

I am currently working as a Postdoctoral Research Associate in the Department of Chemistry at the Indian Institute of Technology Indore (IITI). My research focuses is on energy conversion and energy storage materials, particularly for water/seawater electrolysis (OER CER and HER), supercapacitors, heterogeneous catalysis, biofuel production, and biomass conversion applications.
Dr. Imtiaz A. Choudhary
NET, JRF, SRF, JKSET
Publications
Published Articles 45, Book Chapter 1, International Conferences and Workshops 6, Best Presentation Award 1, Total Citation: 923, h-index: 19, i10-index: 34, Total cumulative Impact factor (of Published): 191.07
Postdoc. Work
2025 (4)
44. K. Prakash I. Ahmed, Rakesh Daka & Shaikh M. Mobin Metal free donor–acceptor covalent organic frameworks as efficient electrocatalysts for oxygen evolution reaction J. Mater. Chem. A, 2025, Advance Article 2025.
44.A. Rani, S. Sagar, I. Ahmed, K. K. Haldar Surface Modification of Co3O4 by HfO2 for Improve Efficient Bifunctional Electrocatalyst for Hydrogen and Oxygen Evolutions ChemNanoMat e202500085.
43. I. Ahmed, K. Prakash & Shaikh M. Mobin Lead-free perovskites for solar cell applications: recent progress, ongoing challenges, and strategic approaches Chemcomm, 2025, Feature Article.
42. Ritu Raj, I. Ahmed, Gajendra Singh K.K. Haldar, Exploring Hf-mediated Surface Engineering to Enhance Co3O4/Ag2S Core-Shell Nanorods as Bifunctional Electrocatalyst for Water Splitting Reaction Fuel 2025.
41. I. Ahmed, Zahir Abbas & Shaikh M. Mobin Constructing Polycrystalline Hybrid Ternary CuS/Co3O4 with Supported Graphitic Nitride Electrocatalyst for Bifunctional Water Splitting Reactions J. Mater. Chem. A, 2025, Advance Article 2025.
40. C. Kaur I. Ahmed, R. Raj, K. K. Haldar* & T. Sen* Modulation of a DNA Origami Template Dimer Gold Nanobipyramid Electrocatalyst for Ultrahigh Oxygen Evolution Reaction Activity. 2025, 8, 4, 1749–1761 ACS Applied Nano Material.
2024 (4)
39. A. BaQai,M. Shariq H. A. Althikrallah, T. H. Alshareef, K. S. Alrashd, A. F. Alharbi, D. Alhasmialameer, I, Ahmed* Synthesis and Characterization of Highly Conductive MXene@Bi2O3 Electrode Material for Improved Oxygen Evolution: The Role of Electrocatalyst for Oxygen Evolution Reactions 2024 Applied Physics A.
38. A. Kittisabhorn; I. Ahmed; S. Ratchahat; W. Chaiwat; W. Koo-amornpattana; W. Klysubun; W. Limphirat; S. Assabumrungrat; A. Srifa*. Construction of Ni-Re Supported on Hydrotalcite-Derived NiMgAl Mixed Oxides Catalyst for Boosting Ring Hydrogenation of Furfural into Tetrahydrofurfuryl Alcohol in Water 2024, e202400614, ChemCatChem. (IF= 4.5)
37. D. Alhashmialameer ; M. Shariq,; I. A. Fani A. A. Alharbi, , Y A Majed; R. Azooz, I. Ahmed*, A Facile Synthesis Strategy to Supported Hybrid Co3O4/MoS2@g-C3N4 Composite Nanostructure: An Excellent Catalyst for HER"2024, Energy Fuels 2024, 38, 16, 15771–15779 (IF = 5.2)
36. Kittisabhorn; I. Ahmed; S. Ratchahat; W. Chaiwat; W. Koo-amornpattana; W. Klysubun; W. Limphirat; S. AssabumrungratSrifa*. Constructing Ni–Pt Bimetallic Catalysts for Catalytic Hydrogenation and Rearrangement of Furfural into Cyclopentanone with Insight in H/D Exchange by D2O Labeling 2024, 9, 26, 28637–28647 ACS Omega (IF = 3.7)
Ph.D. Work
2025 (1)
40. C. Kaur I. Ahmed, R. Raj, K. K. Haldar* & T. Sen* Modulation of a DNA Origami Template Dimer Gold Nanobipyramid Electrocatalyst for Ultrahigh Oxygen Evolution Reaction Activity ACS Applied Nano Materials.
