Journal of Alloys and Compounds最新文献

{"title":"Enhanced Long-Term Stability of Ambient-Fabricated Perovskite Photodetectors via Microwave-Assisted Synthesis","authors":"Denice Navat Feria, Guo-Hong Wu, Chen-Wei Chiang, Yu-Cheng Lin, Kai-Tse Kao, Jan-Tian Lian, Tai-Yuan Lin","doi":"10.1016/j.jallcom.2025.180779","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.180779","url":null,"abstract":"Hybrid organic-inorganic metal halide perovskites have garnered significant attention for their large potential in optoelectronic applications. However, its sensitivity to ambient environmental factors hinders its commercialization due to degradation over time, encouraging fabrication in controlled inert environments and increasing fabrication costs. This study successfully fabricated a fully ambient environment triple cation perovskite photodetector with enhanced long-term stability. Compared to the conventional solution method (CSM), the perovskite films prepared using microwave-assisted synthesis (MAS) remarkably improved the structural stability and optoelectronic performance in environmental conditions. Photoluminescence (PL) spectroscopy revealed that films synthesized via MAS remarkably retained 55.3% of their initial PL intensity after 90 days, even without encapsulation, whereas CSM perovskite films immediately degraded to 9.2% after 7 days. X-ray diffraction (XRD) analysis showed high crystalline and pure MAS perovskite material, showing minimal degradation of the perovskite material and suppressed PbI₂ impurity formation over time. When fabricated as a photodetector in fully environmental conditions, MAS perovskites demonstrated a notable 6-fold improvement in responsivity (3.7<!-- --> <!-- -->A/W) compared to those prepared by CSM (0.61<!-- --> <!-- -->A/W). Moreover, these photodetectors maintain ~73% of their responsivity after 38 days, while devices from the CSM perovskites deteriorate to just 5% within 7 days, indicating environmental and long-term stability. These findings highlight the emerging opportunities for high-quality and stable perovskite films when MAS is utilized under ambient conditions without any controlled environment, indicating a promising pathway toward robust and scalable perovskite-based optoelectronic devices.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"103 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143909892","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}

{"title":"Se vacancy-enabled ZIF-derived multimetal selenides: crafting high-performance battery-type supercapacitors","authors":"Hao Guo, Yu Liu, Henglong Ren, Yanrui Hao, Liping Peng, Wu Yang","doi":"10.1016/j.jallcom.2025.180765","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.180765","url":null,"abstract":"Metal-organic framework (MOF) materials, as electrodes for supercapacitors, have promising applications, but their conductivity and capacitance performance are critical limitations to their practical use. By constructing rational structures and incorporating various active materials, the conductivity and capacitance performance of MOF-derived materials can be significantly enhanced. This study presented the application of trimetallic selenide electrode materials V_a-ZnSe/NiCoSe₂ in supercapacitors prepared through sequential Ni²⁺ etching, selenization and NaBH₄ reduction of ZIF-8@ZIF-67 core-shell structure. The results exhibited that an appropriate number of Se vacancy defects effectively enhanced the specific capacitance and conductivity of the material, thereby improving the performance of supercapacitors. When NaBH₄ concentration was 1<!-- --> <!-- -->M, the obtained V₁-ZnSe/NiCoSe₂ electrode material presented excellent supercapacitor performance with a maximum specific capacitance (capacity) of 1563<!-- --> <!-- -->F·g^-1 (705.5<!-- --> <!-- -->C^.g^-1) at a current density of 1<!-- --> <!-- -->A·g^-1 as well as high rate capability and long-term cycling stability. Additionally, the assembled V₁-ZnSe/NiCoSe₂//AC asymmetric supercapacitor delivered a high energy density of 41.9<!-- --> <!-- -->Wh·kg^-1 at a power density of 750<!-- --> <!-- -->W·kg^-1, highlighting its great potential in the field of energy storage.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"12 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143909987","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}

