From Nov. 2011 to 2018 he worked as a Postdoctoral research fellow in Prof. Huan-Tsung Chang’s bio and nano analytical group at National Taiwan University, where he developed materials for electro and photocatalysis for the production of value-added products. He then moved to United Kingdom (UK) in Nov. 2018 and joined the group of Prof. Ana Jorge Sobrido at Queen Mary University of London. As a postdoctoral research associate within the School of Materials Science and Engineering, his research centered around the development of sustainable approaches to produce cost-efficient materials for bifunctional catalytic applications. From Oct. 2020 to Dec. 2023, he worked as a research fellow in e
EDUCATION
Dr. Arun Prakash received his Ph.D. degree in Chemistry from National Taipei University of Technology in June 2011. He was awarded Taiwan government scholarship for pursuing his Ph.D. degree on synthesis of functional nanomaterials for the creation of bioactive interfaces for biosensor applications. He received his B.Sc, M.Sc. and M.Phil degrees from Bharathiar University, India.
RESEARCH, TEACHING, or OTHER INTERESTS
Electrochemistry, Catalysis, Energy, Renewable Energy, Sustainability and the Environment
Bifunctional Fe─Ru─VC Catalyst for Energy Efficient Tandem Alkaline Electrolysis of Hydrazine and 4-nitrophenol Ali Mohammadi, Hanseung Kim, Mohammad Javad Arshia, Soobin Han, Abilash Sedhumadhavan, Reza Maleki, A.T. Ezhil Vilian, Arun Prakash Periasamy, Yun Suk Huh, Young‐Kyu Han Small, 2025 Alternate electrocatalytic reactions can turn pollutants into green fuels, offering an energy‐efficient approach. Coupling hydrazine oxidation reaction (HzOR), with 4‐nitrophenol hydrogenation (4‐NPHR) is especially promising. Here, we report a bifunctional electrocatalyst composed of defect‐rich Fe–Ru alloy clusters uniformly anchored on vanadium carbide (Fe─Ru─VC), synthesized via scalable ball milling and thermal annealing. Fe─Ru─VC exhibits excellent electrocatalytic activity toward both HzOR and 4‐NPHR, requiring a low overpotential of 145 mV at 10 mA cm−2 and a favorable Tafel slope of 68.9 mV dec−1 for HzOR, with stability exceeding 90 h in 1M KOH. For 1 mM 4‐NPHR, superior Fe‐Ru‐VC performance is achieved −7.2 mA cm−2 at 100 mV, highlighting its high efficiency. Furthermore, a paired H‐cell electrolyzer (HzOR||4‐NPHR) operates at only 200 mV to deliver 40 mA cm−2, underscoring its low energy demand. In situ Raman spectroscopy confirms the formation of Fe─Ru(OOH) as active sites, UV–Vis analysis confirms rapid 4‐NP degradation, and DFT calculations demonstrate enhanced electronic interactions at the Ru─Fe junction, consistent with experimental observations. The outstanding activity is attributed to synergistic Fe‐Ru interactions, the presence of zigzag edge defects, and the excellent conductivity of the VC support.
High-Powered Nanostructured rGO/g-C3N4/CoSe||AC Electrodes Employed in an Asymmetric Supercapacitor Device Premanand Ganesan, Sridevi D, Manojkumar Moorthy, Suresh Perumal, Silambarasan S, Thandavarayan Maiyalagan, Tushar H. Rana, Arun Prakash Periasamy, Ramesh V Energy Storage, 2025 Supercapacitors are increasingly adopting two‐dimensional (2D) carbon‐intercalated transition metal chalcogenide (TMC) composites (CxMX1−x) due to their adjustable surface properties, makeup, and structure. Even though they show promise, we still do not know much about how the strain in the structure and changes in electronic properties from 2D carbon intercalation affect them. In this study, we prepared (rGO/g‐C3N4)x‐(CoSe)1−x nanocomposites using a new one‐step hydrothermal method with very low (x = 0.01) and higher (x = 0.10) amounts of carbon to see how they affect lattice strain and electrochemical performance. The results of XRD and Rietveld refinement demonstrated the purity of the materials and revealed an increase in lattice size with the addition of more rGO/g‐C3N4. Crystallite size decreased from 12.97 nm for CoSe to 9.5 nm for the (rGO/g‐C3N4)0.1‐(CoSe)0.90 sample due to strain introduced by carbon intercalation. TEM analysis showed nanosheet morphologies with visible rGO and g‐C3N4 structures. XPS confirmed the Co2+ and Se2− oxidation states and validated the presence of C–C and C–N bonds. The (rGO/g‐C3N4)0.1‐(CoSe)0.90 electrode exhibited a high specific capacitance of 1102 F g−1 at 1 A g−1 and retained 97.1% after 2000 cycles. An asymmetric device using activated carbon (AC) achieved an energy density of 53.31 Wh kg−1, a power density of 750 W kg−1, and 97% capacitance retention after 5000 cycles, underscoring the material's potential for durable, high‐performance.
