Stavros Karakalos

Surface Scientist with extensive experience in materials characterization

Santa Clarita, California, United States of America

Research Expertise

Materials Science
Surface Science
Physical Chemistry
Condensed Matter Physics
Heterogeneous Catalysis
Biochemistry
Catalysis
Colloid and Surface Chemistry
Renewable Energy, Sustainability and the Environment
Environmental Chemistry
Pollution
Nuclear Energy and Engineering
Bioengineering
Process Chemistry and Technology
Electrical and Electronic Engineering
Mechanical Engineering
Mechanics of Materials
Surfaces, Coatings and Films
Surfaces and Interfaces
Inorganic Chemistry
Physical and Theoretical Chemistry
Electrochemistry
Energy Engineering and Power Technology
Materials Chemistry
Electronic, Optical and Magnetic Materials
Metals and Alloys
Ceramics and Composites
Industrial and Manufacturing Engineering
Organic Chemistry

About

As a chemical engineer with a passion for advancing materials science, I bring a wealth of expertise to the field of materials characterization and research. My professional journey has been defined by a relentless pursuit of understanding surface phenomena and interfaces through cutting-edge techniques. My academic background has provided me with a strong foundation in chemical engineering, allowing me to delve deeply into the intricate world of materials characterization. Over the years, I have honed my skills in utilizing surface-sensitive techniques to unravel the complexities of various materials. A significant portion of my research endeavors has been dedicated to exploring heterogeneous catalysis and the interfaces crucial to battery technologies. Through meticulous experimentation and analysis, I have contributed to uncovering insights that drive innovation in energy storage and conversion systems. My expertise extends to semiconductor materials, where I have actively engaged in research pertaining to solar cells and electrochemical cells. By leveraging state-of-the-art laboratory facilities, including Ultra High Vacuum techniques and advanced microscopic capabilities such as electron microscopes and energy-dispersive X-ray spectroscopy, I have been able to push the boundaries of what is possible in materials science. At the core of my work lies a commitment to pushing the frontiers of knowledge and driving practical applications. My fully equipped laboratory serves as a hub for interdisciplinary exploration, where collaboration and innovation thrive. I am driven by a profound curiosity to unravel the mysteries of materials behavior and to translate these discoveries into tangible solutions that address pressing societal challenges. With a blend of academic rigor, technical proficiency, and a relentless drive for excellence, I am poised to make enduring contributions to the ever-evolving landscape of materials science and engineering.

