Journal of Materials Chemistry A最新文献

A lubricated and antibacterial hydrogel coating based on polyelectrolyte adhesion for medical catheters

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2025-01-25 DOI: 10.1039/d4ta07212j

Shaohai Li, Pengcheng Yu, Fengmei Dong, Jiawei Zhang, Tianyu Wang, Peipei Zhang, Guanghui Gao, Yang Gao, Yuanrui Wang

{"title":"A lubricated and antibacterial hydrogel coating based on polyelectrolyte adhesion for medical catheters","authors":"Shaohai Li, Pengcheng Yu, Fengmei Dong, Jiawei Zhang, Tianyu Wang, Peipei Zhang, Guanghui Gao, Yang Gao, Yuanrui Wang","doi":"10.1039/d4ta07212j","DOIUrl":"https://doi.org/10.1039/d4ta07212j","url":null,"abstract":"Surface modification of silicone tubing could significantly improve its medical applications. Nevertheless, customizing the surface of silicone tubing for better interfacial adhesion and multifunctionality through simple methods is still a significant challenge. Here, in-situ growth of hydrogel coatings with antimicrobial and lubricating functions on silicone tubes was achieved by the introduction of polyelectrolyte. The interfacial adhesion between the substrate and the hydrogel was achieved by electrostatic interactions as well as hydrogen bonding. The flexibility of the hydrogel coating was provided by hydrogen bonding formed between polyvinylpyrrolidone (PVP) chains and poly(acrylic acid-acrylamide) (P(AAc-AAm)) chains. At the same time, the lactam group contained in the molecular structure of PVP and the amide group contained in the molecular structure of P(AAc-AAm) endowed the hydrogel coating with good hydrophilicity (WCA≈26.7°) and excellent lubricating properties (COF≈0.129). Furthermore, the synergistic effect of PEI and PHMB provided the hydrogel with efficient antimicrobial properties (the OD600 value of E. coli decreased by 77.2% and that of S. aureus decreased by 85.2%). This work provides a new idea for the design of hydrogel coating for surface modification of catheters.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"58 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143031234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Electronic structure exquisite restructuring of cobalt phosphide via rationally controlling iron induction for water splitting at industrial condition

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2025-01-24 DOI: 10.1039/d4ta08129c

Ziting Li, Peng Zhou, Mingyan Zhang, Haochen Zhang, Yongyi Zhang, Dan Han, Xiaoshuang Chen

{"title":"Electronic structure exquisite restructuring of cobalt phosphide via rationally controlling iron induction for water splitting at industrial condition","authors":"Ziting Li, Peng Zhou, Mingyan Zhang, Haochen Zhang, Yongyi Zhang, Dan Han, Xiaoshuang Chen","doi":"10.1039/d4ta08129c","DOIUrl":"https://doi.org/10.1039/d4ta08129c","url":null,"abstract":"The rational design of high-efficiency bifunctional electrocatalysts for industrial water splitting and the understanding of intricate catalytic mechanisms remain a huge challenge. Herein, the ultrathin iron-dopedcobalt phosphide (Fe-CoP) nanosheets are prepared by hydrothermal, oxidation and phosphating path. The incorporation of Fe in CoP matrix greatly ameliorates the electronic structure and charge transfer ability of targeted product. In addition, the Fe-CoP substance with an uniquely ultrathin nanosheet architecture can also increase more active sites and promote electron transfer, leading to improved oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) activities. As anticipated, the Fe-CoP catalyst displays outstanding bifunctional properties with the overpotentials of only 249 and 78.5 mV at 10 mA cm-2, and the Tafel slopes of 43.1 and 60.7 mV dec-1 for OER and HER, respectively. Simultaneously, the electrolyzer assembled with Fe-CoP as two electrodes just requires 1.37 V to reach 10 mA cm-2 for water splitting along with good stability at industrial environment (60 °C, 6.0 M KOH). The density functional theory (DFT) calculations disclose that the incorporation of Fe into CoP can efficaciously optimize the electronic structure to accelerate the adsorption and desorption of *H, and the formation of *OOH crucial intermediate, consequently yielding excellently electrocatalytic performance. Our findings provide a facile and feasible approach to design highly active catalysts for factually electrolytic water application.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"22 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143027116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Stabilization of zinc metal electrodes by solvation structure modulation of Zn(NTf2)2 electrolyte additives

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2025-01-24 DOI: 10.1039/d4ta09254f

