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Cutting-edge advances in pressurized electrocatalytic reactors 加压电催化反应器的最新进展
IF 42.9
eScience Pub Date : 2025-05-01 DOI: 10.1016/j.esci.2024.100369
Yang Li , Guining Shao , Xinyu Zheng , Yansong Jia , Yanghong Xia , Yuhai Dou , Ming Huang , Chaohua Gu , Jianfeng Shi , Jinyang Zheng , Shixue Dou
{"title":"Cutting-edge advances in pressurized electrocatalytic reactors","authors":"Yang Li ,&nbsp;Guining Shao ,&nbsp;Xinyu Zheng ,&nbsp;Yansong Jia ,&nbsp;Yanghong Xia ,&nbsp;Yuhai Dou ,&nbsp;Ming Huang ,&nbsp;Chaohua Gu ,&nbsp;Jianfeng Shi ,&nbsp;Jinyang Zheng ,&nbsp;Shixue Dou","doi":"10.1016/j.esci.2024.100369","DOIUrl":"10.1016/j.esci.2024.100369","url":null,"abstract":"<div><div>As an important component in electrochemical energy conversion and storage systems, electrochemical reactors (ECRs) are widely used for commodity chemical synthesis, including electrolytic H<sub>2</sub> production, NH<sub>3</sub> synthesis, and high-value CO<sub>2</sub> utilization. However, ECRs pose challenges related to low energy efficiency and selectivity due to the low solubility of their gaseous reactants, slow kinetics, and limitations in mass transfer. It is thus imperative to develop advanced high-pressure (HP) ECRs to address these issues. In this review, we start by presenting a comprehensive analysis of the fundamental mechanisms of HP ECRs. Then, we summarize the state-of-the-art HP ECR applications for water electrolysis, the N<sub>2</sub> reduction reaction, and the CO<sub>2</sub> reduction reaction. We also demonstrate that mathematical simulations are valuable tools for digital validation and guidance to accelerate the design of better reactors. Finally, we make recommendations on developing relevant specifications and standards for the industrial application of HP ECRs.</div></div>","PeriodicalId":100489,"journal":{"name":"eScience","volume":"5 3","pages":"Article 100369"},"PeriodicalIF":42.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143931608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Unraveling the dipole field in ultrathin, porous, and defective carbon nitride nanosheets for record-high piezo-photocatalytic H2O2 production 超薄、多孔和有缺陷的氮化碳纳米片中的偶极子场,用于创纪录的高压电光催化H2O2生产
IF 42.9
eScience Pub Date : 2025-05-01 DOI: 10.1016/j.esci.2024.100370
Zhaoqiang Wang , Guixiang Ding , Hongwei Huang , Juntao Zhang , Qi Lv , Li Shuai , Yonghao Ni , Guangfu Liao
{"title":"Unraveling the dipole field in ultrathin, porous, and defective carbon nitride nanosheets for record-high piezo-photocatalytic H2O2 production","authors":"Zhaoqiang Wang ,&nbsp;Guixiang Ding ,&nbsp;Hongwei Huang ,&nbsp;Juntao Zhang ,&nbsp;Qi Lv ,&nbsp;Li Shuai ,&nbsp;Yonghao Ni ,&nbsp;Guangfu Liao","doi":"10.1016/j.esci.2024.100370","DOIUrl":"10.1016/j.esci.2024.100370","url":null,"abstract":"<div><div>Piezo-photocatalysis is capable of concerting mechanical vibration into chemical energy, portraying a promising alternative technology for H<sub>2</sub>O<sub>2</sub> production. However, low mechanical energy conversion efficiency and constrained surface active sites hinder its practical application. Herein, ultrathin porous carbon nitride nanosheets with controlled carbon vacancies and oxygen doping (OCN-X, where X represents the calcination temperature) are synthesized by thermal oxidation etching to achieve unprecedented piezo-photocatalytic H<sub>2</sub>O<sub>2</sub> production. The carbon vacancies and oxygen doping cause the formation of asymmetric structure of triazine unit with a strong dipole field, which creates spontaneous polarization field to speed up directional electron transfer to the nitrogen active sites for effective piezo-photocatalysis. Meanwhile, the ultrathin and porous structure formed by hot-oxygen etching enhances the mechanical energy conversion efficiency and collaboratively induces adsorbed oxygen via indirect two-electron oxygen reduction reaction (ORR) transfer pathway to effectively produce H<sub>2</sub>O<sub>2</sub>. Consequently, without any co-catalysts, the as-prepared OCN-460 displays record-high piezo-photocatalytic H<sub>2</sub>O<sub>2</sub> production rate of 19.30 ​mmol ​g<sup>−1</sup> ​h<sup>−1</sup>, far outdistancing those previously reported for piezo-photocatalysts. Furthermore, it also still maintains a notable piezo-photocatalytic activity of 2.87 ​mmol ​g<sup>−1</sup> ​h<sup>−1</sup> in the pure water system. This work offers some new insights for the future design of an effective piezo-photocatalytic H<sub>2</sub>O<sub>2</sub> production system.