{"title":"CdS treatment effects on high efficient spray-deposited Zn1-xSnxO/CIGSSe solar cell","authors":"Md. Matiur Rahman ,&nbsp;Avinash Manoharan ,&nbsp;Tae Ei Hong ,&nbsp;Namuundari Otgontamir ,&nbsp;JunHo Kim","doi":"10.1016/j.jallcom.2025.180783","DOIUrl":"10.1016/j.jallcom.2025.180783","url":null,"abstract":"<div><div>We investigated the wide band gap oxide Zn_1-xSn_xO (ZTO) film as a potential buffer layer for Cu(In,Ga)(S,Se)₂ (CIGSSe) solar cells. Both the CIGSSe absorber and the ZTO buffer were fabricated using a non-vacuum aqueous spray method. The ZTO-buffered cell exhibited lower power conversion efficiency (PCE) compared to the CdS-buffered cell, primarily due to surface damage to the absorber caused by the spray deposition process. To mitigate this damage, a brief CdS treatment (CdS(t)) was applied prior to the ZTO spray, forming a protective layer that not only shielded the absorber but also facilitated defect passivation in the CIGSSe absorber. With the dual buffer layer of ZTO/CdS(t), we achieved a solar cell efficiency of 13.73 %, surpassing the CdS-buffered cell's efficiency of 13.32 %. Defect characterization techniques revealed that the CdS(t) treatment effectively passivated defects in the CIGSSe absorber, while the ZTO buffer enhanced photocurrent in the blue spectrum due to its wide band gap nature, leading to enhanced open circuit voltage, short circuit current, and fill factor. Furthermore, as the temperature decreased, the PCE of the ZTO/CdS(t) solar cell increased, reaching 17.17 % at temperature of 200 K. These findings suggest that ZTO buffer combined with CdS treatment could serve as a promising buffer layer for high-efficiency chalcogenide solar cell.</div></div>","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1029 ","pages":"Article 180783"},"PeriodicalIF":5.8,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143905690","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}

{"title":"Improved hydrogen storage performance of magnesium hydride catalyzed by two dimensional Ti3C2-coated NbN","authors":"Zexuan Yang ,&nbsp;Jiaao Wu ,&nbsp;Yazhou Wang ,&nbsp;Shunxiang Wang ,&nbsp;Yongjin Zou ,&nbsp;Cuili Xiang ,&nbsp;Fen Xu ,&nbsp;Lixian Sun ,&nbsp;Yong Shen Chua","doi":"10.1016/j.jallcom.2025.180752","DOIUrl":"10.1016/j.jallcom.2025.180752","url":null,"abstract":"<div><div>With rising energy demand for energy and the deterioration of the environment, the search for finding a sustainable energy material is crucial. Hydrogen energy has been widely recognized as a clean energy source, and magnesium-based hydrogen storage material (MgH₂) is a material with great potential, but some of its properties limit its practical application. In this study, we prepared flower-shaped niobium nitride (NbN) and 2D titanium carbide (Ti₃C₂). Subsequently, the two materials were compounded to yield a NbN@Ti₃C₂ composite material. Because of the synergistic effect of NbN and multivalent Ti as a catalytic pair, the addition of 7 wt% NbN@Ti₃C₂ significantly reduced the dehydrogenation temperature of MgH₂ from 305 °C to 185 °C. Under isothermal dehydrogenation at 300 °C, 5.9 wt% of H₂ was dissociated within 180 s. The dehydrogenation activation energy was measured to be 44.82 ± 2.57 kJ/mol, considerably lower than that of ball-milled MgH₂ (126.04 ± 3.65 kJ/mol), representing a relative reduction of 64.4 %. The presence of carbon effectively avoids the reunification phenomenon during the cyclic testing; thus, the MgH₂-7 wt% NbN@Ti₃C₂ composite material maintained an effective H₂ capacity of approximately 95.5 % after 50 cycles at 300 °C, substantially enhancing the cyclic stability of MgH₂.</div></div>","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1029 ","pages":"Article 180752"},"PeriodicalIF":5.8,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906434","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}