Chunhui Peng, Yuqian Li, Huanrong Liu, Wenju Wang

{"title":"Stabilization of zinc metal electrodes by solvation structure modulation of Zn(NTf2)2 electrolyte additives","authors":"Chunhui Peng, Yuqian Li, Huanrong Liu, Wenju Wang","doi":"10.1039/d4ta09254f","DOIUrl":"https://doi.org/10.1039/d4ta09254f","url":null,"abstract":"Currently, aqueous Zn-ion batteries (ZIBs) are consideredas one of the most promising sustainable energy storage devices. However, issues such as dendrite growth of Zn and the occurrence of side reactions constrain their development. This study addresses these challenges by introducing a novel electrolyte additive, Zn(NTf2)2, into 1 M ZnSO4, resulting in enhanced specific capacity and improved cycling stability. The mechanism of Zn(NTf2)2 is investigated using techniques such as molecular dynamics simulations, molecular orbital theory analysis, X-ray photoelectron spectroscopy, and in situ deposition experiments. The additive Zn(NTf2)2 functions by altering the solvation structure of Zn2+, disrupting the hydrogen bonding network among water molecules and reduces the activity of water molecules, thereby suppressing side reactions and controlling dendrite growth. Consequently, the addition of Zn(NTf2)2 improves the dendrite growth problem, extends the cycle stability, and enhances the specific capacity of the battery. The Zn symmetric cells with 3% Zn(NTf2)2 added can demonstrate stable cycling for more than 2000h and the full cell with 3% Zn(NTf2)2 maintains a discharge capacity of around 100 mAh·g−1 after 160 cycles. This research provides a strategy for improving the electrochemical performance of aqueous Zn2+ batteries through electrolyte additives.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"19 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143027118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Morphology and doping engineering of sulfur-doped g-C3N4 hollow nanovesicles for boosting photocatalytic hydrogen production

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2025-01-24 DOI: 10.1039/d4ta09249j

Zifan Zhang, Changhui Song, Jipeng Fan, Zhijie Fang, Haitao Wang, Jing Zou

{"title":"Morphology and doping engineering of sulfur-doped g-C3N4 hollow nanovesicles for boosting photocatalytic hydrogen production","authors":"Zifan Zhang, Changhui Song, Jipeng Fan, Zhijie Fang, Haitao Wang, Jing Zou","doi":"10.1039/d4ta09249j","DOIUrl":"https://doi.org/10.1039/d4ta09249j","url":null,"abstract":"The rational design and directional synthesis of desirable structural heteroatom-doped graphitic carbon nitride (CN) is of great significance for achieving efficient photocatalytic hydrogen evolution (HER) performance, but challenges remain. Herein, we have successfully developed an attractive sulfur-doped hollow CN nanovesicle (HV-SCN) photocatalyst via supramolecular self-assembly strategy. The engineered HV-SCN not only possesses large specific surface area, strong hydrophilicity and high light absorption capacity, but also displays efficient photogenerated carrier excitation and transfer efficiency. Consequently, the resultant HV-SCN achieves an extremely high H2 generation rate of 9.49 mmol h-1 g-1. Subsequent density functional theory (DFT) calculations and band configuration results confirm that S-doping induces band gap shortening and favorable hydrogen adsorption, which confers enhanced photocatalytic HER performance of HV-SCN. Furthermore, the catalytic mechanism and carrier migration dynamics are confirmed by in situ X-ray photoelectron and femtosecond transient absorption spectroscopy (fs-TAS). This study provides valuable experimental and theoretical references for the rational design and directional preparation of high-performance catalysts.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"52 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143027115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Artificial Interface Engineering to Achieve High-performance Garnet-based Solid-State Lithium Metal Batteries.