Legacy Map

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Publications

Single Atomic Iron Catalysts for Oxygen Reduction in Acidic Media: Particle Size Control and Thermal Activation
Journal of the American Chemical Society
2017
Atomically dispersed manganese catalysts for oxygen reduction in proton-exchange membrane fuel cells
Nature Catalysis
2018
Highly active atomically dispersed CoN4 fuel cell cathode catalysts derived from surfactant-assisted MOFs: carbon-shell confinement strategy
Energy & Environmental Science
2019
Metal-organic framework-derived nitrogen-doped highly disordered carbon for electrochemical ammonia synthesis using N2 and H2O in alkaline electrolytes
Nano Energy
2018
Thermally Driven Structure and Performance Evolution of Atomically Dispersed FeN4 Sites for Oxygen Reduction
Angewandte Chemie International Edition
2019
Ordered Pt3Co Intermetallic Nanoparticles Derived from Metal–Organic Frameworks for Oxygen Reduction
Nano Letters
2018
Single Cobalt Sites Dispersed in Hierarchically Porous Nanofiber Networks for Durable and High‐Power PGM‐Free Cathodes in Fuel Cells
Advanced Materials
2020
3D porous graphitic nanocarbon for enhancing the performance and durability of Pt catalysts: a balance between graphitization and hierarchical porosity
Energy & Environmental Science
2019
Surface refinement and electronic properties of graphene layers grown on copper substrate: An XPS, UPS and EELS study
Applied Surface Science
2011
Morphology Control of Carbon-Free Spinel NiCo2O4 Catalysts for Enhanced Bifunctional Oxygen Reduction and Evolution in Alkaline Media
ACS Applied Materials & Interfaces
2017
Atomically dispersed single iron sites for promoting Pt and Pt3Co fuel cell catalysts: performance and durability improvements
Energy & Environmental Science
2021
Atomically Dispersed Single Ni Site Catalysts for Nitrogen Reduction toward Electrochemical Ammonia Synthesis Using N2 and H2O
Small Methods
2020
Engineering Atomically Dispersed FeN4 Active Sites for CO2 Electroreduction
Angewandte Chemie International Edition
2020
Quaternary FeCoNiMn-Based Nanocarbon Electrocatalysts for Bifunctional Oxygen Reduction and Evolution: Promotional Role of Mn Doping in Stabilizing Carbon
ACS Catalysis
2017
Dynamically Unveiling Metal–Nitrogen Coordination during Thermal Activation to Design High‐Efficient Atomically Dispersed CoN4 Active Sites
Angewandte Chemie
2021
Metal–organic framework@silica as a stationary phase sorbent for rapid and cost-effective removal of hexavalent chromium
Journal of Materials Chemistry A
2018
Atomically Dispersed Dual‐Metal Site Catalysts for Enhanced CO2 Reduction: Mechanistic Insight into Active Site Structures
Angewandte Chemie
2022
High-performance ammonia oxidation catalysts for anion-exchange membrane direct ammonia fuel cells
Energy & Environmental Science
2021
Atomically dispersed single Ni site catalysts for high-efficiency CO2 electroreduction at industrial-level current densities
Energy & Environmental Science
2022
Single-Iron Site Catalysts with Self-Assembled Dual-size Architecture and Hierarchical Porosity for Proton-Exchange Membrane Fuel Cells
Applied Catalysis B: Environmental
2020
Pt alloy nanoparticles decorated on large-size nitrogen-doped graphene tubes for highly stable oxygen-reduction catalysts
Nanoscale
2018
A Ni-loaded, metal–organic framework–graphene composite as a precursor for in situ electrochemical deposition of a highly active and durable water oxidation nanocatalyst
Chemical Communications
2019
Stimuli-Modulated Metal Oxidation States in Photochromic MOFs
Journal of the American Chemical Society
2022
Boron-hyperdoped silicon for the selective oxidative dehydrogenation of propane to propylene
Chemical Communications
2020
Hydrogen generation via ammonia decomposition on highly efficient and stable Ru-free catalysts: approaching complete conversion at 450 °C
Energy & Environmental Science
2022
Hierarchical Corannulene‐Based Materials: Energy Transfer and Solid‐State Photophysics
Angewandte Chemie
2017
Structure and chemistry of the solid electrolyte interphase (SEI) on a high capacity conversion-based anode: NiO
Journal of Materials Chemistry A
2021
Methane Combustion Over Ni/CexZr1–xO2 Catalysts: Impact of Ceria/Zirconia Ratio
ChemCatChem
2020
Mechanistic understanding of support effect on the activity and selectivity of indium oxide catalysts for CO2 hydrogenation
Chemical Engineering Journal
2021
Cs3REIIIGe3O9 (RE = Pr, Nd, and SmYb) and Cs8TbIII2TbIVGe9O27: A Rare Example of a Mixed-Valent Tb(III)/Tb(IV) Oxide
Unknown Venue
Tuning the thermal activation atmosphere breaks the activity–stability trade-off of Fe–N–C oxygen reduction fuel cell catalysts
Nature Catalysis
2023
Hydrogenation of dimethyl oxalate to ethylene glycol over Cu/KIT-6 catalysts
Catalysis Science & Technology
2021
Heterometallic multinuclear nodes directing MOF electronic behavior