{"title":"Ginkgo leaf-like Co9S8@Ni3S2 composite nano-leaf array with abundant vacancy defects and grain boundaries for flexible hybrid supercapacitors","authors":"Jinge Zhang ,&nbsp;Xiaofang Zhou ,&nbsp;Jingfeng Wang ,&nbsp;Xue Chen ,&nbsp;Shanshan Liu ,&nbsp;Jiamin Fu ,&nbsp;Chaowei Li ,&nbsp;Weimin Du","doi":"10.1016/j.jallcom.2025.180768","DOIUrl":"10.1016/j.jallcom.2025.180768","url":null,"abstract":"<div><div>Ginkgo leaf-like Co₉S₈@Ni₃S₂ composite nano-leaf array (CNLA) was fabricated on the cobalt-nickel foam substrate by solvothermal method. Characterization results reveal that the obtained Co₉S₈@Ni₃S₂ belongs to the mixed phase and presents a unique ginkgo leaf-like appearance with the thickness of ∼ 40 nm, forming the ordered nanoarray structure. Crystal studies and density functional theory calculations demonstrate that the abundant vacancy defects and grain boundaries exist in Co₉S₈@Ni₃S₂ CNLA, which generate numerous active sites, adjust the electron distribution, optimize the adsorption/desorption processes with electrolyte ions, and enhance the electrochemical properties. Therefore, ginkgo leaf-like Co₉S₈@Ni₃S₂ CNLA achieves a high specific capacitance of 2100 F g⁻¹ at 2 A g⁻¹, excellent rate capability of 59.5 % from 2 A g⁻¹ to 20 A g⁻¹, and 86.7 % capacitance retention after 10,000 cycles. Notably, the flexible hybrid supercapacitor based on ginkgo leaf-like Co₉S₈@Ni₃S₂ CNLA and activated carbon demonstrates an energy density of 42.3 Wh kg⁻¹ at a power density of 184.6 W kg⁻¹, and enhanced cycle stability with 89.5 % retention after 10,000 cycles. Meanwhile, the flexible hybrid device exhibits excellent low-temperature toughness and superior mechanical flexibility. These exciting findings sufficiently prove the promising potential of Co₉S₈@Ni₃S₂ CNLA for electrochemical energy storage.</div></div>","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1029 ","pages":"Article 180768"},"PeriodicalIF":5.8,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906423","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}

{"title":"Advancing CO2 methanation with 3D-engineered catalysts: Innovations, challenges, and future prospects","authors":"Salma Samidin ,&nbsp;Fazilah Farhana Abd Aziz ,&nbsp;Nisa Afiqah Rusdan ,&nbsp;Khoirul Solehah Abdul Rahim ,&nbsp;G. Abdulkareem-Alsultan ,&nbsp;Sharifah Najiha Timmiati ,&nbsp;Wan Nor Roslam Wan Isahak","doi":"10.1016/j.jallcom.2025.180766","DOIUrl":"10.1016/j.jallcom.2025.180766","url":null,"abstract":"<div><div>The increasing global energy demand and the urgent need to reduce greenhouse gas emissions have intensified interest in CO₂ methanation, a pivotal process in carbon capture and utilization (CCU) technologies for sustainable energy systems. Three-dimensional (3D) catalyst materials have emerged as groundbreaking solutions, offering enhanced structural properties, increased surface area, and superior stability, thereby significantly improving the efficiency and effectiveness of the methanation process. Conventional catalyst designs face limitations, including short operational lifespans, suboptimal selectivity, and inefficient heat and mass transfer, which hinder their scalability and broader industrial adoption. Despite advancements, the potential of innovative fabrication methods, such as 3D printing and templating, to optimize catalyst performance in CO₂ methanation remains insufficiently explored and systematically reviewed. This review systematically examines the development and application of 3D catalyst materials in CO₂ methanation, emphasizing their fabrication techniques, performance enhancements, and contributions to industrial processes. The study highlights how 3D catalysts outperform traditional designs regarding of stability, selectivity, and energy efficiency, presenting a comprehensive analysis of novel material innovations and their scalability for industrial applications. It bridges knowledge gaps by linking emerging fabrication technologies to practical CO₂ utilization solutions. 3D catalyst materials represent a paradigm shift in CO₂ methanation, addressing critical challenges in catalyst performance while supporting the global transition toward carbon neutrality and sustainable energy systems. This review provides important new information for developing 3D catalysts, highlighting their revolutionary potential to bring cutting-edge materials science into line with large-scale energy solutions. It emphasizes the value of 3D catalysts in addressing the twin demands of energy sustainability and climate action by outlining a course for future research.</div></div>","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1028 ","pages":"Article 180766"},"PeriodicalIF":5.8,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143905466","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}