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2025-01-24 DOI: 10.1039/d4ta08187k

Yingyi Yuan, Qiwei Liu, Chuang Ji, Zhifeng Xiang, Shihao Feng, Xunhui Xiong

{"title":"Artificial Interface Engineering to Achieve High-performance Garnet-based Solid-State Lithium Metal Batteries.","authors":"Yingyi Yuan, Qiwei Liu, Chuang Ji, Zhifeng Xiang, Shihao Feng, Xunhui Xiong","doi":"10.1039/d4ta08187k","DOIUrl":"https://doi.org/10.1039/d4ta08187k","url":null,"abstract":"Garnet-based solid-state lithium metal batteries (SSMLBs) are considered as candidate power sources for electric vehicles and large-scale energy storage systems due to their intrinsic safety, high energy density and wide range of operating temperature. However, the poor wettability at the interface of garnet/Li metal anode, high interfacial impedance, and the uncontrollable growth of Li dendrites during the repeated cycling processes limit the practical applications of SSMLBs. In this work, SnCl2 layer has been prepared on surface of Li6.5La3Zr1.5Ta0.5O12 (LLZTO) solid-state electrolyte by a convenient wet-chemistry method. Then the Li-Sn/LiCl hybrid ionic/electronic conducting layer can be in-situ formed through the conversion reaction between molten Li and SnCl2. This hybrid conducting layer can significantly reduce the interfacial impedance, ensure the close contact between the Li and garnet interface, and inhibit the growth of Li dendrites. As a result, the interfacial impedance was reduced from 293.9 Ω to 9.4 Ω, and the critical current density (CCD) of LLZTO was increased from 0.5 mA cm-2 to 0.8 mA cm-2. Besides, the Li/Li symmetric cell can work stably over 6000 h at a current density of 0.2 mA cm-2 without the formation of dendritic Li growth and interfacial contact failure. Moreover, the hybrid conducting layer can enable the full cell assembled with LiFePO4 cathode to deliver a greatly improved long-term cycle stability and rate performance. This simple wet-chemistry strategy as well as the excellent electrochemical performances in this work demonstrate a potential strategy to develop high-performance garnet-based solid-state lithium metal batteries.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"98 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143027117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Symmetric gradient structure enables robust CNF/FeCo/LM composite film with excellent electromagnetic interference shielding and electrical insulation

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2025-01-24 DOI: 10.1039/d4ta08680e

Song Yang, Maofei Du, Ying Zhang, Yuhan Wang, Ting Gu, Fei Liu

{"title":"Symmetric gradient structure enables robust CNF/FeCo/LM composite film with excellent electromagnetic interference shielding and electrical insulation","authors":"Song Yang, Maofei Du, Ying Zhang, Yuhan Wang, Ting Gu, Fei Liu","doi":"10.1039/d4ta08680e","DOIUrl":"https://doi.org/10.1039/d4ta08680e","url":null,"abstract":"The exceptional performance of electromagnetic interference (EMI) shielding materials often stems from their high conductivity. However, EMI materials with high electrical conductivity pose a risk of current leakage, which is an issue that cannot be ignored. Herein, a unique electrical insulation cellulose nanofibers/FeCo/liquid metal (CNF/FeCo/LM) composite film with a symmetric gradient structure was fabricated using the vacuum-assisted filtration and cold compression techniques. In the CNF/FeCo/LM composite film, the CNF/FeCo serves as the electromagnetic wave (EMW) absorption layer and electrical insulation protective layer, the CNF/FeCo/LM functions as the EMW transmission layer, and the LM acts as the middle EMI shielding enhancement layer. The prepared symmetric gradient CNF/FeCo/LM composite film exhibits a satisfactory EMI shielding effectiveness of 39.32 dB at a thickness of only 0.17 mm, with 20 wt% of LM and 20 wt% FeCo. This performance is attributed to the symmetric gradient “absorption-weak reflection-strong reflection-reabsorption” mechanism. Furthermore, this composite film also exhibits excellent in-plane thermal conductivity of 4.85 W m-1·K-1 and outstanding volume resistance of 5.58 × 1011 Ω·cm. The CNF/FeCo/LM composite film achieves a tensile strength of 56.28 MPa, an elongation at break of 21.47%, and a toughness of 7.2 MJ m-3 due to the interaction between CNF and LM, along with the zigzag fractur path that develops within the interlayer, which facilitates stress transfer and energy absorption. This work offers a viable approach to designing high EMI shielding materials with electrical insulation, which is crucial for advancing the use of CNF matrix composites in electronic packaging.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"38 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143027119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Eliminating water molecules through tailored crystal orientation to enhance the lithium storage capacity of iron oxalate

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2025-01-24 DOI: 10.1039/d4ta06032f

Geng Gao, Jian Tang, Shaoze Zhang, Bo Jin, Yajie Yuan, Yixing Zeng, Yanqiu Xu, Qing Zhao, Keyu Zhang, Junxian Hu, Yin Li, Yaochun Yao

