R. Vasant Kumar
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View article: Li<sup>+</sup> Quasi‐Grotthuss Topochemistry Transport Enables Direct Regeneration of Spent Lithium‐Ion Battery Cathodes
Li<sup>+</sup> Quasi‐Grotthuss Topochemistry Transport Enables Direct Regeneration of Spent Lithium‐Ion Battery Cathodes Open
Direct regeneration of spent lithium‐ion batteries offers economic benefits and a reduced CO 2 footprint. Surface prelithiation, particularly through the molten salt method, is critical in enhancing spent cathode repair during high‐tempera…
View article: Li<sup>+</sup> Quasi‐Grotthuss Topochemistry Transport Enables Direct Regeneration of Spent Lithium‐Ion Battery Cathodes
Li<sup>+</sup> Quasi‐Grotthuss Topochemistry Transport Enables Direct Regeneration of Spent Lithium‐Ion Battery Cathodes Open
Direct regeneration of spent lithium‐ion batteries offers economic benefits and a reduced CO 2 footprint. Surface prelithiation, particularly through the molten salt method, is critical in enhancing spent cathode repair during high‐tempera…
View article: An Automated and Portable Platform for Rapid Cell-Free DNA Isolation and Its Application in Microbial DNA Sequencing from Human Blood Samples
An Automated and Portable Platform for Rapid Cell-Free DNA Isolation and Its Application in Microbial DNA Sequencing from Human Blood Samples Open
Background The prompt identification of pathogens in human circulation in a clinically deployable format remains an unmet clinical need. The established test for infection diagnostics remains blood culture, which typically takes 2-4 days a…
View article: Enhanced Structure/Interfacial Properties of Single‐Crystal Ni‐Rich <scp>LiNi<sub>0</sub></scp><sub>.</sub><scp><sub>92</sub>Co<sub>0</sub></scp><sub>.</sub><scp><sub>04</sub>Mn<sub>0</sub></scp><sub>.</sub><scp><sub>04</sub>O<sub>2</sub></scp> Cathodes Synthesized Via <scp>LiCl‐NaCl</scp> Molten‐Salt Method
Enhanced Structure/Interfacial Properties of Single‐Crystal Ni‐Rich <span>LiNi<sub>0</sub></span><sub>.</sub><span><sub>92</sub>Co<sub>0</sub></span><sub>.</sub><span><sub>04</sub>Mn<sub>0</sub></span><sub>.</sub><span><sub>04</sub>O<sub>2</sub></span> Cathodes Synthesized Via <span>LiCl‐NaCl</span> Molten‐Salt Method Open
Arising from the increasing demand for electric vehicles (EVs), Ni‐rich LiNi x Co y Mn z O 2 (NCM, x + y + z = 1, x ≥ 0.8) cathode with greatly increased energy density are being researched and commercialized for lithium‐ion batteries (LIB…
View article: Inkjet Printing Infiltration of the Doped Ceria Interlayer in Commercial Anode-Supported SOFCs
Inkjet Printing Infiltration of the Doped Ceria Interlayer in Commercial Anode-Supported SOFCs Open
Single-step inkjet printing infiltration with doped ceria Ce0.9Ye0.1O1.95 (YDC) and cobalt oxide (CoxOy) precursor inks was performed in order to modify the properties of the doped ceria interlayer in commercial (50 × 50 × 0.5 mm3 size) an…
View article: Global and Local Corrosion of Welded Joints of High-Strength Low-Alloy Automotive Steel
Global and Local Corrosion of Welded Joints of High-Strength Low-Alloy Automotive Steel Open
Global and local corrosion techniques were used to study the corrosion behavior of weld joints of a high-strength low-alloy steel (LNE500) typically used in the automotive industry in Brazil. The welded joints were prepared by gas metal ar…
View article: Iron Selenide Microcapsules as Universal Conversion‐Typed Anodes for Alkali Metal‐Ion Batteries
Iron Selenide Microcapsules as Universal Conversion‐Typed Anodes for Alkali Metal‐Ion Batteries Open
Rechargeable alkali metal‐ion batteries (AMIBs) are receiving significant attention owing to their high energy density and low weight. The performance of AMIBs is highly dependent on the electrode materials. It is, therefore, quite crucial…