Advances in spin properties of plant leaf-derived graphene quantum dots from materials to applications Yuan-Chih Hung, Jia-Ren Wu, Arun Prakash Periasamy, Nobuyuki Aoki, Chiashain Chuang Nanotechnology, 2025 Over the past decade, graphene quantum dots (GQDs) have gained an inexhaustible deal of attention due to their unique zero-dimensional (0D) and quantum confinement properties, which boosted their wide research implication and reliable applications. As one of the promising 0D member and rising star of the carbon family, plant leaf-derived GQDs have attracted significant attention from scholars working in different research fields. Owing to its novel photophysical properties including high photo-stability, plant leaf-derived GQDs have been increasingly utilized in the fabrication of optoelectronic devices. Their superior biocompatibility finds their use in biotechnology applications, while their fascinating spin and magnetic properties have maximized their utilization in spin-manipulation devices. In order to promote the applications of plant leaf-derived GQDs in different fields, several studies over the past decade have successfully utilized plant leaf as sustainable precursor and synthesized GQDs with various sizes using different chemical and physical methods. In this review, we summarize the Neem and Fenugreek leaves based methods of synthesis of plant leaf-derived GQDs, discussing their surface characteristics and photophysical properties. We highlight the size and wavelength dependent photoluminescence properties of plant leaf-derived GQDs towards their applications in optoelectronic devices such as white light-emitting diodes and photodetectors, as well as biotechnology applications such as in vivo imaging of apoptotic cells and spin related devices as magnetic storage medium. Finally, we particularly discuss possible ways of fine tuning the spin properties of plant leaf-derived GQD clusters by incorporation with superconducting quantum interference device, followed by utilization of atomic force microscopy and magnetic force microscopy measurements for the construction of future spin-based magnetic storage media and spin manipulation quantum devices so as to provide an outlook on the future spin applications of plant leaf-derived GQDs.
Development of a new class of stable and adaptable free-standing fibre mats with high room-temperature hydroxide-ion conductivity Servann Hérou, Pauline Kasongo-Ntumba, Arun Prakash Periasamy, James King, Molly McVea, Szymon Doszczeczko, Andy Bushby, Ana Belen Jorge Sobrido, Maria-Magdalena Titirici, Petra Ágota Szilágyi Scientific Reports, 2024 For alkaline anion-exchange membrane electrolysers and fuel cells to become a technological reality, hydroxide-ion (OH−) conducting membranes that are flexible, robust, affording high OH− conductivity, and synthesised in a low-cost and scalable way must be developed. In this paper, we engineer a stable, self-supporting, and flexible fibre mat using a low-cost ZIF-8 metal–organic framework composited with ionic liquid tetrabutylammonium hydroxide and widely used polyacrylonitrile as polymeric backbone. We obtain mats with a high intrinsic OH− conductivity for a metal–organic framework-based material already at room temperature, without added ion-conductor polymers. This approach will contribute to the development of low-cost and tuneable ion-conducting membranes.