{"title":"Eliminating water molecules through tailored crystal orientation to enhance the lithium storage capacity of iron oxalate","authors":"Geng Gao, Jian Tang, Shaoze Zhang, Bo Jin, Yajie Yuan, Yixing Zeng, Yanqiu Xu, Qing Zhao, Keyu Zhang, Junxian Hu, Yin Li, Yaochun Yao","doi":"10.1039/d4ta06032f","DOIUrl":"https://doi.org/10.1039/d4ta06032f","url":null,"abstract":"Iron oxalate, a coordination polymer known for its sustainability, is a potential candidate for high-capacity and high-rate anode materials for lithium-ion batteries. However, the inherent crystal water in iron oxalate significantly hampers its electrochemical activity, leading to a reduced lithium storage capability. Therefore, the removal of crystal water is essential for electrochemical performance enhancement. Here, we harnessed the differing binding strengths of water molecules between chains on various crystal planes of iron oxalate dihydrate, using dihydrate crystal plane regulation strategies to enhance the removal of water molecules. Specifically, by introducing ethanol molecules, which have hydroxyl oxygen characteristics similar to those of water molecules, we modified the surface energy of the original crystal planes resulting in the exposure of (202) crystal planes in iron oxalate dihydrate materials. This crystal plane regulation effectively enhances the release kinetics of crystal water. Furthermore, due to the optimal dehydration capability of the (202) facets and the enhanced capacity of lithium-ion diffusion, the dehydrated FeC2O4-12 h nanorods with exposed (202) facets exhibited an impressive discharge capacity of 850 mA h g−1 at a high rate of 5 A g−1. This work not only proposes a strategy for removing crystal water from electrode materials but also introduces a crystal facet regulation method, offering new avenues for enhancing the electrochemical performance of transition metal oxalate materials in areas such as proton batteries, electrocatalysis, and solid electrolytes for proton conductors.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"109 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143026957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Carboxylate-functionalized polyoxo-titanium clusters for adsorption/solar photocatalytic synergistic tetracycline degradation 羧酸功能化多氧钛团簇吸附/太阳能光催化协同降解四环素

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2025-01-23 DOI: 10.1039/d4ta08391a

Shu-Han Wang, Ming Du, Hui-Li Guo, Hui-Yuan Chen, Jing-Yu Pang, Dong-Bin Dang, Yan Bai

{"title":"Carboxylate-functionalized polyoxo-titanium clusters for adsorption/solar photocatalytic synergistic tetracycline degradation","authors":"Shu-Han Wang, Ming Du, Hui-Li Guo, Hui-Yuan Chen, Jing-Yu Pang, Dong-Bin Dang, Yan Bai","doi":"10.1039/d4ta08391a","DOIUrl":"https://doi.org/10.1039/d4ta08391a","url":null,"abstract":"Adjusting the bandgap of polyoxo-titanium clusters (PTCs) to enhance their visible light catalytic performance is one of the effective strategies. Herein, three PTCs modified by organic carboxylic acid ligands with different conjugated systems were synthesized in one-step, [Ti6(O3P-Phen)2(OiPr)10(L)2] (OiPr = isopropyl alcohol; L = benzimidazole dicarboxylic acid, Ti6-BIDC; 4-chloromethyl benzoic acid = CMBA, Ti6-CMBA; malonic acid = MA, Ti6-MA), and were used as photocatalysts in the visible light catalytic degradation of tetracycline (50 mL, 50 mg L−1). Ti6-BIDC showed excellent catalytic activity and cycling stability in the degradation of tetracycline. Importantly, the degradation efficiency under real sunlight was 92.4%. The modification of carboxylic acid ligands significantly changed the photoelectric properties and specific surface area of the compounds. In addition, the results of active species trapping experiments demonstrated that the superoxide anion (˙O2−) radical and hole (h+) played dominant roles in TC degradation. The intermediates and possible pathways of TC degradation were analyzed by LC-MS, and the toxicity of the degradation intermediates was evaluated by the Mung bean planting experiment and toxicity estimation software tool (T.E.S.T.). This is the first report on the application of PTCs in photocatalytic degradation of tetracycline, providing new ideas for the degradation of tetracycline.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"81 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143020369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

A fiber-shaped sensor constructed by coaxial wet-spinning for dual-mode sensing 一种同轴湿纺光纤型双模传感传感器

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2025-01-23 DOI: 10.1039/d4ta08176e