</div></div>","PeriodicalId":100489,"journal":{"name":"eScience","volume":"5 3","pages":"Article 100370"},"PeriodicalIF":42.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143931614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Revisiting the critical role of metallic ash elements in the development of hard carbon for advancing sodium-ion battery applications 回顾了金属灰分元素在硬碳发展中的关键作用,以推进钠离子电池的应用
IF 42.9
eScience Pub Date : 2025-05-01 DOI: 10.1016/j.esci.2025.100371
Chun Wu , Wenjie Huang , Yinghao Zhang , Qinghang Chen , Li Li , Yajun Zhang , Xingqiao Wu , Shu-Lei Chou
{"title":"Revisiting the critical role of metallic ash elements in the development of hard carbon for advancing sodium-ion battery applications","authors":"Chun Wu ,&nbsp;Wenjie Huang ,&nbsp;Yinghao Zhang ,&nbsp;Qinghang Chen ,&nbsp;Li Li ,&nbsp;Yajun Zhang ,&nbsp;Xingqiao Wu ,&nbsp;Shu-Lei Chou","doi":"10.1016/j.esci.2025.100371","DOIUrl":"10.1016/j.esci.2025.100371","url":null,"abstract":"<div><div>Hard carbon (HC) anodes in sodium-ion batteries (SIBs) are prized for their high capacity, durability, cost-efficiency, environmental sustainability, and safety. The metallic ash elements in HCs inevitably affect the overall performance of SIBs, however, the unclear role of metallic ash elements during carbonization and the electrochemical sodium storage process presents challenges for advancing HC design concepts. In this review, the traditional role of metallic ash element realized in the past and the deep understanding by a new sight from the view of intrinsic types in precursor matrix are initially introduced. Subsequently, the effect of catalyzing graphitization degree, constructing pore structure, tuning SEI formation and tailoring defects of the HCs regulated by extrinsic factors introduced through experimental conditions in recent years are comprehensively summarized. Additionally, future development prospects and perspectives on the research about metallic ash element in HC are also briefly outlined. It is believed that this review can deliver noteworthy viewpoints by introducing metallic ash elements, for the continued development of adjusting the microstructure of HCs at the nanoscale to actualize high-performance SIBs.</div></div>","PeriodicalId":100489,"journal":{"name":"eScience","volume":"5 3","pages":"Article 100371"},"PeriodicalIF":42.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143931432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of active hydrogen on pathway selection in electrochemical nitrate reduction 活性氢对硝酸电化学还原途径选择的影响
IF 42.9
eScience Pub Date : 2025-05-01 DOI: 10.1016/j.esci.2024.100350
Junchao Yu , Zichao Xi , Jinhui Su , Peng Jing , Xuan Xu , Baocang Liu , Yu Wang , Jun Zhang
{"title":"Influence of active hydrogen on pathway selection in electrochemical nitrate reduction","authors":"Junchao Yu ,&nbsp;Zichao Xi ,&nbsp;Jinhui Su ,&nbsp;Peng Jing ,&nbsp;Xuan Xu ,&nbsp;Baocang Liu ,&nbsp;Yu Wang ,&nbsp;Jun Zhang","doi":"10.1016/j.esci.2024.100350","DOIUrl":"10.1016/j.esci.2024.100350","url":null,"abstract":"<div><div>Electrochemical nitrate reduction reaction in alkaline condition involves two reactants, the nitrate (<span><math><mrow><msup><msub><mtext>NO</mtext><mn>3</mn></msub><mo>−</mo></msup></mrow></math></span>) and the water (H<sub>2</sub>O). Although the significance of the active ∗H species produced from the dissociation