Radiation-grafted anion-exchange membranes for CO2 electroreduction cells: an unexpected effect of using a lower excess of N-methylpiperidine in their fabrication Terry R. Willson, Carlos A. Giron Rodriguez, Qiucheng Xu, Jordan Frow, Fabrizia Foglia, Keenan Smith, Ravikumar Ravikumar, Mohanraj Vinothkannan, Najet Mahmoudi, Ihtasham Salam, Arun Prakash Periasamy, Daniel K. Whelligan, Mohamed Mamlouk, Hungyen Lin, Brian Seger, John R. Varcoe Journal of Materials Chemistry A, 2023 Radiation-grafted methylpiperidinium anion-exchange membranes fabricated using different amine excesses are spectroscopically similar but possess different nano-morphological and hydration responses.
Disentangling water, ion and polymer dynamics in an anion exchange membrane Fabrizia Foglia, Quentin Berrod, Adam J. Clancy, Keenan Smith, Gérard Gebel, Victoria García Sakai, Markus Appel, Jean-Marc Zanotti, Madhusudan Tyagi, Najet Mahmoudi, Thomas S. Miller, John R. Varcoe, Arun Prakash Periasamy, Daniel J. L. Brett, Paul R. Shearing, Sandrine Lyonnard, Paul F. McMillan Nature Materials, 2022
Alcohol dehydrogenase immobilized at cerium hexacyanoferrate (II) nanoparticles incorporated poly-L-lysine film for voltammetric ethanol determination International Journal of Electrochemical Science, 2011
Direct electrochemistry of catalase immobilized at electrochemically reduced graphene oxide modified electrode for amperometric H2O2 biosensor International Journal of Electrochemical Science, 2011
Catalase immobilized on nanohybrid materials for electrochemical hydrogen peroxide sensors: A review Biosensors Properties Materials and Applications, 2009
Engineering LiAl LDH with anions and metals modulations for durable lithium recovery A Mohammadi, C Kwak, MJ Arshia, K Chanmey, E Vilian, R Maleki, ... Chemical Engineering Journal, 177515 , 2026 2026
Addressing degradation and durability challenges in anion exchange membranes for advancing anion exchange membrane water electrolyzers AP Periasamy, NCS Selvam, B Devadas Current Opinion in Chemical Engineering 51, 101226 , 2026 2026
Functional MWCNT supported nickel Sulfoselenide based ternary composite for highly sensitive detection of nitrite B Devadas, SC Caroline, AP Periasamy, SK Batabyal Microchemical Journal 219, 115978 , 2025 2025 Citations: 1
Bifunctional Fe─ Ru─ VC Catalyst for Energy Efficient Tandem Alkaline Electrolysis of Hydrazine and 4‐nitrophenol A Mohammadi, H Kim, MJ Arshia, S Han, A Sedhumadhavan, R Maleki, ... Small 21 (45), e07522 , 2025 2025 Citations: 1
Hierarchical ZnSnO₃–chitosan carbon microsphere sensor for ultrasensitive Nilutamide detection in clinical and environmental samples SV Selvi, A Saravanan, AP Periasamy, WWW Hsiao Chemical Engineering Journal, 170100 , 2025 2025
High‐Powered Nanostructured rGO/g‐C 3 N 4 /CoSe||AC Electrodes Employed in an Asymmetric Supercapacitor Device P Ganesan, M Moorthy, S Perumal, S S, T Maiyalagan, TH Rana, ... Energy Storage 7 (6), e70257 , 2025 2025 Citations: 1
Advances in spin properties of plant leaf-derived graphene quantum dots from materials to applications YC Hung, JR Wu, AP Periasamy, N Aoki, C Chuang Nanotechnology 36 (16), 165002 , 2025 2025 Citations: 3
Advancing the Synthesis for Perdeuterated Small Organic Chemicals via Electrochemical CO 2 Reduction BÓ Joensen, Q Xu, K Enemark-Rasmussen, V Frankland, ... ACS Catalysis 15 (2), 1038-1045 , 2025 2025 Citations: 3
3D carbon sponge-derived from red onion skin for solid-state supercapacitor P Veerakumar, AP Periasamy, A Sangili, CC Huang, HT Chang Nano-Structures & Nano-Objects 40, 101355 , 2024 2024 Citations: 8