Duixin Ma, Huayang Fang, Jianping Sun, Tao Jiang

{"title":"A fiber-shaped sensor constructed by coaxial wet-spinning for dual-mode sensing","authors":"Duixin Ma, Huayang Fang, Jianping Sun, Tao Jiang","doi":"10.1039/d4ta08176e","DOIUrl":"https://doi.org/10.1039/d4ta08176e","url":null,"abstract":"With the booming development of smart electronic devices, the forms of wearable sensors are gradually diversifying. However, integrating dual sensing capabilities into a single sensor for decoupled strain and humidity detection remains a significant challenge. In this study, we report a flexible dual-modal sensor designed with a “skin–core” structure that integrates pressure and humidity sensing layers, enabling decoupled monitoring of pressure and humidity. Using a coaxial wet-spinning method, we fabricated multifunctional sensing fibers with MXene/CNF as the core and cationic cellulose as the skin. By controlling the ratio of the spinning solution for the core layer, the resulting MXene/CNF@cationic cellulose aerogel fiber (MCC) pressure sensor exhibits high sensitivity (120 kPa−1), rapid response time (50 ms for response, 55 ms for recovery), and excellent cycling stability under compression. Furthermore, the unique structure of the coaxially spun aerogel and the inherent properties of the MCC fiber material endow the sensor with outstanding cycling stability, fast moisture absorption and desorption responses (response time of 9.43 s and recovery time of 5.3 s), and excellent moisture absorption and desorption characteristics. This study promotes the effective utilization of cellulose-based materials in wearable sensing and health management, expands how sensors can be worn, and lays the foundation for the integration of sensors with garments.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"40 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143020742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Durable Cu-doped P3-Na0.62Mn1-xCuxO2 Cathodes for High-Capacity Sodium-ion Battery 高容量钠离子电池用耐用掺铜P3-Na0.62Mn1-xCuxO2阴极

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2025-01-23 DOI: 10.1039/d4ta07432g

Lunara Rakhymbay, Zhanar Zhakiyeva, JUNHO YU, A-Yeon Kim, Hun-Gi Jung, Zhansaule Bagyndyk, Zhumabay Bakenov, Seung-Taek Myung, Aishuak Konarov

{"title":"Durable Cu-doped P3-Na0.62Mn1-xCuxO2 Cathodes for High-Capacity Sodium-ion Battery","authors":"Lunara Rakhymbay, Zhanar Zhakiyeva, JUNHO YU, A-Yeon Kim, Hun-Gi Jung, Zhansaule Bagyndyk, Zhumabay Bakenov, Seung-Taek Myung, Aishuak Konarov","doi":"10.1039/d4ta07432g","DOIUrl":"https://doi.org/10.1039/d4ta07432g","url":null,"abstract":"Herein, this research presents a comprehensive study of the novel P3-Na0.62Mn1-xCuxO2 (x=0, 0.09, 0.19, and 0.28) material, elucidating the effects of partial Cu-doping on its structural and electrochemical characteristics. Our investigation employs operando X-ray diffraction (XRD), demonstrating a stable single-phase reaction during the battery's cycling operation accordingly preventing P3-O3 phase transition. Furthermore, operando differential electrochemical mass spectrometry (DEMS) demonstrates the absence of irreversible O2 evolution, hence affirming the stability of reversible oxygen redox processes in this material. Ex situ X-ray absorption near edge structure (XANES) study reveals substantial contributions from the Cu2+/Cu3+, Mn3+/Mn4+, and O2-/On- redox pairs to the overall capacity of the battery. The findings have been confirmed by X-ray photoelectron spectroscopy (XPS), which not only supports the results from the XANES investigation but significantly enhances them. Additionally, the oxygen redox processes have been established by the obvious widening apparent in the O K-edge XANES spectra and the detection of peroxo-like oxygen species in the XPS spectra when the battery is charged to 4.7 V. The electrochemical properties of P3-Na0.62Mn0.75Cu0.19O2 material have been extensively investigated, demonstrating high capacity (212.2 mAh g-1 at 20 mA g-1) and excellent rate performance due to the incorporation of electrochemically active Cu2+ ions. And finally, a full-cell of P3-Na0.62Mn0.75Cu0.19O2 with commercial hard carbon could achieve exceptional rate capability. This systematic approach highlights the key significance of Cu-doping for boosting electrochemical performance by promoting stable oxygen redox activities.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"38 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143020372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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