About Me
We are a collaborative research initiative between the Iranian Research Organization for Science and Technology (IROST) and the University of Stuttgart, aiming to advance scientific discovery and technological innovation. This partnership combines IROST’s strength in applied materials science with the University of Stuttgart’s expertise in solid-state inorganic chemistry, in-situ crystallography, and advanced characterization techniques. Our joint research focuses on next-generation proton-conductive perovskite ceramics—materials known for high ionic conductivity and structural adaptability. These compounds are critical in sustainable energy technologies, particularly in solid oxide electrolysis cells (SOECs) and solid oxide fuel cells (SOFCs). In SOECs, they enable efficient hydrogen and syngas production via high-temperature electrolysis of water and CO₂. In SOFCs, they serve as key components for clean electricity generation from hydrogen and other fuels. Beyond energy conversion, we explore these materials for gas separation applications, particularly as electrochemically active membranes for selective CO₂ and H₂ separation. This function supports essential environmental goals such as carbon capture and hydrogen purification—key steps in achieving a low-carbon economy. Our approach blends fundamental science with applied research. We investigate perovskite properties using structural, electrochemical, and spectroscopic techniques, including advanced in-situ and operando methods. By tuning chemical composition and microstructure, we aim to optimize material performance for real-world applications. We value interdisciplinary collaboration and international engagement as crucial to tackling global energy and climate challenges. To this end, we foster partnerships with academic institutions, research centers, and industry, promoting innovation and knowledge exchange. A core goal of our initiative is to contribute to the global scientific community through publications, conferences, and joint training programs, while also nurturing the next generation of researchers committed to building a sustainable, energy-secure future.
Current Research FocusI am currently engaged in developing advanced proton-conducting perovskite membranes for gas separation technologies, particularly for reforming-derived hydrogen production. Additionally, I am investigating electrochemical and autothermal reforming routes for methanol conversion to hydrogen, alongside the development of electrocatalysts for sustainable methanol synthesis.
ACADEMIC POSITIONS
2004 to date
Professor at Iranian Research Organization for Science and Technology
2017 To date
Guest Professor at University of Stuttgart
2022 to date
Associate Editor and Director-in-Charge for international journal of “Hydrogen, Fuel Cell and Energy Storage”
2023- to date
Vice President of the “Iranian Hydrogen and Fuel Cell Association”
EXECUTIVE EXPERIENCE
2022
Conference
Scientific Editor
Scientific Editor of 3ed Iranian Catalyst Conference (ICC2022) 17-18 May 2022. IROST, Tehran, Iran
RECENT RESEARCH PROJECTS
2025
Electrochemical production of Methanol by CO2 reduction under efficient catalyst at ambient condition, (Post Doc research Funded by INSF, 4030470, 2025, IROST, Iehran, Iran).
2025
Solid state proton conductors based on barium containing Perovskites and their application as supercapacitors, Hydrogen production and Hydrogen purification, Collaboration with J. Prof. Bertold Racshe research team, 2025, Stuttgart Uni and IROST.
2023
Catalytic hydrolysis of hydroborate compounds to provide hydrogen for solid oxide fuel cells, INSF, 4015293., 2023,IROST, Tehran, Iran.
2021-2023
Hydrogen Storage in Solid Hydrogen Carriers. IROST-Stuttgart University (Prof. Dr. Thomas Schleid), 2021-2023.
2022
Cobalt, Nickel, Cadmium and Zinc recovery from waste by leaching and solvent extraction in pilot plant scale, 2022, IROST, Tehran, Iand and, Rah Abrisham Co.
2020
Strongly affected photocatalytic CO2 reduction by adsorbed CO2 on the surface of Cr-substituted Ba2In2O5·(H2O)x, 2020, Stuttgart (Prof. Dr. Anke Weidenkaff)
2017
Fabrication of perovskite type solar cells based on ammonium lead halides, 2017, IROST Tehran Iran.
2016
Fabrication of proton exchange catalytic membrane for low temperature solid oxide fuel cells, INSF, 93033140, 2016, IROST Tehran, Iran
2014
Anodic electro catalysis for low temperature solid oxide fuel cells, Iranian National Science Foundation, INSF, 90006825, 2014, IROST Tehran, Iran
2014
Preparation of lanthanum strontium manganite as cathode electrode for solid oxide fuel cells, 10102907, 2014, from Presidential Technology Council, IROST Tehran, Iran.
2014
Preparation and characterization of ruthenium complex of 2, 2’-bipyridine 4, 4’-dicarboxylic acid as dye for dye sensitized solar cells 101029028, 2014, from Presidential Technology Council, IROST Tehran, Iran.
2011
Evaluation of materials and instruments for localization of solid oxide fuel cells 89/27, 2011 from SANA, IROST Tehran, Iran.
Book
2016
Solid Oxide Fuel Cell
Solid Oxide Fuel Cell, Maryam Ranjbar, Majid Abdollahi, IROST, 256 pages, Iede Negar Publisher, 1395 (2016), Shabac: 978-600-94621-9-3.
