A5006487321- Electrocatalysts for Energy Conversion
- Fuel Cells and Related Materials
- Advanced Photocatalysis Techniques
- Conducting polymers and applications
- Machine Learning in Materials Science
- Electrochemical Analysis and Applications
- Corrosion Behavior and Inhibition
- ZnO doping and properties
- Electrodeposition and Electroless Coatings
- Scientific Computing and Data Management
- Advanced battery technologies research
- Graphene research and applications
- Catalytic Processes in Materials Science
- Copper-based nanomaterials and applications
- Quantum Dots Synthesis And Properties
- Advanced biosensing and bioanalysis techniques
- Innovative Microfluidic and Catalytic Techniques Innovation
- TiO2 Photocatalysis and Solar Cells
- Carbon and Quantum Dots Applications
- IoT and Edge/Fog Computing
- Nanomaterials for catalytic reactions
- Electrochemical sensors and biosensors
- Mobile Crowdsensing and Crowdsourcing
Karlsruhe Institute of Technology
2023
Sabancı Üniversitesi
2017-2022
University of Tehran
2016
Self-driving labs (SDLs) leverage combinations of artificial intelligence, automation, and advanced computing to accelerate scientific discovery.
In this study, new electrocatalysts for PEM fuel cells, based on Pt nanoparticles supported hybrid carbon support networks comprising reduced graphene oxide (rGO) and black (CB) at varying ratios, were designed prepared by means of a rapid efficient microwave-assisted synthesis method. Resultant catalysts characterized ex-situ their structure, morphology, electrocatalytic activity. addition, membrane-electrode assemblies (MEAs) fabricated using resultant evaluated in-situ cell performance...
This study highlighted the effectiveness of AI-driven multiobjective Bayesian optimization for electrocatalysis, accelerating search active and stable compositions acidic oxygen evolution reaction by 17x.
Increasing the efficiency of electrocatalyst is key demand for polymer electrolyte membrane fuel cells (PEMFC). To address activity and performance challenges commercial electrocatalyst, Pt/C, we introduce a new hybrid catalyst support Pt nanoparticles. In this regard, combining or mixing specific type carbon-based supports feasible strategy to increase utilization performance. current study, nanoparticles (NPs) were decorated on network, comprising carbon nanofiber (CNF) black (CB), by...
In this work, a novel photocatalytic reactor for the pulsed and controlled excitation of photocatalyst precise deposition metallic nanoparticles is developed. Guidelines replication its operation are provided in detail. Three different composite systems (Pt/graphene, Pt/TiO2, Au/TiO2) with monodisperse uniformly distributed particles produced by reactor, photodeposition mechanism, as well synthesis optimization strategy, discussed. The methods their technical aspects described...
This study focuses on photocatalytic syntheses, in which transition metal ions (Co2+, Fe2+, or Ni2+), as the hole scavengers and surface modifiers of partially reduced graphene oxide, PRGO, were utilized to photoreduce Pt4+. A pulsed UV reactor was used illuminate precursors. The electrostatic interaction between Ni2+) oxygen functional groups PRGO main parameter, proposed be reason controlling Pt4+ reduction Pt structure activity. alternative assumption managing oxidation states variation...
Fuel cells are one of the most efficient energy conversion systems to produce electricity. A solid ion-conducting polymer membrane is employed as both separator and electrolyte for fuel anion-exchange cells. Radiation-induced graft polymerization a versatile method fabrication low-cost alternatives commercial membranes. In this method, typically base exposed ionizing radiation which generates active radical sites within substrate. Then suitable vinyl monomer polimerized on these form...
Experimental catalyst optimization is plagued by slow and laborious efforts. Finding innovative materials key to advancing research areas for sustainable energy conversion, such as electrocatalysis. Artificial intelligence (AI)-guided bears great potential autonomously learn from data plan new experiments, identifying a global optimum significantly faster than traditional design of experiment approaches. Furthermore, it vital incorporate essential electrocatalyst features activity stability...
Polymer electrolyte membrane fuel cells (PEMFC) are one of the most efficient energy conversion systems for portable, stationary and automotive applications. In spite tremendous progress in PEMFC terms research applications, there still significant barriers to their commercialization mainly due high cost Pt catalyst durability issues. Additionally, sluggish oxygen reduction reaction (ORR) is another problem PEMFC. Platinum (Pt) nanoparticles extensively used as have not only performance...
The present work shows how the parameters of pulsed current (PC) deposition affect structural and morphological characteristics electrodeposited ZnNi/nano-SiC composite coating its corrosion properties. In this regard, ZnNi coatings containing SiC nanoparticles were from chloride bath by PC reverse (PRC) methods, effect duty cycle, frequency density studied. With low high cycles content was more than deposited medium cycle. Changing cycle affected composition, structure morphology. Elevation...
In this work, a novel photocatalytic reactor for the pulsed and controlled excitation of photocatalyst precise deposition metallic nanoparticles is developed. Guidelines replication its operation are provided in detail. Three different composite systems (Pt/graphene, Pt/TiO2, Au/TiO2) with monodisperse uniformly distributed particles produced by reactor, photodeposition mechanism, as well synthesis optimization strategy, discussed. The methods their technical aspects described...
This study demonstrated the capability of a novel method in controlling structural and electrochemical properties electrocatalysts, utilizing pulsed-ultraviolet (UV) setup for synthesis procedure. A hand-made reactor provided new set parameters. The variation UVon UVoff periods resulted samples with range different structures, compositions, activities. Graphene/Pt was prepared varying forms illumination pulse, its hydrogen oxidation oxygen reduction reaction performances were evaluated....
Self-driving labs (SDLs) leverage combinations of artificial intelligence, automation, and advanced computing to accelerate scientific discovery. The promise this field has given rise a rich community passionate scientists, engineers, social as evidenced by the development Acceleration Consortium recent Accelerate Conference. Despite its strengths, rapidly developing presents numerous opportunities for growth, challenges overcome, potential risks which remain aware. This perspective builds...
Graphene has been utilized as an alternative catalyst support for new generation polymer electrolyte membrane fuel cell (PEMFC) with many outstanding properties which are associated its 2 dimensional (D) structure [1]. However, restacking of individual graphene layers and the aggregation platinum (Pt) nanoparticles result in low Pt utilization catalytic activity [2,3]. To overcome this problem, herein supported on reduced garphene oxide-carbon black hybrids (rGO-CB) were synthesized by...
Among the other type of fuel cells, polymer electrolyte membrane cell (PEMFC) is one most attractive renewable energy sources due to its pollution-free operation in transportation, high efficacy, and compact structure [1]. Although PEMFC has numerous advantages, durability cost are primary challenges commercialization. Catalyst catalyst support play essential roles for reduce cost, improve durability, performance PEMFC. Platinum (Pt), Pt containing alloys have been extensively used as...
Polymer electrolyte membrane (PEM) fuel cells are attractive for various applications due to their high efficiency and low operation temperatures. Platinum (Pt) nanoparticles, used as catalyst in PEM cells, have cost, performance durability problems; abundance. Catalyst support materials of great importance regulating the properties nanoparticles such shape, size, dispersion. Carbon black, most commonly commercial support, has several limitations which cause degradation activity performance....