2024 (10)
35. I. Ahmed, R. Biswas, S. Biswas, A. Roy and K. K. Haldar Need for Rational and Facile Fabrication of W-Ir based Heterojunction Catalysts to Enhance the Electrochemical Water Splitting Performance. 2024, xxxxx, xx ACS Applied Engeenering Materials
34. I. Ahmed, R. Raj, V. Burman, & K. K. Haldar Biogenic Synthesis of Morphological Controlled Co3O4 Using Phyllanthus emblica Fruit Extract to Improved Electrochemical OER Activity of Co3O4/MoS2 2024, xxxxx- xx Waste and Biomass Valorization. (IF = 2.6)
33. Ritu Raj, I. Ahmed, Vikash Kumar, K.K. Haldar, Gajendra Singh Biogenic Bovine Serum Albumin/Zn3(PO4)2/Cr2O3 Hybrid Electrocatalyst for Improved Oxygen Evolution Reaction 2024 xxxx,- xx Nano Express (IF = 3.0)Open Access)
32. Raj Sharma, Ritu Raj, Vikash Kumar, I. Ahmed, Gajendra Singh K.K Haldar,. Lycium ruthenicum Stem Extract Mediated synthesis of MnO2/Mn3(PO4)2 Composite Nanowire Electrocatalyst for Oxygen Evolution Reaction 2024 xxxx, xx Accepted Nano Express. (IF = 3.0)Open Access)
31. M. Iqbal, N. Saykar, A. Singh, I. Ahmed, A. Arya, K.K. Haldar. S. K. Mahapatra, WS2@Mesoporous carbon composite as a bifunctional electrode for quasi-solid-state Symmetric/Asymmetric Supercapacitor and oxygen evolution reaction. Advanced Materials Technologies, April 4, 2024, 2301797 (IF = 6.8)
30. I. Ahmed, R. Biswas, A. Roy, K.K. Haldar. Co3O4/WO3/C Nanorods with Porous Structures as High-Performance Electrocatalyst for Water Splitting reactions. ACS Applied Nano Materials, 2024, 7, 4, 4035–4050 (IF = 5.9)
29. S. Barik, R. Biswas A. Roy, I. Ahmed, N. Begum and K. K. Haldar* Composition Dependent Electrochemical OER Activity of Zn0.76Co0.24S Enriched ZnCo2S4/ZnCr2O4 Composite Catalyst ACS Applied Nano Materials, 7, 2, 2280–2290 (IF = 5.9)
28. I. Ahmed, S. Dastider, K. Mondal and K. K. Haldar A Nitrogen Doping NiS/ Ni3S4 Nanowires Electrocatalyst Promotes Second-Order Hydrogen Evolution Reactions ACS Applied Nano Materials 7, 1, 661–671 (IF = 5.9)
27. N. Begum R. Biswas A. Roy, I. Ahmed, and K. K. Haldar* Synthesis of FeNi2S4/ZnCr2O4 composite nanostructure for electrochemical OER activity ChemSelect 9, 3, 2024 e202302556 (IF = 2.3)
26. D. Kubba I. Ahmed, A. Roy, P. Kour, C.S Yadav, S. Sharma, K. Yadav and K.K. Coupling of B Site Doped LaFe1- xCoxO3 Perovskite Oxide with Petal-like Ni(OH)2 NanosheetsElectrocatalyst for Oxygen Evolution Reaction ACS Applied Nano Materials 7, 2, 1536–1547 (IF = 5.9)
2023 (10)
25. P. Rani, I. Ahmed, S. Dastider, R. Biswas, K. Mondal; K.K. Haldar, S. Patole, P. Alegaonkar, Synergistic Effect of CoTe@Co3O4 Nanocomposite for Enhanced OER Performance, ACS Applied Engineering Material, 2023, 1, 12, 3389– 3402.
