{"title":"Multiscale structural NaTi2(PO4)3 anode for sodium-ion batteries with long cycle, high areal capacity, and wide operation temperature","authors":"Guobao Xu, Liyue Yang, Zhihao Yan, Zhikai Huang, Xue Li, Gencai Guo, Ye Tian, Liwen Yang, Jianyu Huang, Yaru Liang, Shulei Chou","doi":"10.1002/cey2.552","DOIUrl":"10.1002/cey2.552","url":null,"abstract":"<p>Though plenty of research has been conducted to improve the low intrinsic electronic conductivity of NASICON-structured NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> (NTP), realizing sodium-ion batteries with high areal/volumetric capacity still remains a formidable challenge. Herein, a multiscale design from anode material to electrode structure is proposed to obtain a gadolinium-ion-doped and carbon-coated NTP composite electrode (NTP-Gd-C), in which gadolinium ion doping, oxygen vacancy, optimized structure, N-doped carbon coating, and bridging on the three-dimensional network are simultaneously achieved. In the whole electrode, the excellent hierarchical electronic/ionic conductivity and structural stability are simultaneously improved via the synergistic optimization of NTP-Gd-C. As a result, excellent electrochemical performances of NTP-Gd-C electrode with a high areal/volumetric capacity of 1.0 mAh cm<sup>−2</sup>/142.8 mAh cm<sup>−3</sup>, high rate capability (58.3 mAh g<sup>−1</sup> at 200 C), long cycle life (ultralow capacity fading of 0.004% per cycle under 10,000 cycles), and wide-temperature electrochemical performances (97.0 mAh g<sup>−1</sup> at 2 C under −20°C) are achieved. Moreover, the NTP-Gd-C//Na<sub>3</sub>V<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>/C full cell also delivers an excellent rate capacity of 42.0 mAh g<sup>−1</sup> at 200 C and long-term high-capacity retention of 66.2% after 4000 cycles at 20 C.</p>","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"6 10","pages":""},"PeriodicalIF":19.5,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.552","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141355983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Electrospun carbon nanofiber-supported V2O3 with enriched oxygen vacancies as a free-standing high-rate anode for an all-vanadium-based full battery","authors":"Qi Lai, Bincen Yin, Yu Dou, Qing Zhang, Yunhai Zhu, Yingkui Yang","doi":"10.1002/cey2.517","DOIUrl":"10.1002/cey2.517","url":null,"abstract":"<p>Synergistic regulation of hierarchical nanostructures and defect engineering is effective in accelerating electron and ion transport for metal oxide electrodes. Herein, carbon nanofiber-supported V<sub>2</sub>O<sub>3</sub> with enriched oxygen vacancies (OV-V<sub>2</sub>O<sub>3</sub>@CNF) was fabricated using the facile electrospinning method, followed by thermal reduction. Differing from the traditional particles embedded within carbon nanofibers or irregularly distributed between carbon nanofibers, the free-standing OV-V<sub>2</sub>O<sub>3</sub>@CNF allows for V<sub>2</sub>O<sub>3</sub> nanosheets to grow vertically on one-dimensional (1D) carbon nanofibers, enabling abundant active sites, shortened ion diffusion pathway, continuous electron transport, and robust structural stability. Meanwhile, density functional theory calculations confirmed that the oxygen vacancies can promote intrinsic electron conductivity and reduce ion diffusion energy barrier. Consequently, the OV-V<sub>2</sub>O<sub>3</sub>@CNF anode delivers a large reversible capacity of 812 mAh g<sup>−1</sup> at 0.1 A g<sup>−1</sup>, superior rate capability (405 mAh g<sup>−1</sup> at 5 A g<sup>−1</sup>), and long cycle life (378 mAh g<sup>−1</sup> at 5 A g<sup>−1</sup> after 1000 cycles). Moreover, an all-vanadium full battery (V<sub>2</sub>O<sub>5</sub>//OV-V<sub>2</sub>O<sub>3</sub>@CNF) was assembled using an OV-V<sub>2</sub>O<sub>3</sub>@CNF anode and a V<sub>2</sub>O<sub>5</sub> cathode, which outputs a working voltage of 2.5 V with high energy density and power density, suggesting promising practical application. This work offers fresh perspectives on constructing hierarchical 1D nanofiber electrodes by combining defect engineering and electrospinning technology.