of H<sub>2</sub>O has been proved, the correlation between the reaction pathways and the ∗H species is often overlooked. Herein, Co(OH)<sub>2</sub>–CoP supported Ru nanoclusters is designed for electrocatalytic nitrate reduction and shows a record-high faradaic efficiency of 99.7% at an ultralow potential of 0.1 ​V versus reversible hydrogen electrode. Experiments and theoretical calculations reveal that in addition to the faster proton transfer kinetics, the reaction pathway is strongly correlated with ∗H supply with the aid of CoP, that is, the direct hydrogenation of ∗NOH instead of deprotonation over Ru sites with the lowest energy barrier is promoted with the moderate production of ∗H species. This work provides new insights into the impact of ∗H species on the thermodynamics and kinetics of electrocatalytic nitrate reduction.</div></div>","PeriodicalId":100489,"journal":{"name":"eScience","volume":"5 3","pages":"Article 100350"},"PeriodicalIF":42.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143931610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Facet-orientation-enhanced thermal transfer for temperature-insensitive and stable p-i-n perovskite solar cells 温度不敏感和稳定的p-i-n钙钛矿太阳能电池的面取向增强热传递
IF 42.9
eScience Pub Date : 2025-05-01 DOI: 10.1016/j.esci.2025.100372
Jiabao Li , Jialong Duan , Chenlong Zhang , Ziting Qi , Ya Liu , Xingxing Duan , Yueji Liu , Jie Dou , Qiyao Guo , Benlin He , Yuanyuan Zhao , Peizhi Yang , Qunwei Tang
{"title":"Facet-orientation-enhanced thermal transfer for temperature-insensitive and stable p-i-n perovskite solar cells","authors":"Jiabao Li ,&nbsp;Jialong Duan ,&nbsp;Chenlong Zhang ,&nbsp;Ziting Qi ,&nbsp;Ya Liu ,&nbsp;Xingxing Duan ,&nbsp;Yueji Liu ,&nbsp;Jie Dou ,&nbsp;Qiyao Guo ,&nbsp;Benlin He ,&nbsp;Yuanyuan Zhao ,&nbsp;Peizhi Yang ,&nbsp;Qunwei Tang","doi":"10.1016/j.esci.2025.100372","DOIUrl":"10.1016/j.esci.2025.100372","url":null,"abstract":"<div><div>Persistent operation inevitably elevates the temperature of perovskite solar cells (PSCs), posing a challenge for maximizing their power output and stability even after effective defect passivation and encapsulation techniques have been implemented. Regulating the thermal conductivity of halide perovskites by additive engineering is now a mainstream strategy for achieving self-cooling devices, but our fundamental understanding of how perovskites with atomic disorder function remains insufficient. This theoretical study unveils the underlying mechanism of facet-dependent thermodynamic properties in mixed-cation perovskites. The results demonstrate that the (100) facet has higher thermal conductivity than the (110) and (111) facets. By carefully controlling the (100) crystallographic orientation through buried and bulk modification, the thermal conductivity of the target perovskite film can be increased from 1.005 to 1.068 ​W ​m<sup>−1</sup> ​K<sup>−1</sup>, which lowers the PSC's equilibrium temperature 5.25 ​°C by accelerating heat transport and dissipation. Consequently, we achieve an inverted PSC with an excellent efficiency of 25.12%, accompanied by a significantly reduced temperature coefficient and better long-term stability: a conservation rate exceeding 90% after aging at 85 ​°C and exposure to persistent light irradiation for 1100 ​h. This work elucidates a previously unidentified outcome of crystal facet engineering: the achievement of thermal management in high-performance PSCs.</div></div>","PeriodicalId":100489,"journal":{"name":"eScience","volume":"5 3","pages":"Article 100372"},"PeriodicalIF":42.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143931612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Game changers: scavenging materials for nonaqueous rechargeable battery applications 游戏改变者:非水可充电电池应用的清除材料
IF 36.6
eScience Pub Date : 2025-04-30 DOI: 10.1016/j.esci.2025.100411
Xing Chen , Huanrui Zhang , Cizhen Luo , Chenhui Gao , Chenghao Sun , Rongxian Wu , Yifan Gong , Pengzhou Mu , Qingfu Wang , Guanglei Cui