(Invited) The Latest Developments in Radiation-Grafted Anion-Exchange Membranes AP Periasamy, R Rupesinghe, R Nash, T Willson, R Bance-Souahli, ... Electrochemical Society Meeting Abstracts 245, 1738-1738 , 2024 2024
Development of a new class of stable and adaptable free-standing fibre mats with high room-temperature hydroxide-ion conductivity S Hérou, P Kasongo-Ntumba, AP Periasamy, J King, M McVea, ... Scientific Reports 14 (1), 14529 , 2024 2024 Citations: 3
Development of a new class of stable and adaptable free-standing fibre mats with high room-temperature hydroxide-ion conductivity P Szilagyi, S Herou, P Kasongo-Ntumba, A Periasamy, J King, ... 2024
Covalent Crosslinking of High-Density Polyethylene Trimethylammonium-Based Radiation-Grafted Anion Exchange Membranes for Reduced Water Uptakes and Swelling AP Periasamy, R Bance-Souahli, DK Whelligan, JR Varcoe Electrochemical Society Meeting Abstracts 244, 2031-2031 , 2023 2023 Citations: 1
DATASET: Radiation-grafted anion-exchange membranes for CO2 electroreduction cells: an unexpected effect of using a lower excess of N-methylpiperidine in their fabrication J Varcoe, B Seger, D Whelligan, I Salam, CAG Rodriguez, Q Xu, J Frow, ... figshare , 2023 2023
Lignin: A sustainable precursor for nanostructured carbon materials for supercapacitors R Madhu, AP Periasamy, P Schlee, S Hérou, MM Titirici Carbon 207, 172-197 , 2023 2023 Citations: 147
Radiation-grafted anion-exchange membranes for CO 2 electroreduction cells: an unexpected effect of using a lower excess of N-methylpiperidine in their fabrication TR Willson, CAG Rodriguez, Q Xu, J Frow, F Foglia, K Smith, ... Journal of Materials Chemistry A 11 (38), 20724-20740 , 2023 2023 Citations: 13
Water States Analysis of Anion Exchange Membranes with Terahertz Time-Domain Spectroscopy JJ Frow, AP Periasamy, G Gupta, JR Varcoe, H Lin 2022 47th International Conference on Infrared, Millimeter and Terahertz … , 2022 2022 Citations: 1
The Latest Developments in Radiation-Grafted Anion-Exchange Polymer Electrolytes for Low Temperature Electrochemical Systems J Varcoe, R Bance-Souahli, A Chakraborty, M Choolaei, C Crean, ... Electrochemical Society Meeting Abstracts 241, 1443-1443 , 2022 2022
Control of Covalent Crosslinking of Diamine in Radiation-Grafted High-Density Polyethylene and Trimethylammonium-Based Anion Exchange Membranes for Use in Fuel Cells AP Periasamy, T Willson 241st ECS Meeting (May 29-June 2, 2022) , 2022 2022
Disentangling water, ion and polymer dynamics in an anion exchange membrane F Foglia, Q Berrod, AJ Clancy, K Smith, G Gebel, VG Sakai, M Appel, ... Nature Materials 21 (5), 555-563 , 2022 2022 Citations: 106
MOST CITED SCHOLAR PUBLICATIONS
Photoluminescent carbon nanodots: synthesis, physicochemical properties and analytical applications P Roy, PC Chen, AP Periasamy, YN Chen, HT Chang Materials Today 18 (8), 447-458 , 2015 2015 Citations: 649
Highly selective amperometric nitrite sensor based on chemically reduced graphene oxide modified electrode V Mani, AP Periasamy, SM Chen Electrochemistry Communications 17, 75-78 , 2012 2012 Citations: 331
Carbon nanodots prepared from o-phenylenediamine for sensing of Cu 2+ ions in cells M Vedamalai, AP Periasamy, CW Wang, YT Tseng, LC Ho, CC Shih, ... Nanoscale 6 (21), 13119-13125 , 2014 2014 Citations: 301
Synthesis of graphene-ZnO-Au nanocomposites for efficient photocatalytic reduction of nitrobenzene P Roy, AP Periasamy, CT Liang, HT Chang Environmental science & technology 47 (12), 6688-6695 , 2013 2013 Citations: 253
