History of changes to: Understanding the cycling and degradation of atomically thin 2D/1D anodes for Li & Na-ion batteries with in-situ & operando scanning probe microscopy
Date Action Change(s) User
Nov. 27, 2023, 2:13 p.m. Added 35 {"external_links": []}
Nov. 20, 2023, 2:03 p.m. Added 35 {"external_links": []}
Nov. 13, 2023, 1:34 p.m. Added 35 {"external_links": []}
Nov. 6, 2023, 1:31 p.m. Added 35 {"external_links": []}
Aug. 14, 2023, 1:31 p.m. Added 35 {"external_links": []}
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July 31, 2023, 1:34 p.m. Added 35 {"external_links": []}
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July 17, 2023, 1:34 p.m. Added 35 {"external_links": []}
July 10, 2023, 1:26 p.m. Added 35 {"external_links": []}
July 3, 2023, 1:26 p.m. Added 35 {"external_links": []}
June 26, 2023, 1:26 p.m. Added 35 {"external_links": []}
June 19, 2023, 1:27 p.m. Added 35 {"external_links": []}
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April 17, 2023, 1:28 p.m. Added 35 {"external_links": []}
April 10, 2023, 1:25 p.m. Added 35 {"external_links": []}
April 3, 2023, 1:26 p.m. Added 35 {"external_links": []}
Jan. 28, 2023, 11:09 a.m. Created 43 [{"model": "core.projectfund", "pk": 29171, "fields": {"project": 6389, "organisation": 2, "amount": 0, "start_date": "2019-09-30", "end_date": "2023-12-30", "raw_data": 47700}}]
Jan. 28, 2023, 10:52 a.m. Updated 35 {"title": ["Understanding the cycling and degradation of anode nanomaterials for Li and Na-ion batteries with in-situ and in-operando microscopy and spectroscopy", "Understanding the cycling and degradation of atomically thin 2D/1D anodes for Li & Na-ion batteries with in-situ & operando scanning probe microscopy"], "description": ["\nClimate change induced by uncontrolled fossil fuel use is one of the most significant global threats of our age but the storage of energy from renewable sources using batteries could offer a solution to sustainably meeting our energy storage needs. However, to achieve this, a paradigm shift in battery electrode technology is required with the deployment of high capacity materials essential. \nThe unique properties of 2D, 1D and 0D materials, isolated from their bulk layered materials, has sparked a materials revolution. They have distinctive properties, high surface areas, and can be assembled into functional films and electrodes. It is therefore anticipated that these materials will play an enormous role in future energy generation and storage. Recent work has presented a new method for forming 2D nanosheets in liquids, [1] and phosperene nano-ribbons (PNRs) with unique characteristics [2]. In this PhD project, the student will develop a number of ways for manipulating these nanomaterials into electrode coatings and films by electroplating or depositing on chemical or charge patterned surfaces, with scalable electrochemical application in mind.\n Additionally the student will aim to develop a better understanding the fundamental processes that define the ability of high-capacity carbons and metal (e.g. tin) or semi-metal (e.g. silicon, germanium) nanoparticles to uptake lithium and sodium and to endure long-term electrochemical charge-discharge without rapid degradation, will enable us to design them into efficient new electrodes.\nBy utilising atmospherically controlled electrochemical atomic force microscopy (EC-AFM) and the related technique 'SECM-AFM' (methods few labs in the UK are set up to exploit) the successful candidate will image and electrochemically characterise nanoscale changes at the surface of real battery electrodes during their charge-discharge cycle. This will show the effects of material micro/nano-structure change (swelling, cracking, surface layer formation, metal plating) on cell performance. When combined with x-ray photoelectron spectroscopy (XPS), possible in this project without air exposure, we will quantitatively characterise the chemical composition of the same particles at various states of charge (ex-situ). This will enable a truly representative understanding of the materials' chemical and mechanical properties. Student time will be split between UCL, where EC-AFM and XPS will be undertaken and ICL, where alloy anodes will be synthesised. These core techniques will be complemented by a wide array of other characterisation tools at both institutions including electron microscopy (SEM, TEM), x-ray computed tomography, x-ray diffraction, micro-Raman spectroscopy, EIS and a broad range of electrochemical techniques.\nThe student will develop multidisciplinary skills in synthesis, battery fabrication, electrochemistry and advanced characterisation for energy storage, whilst developing strong links with industry and academia.\n\n\n [1] Cullen PL et al...Howard CA, "Ionic solutions of two-dimensional materials." Nature Chemistry 9.3 (2017)\n[2] Watts MC et al...Howard CA "Production of phospherene nanoribbons" Nature 568, 216-220 (2019).\n\n", "\nThe unique properties of 2D, 1D and 0D materials, isolated from their bulk layered materials, has sparked a materials revolution. They have distinctive properties, high surface areas, electrical conductivity and mechanical stability, and can be assembled into functional films and electrodes. It is therefore anticipated that these materials will play an enormous role in future energy generation and storage. Recent work has presented a new method for forming 2D nanosheets in liquids, [1] and 1D phosperene nano-ribbons (PNRs) with unique characteristics [2].