24. I. Ahmed, V. Burman, R. Biswas, A. Roy, R. Sharma, and K.K. Haldar Bifunctional Electrochemical OER and HER Activity of Ta2O5 Nanoparticles Over Fe2O3 Nanoparticles. New Journal of Chemistry 2023, 47, 17284-17292 (IF = 3.3)
23. Z. Abbas, N. Hussain, I. Ahmed and S. M. Mobin. Cu-Metal Organic Framework derived Multilevel Hierarchy (Cu/CuxO@NC) as a Bifunctional Electrode for High-performance Supercapacitors and Oxygen Evolution Reaction. ACS Inorganic Chemsitry, 2023, 62, 23, 8835–8845 (IF = 4.6)
22. R. Biswas, S. G. Dastider, I. Ahmed, K. Mondal, K. K. Haldar. Bio-assist Synthesis of Au/Rh Nanotriangle Electrocatalyst for Hydrogen Evolution and Methanol Oxidation Reactions: Composition Mater!. 2023. ACS Energy and Fuels 37, 17, 13231–13240 (IF = 5.3)
21.D. Kubba, P. Kour, I. Ahmed, K. Yadav, S. K. Sharma. BiFeO3/g-C3N4/f-CNF ternary nanocomposite as an efficient photocatalyst for methylene blue dye degradation under solar light irradiation Journal of Alloys and Compounds 2023, 960, 171073 (IF = 5.9)
20. I. Ahmed, R. Biswas, S. Mete, R.A. Patil Y. R. and Ma K. K. Haldar. Efficient MoS2/V2O5 Electrocatalyst for Enhanced Oxygen and Hydrogen Evolution Reaction. Electrocatalysis, (2023) 14, 624–635 (IF = 3.1)
19. R. Biswas, S. G. Dastider, I. Ahmed, S. Barua, K. Mondal and K. K. Haldar. Unravelling the Role of Orbitals Interaction in Electrochemical HER of the Trimetallic AgAuCu Nanobowl Catalyst (2023) The Journal of Physical Chemistry Letters (ACS) 2023, 14, 13, 3146–3151 (IF = 5.7)
18. I. Ahmed, R. Biswas, M. Iqbal, K.K. Haldar. In-Situ fabrication of NiS/MoS2 Anchored Multiwall Carbon Nanotube Electrocatalyst for Energy Generation and Storage Applications (2022) ChemNanoMat. 2023,9,6, e202200550 (IF = 3.82)
17. I. Ahmed, R. Biswas, R. Sharma, V. Burman and K.K. Haldar Access to carbon nanofiber composite hydrated cobalt phosphate nanostructure as an efficient catalyst for HER. Frontiers in Chemistry 2023, 11, (IF = 5.5)(Open Access)
16. D. Deeksha, P. Kour, I. Ahmed, S. Sharma, S. K. Sharma, K. Yadav, Y. K. Mishra, Transition Metal based Perovskite Oxides: Emerging Electrocatalysts for Oxygen Evolution Reaction, ChemCatChem 2023,15,6, e202300040 (IF = 4.5)
2022 (9)
15. R. Biswas, P. Thakur, I. Ahmed, T. Rom, M. S. Ali, R. A. Patil , B. Kumar, S. Som, D. Chopra, A. K. Paul, Y.-R. Ma, K. K. Haldar. Coupling Nonstoichiometric Zn0.76Co0.24S with NiCo2S4 Com-posite Nanoflower for Efficient Synergistic Electrocatalytic Oxygen and Hydrogen Evolution Reactions. ACS Energy & Fuels, 2022, 37, 1, 604–613 (IF = 5.30)
14. R. Biswas, I. Ahmed, P. Manna, P. Mahata, R. S. Dhayal, A.Singh, J. Lahtinen, K. K. Haldar. Facile Fabrication of Ni9S8/Ag2S Intertwined Structures for Oxygen and Hydrogen Evolution Reactions. ChemPlusChem, 2022. e202200320 (IF = 3.4)
13. H. Singh, R. Biswas, I. Ahmed, P. Thakur, A. Kundu, A. R. Panigrahi, B. Banerjee, K. K. Halder, J. Lahtinen, K. Mondal, K.K. Haldar. Dumbbell-Shaped Ternary Transition-Metal (Cu, Ni, Co) Phosphate Bundles: A Promising Catalyst for the Oxygen Evolution Reaction. ACS Applied Materials & Interfaces, 2022, 14 (5), 6570–6581. (IF = 9.50)
12. I. Ahmed, R. Biswas, S. G. Dastider, H. Singh, S. Mete, R. A. Patil, M. Saha, A. K. Yadav, S. N. Jha, K. Mondal, H. Singh, Y.R. Ma, K. K. Haldar. Mechanism of Iron Integration into LiMn1.5Ni0.5O4 for Electrocatalytic Oxygen Evolution Reaction. ACS Energy & Fuels, 2022, 36 (19), 12160–12169. (IF = 4.64)
11. D. Kubba, I. Ahmed, P. Kour, R. Biswas, H. Kaur, K. Yadav. K. K. Haldar. LaCoO3 Perovskite Nanoparticles Embedded in NiCo2O4 Nanoflowers as Electrocatalysts for Oxygen Evolution.ACS Applied Nano Materials, 2022, 5 (11), 16344– 16353. (IF = 5.9)
10. I. Ahmed, R. Biswas, H. Singh, R. A. Patil, R. Varshney, D. Patra, Y.R. Ma, K. K. Haldar. Green Synthesis of Hybrid Papain/Ni3(PO4)2 Rods Electrocatalyst for Enhanced Oxygen Evolution Reaction. New Journal of Chemistry, 2022, 46, 22237-22245 (IF = 3.3)
9. K. K. Haldar, R. Biswas, A. Arya, I. Ahmed, S. Tanwar, A. L. Sharma. Construction of Three Dimensional Marigold Flower Shaped Ni3V2O8 for Efficient Solid‐State Supercapacitor Applications. Energy Storage, 2022, e378. (IF =3.2)
8. A. Halder, R. Biswas, P. P. Kushwaha, K. K. Halder, I. Ahmed, H. Singh, S. Kumar, K. K. Haldar. Green Synthesis of
Bimetallic Au/Ag Nanostructures Using Aqueous Extract of Eichhornia crassipes for Antibacterial Activity.