{"title":"Game changers: scavenging materials for nonaqueous rechargeable battery applications","authors":"Xing Chen ,&nbsp;Huanrui Zhang ,&nbsp;Cizhen Luo ,&nbsp;Chenhui Gao ,&nbsp;Chenghao Sun ,&nbsp;Rongxian Wu ,&nbsp;Yifan Gong ,&nbsp;Pengzhou Mu ,&nbsp;Qingfu Wang ,&nbsp;Guanglei Cui","doi":"10.1016/j.esci.2025.100411","DOIUrl":"10.1016/j.esci.2025.100411","url":null,"abstract":"<div><div>Many potentially harmful reactive species are either present in nonaqueous rechargeable batteries or generated during their operation, with very negative effects on battery performance and/or safety. Scavenging materials have emerged as game changers, capable of directly eliminating and reducing the negative impact rendered by detrimental reactive species and thereby significantly improving battery performance and/or safety. This discussion introduces the origin of harmful species such as water and hydrofluoric acid, phosphorus pentafluoride, metal dendrites, combustion free radicals, active oxygen species and free radicals, as well as gaseous side products, and their adverse effects on battery performance and/or safety. We then describe and discuss scavenging materials having various structural characteristics and reaction chemistries with detrimental reactive species, as well as their positive role on battery performance and/or safety with respect to prominent nonaqueous rechargeable batteries, including lithium, sodium, zinc, and magnesium batteries. In addition, we outline the limitations of scavenging materials and the analysis techniques used in scavenging chemistry. The paper closes by offering perspectives on future development directions for scavenging chemistries in the realm of nonaqueous rechargeable battery applications. This comprehensive discussion will help to stimulate further advancements in novel scavenging materials for use in nonaqueous rechargeable battery applications.</div></div>","PeriodicalId":100489,"journal":{"name":"eScience","volume":"5 5","pages":"Article 100411"},"PeriodicalIF":36.6,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144887425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advanced implantable energy storage for powering medical devices 为医疗设备供电的先进植入式能量存储
IF 36.6
eScience Pub Date : 2025-04-18 DOI: 10.1016/j.esci.2025.100409
Shasha Wang , Leqian Wei , Fujun Wang , Lu Wang , Jifu Mao
{"title":"Advanced implantable energy storage for powering medical devices","authors":"Shasha Wang ,&nbsp;Leqian Wei ,&nbsp;Fujun Wang ,&nbsp;Lu Wang ,&nbsp;Jifu Mao","doi":"10.1016/j.esci.2025.100409","DOIUrl":"10.1016/j.esci.2025.100409","url":null,"abstract":"<div><div>Implantable electronic medical devices (IEMDs) are revolutionary advancements in healthcare, enabling continuous health monitoring and disease treatments. To support their further development, IESDs that include supercapacitors (SCs) and batteries are now garnering intensive worldwide research efforts. In this review, we discuss and analyze the research advancements and challenges associated with batteries and SCs in the realm of IESDs. First, we summarize the main components of IESDs, including electrodes, electrolytes, and encapsulation materials. Subsequently, we elucidate the main application scenarios of multifunctional energy storage devices, specifically biosafe, stretchable/self-healing, biodegradable, miniaturized, injectable, and edible IESDs. We then summarize research progress to date on the integration of IESDs with energy harvesters and wireless charging. State-of-the-art studies of IESDs categorized by human organ systems are covered in depth, including cardiovascular, nervous, gastrointestinal, musculoskeletal, vision, and systemic recording and stimulation. We close by briefly outlining the challenges and future prospects for IESDs.</div></div>","PeriodicalId":100489,"journal":{"name":"eScience","volume":"5 5","pages":"Article 100409"},"PeriodicalIF":36.6,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144887426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pulsed laser-tuned ruthenium@carbon interface for self-powered hydrogen production via zinc–hydrazine battery coupled hybrid electrolysis 脉冲激光调谐ruthenium@carbon接口,通过锌-肼电池耦合混合电解自供电制氢