JOINT RESEARCH PROJECTS
2025
Investigating and Designing Optimal Bauxite Homogenization Methods for Iranian Alumina Complex: Technical and Economic Analysis, (Dr Razieh Habibpour), 2025, Alumina Jajarm Co. and IROST, Tehran, Iran.
2016
Hydrogen Production from Methylal (Dimethoxymethane) produced by methanol by heterogeneous nano catalysts, 2016, IROST Tehran, Iran (Prof. Ali Eliassi).
2016
Phenol degradation from waste water by catalytic ozonation, 2016, IROST, Tehran, Iran (Prof. Soheila Shokrollarzadeh)
2011
Synthesis of nano-sized gamma alumina for dimethyl ether (DME) production, 2011, IROST Tehran, Iran (Prof. Ali Eliassi).
2010
Synthesis of catalysts for Hydrogen production from methanol for Fuel Cells application, 2010, IROST Tehran, Iran (Prof. Ali Eliassi).
PROFESSIONAL EXPERIENCES AND SKILLS
1
Synthesis of different kinds of electrocatalytic membranes with morphology control used for Solid Oxide Fuel Cells, Solid Oxide Electrolyzers and gas separation Membranes.
2
Electrochemical Production of Hydrogen, Syngas and Methanol.
3
Production of Metal Organic frame works and Catalysts for different application
INVITED SPEECHES
2025
Methanol to Blue Hydrogen
Tehran, Iran
Parisa Akbarian, Maryam Ranjbar, Mehdi Kheirmand, Methanol to Blue Hydrogen: Economical and Efficient Catalytic Pathways, The 6th Iranian Methanol Seminar, 8 Feb 2025, Tehran, Iran.
2025
Hydrogen Production by Solid Oxid Electrolysers
Tehran, Iran
Maryam Ranjbar, Hydrogen Production by Solid Oxid Electrolysers, Iranian Conference of Compressed Gas, 28 April 2025, Tehran, Iran
2022
Hydrogen production and storage
Malayer, Iran
M. Ranjbar, Emerging technologies of Hydrogen production and storage for fuel cell applications, 28-29 Aug. 2022, 6th Applied Chemistry Conference, Malayer, Iran
2014
Synthesis and characterization of Cu(II) and Pb(II) supra molecules
Diyarbakir, Turkey
Maryam Ranjbar Ömer Çelik, Synthesis and characterization of Cu(II) and Pb(II) supra molecules: new precursors for CuO and PbO nanoparticles, 4th National Crystallographic Meeting with International Participation, 17-19 May, 2014, Diyarbakir, Turkey
2014
Regulatory and Institutional Support Mechanisms/Framework
Manila, Philipin
Maryam Ranjbar, Regulatory and Institutional Support Mechanisms/Framework and Critical Gaps in Testing, Standardization and Certification of Nanomaterials and Nanoproducts, Expert Group Meeting (EGM) on Testing, Standardization and Certification of Nanomaterials and Nanoproducts, 23 Jun 2014, Manila, Philipin.
2014
Sonochemical Synthesis of Gadolinium Doped Ceria
Lisbon, Portugal
M. Ranjbar, M. Nabitabar, Sonochemical Synthesis of Gadolinium Doped Ceria by New Precursors for Low and Intermediate Temperature Solid Oxide Fuel Cells, 15-17 Sept. 2014. Lisbon, Portugal.
PATENTS
M. Ranjbar, M. Nabitabar, “Fabrication of electrolyte based of ceria by different precoursors for fuel cells”, 139550740003002606, Iranian Patent Office
139550740003002606
M. Ranjbar, M. Taghizadeh, S. Sheshmani,"Production of LSM for SOFC from metal complexes” 010615, Iranian Patent Office
010615
M. Ranjbar, R. Aghaee Hakak, S. Mirzaee, “Production of zinc methionine complex by sonochemical method as supplementary food”, 139550140003001496, Iranian Patent Office
139550140003001496
S. Shokrollahzadeh, M. Ranjbar, M. Abbassi, “Catalytic Ozonation by ZnO/expanded Perlite for remazol black 5 degredation”, 139550140003001143, Iranian Patent Office
139550140003001143
M. Ranjbar, S. Shokrollahzadeh, M. Bayat, “Synthesis and Characterization of new Fe and Mn complexes and their application for catalytic ozonation process”, 139550140003001141, Iranian Patent Office
139550140003001141
M. Ranjbar, M. Abdollahi, R. Ranjbar, “Preparation of hydrofluoric acid from fluorspar in rubber line reactor at low temperature", 1388050396, Iranian Patent Office.
1388050396
M. Ranjbar, “Production of cadmium sulphate from zinc factory wastes via solvent extraction”, 38703830, Iranian Patent Office
38703830
M. Ranjbar, S. Safarzadematin, “Preparation of alkaline silicates via pyrometalurgical dusts”, 38703831, Iranian Patent Office
38703831
S. Safarzadematin, M. Ranjbar, “preparation of colloidal nanosilica and nanosilica powder from water glass”, 49833, Iranian Patent Office
49833
RECENT PUBLICATIONS (2023-2001)
Harnessing Renewable Carbon Dioxide and Hydrogen: A Path to Sustainable Methanol Production
35, 10-14
Parisa Akbarian, Maryam Ranjbar, Mehdi Khairmand, Niloufar Naseri Jahromi, Arya Abdollahi, Harnessing Renewable Carbon Dioxide and Hydrogen: A Path to Sustainable Methanol Production, Petroleum Research, 2025, 35, 10-14.