View article: 2021 roadmap on lithium sulfur batteries
2021 roadmap on lithium sulfur batteries Open
Batteries that extend performance beyond the intrinsic limits of Li-ion batteries are among the most important developments required to continue the revolution promised by electrochemical devices. Of these next-generation batteries, lithiu…
View article: Microwave- and Formaldehyde-Assisted Synthesis of Ag–Ag<sub>3</sub>PO<sub>4</sub> with Enhanced Photocatalytic Activity for the Degradation of Rhodamine B Dye and Crude Oil Fractions
Microwave- and Formaldehyde-Assisted Synthesis of Ag–Ag<sub>3</sub>PO<sub>4</sub> with Enhanced Photocatalytic Activity for the Degradation of Rhodamine B Dye and Crude Oil Fractions Open
The release of crude oil and water-soluble dyes into our marine environment is a major global problem. An efficient semiconductor Ag-Ag3PO4 photocatalyst was synthesized using formaldehyde as a reducing agent to form surface active Ag on A…
View article: Pd-doped zinc oxide nanostructures for liquefied petroleum gas detection at low temperature
Pd-doped zinc oxide nanostructures for liquefied petroleum gas detection at low temperature Open
One dimensional vertically aligned zinc oxide (ZnO) nanorods sensor was fabricated on aluminum foil as substrate by solvothermal process and their liquefied petroleum gas (LPG) detection characteristics were studied. In this research the r…
View article: Rational approach to guest confinement inside MOF cavities for low-temperature catalysis
Rational approach to guest confinement inside MOF cavities for low-temperature catalysis Open
Geometric or electronic confinement of guests inside nanoporous hosts promises to deliver unusual catalytic or opto-electronic functionality from existing materials but is challenging to obtain particularly using metastable hosts, such as …
View article: Correction: Ahmad, I.A., et al. Non-Isothermal Crystallisation Kinetics of Carbon Black-Graphene-Based Multimodal-Polyethylene Nanocomposites. Nanomaterials, 2019, 9, 100
Correction: Ahmad, I.A., et al. Non-Isothermal Crystallisation Kinetics of Carbon Black-Graphene-Based Multimodal-Polyethylene Nanocomposites. Nanomaterials, 2019, 9, 100 Open
In the published paper [1], there was a typo error mistake in Equation (5), which was supposed to be expressed as “ log Z t + n log t = log K T − m log Φ ” instead of “log Zt + n log t = log KT − ml” [...]
View article: Enhanced Sulfur Transformation by Multifunctional FeS<sub>2</sub>/FeS/S Composites for High‐Volumetric Capacity Cathodes in Lithium–Sulfur Batteries
Enhanced Sulfur Transformation by Multifunctional FeS<sub>2</sub>/FeS/S Composites for High‐Volumetric Capacity Cathodes in Lithium–Sulfur Batteries Open
Lithium–sulfur batteries are currently being explored as promising advanced energy storage systems due to the high theoretical specific capacity of sulfur. However, achieving a scalable synthesis for the sulfur electrode material whilst ma…
View article: Non-Isothermal Crystallisation Kinetics of Carbon Black- Graphene-Based Multimodal-Polyethylene Nanocomposites
Non-Isothermal Crystallisation Kinetics of Carbon Black- Graphene-Based Multimodal-Polyethylene Nanocomposites Open
The effect of carbon black (CB) and microwave-induced plasma graphene (g) on the crystallisation kinetics of the multimodal high-density polyethylene was studied under non-isothermal conditions. The non-isothermal crystallisation behaviour…
View article: Source Data for "Rational Approach to Guest Confinement inside MOF Cavities for Low-Temperature Catalysis"
Source Data for "Rational Approach to Guest Confinement inside MOF Cavities for Low-Temperature Catalysis" Open