</p>","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"6 9","pages":""},"PeriodicalIF":19.5,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.517","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141374045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Superior stable high-voltage LiCoO2 enabled by modification with a layer of lithiated polyvinylidene fluoride-derived LiF","authors":"Qihang Ding, Zewen Jiang, Kean Chen, Hui Li, Jingzhe Shi, Xinping Ai, Dingguo Xia","doi":"10.1002/cey2.602","DOIUrl":"10.1002/cey2.602","url":null,"abstract":"<p>High-voltage LiCoO<sub>2</sub> (LCO) can deliver a high capacity and therefore significantly boost the energy density of Li-ion batteries (LIBs). However, its cyclability is still a major problem in terms of commercial applications. Herein, we propose a simple but effective method to greatly improve the high-voltage cyclability of an LCO cathode by constructing a surface LiF modification layer via pyrolysis of the lithiated polyvinylidene fluoride (Li-PVDF) coating under air atmosphere. Benefitting from the good film-forming and strong adhesion ability of Li-PVDF, the thus-obtained LiF layer is uniform, dense, and conformal; therefore, it is capable of acting as a barrier layer to effectively protect the LCO surface from direct exposure to the electrolyte, thus suppressing the interfacial side reactions and surface structure deterioration. Consequently, the high-voltage stability of the LCO electrode is significantly enhanced. Under a high charge cutoff voltage of 4.6 V, the LiF-modified LCO (LiF@LCO) cathode demonstrates a high capacity of 201 mA h g<sup>−1</sup> at 0.1 C and a stable cycling performance at 0.5 C with 80.5% capacity retention after 700 cycles, outperforming the vast majority of high-voltage LCO cathodes reported so far.</p>","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"6 10","pages":""},"PeriodicalIF":19.5,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.602","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141382728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cover Image, Volume 6, Number 5, May 2024","authors":"Hongyu Gong, Guanliang Sun, Wenhua Shi, Dongwei Li, Xiangjun Zheng, Huan Shi, Xiu Liang, Ruizhi Yang, Changzhou Yuan","doi":"10.1002/cey2.606","DOIUrl":"https://doi.org/10.1002/cey2.606","url":null,"abstract":"<p><b><i>Front cover image</i></b>: Enhancing both the number of active sites available and the intrinsic activity of Co-based oxygen evolution reaction (OER) electrocatalysts simultaneously is a desirable goal. In the article number CEY2432, Yuan et al. reported a ZIF-67-derived hierarchical porous cobalt sulfide decorated by Au nanoparticles (denoted as HP-Au@Co<sub>x</sub>S<sub>y</sub>@ZIF-67) hybrid. The novel three-dimensional hierarchical structure significantly enlarges the three-phase interfaces, accelerating the mass transfer and exposing the active centers. Meanwhile, the electronic structure of Co is modulated by Au through charge transfer, wherein Au and NaBH4 reductant result in an interesting “competition effect” to regulate the relative ratio of Co<sup>2+</sup>/Co<sup>3+</sup>. Consequently, HP-Au@Co<sub>x</sub>S<sub>y</sub>@ZIF-67 displayed excellent OER performance, enabling efficient water splitting and Zn–air battery application.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"6 5","pages":""},"PeriodicalIF":20.5,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.606","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141164988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Superelastic wood-based nanogenerators magnifying the piezoelectric effect for sustainable energy conversion","authors":"Tong Wu, Yun Lu, Xinglin Tao, Pan Chen, Yongyue Zhang, Bohua Ren, Feifan Xie, Xia Yu, Xinyi Zhou, Dongjiang Yang, Jin Sun, Xiangyu Chen","doi":"10.1002/cey2.561","DOIUrl":"https://doi.org/10.1002/cey2.561","url":null,"abstract":"In the quest for sustainable energy materials, wood is discovered to be a potential piezoelectric material. However, the rigidity, poor stability, and low piezoelectric properties of wood impede its development. Here, we obtained a superelastic roasted wood nanogenerator (RW-NG) by unraveling ray tissues through a sustainable roasting strategy. The increased compressibility of roasted wood intensifies the deformation of cellulose microfibrils, significantly enhancing the piezoelectric effect in wood. Roasted wood (15 × 15 × 15 mm<sup>3</sup>, longitudinal × radial × tangential) can generate a voltage and current outputs of 1.4 V and 14.5 nA, respectively, which are more than 70 times that of natural wood. The wood sample can recover 90% of its shape after 5000 compressions at 65% strain, exhibiting excellent elasticity and stability. Importantly, roasted wood does not add any toxic substances and can be safely applied on the human skin as a self-powered sensor for detecting body movements. Moreover, it can also be assembled into self-powered wooden floors for energy harvesting. These indicate that roasted wood has great potential for sustainable sensing and energy conversion.","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"50 1","pages":""},"PeriodicalIF":20.5,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141191714","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}