IF 36.6
eScience Pub Date : 2025-04-11 DOI: 10.1016/j.esci.2025.100408
Huieun Ahn , Raja Arumugam Senthil , Sieon Jung , Anuj Kumar , Mohd Ubaidullah , Myong Yong Choi
{"title":"Pulsed laser-tuned ruthenium@carbon interface for self-powered hydrogen production via zinc–hydrazine battery coupled hybrid electrolysis","authors":"Huieun Ahn ,&nbsp;Raja Arumugam Senthil ,&nbsp;Sieon Jung ,&nbsp;Anuj Kumar ,&nbsp;Mohd Ubaidullah ,&nbsp;Myong Yong Choi","doi":"10.1016/j.esci.2025.100408","DOIUrl":"10.1016/j.esci.2025.100408","url":null,"abstract":"<div><div>Herein, we report the synthesis of selectively face-centered cubic structured ruthenium nanospheres covered in graphitic carbon (denoted as Ru@C) using an effective and innovative pulsed laser ablation in liquid strategy. The Ru@C‒200 catalyst exhibited a low overpotential of 48 ​mV for hydrogen evolution reaction (HER) and an ultralow oxidation potential of −8 ​mV (vs. reversible hydrogen electrode) for hydrazine oxidation reaction (HzOR) at 10 ​mA ​cm<sup>−2</sup>, maintaining long-term durability for over 100 ​h, demonstrating its dual-functional activity. This performance was attributed to the robust synergistic coupling between the Ru core and C shell, as confirmed by <em>in situ</em> electrochemical studies and density functional theory investigations. As a result, overall hydrazine splitting (OHzS) in the Ru@C‒200||Ru@C‒200 system requires only low cell voltages of 0.11 and 0.70 ​V at 10 and 100 ​mA ​cm<sup>−2</sup>, respectively. Moreover, a rechargeable zinc–hydrazine (Zn–Hz) battery, fabricated using the Ru@C‒200 catalyst as the cathode and Zn foil as the anode, exhibited a high energy efficiency of 90% and efficient H<sub>2</sub> production, validating its remarkable ability for practical applications. Notably, coupling Zn–Hz battery with OHzS system encourages self-powered H<sub>2</sub> production. This study provides potential guidance for engineering robust electrocatalysts for large-scale H<sub>2</sub> production while purifying hydrazine-containing industrial sewage.</div></div>","PeriodicalId":100489,"journal":{"name":"eScience","volume":"5 5","pages":"Article 100408"},"PeriodicalIF":36.6,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144890862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bridging graphene for films with superior mechanical and electrical performance for electromagnetic interference shielding 桥接石墨烯薄膜具有优越的机械和电气性能,用于电磁干扰屏蔽
IF 36.6
eScience Pub Date : 2025-04-10 DOI: 10.1016/j.esci.2025.100407
Jiawen Zhang , Tianqi Xu , Ling Ding , Jinpeng Ji , Jianxin Geng , Huynh Thien Ngo , Ke Zhou , Xiankai Chen , Fengxia Geng
{"title":"Bridging graphene for films with superior mechanical and electrical performance for electromagnetic interference shielding","authors":"Jiawen Zhang ,&nbsp;Tianqi Xu ,&nbsp;Ling Ding ,&nbsp;Jinpeng Ji ,&nbsp;Jianxin Geng ,&nbsp;Huynh Thien Ngo ,&nbsp;Ke Zhou ,&nbsp;Xiankai Chen ,&nbsp;Fengxia Geng","doi":"10.1016/j.esci.2025.100407","DOIUrl":"10.1016/j.esci.2025.100407","url":null,"abstract":"<div><div>Macroscopic films assembled from graphene sheets could be ideal for lightweight and flexible electromagnetic interference shielding applications if the excellent mechanical strength and electrical conductivity of individual graphene can be replicated on the macroscale. However, in practice, a large performance gap remains between individual graphene and graphene-based macroscopic films. In this work, we report macroscopic graphene-based films with high mechanical strength and electrical conductivity (1.70 ​± ​0.05 ​GPa and 1170 ​± ​60 ​S ​cm<sup>−1</sup>) obtained by introducing a covalent conjugating aromatic amide group to bridge graphene edges. The bridging was achieved