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Your search keyword '"Musen, Li"' showing total 3 results
Start Over Author "Musen, Li" Journal journal of materials chemistry a
3 results on '"Musen, Li"'

1. Expression of concern: Preparation of reduced graphene oxide–Ni(OH)2 composites by electrophoretic deposition: application for nonenzymatic glucose sensing.

Author

Subramanian, Palaniappan, Niedziolka-Jonsson, Joanna, Lesniewski, Adam, Qian Wang, Musen Li, Boukherroub, Rabah, and Szunerits, Sabine

Abstract

The Journal of Materials Chemistry A published an expression of concern regarding the reliability of data in an article titled "Preparation of reduced graphene oxide–Ni(OH)2 composites by electrophoretic deposition: application for nonenzymatic glucose sensing." The Royal Society of Chemistry has requested the University of Lille to investigate the matter, and the expression of concern will remain until conclusive evidence is obtained. The article was authored by Palaniappan Subramanian, Joanna Niedziolka-Jonsson, Adam Lesniewski, Qian Wang, Musen Li, Rabah Boukherroub, and Sabine Szunerits. [Extracted from the article]

Published
2025
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2. Insights into the stable layered structure of a Li-rich cathode material for lithium-ion batteries

Author

Shuai Yuan, Dengsong Zhang, Juan An, Hongjiang Liu, Guorong Chen, Musen Li, Shimou Chen, and Liyi Shi

Subjects
Materials science, Oxide, chemistry.chemical_element, Nanotechnology, 02 engineering and technology, 010402 general chemistry, Electrochemistry, 01 natural sciences, law.invention, Ion, Metal, chemistry.chemical_compound, law, General Materials Science, Renewable Energy, Sustainability and the Environment, Doping, General Chemistry, 021001 nanoscience & nanotechnology, Cathode, 0104 chemical sciences, chemistry, Chemical engineering, visual_art, visual_art.visual_art_medium, Lithium, 0210 nano-technology, Current density
Abstract

Li-rich layered metal oxides (LNMO) receive significant attention as cathode materials of lithium-ion batteries owing to their higher specific energy density and lower cost compared with current commercial cathode materials. However, the stability of the structure during the cycle becomes a fatal weakness. In order to reduce the collapse of the structure during the cycle, previous researchers usually use cationic doping means, but all reported works have ignored the adverse effects from the destruction of the oxide layers that damages the structural integrity of the materials. In this work, from the perspective of a stable oxygen layer structure, we first dope sulfur into the oxygen layers of a lithium-rich cathode material to improve the structural stability and cycling performance. The preliminary calculation results of VASP prove that a small amount of sulfur doping is beneficial to stabilize the crystal structure of the material and balance the energy of the embedding and deintercalation of lithium ions, which provides theoretical guidance for our study. Further electrochemical results show that the sulfur-doped lithium-rich material released a higher initial efficiency of 96%, a specific capacity of 293.3 mA h g−1, and better cycling stability and rate performance (a capacity of 117 mA h g−1 is maintained at a current density of 5C). This work provides a new manner of doping for developing Li-rich layered metal oxide cathode materials that evade structural change.

Published
2017
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3. Preparation of reduced graphene oxide-Ni(OH)[sub 2] composites by electrophoretic deposition: application for non-enzymatic glucose sensing.

Author

Subramanian, Palaniappan, Niedziolka-Jonsson, Joanna, Lesniewski, Adam, Qian Wang, Musen Li, Boukherroub, Rabah, and Szunerits, Sabine

Abstract

A sensitive and stable non-enzymatic sensing platform for D-glucose based on a reduced graphene oxide (rGO) matrix modified with Ni(OH)[sub 2] nanostructures was established. The sensing matrix was fabricated in one-step through an electrophoretic deposition approach. It is based on the mixing of negatively charged graphene oxide (GO) with nickel ions resulting in a positively charged composite making cathodic electrophoretic deposition possible. The thickness of the resulting rGO/Ni(OH)[sub 2] matrix deposited on Au could be controlled by varying the time of electrophoretic deposition. The rGO/Ni(OH)[sub 2] matrix was characterized by X-ray photoelectron spectroscopy, Raman spectroscopy and cyclic voltammetry. The rGO/Ni(OH)[sub 2] electrodes exhibited excellent electrocatalytic behaviour towards glucose oxidation in alkaline medium. The response current of the sensor is linear to glucose concentrations from 15 mM to 30 mM with a sensitivity of 11.4 ± 0 mA cm[sup- 2] mM[sup -1]. The interface was much more stable than drop-cast films. These results pave the way for electrophoretic deposition as a competitive alternative over drop-casting for the fabrication of rGO modified interfaces. [ABSTRACT FROM AUTHOR]

Published
2014
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