Carbon EnergyPub Date : 2024-05-29DOI: 10.1002/cey2.607
Mayokun Olutogun, Anna Vanderbruggen, Christoph Frey, Martin Rudolph, Dominic Bresser, Stefano Passerini
{"title":"Back Cover Image, Volume 6, Number 5, May 2024","authors":"Mayokun Olutogun, Anna Vanderbruggen, Christoph Frey, Martin Rudolph, Dominic Bresser, Stefano Passerini","doi":"10.1002/cey2.607","DOIUrl":"https://doi.org/10.1002/cey2.607","url":null,"abstract":"<p><b><i>Back cover image</i></b>: Graphite recycling from lithium-ion batteries stands out as a pivotal solution to address the increasing demand for raw materials, in particular for electric vehicles. Olutogun et al. have developed a froth flotation-based process to effectively recycle graphite, as detailed in the article CEY2.483. The study highlights that the structure and morphology of the recycled graphite remain essentially unchanged, and the material shows an excellent cycling stability in newly assembled graphite||NMC<sub>532</sub> lithium-ion cells, with a capacity retention of about 80% after 1000 cycles, which is comparable to the performance of pristine commercial graphite.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"6 5","pages":""},"PeriodicalIF":20.5,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.607","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141164989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Carbon EnergyPub Date : 2024-05-28DOI: 10.1002/cey2.562
Zhijian Du, La Li, Guozhen Shen
{"title":"Proton-conducting hydrogel electrolytes with tight contact to binder-free MXene electrodes for high-performance thermally chargeable supercapacitor","authors":"Zhijian Du, La Li, Guozhen Shen","doi":"10.1002/cey2.562","DOIUrl":"https://doi.org/10.1002/cey2.562","url":null,"abstract":"Thermally chargeable supercapacitors (TCSCs) have offered exceptional energy-converting efficiency for absorbing human epidermal heat and generating and storing electrical energy, which then realize continuous power supply to electronic devices, such as sensors and wearable electronic products, in a wide range of practical significance. Here, we proposed a flexible TCSC by attaching binder-free Ti<sub>3</sub>C<sub>2</sub>T<sub><i>x</i></sub> MXene@PPy electrodes on both ends of the H<sub>3</sub>PO<sub>4</sub>@P(AM-co-AA-co-AYP K<sup>+</sup>) hydrogel electrolyte, which exhibits a large thermal power of 35.2 mV K<sup>−1</sup> at 50% relative humidity and maximum figure of merit of 2.1. The high performances of the fabricated devices can be attributed to the tunable electrical, thermodynamic, thermoelectric, and mechanical properties of the hydrogel electrolyte by adjusting the acid content and the proportion of zwitterionic compound AYP K<sup>+</sup> in the hydrogel, and the high photothermal conversion efficiency and electrochemical performance of the electrodes. Moreover, the stable and outstanding thermofvoltage output (∼200 mV) under different time scenarios of the TCSC makes it possible to drive a strain sensor, accomplishing the objectives of a human activity monitor.","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"43 1","pages":""},"PeriodicalIF":20.5,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141169982","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}
{"title":"Joint cationic and anionic redox chemistry in a vanadium oxide cathode for zinc batteries achieving high energy density","authors":"Wenfeng Wang, Lu Zhang, Zeang Duan, Ruyue Li, Jiajin Zhao, Longteng Tang, Yiming Sui, Yadi Qi, Shumin Han, Chong Fang, Desong Wang, Xiulei Ji","doi":"10.1002/cey2.577","DOIUrl":"https://doi.org/10.1002/cey2.577","url":null,"abstract":"Rechargeable aqueous zinc batteries are promising for large-scale energy storage due to their low cost and high safety; however, their energy density has reached the ceiling based on conventional cathodes with a single cationic redox reaction mechanism. Herein, a highly reversible cathode of typical layered vanadium oxide is reported, which operates on both the cationic redox couple of V<sup>5+</sup>/V<sup>3+</sup> accompanied by the Zn<sup>2+</sup> storage and the anionic O<sup>–</sup>/O<sup>2–</sup> redox couple by anion hosting in an aqueous deep eutectic solvent electrolyte. The reversible oxygen redox delivers an additional capacity of ∼100 mAh g<sup>–1</sup> at an operating voltage of ∼1.80 V, which increases the energy density of the cathode by ∼36%, endowing the cathode system a record high energy density of ∼506 Wh kg<sup>–1</sup>. The findings highlight new opportunities for the design of high-energy zinc batteries with both Zn<sup>2+</sup> and anions as charge carriers.","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"27 1","pages":""},"PeriodicalIF":20.5,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141169981","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}
