Smart self-healing polymers: innovations in material design and applications for electronic skin and energy devices Sundararajan Ashok Kumar, Manoj Singh Yadav, Subrata Karmakar, Aniruddha Kundu, Vinodkumar Etacheri, Satyajit Ratha, Vijay Kumar Pal, Surjit Sahoo Journal of Materials Chemistry A, 2026 Smart self-healing polymers offer sustainable solutions for energy storage and sensing by autonomously repairing damage while enhancing durability and reliability, and enabling next-generation power devices and flexible electronic skin sensors.
Enriched photocatalytic degradation of methylene blue by reduced graphene oxide supported gold titania nanocomposite Tapan Kumar Behera, Satyajit Ratha, Pramoda Kumar Satapathy, Priyabrat Mohapatra Fullerenes Nanotubes and Carbon Nanostructures, 2026 A facile co-precipitation method was employed for the synthesis of reduced graphene oxide-supported gold -doped titania nanocomposite. The surface morphology (SEM) confirms the uniform distribution of nanoparticles on the reduced graphene oxide support and crystallinity study (XRD) verified the anatase phase of TiO2. The UV–Vis diffuse reflectance spectroscopy (UV–Vis DRS) and photoluminescence (PL) experiments confirmed the decrease in ideal band gap energy of TiO2 towards red shift. The red shift of band gap energy from bare TiO2 catalyst (2.72 eV) to Au-TiO2 catalyst (1.9 eV) and further to reduced graphene supported Au-TiO2 catalyst (1.76 eV) demonstrates a pronounced greater absorption aptitude of the reduced graphene supported Au-TiO2 catalyst over an extensive range of the visible spectrum. Further, reduced graphene oxide supported Au-TiO2 catalyst exhibited superior photocatalytic degradation (90%) toward methylene blue (MB) than Au-TiO2 catalyst (65%) and bare TiO2 catalyst (35%) within 90 minutes. This excellent enhanced red shift photocatalytic activity may be attributed to the introduction of new energy levels, surface plasmon resonance (SPR) effect of gold nanoparticles and Schottky junction formation relationship between the gold and titania interface. Methylene blue is degraded to nontoxic molecules by the effects of hydroxide (OH−) and superoxide (O2−) active radicals. Again, reduced graphene supported Au-TiO2 composites possess better reusability stability than other two photo-catalysts.
Corrosion inhibition properties of graphene and reduced graphene oxide on aluminum surface: a comparative analysis from experimental and theoretical studies Balaram Polai, Aiswarya Samal, Satyajit Ratha, Debashish Das, Saroj Kumar Nayak Nano Express, 2025 The corrosion protection of metals has long been considered a key challenge for researchers at both industrial and academic levels. While numerous state-of-the-art corrosion protection techniques exist for metals like copper, iron, steel, and zinc, there are few reports on preventing aluminum (Al) from corrosion. This study introduces an innovative method for protecting aluminum from corrosion through the anodic electrochemical deposition of reduced graphene oxide (rGO) coatings. The anti-corrosion performance of rGO-coated aluminum (Al/rGO) substrates was examined in 1.0 M hydrochloric acid (HCl) and 1.0 M sodium chloride (NaCl) solutions, utilizing electrochemical techniques. The in situ reduction of the graphene oxide (GO) coatings has shown significantly enhanced corrosion protection for aluminum compared to uncoated surfaces. The experimental findings demonstrate that rGO coatings protect against corrosive substances due to their hydrophobicity, diffusion site blockage, and tortuous diffusion path mechanisms on the aluminum surface. Additionally, to gain further insight into this study, with the help of density functional theory (DFT), analysis has revealed the weaker binding of corrosive species, such as NaCl−, HCl molecules, and Cl− ions with graphene- as well as rGO-coated Al surfaces (Al/Gr and Al/rGO) in comparison to their stronger binding with the uncoated Al surface. The diffusion energy barrier study has shown that the corrosive species must go through a high diffusion energy barrier to react with Al/Gr and Al/rGO surfaces compared to the bare Al surface. The combined experimental and theoretical studies found that rGO strongly binds with the Al surface, thus providing favorable corrosion protection for the bare Al surface.