BioNanoScience, 2022. (IF = 3.6)
7. H. Singh#, I. Ahmed# R. Biswas, S. Mete, K. K. Halder, B. Banerjee, K. K.Haldar.Genomic DNA-mediated formation of a porous Cu2(OH)PO4/Co3(PO4)2·8H2O rolling pin shape bifunctional electrocatalyst for water splitting reactions. RSC Advances, 2022, 12(6), 3738-3744. (# equally contributed) (IF = 3.90)(Open Access)
2021 (3)
6. I. Ahmed, R. Biswas, R. A. Patil, K. K. Halder, H. Singh, B. Banerjee, B. Kumar, Y.-R Ma, K. K. Haldar. Graphitic Carbon Nitride Composites with MoO3-Decorated Co3O4 Nanorods as Catalysts for Oxygen and Hydrogen Evolution. ACS Applied Nano Materials, 2021, 4 (11), 12672-12681 (IF = 5.9)
5. R. Biswas, P. Thakur, G. Kaur, S. Som, M. Saha, V. Jhajhria, H. Singh, I. Ahmed, B. Banerjee, D. Chopra, T. Sen, K. K. Haldar. Interfacial Engineering of CuCo2S4/g-C3N4 Hybrid Nanorods for Efficient Oxygen Evolution Reaction. ACS Inorganic Chemistry, 2021, 60 (16), 12355-12366. (IF = 4.5)
4. R. Biswas, B. Banerjee, M. Saha, I. Ahmed, S. Mete, R. A. Patil, Y. R. Ma, K. K. Kaldar. Green Approach for the Fabrication of Au/ZnO Nanoflowers: A Catalytic Aspect. The Journal of Physical Chemistry C, 2021, 125 (12), 6619-6631. (IF = 3.7)
2020 (2)
3. R. Biswas, S. Singh, I. Ahmed, R. A. Patil, Y. Ron Ma, and K. K. Haldar. Rational design of Bimetallic Au/Cu nanostructure: An Efficient Catalyst for Methanol Oxidation. ChemNanoMat. 2020, 7(2), 158-164. (IF = 3.82)
2. R. Biswas, S. Mete, M. Mandal, B. Banerjee, H. Singh, I. Ahmed, K. K. Haldar. Novel Green Approach for Fabrication of Ag2CrO4/TiO2/Au/r-GO Hybrid Biofilm for Visible Light-Driven Photocatalytic Performance. The Journal of Physical Chemistry C, 2020,124, 124, 3373–3388. (IF= 3.7)
M.Sc Work 2018 (1)
1. S. Singh, I. Ahmed, K. K. Haldar. Nickel oxide decorated zinc oxide composite nanorods: Excellent catalyst for photoreduction of hexavalent chromium. Journal of Colloid and Interface Science. 2018, 523, 1-6 (IF= 9.4)
Book Chapters
Deeksha, P. Kour, I. Ahmed, K. K. Haldar. K, Yadav. Tuning the Morphology of Lanthanum Cobaltite Using the Surfactant-Assisted Hydrothermal Approach for Enhancing Oxygen Evolution Catalysis.















































My research focuses on energy conversion, particularly water electrolysis (OER and HER), Seawater electrocatalysis supercapacitors, heterogeneous catalysis, biofuel production, and biomass conversion. He is also interested in the application of inorganic nanostructures and organic catalysis. Dr. Ahmed has published more than 40 research articles in prestigious journals, including ACS, RSC, Wiley, and Springer.