This is a source data fileset for a work in Nature Communications titled "Rational Approach to Guest Confinement inside MOF Cavities for Low-Temperature Catalysis". https://doi.org/10.1038/s41467-019-08972-x
View article: Janus nanostructures for heterogeneous photocatalysis
Janus nanostructures for heterogeneous photocatalysis Open
Water treatment, the hydrogen evolution reaction, and carbon capture are examples of the potential applications for solar photocatalysis. This has led to significant effort in the search for suitable heterogeneous catalysts. However, mater…
View article: Advancing the Use of High-Performance Graphene-Based Multimodal Polymer Nanocomposite at Scale
Advancing the Use of High-Performance Graphene-Based Multimodal Polymer Nanocomposite at Scale Open
The production of an innovative, high-performance graphene-based polymer nanocomposite using cost-effective techniques was pursued in this study. Well-dispersed and uniformly distributed graphene platelets within a polymer matrix, with str…
View article: Tailoring SOFC Electrode Microstructures for Improved Performance
Tailoring SOFC Electrode Microstructures for Improved Performance Open
The key technical challenges that fuel cell developers need to address are performance, durability, and cost. All three need to be achieved in parallel; however, there are often competitive tensions, e.g., performance is achieved at the ex…
View article: Bottom-up Formation of Carbon-Based Structures with Multilevel Hierarchy from MOF–Guest Polyhedra
Bottom-up Formation of Carbon-Based Structures with Multilevel Hierarchy from MOF–Guest Polyhedra Open
Three-dimensional carbon-based structures have proven useful for tailoring material properties in structural mechanical and energy storage applications. One approach to obtain them has been by carbonization of selected metal-organic framew…
View article: Lead‐Carbon Batteries: Synthesis of Nanostructured PbO@C Composite Derived from Spent Lead‐Acid Battery for Next‐Generation Lead‐Carbon Battery (Adv. Funct. Mater. 9/2018)
Lead‐Carbon Batteries: Synthesis of Nanostructured PbO@C Composite Derived from Spent Lead‐Acid Battery for Next‐Generation Lead‐Carbon Battery (Adv. Funct. Mater. 9/2018) Open
In article number 1705294, Jiakuan Yang and co-workers develop an environmentally friendly strategy to prepare a lead oxide and carbon (PbO@C) composite by pyrolyzing lead citrate precursors recycled from discarded lead-acid batteries. The…
View article: Direct Electrochemical Preparation of Nanostructured Silicon Carbide and Its Nitridation Behavior
Direct Electrochemical Preparation of Nanostructured Silicon Carbide and Its Nitridation Behavior Open
Silicon carbide was synthesized from mixtures of SiO2 and graphite by applying the concept of the FFC-Cambridge process and several fundamental aspects of the synthesis route were investigated. Porous disks composed of powders of SiO2 and …
View article: Semi-Interpenetrating Polymer Networks for Enhanced Supercapacitor Electrodes
Semi-Interpenetrating Polymer Networks for Enhanced Supercapacitor Electrodes Open
Conducting polymers show great promise as supercapacitor materials due to their high theoretical specific capacitance, low cost, toughness, and flexibility. Poor ion mobility, however, can render active material more than a few tens of nan…
View article: Li‐S‐Batteries: Advanced Lithium–Sulfur Batteries Enabled by a Bio‐Inspired Polysulfide Adsorptive Brush (Adv. Funct. Mater. 46/2016)
Li‐S‐Batteries: Advanced Lithium–Sulfur Batteries Enabled by a Bio‐Inspired Polysulfide Adsorptive Brush (Adv. Funct. Mater. 46/2016) Open
On page 8418, R. Chen, R. V. Kumar, and co-workers describe a bio-inspired chemi-functional interlayer for lithium sulfur batteries. The adsorption of migrating polysulfides (yellow) on the surface of brush-like zinc oxide nanowire arrays …