Zeolitic-imidazolate Framework Synthesized with the Mechanochemical Method: Impressive Removal of Nine Reactive Dyes of Wastewaters
112-127
Ashraf Sadat Shahvelayati; Shabnam Alibakhshi; Maryam Ranjbar, Zeolitic-imidazolate Framework Synthesized with the Mechanochemical Method: Impressive Removal of Nine Reactive Dyes of Wastewaters, Chem Rev Lett 8 (2025) 112-127
Enhanced adsorption and removal of Cd(II) from aqueous solution by amino‑functionalized ZIF‑8
14:10736
Amir Khosravi, Razieh Habibpour, Maryam Ranjbar, Enhanced adsorption and removal of Cd(II) from aqueous solution by amino‑functionalized ZIF‑8, Scientific Reports, (2024) 14:10736
Crystal structures and thermal analyses of three new high-energy hydrazinium hydro-closo-borates
10.078
Lucas W. Zimmermann, Rouzbeh Aghaei Hakkak, Maryam Ranjbar, Thomas Schleid, Crystal structures and thermal analyses of three new high-energy hydrazinium hydro-closo-borates, International Journal of Hydrogen Energy, Volume 49, Part A, 2 January 2024, Pages 1469-1477, https://doi.org/10.1016/j.ijhydene.2023.10.078
STUDENT THESIS
2023
Synthesis and Characterization of Closo Hydroborates for production of hydrogen as solid State suitable for Solid Oxide Fuel Cells
PhD Project
Synthesis and Characterization of Closo Hydroborates for production of hydrogen as solid State suitable for Solid Oxide Fuel Cells. PhD Project (Rouzbeh Aghaee Hakkak) 2023 (as co supervisor with collaboration of Prof. Dr. Thomas Schleid Stuttgart University, Germany)
2023
Synthesis, characterization, and application of new imidazolate MOFs for adsorption of Cd, Ni, and Pb metal ions
PhD Project
Synthesis, characterization, and application of new imidazolate MOFs for adsorption of Cd, Ni, and Pb metal ions, PhD Project (Amir Khosravi), 2023, (as main supervisor, with collaboration Dr Razieh Habibpour)
2022
Synthesis and characterization of metal-organic frame work (MOF) based on imidazole derivatives and their application in removal of organic pollutants
PhD Project
Synthesis and characterization of metal-organic frame work (MOF) based on imidazole derivatives and their application in removal of organic pollutants, PhD Project (Shabnam AliBakhshi), 2022, (Co supervisor).
2018
Investigation of Metal Organic Frameworkseffects on Performance of Pervoskite Solar Cells, PhD Project (Mahsa Seifpanah)
PhD Project
Investigation of Metal Organic Frameworkseffects on Performance of Pervoskite Solar Cells, PhD Project (Mahsa Seifpanah), 2018 (as main supervisor with collaboration Dr Mohamad Abedi).
CONFERENCE PAPERS
2025
Fabrication of structurally engineered proton exchange membranes from perovskite and brown millerite compounds for hydrogen production
Kerman, Iran
Maryam Ranjbar*, Elham Kohestanian, Fatemeh Ebrahimi, J. Prof. Bertold Rachet, Jon Zonck, Parisa Estaghfari, Fabrication of structurally engineered proton exchange membranes from perovskite and brown millerite compounds for hydrogen production, 32nd National Conference of Crystallography and Mineralogy of Iran, 26-27 Fen 2025, Kerman, Iran.
2024
Crystal Structure and Thermal Behavior of (NH4)3X[B12H12]
Tehran, Iran
Rouzbeh Aghaei, Niloofar Naseri, Maryam Ranjbar, Thomas Schleid, New solid state hydrogen carriers: Crystal Structure and Thermal Behavior of (NH4)3X[B12H12], 22nd Iranian Chemistry Congress, 13-14, May 2024, Tehran, Iran.
2024
Harnessing CO2 and Renewable Hydrogen: The Pathway to Sustainable Green Methanol Production
Tehran, Iran
Parisa Akbarian, Maryam Ranjbar, Mehdi Kheirmand, Harnessing CO2 and Renewable Hydrogen: The Pathway to Sustainable Green Methanol Production, Hydro Nova, 7-8 Dec. 2024, Tehran, Iran
2025
Methanol to Blue Hydrogen
PhD Project
Parisa Akbarian, Maryam Ranjbar, Mehdi Kheirmand, Methanol to Blue Hydrogen: Economical and Efficient Catalytic Pathways, The 6th Iranian Methanol Seminar, 8 Feb 2025, Tehran, Iran.
Prof. Maryam Ranjbar
Phone
Phone: (+49) 162 837 8933
Mobile: (+98) 912 218 9023
marandjbar@irost.ac.ir