are utilized to comprehensively analyze the composition of the CEI layer as well as its formation mechanism by LiCoO2 (LCO) cathode. We reveal that CEI is mainly composed of the reduction products of electrolyte and it only parasitizes the degraded LCO surface which has transformed into a disordered spinel structure due to oxygen loss and lithium depletion. Based on the energy diagram and the chemical potential analysis, the CEI formation process has been well explained, and the proposed CEI formation mechanism is further experimentally validated. This work highlights that the CEI formation process is nearly identical to that of the anode-electrolyte-interphase, both of which are generated due to the electrolyte directly in contact with the low chemical potential electrode material. This work can deepen and refresh our understanding of CEI.","PeriodicalId":100403,"journal":{"name":"Electron","volume":"1 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/elt2.9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136293864","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: 1

Life cycle safety issues of lithium metal batteries: A perspective 锂金属电池的生命周期安全问题:一个视角

Electron Pub Date : 2023-10-10 DOI: 10.1002/elt2.8

Shi-Jie Yang, Feng-Ni Jiang, Jiang-Kui Hu, Hong Yuan, Xin-Bing Cheng, Stefan Kaskel, Qiang Zhang, Jia-Qi Huang

{"title":"Life cycle safety issues of lithium metal batteries: A perspective","authors":"Shi-Jie Yang, Feng-Ni Jiang, Jiang-Kui Hu, Hong Yuan, Xin-Bing Cheng, Stefan Kaskel, Qiang Zhang, Jia-Qi Huang","doi":"10.1002/elt2.8","DOIUrl":"10.1002/elt2.8","url":null,"abstract":"The rising lithium metal batteries (LMBs) demonstrate a huge potential for improving the utilization duration of energy storage devices due to high theoretical energy density. Benefiting from the designs in the electrolyte, interface, and lithium host, several attempts have been made in the commercial application of LMBs. However, the application of lithium anode introduces additional safety risks and potential catastrophic accidents due to the high activity of lithium metal and dendrite during the electrochemical cycles. A comprehensive understanding of challenges and design issues on the safety hazards of LMBs in life cycle management is imperative for safe and commercial applications of LMBs. This paper first reviews emerging key safety issues and promising corresponding enhancements of LMBs during their production, utilization, and recycling. The wet air instability of lithium metal anode and gas production during activation have undoubtedly become the most intractable problems in LMBs production. It is necessary to use spraying technology to build a good protection layer upon lithium metal anode. Then, the growth of lithium dendrites poses a higher challenge to the utilization of LMBs, which requires the design of better electrolyte, anode skeleton, and other strategies as well as the prediction of LMBs life through big data and other methods. As for LMBs recovery, it is of great significance to choose the solvent to effectively control the consumption rate and temperature of highly reactive lithium metal powder. At last, further appeals and improvements are proposed for inspiring more related research to push forward the commercial use of LMBs.","PeriodicalId":100403,"journal":{"name":"Electron","volume":"1 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/elt2.8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136359375","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: 1

Modulating contact properties by molecular layers in organic thin-film transistors 用分子层调制有机薄膜晶体管的接触特性

Electron Pub Date : 2023-09-20 DOI: 10.1002/elt2.7

Li Sun, Yating Li, Jiacheng Xie, Liqi Zhou, Peng Wang, Jian-Bin Xu, Yi Shi, Xinran Wang, Daowei He

{"title":"Modulating contact properties by molecular layers in organic thin-film transistors","authors":"Li Sun, Yating Li, Jiacheng Xie, Liqi Zhou, Peng Wang, Jian-Bin Xu, Yi Shi, Xinran Wang, Daowei He","doi":"10.1002/elt2.7","DOIUrl":"10.1002/elt2.7","url":null,"abstract":"Advanced organic devices and circuits demand both ultrahigh charge carrier mobilities and ultralow-resistance contacts. However, due to a larger access resistance in staggered organic thin-film transistors (OTFTs), the achievement of ultralow contact resistance () is still a challenge. The modulation of contact resistance by molecular layers near the interface has been rarely reported. Here, we demonstrate that few-layer organic single crystals are grown on hafnium oxide (HfO2) by solution-shearing epitaxy. We utilize these organic crystals to fabricate bottom-gate staggered OTFTs with different contact processes. The results show that the contact properties of OTFTs are obviously modulated by crystal layers. The tri-layer (3L) evaporated-Au C10-DNTT OTFTs exhibit optimal electrical performance, including ultralow of 5.6 Ω ∙ cm, recorded transfer length of 0.4 μm, field-effect mobility over 14 , threshold voltage lower than 0.3 V, and long-term air stability over 8 months. The main cause is that the metal atoms can penetrate into the charge transport layer, with damage-free, in 3L evaporated-Au OTFTs; nevertheless, it cannot be realized in other cases. Due to layer stacking of conjugated molecules and polymers, our strategy can efficiently modulate the contact resistance to aid the development of high-performance organic devices and circuits.","PeriodicalId":100403,"journal":{"name":"Electron","volume":"1 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/elt2.7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136306960","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