Amperometric glucose sensor based on glucose oxidase immobilized on gelatin-multiwalled carbon nanotube modified glassy carbon electrode AP Periasamy, YJ Chang, SM Chen Bioelectrochemistry 80 (2), 114-120 , 2011 2011 Citations: 251
3D carbon materials for efficient oxygen and hydrogen electrocatalysis AB Jorge, R Jervis, AP Periasamy, M Qiao, J Feng, LN Tran, MM Titirici Advanced Energy Materials 10 (11), 1902494 , 2020 2020 Citations: 235
Electrochemical synthesis of photoluminescent carbon nanodots from glycine for highly sensitive detection of hemoglobin CI Wang, WC Wu, AP Periasamy, HT Chang Green Chemistry 16 (5), 2509-2514 , 2014 2014 Citations: 227
Plant leaf-derived graphene quantum dots and applications for white LEDs P Roy, AP Periasamy, C Chuang, YR Liou, YF Chen, J Joly, CT Liang, ... New Journal of Chemistry 38 (10), 4946-4951 , 2014 2014 Citations: 201
Nanomaterials-acetylcholinesterase enzyme matrices for organophosphorus pesticides electrochemical sensors: a review AP Periasamy, Y Umasankar, SM Chen Sensors 9 (6), 4034-4055 , 2009 2009 Citations: 187
Lignin: A sustainable precursor for nanostructured carbon materials for supercapacitors R Madhu, AP Periasamy, P Schlee, S Hérou, MM Titirici Carbon 207, 172-197 , 2023 2023 Citations: 147
Electrocatalysis and simultaneous determination of catechol and quinol by poly (malachite green) coated multiwalled carbon nanotube film Y Umasankar, AP Periasamy, SM Chen Analytical biochemistry 411 (1), 71-79 , 2011 2011 Citations: 139
Photoluminescent graphene quantum dots for in vivo imaging of apoptotic cells P Roy, AP Periasamy, CY Lin, GM Her, WJ Chiu, CL Li, CL Shu, ... Nanoscale 7 (6), 2504-2510 , 2015 2015 Citations: 134
Photoluminescent C-dots@ RGO probe for sensitive and selective detection of acetylcholine CI Wang, AP Periasamy, HT Chang Analytical chemistry 85 (6), 3263-3270 , 2013 2013 Citations: 123
A review on direct electrochemistry of catalase for electrochemical sensors PA Prakash, U Yogeswaran, SM Chen Sensors 9 (3), 1821-1844 , 2009 2009 Citations: 107
Disentangling water, ion and polymer dynamics in an anion exchange membrane F Foglia, Q Berrod, AJ Clancy, K Smith, G Gebel, VG Sakai, M Appel, ... Nature Materials 21 (5), 555-563 , 2022 2022 Citations: 106
Synthesis of copper nanowire decorated reduced graphene oxide for electro-oxidation of methanol AP Periasamy, J Liu, HM Lin, HT Chang Journal of Materials Chemistry A 1 (19), 5973-5981 , 2013 2013 Citations: 95
Preparation and characterization of bismuth oxide nanoparticles-multiwalled carbon nanotube composite for the development of horseradish peroxidase based H2O2 biosensor AP Periasamy, S Yang, SM Chen Talanta 87, 15-23 , 2011 2011 Citations: 94
Facet-and structure-dependent catalytic activity of cuprous oxide/polypyrrole particles towards the efficient reduction of carbon dioxide to methanol AP Periasamy, R Ravindranath, SMS Kumar, WP Wu, TR Jian, HT Chang Nanoscale 10 (25), 11869-11880 , 2018 2018 Citations: 88
Synthesis of photoluminescent carbon dots for the detection of cobalt ions CL Li, CC Huang, AP Periasamy, P Roy, WC Wu, CL Hsu, HT Chang RSC advances 5 (3), 2285-2291 , 2015 2015 Citations: 87
Multiwalled carbon nanotubes dispersed in carminic acid for the development of catalase based biosensor for selective amperometric determination of H2O2 and iodate AP Periasamy, YH Ho, SM Chen Biosensors and Bioelectronics 29 (1), 151-158 , 2011 2011 Citations: 85