{"title":"High conductivity and a large specific surface area triggered electrochemical properties of MnFe2O4-CNTs nanocomposites for energy storage applications","authors":"Hamza Nawaz, Javed Iqbal, Sobia Jabeen, M. Imran Shahzad, Naeem Ahmad","doi":"10.1016/j.jallcom.2025.180773","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.180773","url":null,"abstract":"In addressing the demand for high-energy-density supercapacitors, the development of electrode materials with a wide potential range and high specific capacitance is crucial for energy storage nanodevices. Ferrite-based nanocomposites are a promising group for electrodes. This study conducts a thorough examination of the structural and electrochemical properties of (MnFe₂O₄)_1-x(CNTs)_x nanocomposites (where x= 0, 0.20, 0.40, 1). MnFe₂O₄ based nanocomposites have been synthesized using a simple, cost-effective, and versatile chemical route through an ex-situ approach. The resulting nanocomposites display a desired pure polycrystalline structure, nanostructured morphology, defective vibrational bonding, and a tuned bandgap toward the visible range. These nanocomposites demonstrate superior electrochemical performance in KOH electrolyte, as compared to an acidic environment. Notably, the (MnFe₂O₄)_0.60(CNTs)_0.40 nanocomposite exhibits a high specific capacitance of 652 Fg^-1 at 10 mVs^-1, which is twice that of the individual host matrix MnFe₂O₄. Additionally, the nanocomposite maintains good cycling stability, retaining up to 81% of its capacity over 1500 cycles with an ESR value of 0.432Ω. The energy and power densities of the nanocomposite as an electrode for supercapacitors have significantly improved to 20.4<!-- --> <!-- -->Wh/Kg and 900<!-- --> <!-- -->W/Kg, respectively. This recent work offers a new approach to enhance the performance of MnFe₂O₄-CNTs nanocomposites in environmental and energy storage applications.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"70 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143905460","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}

{"title":"Three-dimensional prelithiated Ti3C2Tx for high-capacity lithium-ion batteries anode","authors":"Zhaoxia Yuan, Mengyuan Yue, Youhai Cao, Gaofeng Wang, Yijing Wang","doi":"10.1016/j.jallcom.2025.180770","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.180770","url":null,"abstract":"Ti₃C₂T_x is a promising electrode material for lithium-ion batteries owing to its superior electrical conductivity, low lithium-ion diffusion energy barrier, and tunable surface structure. However, the self-stacking problem of Ti₃C₂T_x nanosheets can seriously degrade lithium storage performance. Herein, three-dimensional prelithiated Ti₃C₂T_x (Li-Ti₃C₂T_x) was fabricated via an in-situ adsorption-reduction method and employed as an anode for lithium-ion batteries. The Li-ion pre-insertion not only enlarges the interlayer distance of Ti₃C₂T_x but also replaces the -F groups on the surface of Ti₃C₂T_x, thereby improving the redox activity. The three-dimensional structure of Li-Ti₃C₂T_x provides more open spatial channels, effectively mitigating self-stacking issues, shortening ion transport pathways, and facilitating rapid ion/electron transfer, which collectively improve cycling stability. Consequently, the Li-Ti₃C₂T_x electrode demonstrates excellent rate capability, high reversible capacity (503.5<!-- --> <!-- -->mA<!-- --> <!-- -->h g^-1 at 0.1<!-- --> <!-- -->A<!-- --> <!-- -->g^-1 after 200 cycles) and outstanding long-term stability (362<!-- --> <!-- -->mA<!-- --> <!-- -->h g^-1 at 2<!-- --> <!-- -->A<!-- --> <!-- -->g^-1 after 4000 cycles). This study establishes a theoretical foundation for advancing Ti₃C₂T_x in high-capacity lithium-ion battery applications.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"93 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143905501","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}

