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Supercapacitors (SCs) have emerged as attractive energy storage devices due to their rapid charge/discharge rates, long cycle life, and high-power density. However, the development of innovative electrode materials to achieve high-performance remains crucial to meet future requirements in supercapacitor technology. In this work, we have explored the potential of a microwave-engineered NiZrO@GNP composite as a promising electrode material for SCs. A microwave assisted hydrothermal approach was adopted for the fabrication of the NiZrO@GNP nanocomposite. Structural and morphological investigations showed its structural richness and its chemical compositions. When applied as a SC electrode, this innovative combination exhibits battery-like behaviour with higher specific capacity (577.63 C g) with good cyclic stability, and good performance. We have assembled an asymmetric-type two-electrode SC device and analysed its electrochemical features. This NiZrO@GNP device exhibits the specific capacity of 47 C g with capacitance retention of 70% after 2000 charge-discharge cycles. Further research on optimizing the synthesis process and exploring different device configurations could pave the way for even higher-performance supercapacitors in the future.
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http://dx.doi.org/10.1039/d4ra00621f | DOI Listing |
Anal Bioanal Chem
September 2025
School of Artificial Intelligence, Hangzhou Dianzi University, Hangzhou, 310018, China.
The prompt and accurate identification of pathogenic bacteria is crucial for mitigating the transmission of infections. Conventional detection methods face limitations, including lengthy processing, complex sample pretreatment, high instrumentation costs, and insufficient sensitivity for rapid on-site screening. To address these challenges, an aptamer (Apt)-sensor based on functionalized magnetic nanoparticles (MNPs) was developed for detecting Escherichia coli.
View Article and Find Full Text PDFNature
September 2025
Research Center for Industries of the Future, Westlake University, Hangzhou, China.
The electrolyte-electrode interface serves as the foundation for a myriad of chemical and physical processes. In battery chemistry, the formation of a well-known solid-electrolyte interphase (SEI) plays a pivotal role in ensuring the reversible operations of rechargeable lithium-ion batteries (LIBs). However, characterizing the precise chemical composition of the low crystallinity and highly sensitive SEI presents a formidable challenge.
View Article and Find Full Text PDFJ Hazard Mater
September 2025
School of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, China; Henan Key Laboratory of Environmental Chemistry and Low Carbon Technology, Zhengzhou 450001, China. Electronic address:
Solid electrolyte cell is a novel gas purification approach, which has unique superiority in simultaneous nitrogen oxides (NO) and volatile organic compounds (VOCs) removal. The development of effective electrode materials and the comprehensive understanding of reaction mechanisms are essential to advancing this technology. In this study, LaPrBaNiO (x = 0, 0.
View Article and Find Full Text PDFJ Colloid Interface Sci
September 2025
Strategic Research Center for Smart Battery, Korea Basic Science Institute (KBSI), Daejeon 34133, Republic of Korea. Electronic address:
Advancing impactful, economical, and durable Co-based bifunctional electrocatalysts for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) has been crucial in developing sustainable energy technologies. In this work, Co and CoN nanoparticles (NPs)-incorporated S, N-doped carbon catalysts (Co/CoN/SNC) were prepared via direct pyrolysis of the CoDATT complex, exhibiting high bifunctional electrocatalytic performance for ORR and OER. The complex precursor, CoDATT, was synthesized for the first time using diaminoterthiophene (DATT) and CoCl.
View Article and Find Full Text PDFJ Colloid Interface Sci
September 2025
National and Local Joint Engineering Research Center for Lithium-ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China..
Spinel lithium manganate (LiMnO) is considered a highly promising cobalt-free cathode material for lithium-ion batteries (LIBs) owing to its three-dimensional Li-ion diffusion channels and the abundance of manganese. However, its practical applications are limited due to the substantial capacity deterioration induced by the Jahn-Teller effect and interfacial instability with the organic electrolyte. In this work, we propose a polyanion-based surface engineering strategy that enables simultaneous doping and the formation of a protective coating on the LiMnO cathode.
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