Publications
364 results found
Chakrabarti BK, Feng J, Kalamaras E, et al., 2020, Hybrid redox flow cells with enhanced electrochemical performance via binderless and electrophoretically deposited nitrogen-doped graphene on carbon paper electrodes., ACS Applied Materials and Interfaces, Vol: 12, Pages: 53869-53878, ISSN: 1944-8244
Hybrid redox flow cells (HRFC) are key enablers for the development of reliable large-scale energy storage systems; however, their high cost, limited cycle performance, and incompatibilities associated with the commonly used carbon-based electrodes undermine HRFC's commercial viability. While this is often linked to lack of suitable electrocatalytic materials capable of coping with HRFC electrode processes, the combinatory use of nanocarbon additives and carbon paper electrodes holds new promise. Here, by coupling electrophoretically deposited nitrogen-doped graphene (N-G) with carbon electrodes, their surprisingly beneficial effects on three types of HRFCs, namely, hydrogen/vanadium (RHVFC), hydrogen/manganese (RHMnFC), and polysulfide/air (S-Air), are revealed. RHVFCs offer efficiencies over 70% at a current density of 150 mA cm-2 and an energy density of 45 Wh L-1 at 50 mA cm-2, while RHMnFCs achieve a 30% increase in energy efficiency (at 100 mA cm-2). The S-Air cell records an exchange current density of 4.4 × 10-2 mA cm-2, a 3-fold improvement of kinetics compared to the bare carbon paper electrode. We also present cost of storage at system level compared to the standard all-vanadium redox flow batteries. These figures-of-merit can incentivize the design, optimization, and adoption of high-performance HRFCs for successful grid-scale or renewable energy storage market penetration.
Jensen ACS, Au H, Gartner S, et al., 2020, Solvation of NaPF<sub>6</sub> in Diglyme Solution for Battery Electrolytes, BATTERIES & SUPERCAPS, Vol: 3, Pages: 1306-1310
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- Citations: 11
Schlee P, Hosseinaei O, O' Keefe CA, et al., 2020, Hardwood <i>versus</i> softwood Kraft lignin - precursor-product relationships in the manufacture of porous carbon nanofibers for supercapacitors, JOURNAL OF MATERIALS CHEMISTRY A, Vol: 8, Pages: 23543-23554, ISSN: 2050-7488
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- Citations: 23
Tu Y, Kyle C, Luo H, et al., 2020, Ammonia Gas Sensor Response of a Vertical Zinc Oxide Nanorod-Gold Junction Diode at Room Temperature, ACS SENSORS, Vol: 5, Pages: 3568-3575, ISSN: 2379-3694
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- Citations: 41
Yang P, Wang R, Hangyu Z, et al., 2020, Photochemical Construction of Nitrogen-Containing Nanocarbons for Carbon Dioxide Photoreduction, ACS CATALYSIS, Vol: 10, Pages: 12706-12715, ISSN: 2155-5435
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- Citations: 29
Chitre A, Freake D, Lander L, et al., 2020, Towards a More Sustainable Lithium-Ion Battery Future: Recycling LIBs from Electric Vehicles, BATTERIES & SUPERCAPS, Vol: 3, Pages: 1124-1125
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- Citations: 1
Nicolae SA, Szilagyi PA, Titirici MM, 2020, Soft templating production of porous carbon adsorbents for CO<sub>2</sub> and H<sub>2</sub>S capture, CARBON, Vol: 169, Pages: 193-204, ISSN: 0008-6223
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- Citations: 29
Chitre A, Freake D, Lander L, et al., 2020, Cover Picture: Towards a More Sustainable LithiumāIon Battery Future: Recycling LIBs from Electric Vehicles (Batteries & Supercaps 11/2020), Batteries & Supercaps, Vol: 3, Pages: 1120-1120, ISSN: 2566-6223
Alptekin H, Au H, Jensen ACS, et al., 2020, Sodium Storage Mechanism Investigations through Structural Changes in Hard Carbons, ACS APPLIED ENERGY MATERIALS, Vol: 3, Pages: 9918-9927, ISSN: 2574-0962
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- Citations: 53
Guo Q, Luo H, Zhang J, et al., 2020, The role of carbon dots - derived underlayer in hematite photoanodes, NANOSCALE, Vol: 12, Pages: 20220-20229, ISSN: 2040-3364
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- Citations: 6
Urbina-Blanco CA, Jilani SZ, Speight IR, et al., 2020, A Diverse View of Science to Catalyse Change, ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, Vol: 59, Pages: 18306-18310, ISSN: 1433-7851
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- Citations: 4
Xie F, Xu Z, Guo Z, et al., 2020, Hard carbons for sodium-ion batteries and beyond, PROGRESS IN ENERGY, Vol: 2
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- Citations: 80
Au H, Alptekin H, Jensen ACS, et al., 2020, A revised mechanistic model for sodium insertion in hard carbons, Energy and Environmental Science, Vol: 13, Pages: 3469-3479, ISSN: 1754-5692
Hard carbons have shown considerable promise as anodes for emerging sodium-ion battery technologies. Current understanding of sodium-storage behaviour in hard carbons attributes capacity to filling of graphitic interlayers and pores, and adsorption at defects, although there is still considerable debate regarding the voltages at which these mechanisms occur. Here, ex situ23Na solid-state NMR and total scattering studies on a systematically tuned series of hard carbons revealed the formation of increasingly metallic sodium clusters in direct correlation to the growing pore size, occurring only in samples which exhibited a low voltage plateau. Combining experimental results with DFT calculations, we propose a revised mechanistic model in which sodium ions store first simultaneously and continuously at defects, within interlayers and on pore surfaces. Once these higher energy binding sites are filled, pore filling occurs during the plateau region, where the densely confined sodium takes on a greater degree of metallicity.
