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Sonia FJ, Haider G, Ghosh S, Müller M, Volochanskyi O, Bouša M, Plšek J, Kamruddin M, Fejfar A, Kalbáč M, Frank O. Interface and Morphology Engineered Amorphous Si for Ultrafast Electrochemical Lithium Storage. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2311250. [PMID: 38431938 DOI: 10.1002/smll.202311250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 01/31/2024] [Indexed: 03/05/2024]
Abstract
Ultrafast high-capacity lithium-ion batteries are extremely desirable for portable electronic devices, where Si is the most promising alternative to the conventional graphite anode due to its very high theoretical capacity. However, the low electronic conductivity and poor Li-diffusivity limit its rate capability. Moreover, high volume expansion/contraction upon Li-intake/uptake causes severe pulverization of the electrode, leading to drastic capacity fading. Here, interface and morphology-engineered amorphous Si matrix is being reported utilizing a few-layer vertical graphene (VG) buffer layer to retain high capacity at both slow and fast (dis)charging rates. The flexible mechanical support of VG due to the van-der-Waals interaction between the graphene layers, the weak adhesion between Si and graphene, and the highly porous geometry mitigated stress, while the three-dimensional mass loading enhanced specific capacity. Additionally, the high electronic conductivity of VG boosted rate-capability, resulting in a reversible gravimetric capacity of ≈1270 mAh g-1 (areal capacity of ≈37 µAh cm-2 ) even after 100 cycles at an ultrafast cycling rate of 20C, which provides a fascinating way for conductivity and stress management to obtain high-performance storage devices.
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Affiliation(s)
- Farjana J Sonia
- J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences, v.v.i., Dolejskova 2155/3, Prague, 18223, Czech Republic
| | - Golam Haider
- J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences, v.v.i., Dolejskova 2155/3, Prague, 18223, Czech Republic
| | - Subrata Ghosh
- Micro and Nanostructured Materials Laboratory -NanoLab, Department of Energy, Politecnico di Milano, via Ponzio 34/3, Milano, 20133, Italy
- Surface and Nanoscience Division, Materials Science Group, Indira Gandhi Centre for Atomic Research-Homi Bhabha National Institute, Kalpakkam, 603102, India
| | - Martin Müller
- FZU (Institute of Physics of the Czech Academy of Sciences), Prague, 16200, Czech Republic
| | - Oleksandr Volochanskyi
- J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences, v.v.i., Dolejskova 2155/3, Prague, 18223, Czech Republic
- Faculty of Chemical Engineering, Department of Physical Chemistry, University of Chemistry and Technology in Prague, Technická 5, Prague, 16628, Czech Republic
| | - Milan Bouša
- J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences, v.v.i., Dolejskova 2155/3, Prague, 18223, Czech Republic
| | - Jan Plšek
- J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences, v.v.i., Dolejskova 2155/3, Prague, 18223, Czech Republic
| | - Mohammed Kamruddin
- Surface and Nanoscience Division, Materials Science Group, Indira Gandhi Centre for Atomic Research-Homi Bhabha National Institute, Kalpakkam, 603102, India
| | - Antonín Fejfar
- FZU (Institute of Physics of the Czech Academy of Sciences), Prague, 16200, Czech Republic
| | - Martin Kalbáč
- J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences, v.v.i., Dolejskova 2155/3, Prague, 18223, Czech Republic
| | - Otakar Frank
- J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences, v.v.i., Dolejskova 2155/3, Prague, 18223, Czech Republic
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Xu W, Cheng Y, Hou J, Kang P. Selective Electroreduction of Oxalic Acid to Glycolic Acid by Mesoporous TiO
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Spheres. ChemCatChem 2023. [DOI: 10.1002/cctc.202201687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Affiliation(s)
- Wenjing Xu
- School of Chemical Engineering and Technology Tianjin University Tianjin 300350 P. R. China
| | - Yingying Cheng
- School of Chemical Engineering and Technology Tianjin University Tianjin 300350 P. R. China
| | - Jing Hou
- School of Chemical Engineering and Technology Tianjin University Tianjin 300350 P. R. China
| | - Peng Kang
- School of Chemical Engineering and Technology Tianjin University Tianjin 300350 P. R. China
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Worsley EA, Margadonna S, Bertoncello P. Application of Graphene Nanoplatelets in Supercapacitor Devices: A Review of Recent Developments. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3600. [PMID: 36296790 PMCID: PMC9609597 DOI: 10.3390/nano12203600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/29/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
As worldwide energy consumption continues to increase, so too does the demand for improved energy storage technologies. Supercapacitors are energy storage devices that are receiving considerable interest due to their appealing features such as high power densities and much longer cycle lives than batteries. As such, supercapacitors fill the gaps between conventional capacitors and batteries, which are characterised by high power density and high energy density, respectively. Carbon nanomaterials, such as graphene nanoplatelets, are being widely explored as supercapacitor electrode materials due to their high surface area, low toxicity, and ability to tune properties for the desired application. In this review, we first briefly introduce the theoretical background and basic working principles of supercapacitors and then discuss the effects of electrode material selection and structure of carbon nanomaterials on the performances of supercapacitors. Finally, we highlight the recent advances of graphene nanoplatelets and how chemical functionalisation can affect and improve their supercapacitor performance.
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Sengupta J, Hussain CM. Graphene-Induced Performance Enhancement of Batteries, Touch Screens, Transparent Memory, and Integrated Circuits: A Critical Review on a Decade of Developments. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3146. [PMID: 36144934 PMCID: PMC9503183 DOI: 10.3390/nano12183146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 08/28/2022] [Accepted: 09/03/2022] [Indexed: 06/16/2023]
Abstract
Graphene achieved a peerless level among nanomaterials in terms of its application in electronic devices, owing to its fascinating and novel properties. Its large surface area and high electrical conductivity combine to create high-power batteries. In addition, because of its high optical transmittance, low sheet resistance, and the possibility of transferring it onto plastic substrates, graphene is also employed as a replacement for indium tin oxide (ITO) in making electrodes for touch screens. Moreover, it was observed that graphene enhances the performance of transparent flexible electronic modules due to its higher mobility, minimal light absorbance, and superior mechanical properties. Graphene is even considered a potential substitute for the post-Si electronics era, where a high-performance graphene-based field-effect transistor (GFET) can be fabricated to detect the lethal SARS-CoV-2. Hence, graphene incorporation in electronic devices can facilitate immense device structure/performance advancements. In the light of the aforementioned facts, this review critically debates graphene as a prime candidate for the fabrication and performance enhancement of electronic devices, and its future applicability in various potential applications.
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Affiliation(s)
- Joydip Sengupta
- Department of Electronic Science, Jogesh Chandra Chaudhuri College, Kolkata 700033, India
| | - Chaudhery Mustansar Hussain
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ 07102, USA
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