by reacting a doctor-bladed GO film with 1,2,4,5-benzenetetraamine hydrochloride followed by chemical reduction. Impact load tests demonstrated efficient stress transfer in these films, with stress spread uniformly well beyond the impact area. This is in sharp contrast to previously reported films, which showed the immediate initiation of cracks followed by crack extension in random directions. Our conducting films achieved a shielding effectiveness of 114.1 ​dB for a 120 ​μm thick film, and the specific shielding effectiveness was calculated to be 67.9 ​dB ​cm<sup>3</sup> g<sup>−1</sup>, which significantly exceeds those of currently known shielding materials as well as graphene films synthesized under similar conditions without thermal annealing. Owing to the graphene films’ mechanical robustness, the shielding performance was maintained even after repeated folding.</div></div>","PeriodicalId":100489,"journal":{"name":"eScience","volume":"5 5","pages":"Article 100407"},"PeriodicalIF":36.6,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144890863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Li-rich oxide micro-bricks with exposed {010} planes to construct ultrahigh-compaction hierarchical cathodes for Li-ion batteries 具有暴露{010}平面的富锂氧化物微砖用于构建锂离子电池的超高压实分层阴极
IF 36.6
eScience Pub Date : 2025-04-03 DOI: 10.1016/j.esci.2025.100405
Yongjian Li , Tong Sun , Chenxing Yang , Yuefeng Su , Cai Liu , Xinyu Zhu , Yihong Wang , Siyuan Ma , Xinyu Wang , Yizhi Zhai , Wenlong Kang , Lai Chen , Meng Wang , Liang Zhang , Bin Wang , Qing Huang , Yibiao Guan , Feng Wu , Ning Li
{"title":"Li-rich oxide micro-bricks with exposed {010} planes to construct ultrahigh-compaction hierarchical cathodes for Li-ion batteries","authors":"Yongjian Li ,&nbsp;Tong Sun ,&nbsp;Chenxing Yang ,&nbsp;Yuefeng Su ,&nbsp;Cai Liu ,&nbsp;Xinyu Zhu ,&nbsp;Yihong Wang ,&nbsp;Siyuan Ma ,&nbsp;Xinyu Wang ,&nbsp;Yizhi Zhai ,&nbsp;Wenlong Kang ,&nbsp;Lai Chen ,&nbsp;Meng Wang ,&nbsp;Liang Zhang ,&nbsp;Bin Wang ,&nbsp;Qing Huang ,&nbsp;Yibiao Guan ,&nbsp;Feng Wu ,&nbsp;Ning Li","doi":"10.1016/j.esci.2025.100405","DOIUrl":"10.1016/j.esci.2025.100405","url":null,"abstract":"<div><div>Although lithium-rich manganese-based (LRM) cathode materials have high capacity (&gt; ​250 ​mAh ​g<sup>−1</sup>) due to their multi-electron redox mechanisms and offer cost advantages due to their high Mn content, challenges remain before they can achieve commercialization as replacements for lithium cobalt oxides which have high volumetric energy density. Here, we construct a hierarchically structured LRM cathode, featuring primary micro-bricks and abundant exposure of lithium-ion active transport facets ({010} planes). Benefiting from these densely packed bricks and rapid lithium-ion active planes, the hierarchical material achieves an optimal compaction density of 3.4 ​g ​cm<sup>−3</sup> and an ultrahigh volumetric energy density of 3431.0 ​Wh ​L<sup>−1</sup>, which is the highest performance level to date. Advanced characterizations, including hard X-ray absorption spectra and wide-angle X-ray scattering spectra, combined with density functional theory calculations, demonstrate that the hierarchical material shows a highly reversible charge compensation process and low-strain structural evolution. In addition, when the material has appropriate Li/Ni intermixing, it is not prone to shearing or sliding along the two-dimensional lithium-ion diffusion planes, which promotes robust architectural stability under high-pressure calendering and long-term cycling. This work should promote the development of advanced cathode materials for rechargeable batteries with high volumetric energy density.</div></div>","PeriodicalId":100489,"journal":{"name":"eScience","volume":"5 5","pages":"Article 100405"},"PeriodicalIF":36.6,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144890910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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