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Reduced graphene oxide (rGO) sheet decorated NaV(PO) (NVP) microspheres were successfully synthesized by spray-drying method. The NVP microspheres were embedded by rGO sheets, and the surface of the particles were coated by rGO sheets and amorphous carbon. Thus, the carbon conductive network consisted of rGO sheets and amorphous carbon generated in the cathode material. NVP microspheres decorated with different content of rGO (about 0, 4, 8, and 12 wt%) were investigated in this study. The electrochemical performance of NVP exhibited a significant enhancement after rGO introduction. The electrode containing about 8 wt% rGO (NVP/G8) showed the best rate and cycle performance. NVP/G8 electrode exhibited the discharge capacity of 64.0 mAh g at 70°C, and achieved high capacity retention of 95.5% after cycling at 10°C for 100 cycles. The polarization of the electrode was inhibited by the introduction of rGO sheets. Meanwhile, compared with the pristine NVP electrode, NVP/G8 electrode exhibited small resistance and high diffusion coefficient of sodium ions.
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http://dx.doi.org/10.3389/fchem.2018.00174 | DOI Listing |
ACS Appl Mater Interfaces
September 2025
Department of Physics and Astronomy, Clemson University, Clemson, South Carolina 29634, United States.
Developing next-generation anodes with high silicon (Si) contents requires thoughtful embedment of Si particles in protective media, mainly carbonaceous materials. However, it has been challenging to simultaneously realize optimal electrical conduction, structural integrity, and low-cost synthesis for advancing Si-carbon materials. In this work, we addressed these challenges by synthesizing a composite, where commercial Si nanoparticles are embedded in a dual carbon framework via a facile solution mixing and annealing process.
View Article and Find Full Text PDFSci Rep
September 2025
Department of Semiconductor, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran.
The determination of homocysteine (HCys) has garnered significant interest within the biomedical community in recent years, as it serves as a key biomarker for a variety of diseases. Disruptions in HCys metabolism can lead to elevated blood levels of HCys, which are associated with cardiovascular diseases, Parkinson's disease, and etc. Therefore, the sensitive analysis of HCys levels in biological samples is crucial.
View Article and Find Full Text PDFJ Colloid Interface Sci
August 2025
College of Chemistry, Zhengzhou University, Zhengzhou 450001, China. Electronic address:
The practical deployment of lithium‑sulfur (LiS) batteries is hindered by the dissolution of lithium polysulfides (LiPSs) and their sluggish redox kinetics. Heteroatom doping can strengthen both LiPSs adsorption and catalytic conversion, yet identifying the optimal dopant concentration remains elusive. Benefiting from the similar atomic radii and chemical properties of sulfur (S) and selenium (Se), the atomic ratios of Se/(S + Se) can be fully regulated from 0 to 1 in the formation of Mo(SSe) two-dimensional film on reduced graphene oxide(rGO) substrates using a one-step hydrothermal technique.
View Article and Find Full Text PDFJ Hazard Mater
August 2025
School of Civil, Environmental, and Infrastructure Engineering, Southern Illinois University, 1230 Lincoln Dr, Carbondale, IL 62901, USA; Materials Technology Center, Southern Illinois University, 1245 Lincoln Dr, Carbondale, IL 62901, USA. Electronic address:
This study investigates the synthesis, characterization, and performance of nanoscale zero-valent iron/reduced graphene oxide (nZVI/rGO) nanohybrids for the efficient removal of per- and polyfluoroalkyl substances (PFAS). The magnetic nanohybrids were fabricated using an innovative thermal co-reduction method, enabling scalable production under inert conditions. Comprehensive characterization confirmed successful integration of nZVI onto rGO sheets, and nanohybrids exhibited high surface area, strong magnetic properties, and effective adsorption and photocatalytic degradation capabilities for PFAS.
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August 2025
Department of Physics, Indian Institute of Technology Bombay, Mumbai, 400076, India.
All methods to synthesize graphene oxide on a large scale utilize a strongly acidic medium. Graphene oxide (GO) to reduced graphene oxide (rGO) conversion, i.e.
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