Sayak Roy

Enabling Sodium Compensation, Stable CEI Formation and Fast‐Charging Using Thiocarbamate Additive in NVP Cathodes

Suryakanta Senapati, Sayak Roy, Nandana Manoj, Sudip Barman

ABSTRACT To overcome the instability of sodium‐ion cathode materials due to sodium losses and an unstable cathode electrolyte interface, the cathode additive method is an efficient approach; however, finding a cost‐effective additive with a low decomposition potential remains a challenge. This work …

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Increasing the cyclic stability of sodium-ion battery by effective carbon coating on iron sulphide anode

Kala Maripi, Rajib Samanta, Sayak Roy, Sudip Barman

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Synthesis of Novel Two‐Dimensional Co–H 3 BTC–4,4′‐BiPy Metal Organic Framework and Its Derived Cobalt‐Based Nanostructured Catalyst for Glycerol Electrooxidation

Monolina Samanta, Biplab Kumar Manna, Supriya Panda, Manjunatha Kempasiddaiah et autres

Glycerol can be upcycled to various value‐added chemicals like glyceric acid, glyceraldehyde, dihydroxyacetone, tartronic acid and formic acid by the process of oxidation. These products have wide application in the pharmaceutical, leather auxiliary, food processing and agricultural industries. Whereas the thermal approaches …

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Silicon-doped lignin-derived hard carbon having enhanced interplanar spacing as a promising sodium-ion battery anode material

Sayak Roy, Suryakanta Senapati, Rajib Samanta, Sudip Barman

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MXene and Their Composites for Oxygen Evolution Reactions

Shrabani De, Sayak Roy, Ganesh Chandra Nayak

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Electrospun N‐Doped Carbon–Carbon Nanofibers with Enhanced Porosity for High‐Performance Zinc‐Ion Hybrid Supercapacitor Application

Sayak Roy, Rajib Samanta, Sudip Barman

Zinc‐ion hybrid supercapacitors (ZIHSCs) represent a promising frontier in high‐performance energy storage, offering greater energy density characteristic shown by batteries alongside high power yield and extended life of supercapacitors. Carbon materials, due to their inexpensiveness, abundance, and excellent conductivity, have been promising …

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Mixed transition metal phosphides: recent progress and frontiers in secondary batteries and supercapacitors

Chandan Kumar Maity, Sayak Roy, Amrita De Adhikari, Khusboo Kumari et autres

Metal phosphides, which have been extensively explored for energy storage applications such as batteries and supercapacitors, possess unique physicochemical, morphological, and electrochemical properties. Among other uses, applying mixed transition metal phosphides (MTMPs) as active electrode materials for electrochemical energy storage devices remains …

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Sulfur and Nitrogen Codoped Hard Carbon with Expanded Interlayer Distance as an Effective Anode Material for Sodium-Ion Batteries

Rajib Samanta, Sayak Roy, Sudip Barman

Development of sodium-ion battery (SIB) anodes using cost-effective and earth-abundant elements has gained a lot of attention nowadays. The most promising SIB anode materials still involve carbon-based materials. The graphite-based materials used in lithium-ion batteries do not work well for SIB anodes …

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Electrospun highly porous carbon nitride-carbon nanofibers for high performance supercapacitor application

Sayak Roy, Prajnashree Panda, Sudip Barman

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Plasmonic Au3Cu Ordered Nanocrystals Induced Phase Transformation in 2D‐MoS2 for Efficient Hydrogen Evolution

Ummiya Qamar, Sayak Roy, Sooraj Kumar, Bratindranath Mukherjee et autres

Abstract The synthesis of ordered gold‐copper (Au3Cu) alloy nanocrystals (≈10 nm) is reported and used in the semiconductor (2H) to metallic (1T) phase transformation of an atomically thin large‐area 2D‐MoS2 grown via CVD technique. The ordered Au3Cu nanocrystals are dispersed over 2D‐MoS2, …

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Phosphorus and Nitrogen Codoped Porous Carbon Nanosheets for Energy Storage and Gas Adsorption

Prajnashree Panda, Sayak Roy, Sudip Barman

Heteroatom-doped porous carbon has emerged as a promising candidate for capacitive energy and gas storage applications because of its abundant availability and cost-effectiveness. In this study, a solvothermal strategy was adopted to synthesize phosphorus (P) and nitrogen (N) codoped activated carbon (PCN- …

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Numerical investigation for performance and emission characteristics of a diesel engine fueled with soybean methyl ester biodiesel - Diesel blend

Kalyan Kusum Mukherjee, Pritam Bhattacharjee, Joydeep Roychowdhury, Biswadip Das et autres

The usage of conventional fossil fuels is reducing day by day due to the overwhelming use of business and personal automobiles for transportation, delivery, and ambulance services. Factories also require conventional fuels to run their machines, which serve the primary purpose of …

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