{"title":"High-temperature near-infrared imaging of glass ceramics with thermometric functionality","authors":"Peng Zhang ,&nbsp;Sai Li ,&nbsp;Xiuxia Yang ,&nbsp;Minghui Long ,&nbsp;Jiabo Sun ,&nbsp;Xuhui Xu ,&nbsp;Ping Liu","doi":"10.1016/j.jallcom.2025.180764","DOIUrl":"10.1016/j.jallcom.2025.180764","url":null,"abstract":"<div><div>Near-infrared (NIR) imaging technology offers several advantages, including reduced background fluorescence, deep penetration, and high resolution. It is widely applied in various fields, such as medical diagnosis, treatment, night vision, and quality monitoring. However, current NIR imaging materials are unsuitable for high-temperature applications, such as industrial quality inspection and food safety monitoring. This study introduces the Ba₂LaF₇: Yb³⁺, Tm³⁺ glass-ceramic material designed for high-temperature NIR imaging and precise temperature measurement. The crystallization properties of Ba₂LaF₇ glass-ceramics (GC) can be controlled by using Yb³⁺ ions as nucleating agents, which promoted the growth of Ba₂LaF₇ nanocrystalline and altered the around crystal field environment of RE ions, preventing the quenching of the luminescence concentration of the RE ions. The temperature-sensing performance of Tm³⁺ between 701 and 808 nm is assessed for the optimized sample, demonstrating a maximum sensitivity of approximately 0.00046 K⁻¹ at 573 K. NIR imaging technology enables the detection of internal structures of various objects in high-temperature environments. This technology holds significant potential for applications in high-temperature quality inspection and related fields.</div></div>","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1029 ","pages":"Article 180764"},"PeriodicalIF":5.8,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906436","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}

{"title":"Double-layer carbon encapsulated with iron-doped cobalt hydroxide on Cu2O for high-performance supercapacitor anode","authors":"Junhua You, Zhihua Hu, Lili Liu, Yao Zhao, Jie Zhang, Rui Guo, Jian Wang","doi":"10.1016/j.jallcom.2025.180754","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.180754","url":null,"abstract":"Due to the increasing prominence of energy and environmental issues, the output performance and safety of energy storage devices are becoming more and more important. To address this dilemma, and an interesting approach has been proposed to rationally design porous carbon derived from cobalt-based metal-organic frameworks (ZIF-67) on copper foams and to further optimize the ratio of iron ions in cobalt hydroxide based on Cu₂O/nanoporous carbon (Cu₂O/NPC). Finally, an anode material was obtained by electrodepositing it on polypyrrole (PPy) nanowires. The resulting Cu₂O/NPC@CoFe_0.15(OH)_x/PPy-20 (CNCF0.15P2) material was endowed with excellent electrochemical properties up to 11.8<!-- --> <!-- -->F·cm^-2 with almost no attenuation for 2500 cycles. Favorable charge transfer morphology, lower diffusion resistance and more resistant structural stability are responsible for the superior activity and cycling performance. Furthermore, an asymmetric device utilizing the CNCF0.15P2 electrode alongside a cobalt-nickel bimetallic hydroxide electrode achieves an impressive energy density of up to 0.44<!-- --> <!-- -->mWh·cm^-2 at 2.4 mW·cm^-2, demonstrating remarkable cycling performance. This study demonstrates that the CNCF0.15P2 negative electrode is a promising option for energy storage devices and offers valuable insights for the development of copper-based supercapacitors.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"111 3S 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143909989","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}