Metal-Free Electrode Materials for Electrochemical Biosensors Nanomaterials Based Sensing Platforms Towards the Efficient Detection of Biomolecules and Gases, 2022
Nanoparticles and their conjugates for biomedical applications: An advanced material for diagnosis and therapeutic treatment Nanoparticles and their Conjugates for Biomedical Applications an Advanced Material for Diagnosis and Therapeutic Treatment, 2019
Effect of electrolyte on electrochemical performance of solgel Al2O3 for supercapacitor application D Das, R Sharma, S Ratha, S Kerai, S Majhi, SK Nayak, K Parashar, ... Solid State Ionics 441, 117204 , 2026 2026
Fe-TiO 2 @graphene composite for visible-light-driven photocatalytic methylene blue degradation TK Behera, S Ratha, PK Satapathy, P Mohapatra Analytical Chemistry Letters 16 (1), 78-86 , 2026 2026
Smart self-healing polymers: innovations in material design and applications for electronic skin and energy devices SA Kumar, MS Yadav, S Karmakar, A Kundu, V Etacheri, S Ratha, VK Pal, ... Journal of Materials Chemistry A 14 (16), 9177-9206 , 2026 2026 Citations: 2
Large improvement in the charge storage performance of a CoSb 2 O 6–reduced graphene oxide (rGO) composite–probing the role of rGO through experiments and theoretical analyses S Sahoo, M Amrutha, S Ratha, B Chakraborty, SK Nayak Materials Advances 7 (4), 2068-2085 , 2026 2026 Citations: 2
Production of graphene oxide from graphite S Pattnaik, AK Samantara, S Ratha US Patent App. 18/943,053 , 2025 2025
Corrosion inhibition properties of graphene and reduced graphene oxide on aluminum surface: a comparative analysis from experimental and theoretical studies B Polai, A Samal, S Ratha, D Das, SK Nayak Nano Express 6 (1), 015024 , 2025 2025 Citations: 10
Surface Engineering of Graphene for Electrocatalysis: A Unique Process of Graphene Surface Functionalization for Sustainability AK Samantara, S Ratha, B Chakraborty Elsevier , 2025 2025
Mechanistic Insight into the Tuneable Electronic Properties of Chemically Functionalized Graphene Quantum Dots MR Sahoo, S Ratha, AK Samantara New Forms of Carbon, 199-217 , 2024 2024 Citations: 1
Process for producing graphene from graphite S Pattnaik, AK Samantara, S Ratha US Patent App. 18/483,783 , 2024 2024
Experimental and theoretical investigation on the charge storage performance of NiSb 2 O 6 and its reduced graphene oxide composite–a comparative analysis S Sahoo, S Ratha, G Sanyal, B Chakraborty, SK Nayak Physical Chemistry Chemical Physics 26 (48), 29962-29975 , 2024 2024 Citations: 4
Experimental and computational investigation on the charge storage performance of a novel Al 2 O 3 -reduced graphene oxide hybrid electrode S Ratha, S Sahoo, P Mane, B Polai, B Sathpathy, B Chakraborty, ... Scientific Reports 13 (1), 5283 , 2023 2023 Citations: 35
A comprehensive review on effective medium theories to find effective dielectric constant of composites JK Nayak, P Roy Chaudhuri, S Ratha, MR Sahoo Journal of Electromagnetic Waves and Applications 37 (2), 282-322 , 2023 2023 Citations: 40
Rational Design of Dynamic Bimetallic NiCoSe 2 /2D Ti 3 C 2 T x MXene Hybrids for a High-Performance Flexible Supercapacitor and Hydrogen Evolution Reaction R Samal, P Mane, S Ratha, B Chakraborty, CS Rout Energy & Fuels 36 (24), 15066-15079 , 2022 2022 Citations: 29
Self-assembled nanosheets of ZnCo2O4 as efficient sonophotocatalysts for day light dye degradation M Dhanasekar, S Ratha, CS Rout, SV Bhat Ceramics International 48 (19), 29460-29464 , 2022 2022 Citations: 9
Experimental and computational investigation on the charge storage performance of a novel Al2O3-grpahene hybrid electrode S Ratha, S Sahoo, P Mane, B Polai, B Sathpathy, B Chakraborty, ... 2022
Metal-Free Electrode Materials for Electrochemical Biosensors S Sahoo, S Ratha Nanomaterials-Based Sensing Platforms, 195-212 , 2022 2022
Nanomaterials-based sensing platforms: towards the efficient detection of biomolecules and gases AK Samantara, S Raj, S Ratha CRC Press , 2022 2022
Self-charging supercapacitors for smart electronic devices: A concise review on the recent trends and future sustainability S Sahoo, S Ratha, CS Rout, SK Nayak Journal of Materials Science 57 (7), 4399-4440 , 2022 2022 Citations: 70
Direct oxidation of cyclohexane to adipic acid by a WFeCoO (OH) catalyst: role of brønsted acidity and oxygen vacancies D Vernekar, M Dayyan, S Ratha, CV Rode, MA Haider, TS Khan, ... ACS Catalysis 11 (17), 10754-10766 , 2021 2021 Citations: 47