Back Cover Image, Volume 1, Number 1, August 2023 封底图片，第1卷第1期，2023年8月

Electron Pub Date : 2023-08-31 DOI: 10.1002/elt2.11

Kang Wang, Dingwang Huang, Xiaowei Li, Kuang Feng, Ming Shao, Jiabao Yi, Weidong He, Liang Qiao

引用次数: 0

Cover Image, Volume 1, Number 1, August 2023 封面图片，第1卷第1期，2023年8月

Electron Pub Date : 2023-08-31 DOI: 10.1002/elt2.10

Dongjiang Chen, Yuanpeng Liu, Chao Feng, Yuhui He, Shengyu Zhou, Botao Yuan, Yunfa Dong, Haodong Xie, Guangfeng Zeng, Jiecai Han, Weidong He

引用次数: 0

Unconventional strategies to break through the efficiency of light-driven water splitting: A review 突破光驱动水分解效率的非常规策略：综述

Electron Pub Date : 2023-08-23 DOI: 10.1002/elt2.4

Kang Wang, Dingwang Huang, Xiaowei Li, Kuang Feng, Ming Shao, Jiabao Yi, Weidong He, Liang Qiao

{"title":"Unconventional strategies to break through the efficiency of light-driven water splitting: A review","authors":"Kang Wang, Dingwang Huang, Xiaowei Li, Kuang Feng, Ming Shao, Jiabao Yi, Weidong He, Liang Qiao","doi":"10.1002/elt2.4","DOIUrl":"https://doi.org/10.1002/elt2.4","url":null,"abstract":"Semiconductor-based solar-driven water splitting technology is an environmentally friendly and cost-effective approach for the production of clean fuels. The overall solar-to-hydrogen efficiency of semiconductor-based photo(electro)catalysts is jointly determined by factors, such as light absorption efficiency of the photo(electro)catalysts, internal separation efficiency of charge carriers, and injection efficiency of surface charges. However, the traditional improvement strategies, such as morphology control, functional layer modification, and band alignment engineering, still have certain limitations in enhancing the conversion efficiency of the photo(electro)catalytic water splitting. Recently, unconventional enhancement strategies based on surface plasmonic effects, piezoelectric effects, thermoelectric effects, and magnetic effects have provided unique pathways for improving the solar-to-hydrogen efficiency of photo(electro)catalysts. Therefore, this review outlines the fundamental concepts of these physical effects and elucidates their intrinsic mechanisms in enhancing the efficiency of photo(electro)catalysts for water splitting process through practical application examples. Ultimately, the future development of unconventional strategies for enhancing photo(electro)catalytic water splitting is envisioned.","PeriodicalId":100403,"journal":{"name":"Electron","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/elt2.4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50141611","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: 1

Tandem catalysts CuSe/AuX for increasing local *CO concentration to promote the photocatalytic CO2 reduction to C2H4 串联催化剂CuSe/AuX用于提高局部*CO浓度以促进光催化CO2还原为C2H4

Electron Pub Date : 2023-08-17 DOI: 10.1002/elt2.3

Yifan Yan, Hongzhi Wang, Xinze Bi, Yuezhu Zhao, Wenhang Wang, Mingbo Wu

{"title":"Tandem catalysts CuSe/AuX for increasing local *CO concentration to promote the photocatalytic CO2 reduction to C2H4","authors":"Yifan Yan, Hongzhi Wang, Xinze Bi, Yuezhu Zhao, Wenhang Wang, Mingbo Wu","doi":"10.1002/elt2.3","DOIUrl":"https://doi.org/10.1002/elt2.3","url":null,"abstract":"It is highly desired yet challenging to strategically steer CO2 reduction reaction (CO2RR) toward ethylene (C2H4) with high activity under visible light irradiation. The key to achieving this goal is increasing the local *CO concentration on the catalyst surface and promoting the C-C coupling progress. Here, we prepare tandem catalysts of CuSe/AuX to realize the photocatalytic reduction of CO2 to C2H4 with high activity. Under light irradiation, the loaded Au NPs are used to activate and transfer CO2 to *CO. The generated *CO intermediate could migrate to the surface of CuSe and cause the C-C coupling process. Moreover, the theoretical calculation results show that the transport process of *CO from Au NPs to CuSe is spontaneous, which plays a critical role in guaranteeing the high concentration of *CO intermediate on the surface of CuSe. This work not only reveals the effect of tandem catalysis on CO2RR to C2 products but also explores the most suitable tandem catalyst to produce C2H4 with high activity by adjusting the loading amounts of Au NPs. Thus, it provides a way to adjust the Cu-based catalyst used in the production of C2 products by photocatalytic CO2RR, which may attract extensive attention in the field.","PeriodicalId":100403,"journal":{"name":"Electron","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/elt2.3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50144138","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