Urbina-Blanco CA, Jilani SZ, Speight IR, et al., 2020, A diverse view of science to catalyse change: valuing diversity leads to scientific excellence, the progress of science and, most importantly, it is simply the right thing to do. We must value diversity not only in words, but also in actions, CANADIAN JOURNAL OF CHEMISTRY, Vol: 98, Pages: 597-600, ISSN: 0008-4042
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- Citations: 1
Urbina-Blanco CA, Jilani SZ, Speight IR, et al., 2020, A diverse view of science to catalyse change, CROATICA CHEMICA ACTA, Vol: 93, Pages: 77-81, ISSN: 0011-1643
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- Citations: 1
Urbina-Blanco CA, Jilani SZ, Speight IR, et al., 2020, A diverse view of science to catalyse change, CHEMICAL SCIENCE, Vol: 11, Pages: 9043-9047, ISSN: 2041-6520
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- Citations: 3
Urbina-Blanco CA, Jilani SZ, Speight IR, et al., 2020, A diverse view of science to catalyse change, NATURE CHEMISTRY, Vol: 12, Pages: 773-776, ISSN: 1755-4330
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- Citations: 4
Pfersich J, Arauzo PJ, Lucian M, et al., 2020, Hydrothermal Conversion of Spent Sugar Beets into High-Value Platform Molecules, MOLECULES, Vol: 25
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- Citations: 11
Urbina-Blanco CA, Jilani SZ, Speight IR, et al., 2020, A Diverse View of Science to Catalyse Change, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 142, Pages: 14393-14396, ISSN: 0002-7863
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- Citations: 17
Guo S, Li Y, Tang S, et al., 2020, Monitoring Hydrogen Evolution Reaction Intermediates of Transition Metal Dichalcogenides via Operando Raman Spectroscopy, ADVANCED FUNCTIONAL MATERIALS, Vol: 30, ISSN: 1616-301X
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- Citations: 61
Chitre A, Freake D, Lander L, et al., 2020, Towards a more sustainable lithium-ion battery future: recycling LIBs from eectric vehicles, Batteries & Supercaps, Vol: 3, Pages: 1126-1136, ISSN: 2566-6223
With the number of electric vehicles (EVs) projected to increase 25-fold by 2030, effective recycling processes need to be developed to conserve the critical raw materials (in particular, cobalt and lithium) used to make lithium-ion batteries (LIBs). Industrial recycling of LIBs is underdeveloped due to two main reasons: i) complex and particularly variable cathodic chemistries; ii) physically different shapes and sizes of battery packs which are not designed for easy disassembly. Present processes use pyrometallurgical and/or hydrometallurgical recycling methods, with the latter being widely seen as the future in view of changing battery chemistries to lower cobalt contents. As such, this paper focuses on improvements, including sorting of batteries and using alternative water-soluble binders, to enhance LIB material recovery from hydrometallurgical processes. This review promotes the adoption of a holistic design approach for LIBs that includes ease of end-of-life recyclability.
Nicolae SA, Au H, Modugno P, et al., 2020, Recent advances in hydrothermal carbonisation: from tailored carbon materials and biochemicals to applications and bioenergy, GREEN CHEMISTRY, Vol: 22, Pages: 4747-4800, ISSN: 1463-9262
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- Citations: 104
Luo H, Liu Y, Dimitrov SD, et al., 2020, Pt single-atoms supported on nitrogen-doped carbon dots for highly efficient photocatalytic hydrogen generation, JOURNAL OF MATERIALS CHEMISTRY A, Vol: 8, Pages: 14690-14696, ISSN: 2050-7488
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- Citations: 52
Wang B, Guo S, Xin X, et al., 2020, Heat Diffusion-Induced Gradient Energy Level in Multishell Bisulfides for Highly Efficient Photocatalytic Hydrogen Production, ADVANCED ENERGY MATERIALS, Vol: 10, ISSN: 1614-6832
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- Citations: 50
Pang Y, Wang K, Xie H, et al., 2020, Mesoporous Carbon Hollow Spheres as Efficient Electrocatalysts for Oxygen Reduction to Hydrogen Peroxide in Neutral Electrolytes, ACS CATALYSIS, Vol: 10, Pages: 7434-7442, ISSN: 2155-5435
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- Citations: 101
Olszewski MP, Nicolae SA, Arauzo PJ, et al., 2020, Wet and dry? Influence of hydrothermal carbonization on the pyrolysis of spent grains, JOURNAL OF CLEANER PRODUCTION, Vol: 260, ISSN: 0959-6526
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- Citations: 41
Luo H, Guo Q, Szilagyi PA, et al., 2020, Carbon Dots in Solar-to-Hydrogen Conversion, TRENDS IN CHEMISTRY, Vol: 2, Pages: 623-637
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- Citations: 37
Roman S, Valente Nabais JM, Ledesma B, et al., 2020, Surface Interactions during the Removal of Emerging Contaminants by Hydrochar-Based Adsorbents, MOLECULES, Vol: 25
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- Citations: 14
Bray JM, Doswell CL, Pavlovskaya GE, et al., 2020, Operando visualisation of battery chemistry in a sodium-ion battery by <SUP>23</SUP>Na magnetic resonance imaging, NATURE COMMUNICATIONS, Vol: 11
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- Citations: 47
Luo H, Dimitrov S, Daboczi M, et al., 2020, Nitrogen-Doped Carbon Dots/TiO<sub>2</sub> Nanoparticle Composites for Photoelectrochemical Water Oxidation, ACS APPLIED NANO MATERIALS, Vol: 3, Pages: 3371-3381, ISSN: 2574-0970
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- Citations: 60
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