\n\nBy utilising atmospherically controlled electrochemical atomic force microscopy (EC-AFM)[3] and the related technique 'SECM-AFM' (methods few labs in the UK are set up to exploit) the successful candidate will image and electrochemically characterise nanoscale changes at the surface of 2D and 1D nanomaterial electrodes during their charge-discharge cycle. This will show the effects of material micro/nano-structure change (swelling, cracking, surface layer formation, metal plating) on cell performance. When combined with x-ray photoelectron spectroscopy (XPS), possible in this project without air exposure, we will quantitatively characterise the chemical composition of the same particles at various states of charge (ex-situ). This will enable a truly representative understanding of the materials' chemical and mechanical properties. These core techniques will be complemented by a wide array of other characterisation tools at both institutions including electron microscopy (SEM, TEM), x-ray diffraction, micro-Raman spectroscopy, EIS and a broad range of electrochemical techniques.\n\nIn this project, the student will develop multidisciplinary skills in synthesis, battery fabrication, electrochemistry and advanced characterisation for energy storage, whilst developing strong links with industry and academia.\n\n[1] Cullen PL et al...Howard CA, "Ionic solutions of two-dimensional materials." Nature Chemistry 9.3 (2017)\n\n[2] Watts MC et al...Howard CA "Production of phospherene nanoribbons" Nature 568, 216-220 (2019).\n\n[3] Zhang et al.... Miller TS "Operando Electrochemical Atomic Force Microscopy of Solid-Electrolyte Interphase Formation on Graphite Anodes: The Evolution of SEI Morphology and Mechanical Properties" ACS App Mat. 1944-8244 (2021)\n\n"]}
Jan. 28, 2023, 10:52 a.m. Added 35 {"external_links": []}
April 11, 2022, 3:48 a.m. Created 43 [{"model": "core.projectfund", "pk": 21304, "fields": {"project": 6389, "organisation": 2, "amount": 0, "start_date": "2019-09-30", "end_date": "2023-12-30", "raw_data": 29757}}]
April 11, 2022, 3:48 a.m. Created 41 [{"model": "core.projectorganisation", "pk": 80578, "fields": {"project": 6389, "organisation": 1998, "role": "LEAD_ORG"}}]
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April 11, 2022, 1:48 a.m. Updated 35 {"title": ["", "Understanding the cycling and degradation of anode nanomaterials for Li and Na-ion batteries with in-situ and in-operando microscopy and spectroscopy"], "description": ["", "\nClimate change induced by uncontrolled fossil fuel use is one of the most significant global threats of our age but the storage of energy from renewable sources using batteries could offer a solution to sustainably meeting our energy storage needs. However, to achieve this, a paradigm shift in battery electrode technology is required with the deployment of high capacity materials essential. \nThe unique properties of 2D, 1D and 0D materials, isolated from their bulk layered materials, has sparked a materials revolution. They have distinctive properties, high surface areas, and can be assembled into functional films and electrodes. It is therefore anticipated that these materials will play an enormous role in future energy generation and storage. Recent work has presented a new method for forming 2D nanosheets in liquids, [1] and phosperene nano-ribbons (PNRs) with unique characteristics [2]. In this PhD project, the student will develop a number of ways for manipulating these nanomaterials into electrode coatings and films by electroplating or depositing on chemical or charge patterned surfaces, with scalable electrochemical application in mind.\n Additionally the student will aim to develop a better understanding the fundamental processes that define the ability of high-capacity carbons and metal (e.g. tin) or semi-metal (e.g. silicon, germanium) nanoparticles to uptake lithium and sodium and to endure long-term electrochemical charge-discharge without rapid degradation, will enable us to design them into efficient new electrodes.\nBy utilising atmospherically controlled electrochemical atomic force microscopy (EC-AFM) and the related technique 'SECM-AFM' (methods few labs in the UK are set up to exploit) the successful candidate will image and electrochemically characterise nanoscale changes at the surface of real battery electrodes during their charge-discharge cycle. This will show the effects of material micro/nano-structure change (swelling, cracking, surface layer formation, metal plating) on cell performance. When combined with x-ray photoelectron spectroscopy (XPS), possible in this project without air exposure, we will quantitatively characterise the chemical composition of the same particles at various states of charge (ex-situ). This will enable a truly representative understanding of the materials' chemical and mechanical properties. Student time will be split between UCL, where EC-AFM and XPS will be undertaken and ICL, where alloy anodes will be synthesised. These core techniques will be complemented by a wide array of other characterisation tools at both institutions including electron microscopy (SEM, TEM), x-ray computed tomography, x-ray diffraction, micro-Raman spectroscopy, EIS and a broad range of electrochemical techniques.\nThe student will develop multidisciplinary skills in synthesis, battery fabrication, electrochemistry and advanced characterisation for energy storage, whilst developing strong links with industry and academia.\n\n\n [1] Cullen PL et al...Howard CA, "Ionic solutions of two-dimensional materials." Nature Chemistry 9.3 (2017)\n[2] Watts MC et al...Howard CA "Production of phospherene nanoribbons" Nature 568, 216-220 (2019).\n\n"], "extra_text": ["", "\n\n\n\n"], "status": ["", "Active"]}
April 11, 2022, 1:48 a.m. Added 35 {"external_links": [23526]}
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