Enhanced oxygen evolution reaction with a ternary hybrid of patronite–carbon nanotube-reduced graphene oxide: a synergy between experiments and theory AK Samantara, JK Das, S Ratha, NK Jena, B Chakraborty, JN Behera ACS applied materials & interfaces 13 (30), 35828-35836 , 2021 2021 Citations: 17
MOST CITED SCHOLAR PUBLICATIONS
Supercapacitor electrodes based on layered tungsten disulfide-reduced graphene oxide hybrids synthesized by a facile hydrothermal method S Ratha, CS Rout ACS applied materials & interfaces 5 (21), 11427-11433 , 2013 2013 Citations: 500
Urea-Assisted Room Temperature Stabilized Metastable β-NiMoO 4 : Experimental and Theoretical Insights into its Unique Bifunctional Activity toward Oxygen … S Ratha, AK Samantara, KK Singha, AS Gangan, B Chakraborty, BK Jena, ... ACS applied materials & interfaces 9 (11), 9640-9653 , 2017 2017 Citations: 153
Novel Magnetic Retrievable Visible-Light-Driven Ternary Fe 3 O 4 @NiFe 2 O 4 /Phosphorus-Doped g-C 3 N 4 Nanocomposite Photocatalyst with Significantly … P Mishra, A Behera, D Kandi, S Ratha, K Parida Inorganic chemistry 59 (7), 4255-4272 , 2020 2020 Citations: 94
Supercapacitor: Instrumentation, Measurement and Performance Evaluation Techniques S Ratha, AK Samantara Springer , 2018 2018 Citations: 94
Supercapacitors based on patronite–reduced graphene oxide hybrids: experimental and theoretical insights S Ratha, SR Marri, NA Lanzillo, S Moshkalev, SK Nayak, JN Behera, ... Journal of materials chemistry A 3 (37), 18874-18881 , 2015 2015 Citations: 89
3D cuboidal vanadium diselenide embedded reduced graphene oxide hybrid structures with enhanced supercapacitor properties SR Marri, S Ratha, CS Rout, JN Behera Chemical Communications 53 (1), 228-231 , 2017 2017 Citations: 80
Emerging energy applications of two-dimensional layered materials DJ Late, CS Rout, D Chakravarty, S Ratha Can. Chem. Trans. 3 (2), 118-157 , 2015 2015 Citations: 77
Self-charging supercapacitors for smart electronic devices: A concise review on the recent trends and future sustainability S Sahoo, S Ratha, CS Rout, SK Nayak Journal of Materials Science 57 (7), 4399-4440 , 2022 2022 Citations: 70
Enhanced Pseudocapacitance of MoO 3 -Reduced Graphene Oxide Hybrids with Insight from Density Functional Theory Investigations A Pathak, AS Gangan, S Ratha, B Chakraborty, CS Rout The Journal of Physical Chemistry C 121 (35), 18992-19001 , 2017 2017 Citations: 69
Field emission properties of spinel ZnCo 2 O 4 microflowers S Ratha, RT Khare, MA More, R Thapa, DJ Late, CS Rout RSC advances 5 (7), 5372-5378 , 2015 2015 Citations: 67
Negative infrared photocurrent response in layered WS2/reduced graphene oxide hybrids S Ratha, AJ Simbeck, DJ Late, SK Nayak, CS Rout Applied Physics Letters 105 (24) , 2014 2014 Citations: 62
Materials Development for Active/Passive Components of a Supercapacitor: Background, Present Status and Future Perspective AK Samantara, S Ratha Springer , 2017 2017 Citations: 59
Efficient sono-photocatalytic degradation of methylene blue using nickel molybdate nanosheets under diffused sunlight M Dhanasekar, S Ratha, CS Rout, SV Bhat Journal of environmental chemical engineering 5 (3), 2997-3004 , 2017 2017 Citations: 53
Self-assembled flower-like ZnCo 2 O 4 hierarchical superstructures for high capacity supercapacitors S Ratha, CS Rout Rsc Advances 5 (105), 86551-86557 , 2015 2015 Citations: 48
Direct oxidation of cyclohexane to adipic acid by a WFeCoO (OH) catalyst: role of brønsted acidity and oxygen vacancies D Vernekar, M Dayyan, S Ratha, CV Rode, MA Haider, TS Khan, ... ACS Catalysis 11 (17), 10754-10766 , 2021 2021 Citations: 47
Physicochemical properties and supercapacitor behavior of electrochemically synthesized few layered graphene nanosheets SK Sahoo, S Ratha, CS Rout, A Mallik Journal of Solid State Electrochemistry 20 (12), 3415-3428 , 2016 2016 Citations: 46
Spinel NiCo2O4 nanorods for supercapacitor applications S Sahoo, S Ratha, CS Rout American Journal of Engineering and Applied Sciences 8 (3), 371-379 , 2015 2015 Citations: 45
High‐energy‐density supercapacitors based on patronite/single‐walled carbon nanotubes/reduced graphene oxide hybrids S Ratha, SR Marri, JN Behera, CS Rout European Journal of Inorganic Chemistry 2016 (2), 259-265 , 2016 2016 Citations: 43
Graphene-incorporated aluminum with enhanced thermal and mechanical properties for solar heat collectors SK Pradhan, MR Sahoo, S Ratha, B Polai, A Mitra, B Sathpathy, A Sahu, ... AIP Advances 10 (6) , 2020 2020 Citations: 42
A comprehensive review on effective medium theories to find effective dielectric constant of composites JK Nayak, P Roy Chaudhuri, S Ratha, MR Sahoo Journal of Electromagnetic Waves and Applications 37 (2), 282-322 , 2023 2023 Citations: 40