{"title":"Research progress on electronic and active site engineering of cobalt-based electrocatalysts for oxygen evolution reaction","authors":"Chuansheng He, Linlin Yang, Jia Wang, Tingting Wang, Jian Ju, Yizhong Lu, Wei Chen","doi":"10.1002/cey2.573","DOIUrl":"10.1002/cey2.573","url":null,"abstract":"<p>Electrocatalytic water splitting has been identified as a potential candidate for producing clean hydrogen energy with zero carbon emission. However, the sluggish kinetics of oxygen evolution reaction on the anode side of the water-splitting device significantly hinders its practical applications. Generally, the efficiency of oxygen evolution processes depends greatly on the availability of cost-effective catalysts with high activity and selectivity. In recent years, extensive theoretical and experimental studies have demonstrated that cobalt (Co)-based nanomaterials, especially low-dimensional Co-based nanomaterials with a huge specific surface area and abundant unsaturated active sites, have emerged as versatile electrocatalysts for oxygen evolution reactions, and thus, great progress has been made in the rational design and synthesis of Co-based nanomaterials for electrocatalytic oxygen evolution reactions. Considering the remarkable progress in this area, in this timely review, we highlight the most recent developments in Co-based nanomaterials relating to their dimensional control, defect regulation (conductivity), electronic structure regulation, and so forth. Furthermore, a brief conclusion about recent progress achieved in oxygen evolution on Co-based nanomaterials, as well as an outlook on future research challenges, is given.</p>","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"6 8","pages":""},"PeriodicalIF":19.5,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.573","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141169980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Photothermal-boosted flexible rechargeable zinc-air battery based on Ni-doped Mn3O4 with excellent low-temperature adaptability","authors":"Wengai Guo, Fan Gu, Qilin Chen, Kexuan Fu, Yuqing Zhong, Jing-Jing Lv, Shuang Pan, Yihuang Chen","doi":"10.1002/cey2.567","DOIUrl":"https://doi.org/10.1002/cey2.567","url":null,"abstract":"As a promising flexible energy source for next-generation emerging electronic devices, the temperature adaptability and low-temperature performance retention of flexible zinc-air batteries (ZABs) remain a great challenge for their practical application. Herein, we report photothermal-promoted aqueous and flexible ZABs with enhanced performance under a wide temperature range via using Ni-doped Mn<sub>3</sub>O<sub>4</sub>/N-doped reduced graphene oxide (denoted as Ni-Mn<sub>3</sub>O<sub>4</sub>/N-rGO) nanohybrids as bifunctional electrocatalysts. Upon being exposed to near-infrared light, the Ni-Mn<sub>3</sub>O<sub>4</sub>/N-rGO exhibited a powerful photothermal effect, resulting in localized and immediate heating of the electrode. Such effects led to increased active sites, improved electrical conductivity, enhanced release of bubbles, and promoted surface reconstruction of the electrode catalyst as corroborated by simulation and <i>operando</i> Raman. Consequently, the catalytic performance was boosted, manifesting a superior activity indicator Δ<i>E</i> of 0.685 V with excellent durability. As expected, the corresponding photothermal-assisted rechargeable ZABs possessed an excellent maximum power density (e.g., 78.76 mW cm<sup>−2</sup> at −10°C), superb cycling stability (e.g., over 430 cycles at −10°C), and excellent flexibility from 25°C to subzero temperature. Our work opens up new possibilities for the development of all-climate flexible electronic devices.","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"130 1","pages":""},"PeriodicalIF":20.5,"publicationDate":"2024-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141169977","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}