Chemical Science
2020
Comparative Spectroscopic Study of Aluminum Nitride Grown by MOCVD in H2 and N2 Reaction Environment
Coatings
2022
A Metal‐Organic Framework (MOF)‐Based Multifunctional Cargo Vehicle for Reactive‐Gas Delivery and Catalysis
Angewandte Chemie International Edition
2022
Crowded supported metal atoms on catalytically active supports may compromise intrinsic activity: A case study of dual-site Pt/α-MoC catalysts
Applied Catalysis B: Environmental
2023
Surveying Iron–Organic Framework TAL-1-Derived Materials in Ligandless Heterogeneous Oxidative Catalytic Transformations of Alkylarenes
Synlett
2019
Mixed-metal hybrid ultramicroporous material (HUM) precursor to graphene-supported tetrataenite as a highly active and durable NPG catalyst for the OER
Dalton Transactions
2021
Fabrication and Characterization of Cr-Based Schottky Diode on n-Type 4H-SiC
Materials Science Forum
2009
Challenging the Activity-Durability Tradeoff of Fe-N-C Fuel Cell Catalysts via Controlling thermal Activation Atmosphere
Unknown Venue
2022
The preparation of silica supported, dilute limit PdAu alloys via simultaneous strong electrostatic adsorption
Catalysis Science & Technology
2023
Stabilization of Ultrasmall Platinum Nanoparticles by Nitrogen-Doped Carbon: Implications for Catalysis and Electrocatalysis
ACS Applied Nano Materials
2022
High-Platinum-Content Catalysts on Atomically Dispersed and Nitrogen Coordinated Single Manganese Site Carbons for Heavy-Duty Fuel Cells
Journal of The Electrochemical Society
2022
Atomically Dispersed Dual‐Metal Site Catalysts for Enhanced CO2 Reduction: Mechanistic Insight into Active Site Structures
Angewandte Chemie International Edition
2022
Structure–property investigations in urea tethered iodinated triphenylamines
Physical Chemistry Chemical Physics
2022
Effects of Self-Assembly on the Photogeneration of Radical Cations in Halogenated Triphenylamines
The Journal of Physical Chemistry C
2021
Promoting Atomically Dispersed MnN4 Sites via Sulfur Doping for Oxygen Reduction: Unveiling Intrinsic Activity and Degradation in Fuel Cells
ACS Nano
2021
Single Atomic Iron Site Catalysts via Benign Aqueous Synthesis for Durability Improvement in Proton Exchange Membrane Fuel Cells
Journal of The Electrochemical Society
2021
Stabilization of Catalytic Surfaces through Core–Shell Structures: Ag–Ir/Al2O3 Case Study
ACS Catalysis
2020
Atomically Dispersed MnN4 Catalysts via Environmentally Benign Aqueous Synthesis for Oxygen Reduction: Mechanistic Understanding of Activity and Stability Improvements
ACS Catalysis
2020
Enhanced Performance of Oxygen-Functionalized Multiwalled Carbon Nanotubes as Support for Pt and Pt–Ru Bimetallic Catalysts for Methanol Electrooxidation
ACS Applied Energy Materials
2020
Low-Temperature Lithium Plating/Corrosion Hazard in Lithium-Ion Batteries: Electrode Rippling, Variable States of Charge, and Thermal and Nonthermal Runaway
ACS Applied Energy Materials
2020
Ternary PtIrNi Catalysts for Efficient Electrochemical Ammonia Oxidation
ACS Catalysis
2020
Enhanced hydrogenation of dimethyl oxalate to ethylene glycol over indium promoted Cu/SiO2
Journal of Catalysis
2019
Evolution of steady-state material properties during catalysis: Oxidative coupling of methanol over nanoporous Ag0.03Au0.97
Journal of Catalysis
2019
Tuning the Chemical Environment within the UiO-66-NH2 Nanocages for Charge-Dependent Contaminant Uptake and Selectivity
Inorganic Chemistry
2019
Non-oxidative dehydrogenation of ethane to ethylene over ZSM-5 zeolite supported iron catalysts
Applied Catalysis B: Environmental
2019
Adsorptive Desulfurization of 4,6-Dimethyldibenzothiophene on Bimetallic Mesoporous Y Zeolites: Effects of Cu and Ce Composition and Configuration
Industrial & Engineering Chemistry Research
2019
Thermodynamics and Electronic Properties of Heterometallic Multinuclear Actinide-Containing Metal–Organic Frameworks with “Structural Memory”
Journal of the American Chemical Society
2019
Cs3REIIIGe3O9 (RE = Pr, Nd, and Sm–Yb) and Cs8TbIII2TbIVGe9O27: A Rare Example of a Mixed-Valent Tb(III)/Tb(IV) Oxide
Inorganic Chemistry
2019
Connecting Wires: Photoinduced Electronic Structure Modulation in Metal–Organic Frameworks
Journal of the American Chemical Society
2019
Flux crystal growth of uranium(v) containing oxyfluoride perovskites
Inorganic Chemistry Frontiers
2019
Large-diameter and heteroatom-doped graphene nanotubes decorated with transition metals as carbon hosts for lithium–sulfur batteries
Journal of Materials Chemistry A
2019
Crossing the great divide between single-crystal reactivity and actual catalyst selectivity with pressure transients
Nature Catalysis
2018
Ambient Oxidation of Ultrasmall Platinum Nanoparticles on Microporous Carbon Catalyst Supports
ACS Applied Nano Materials
2018
Stack the Bowls: Tailoring the Electronic Structure of Corannulene‐Integrated Crystalline Materials
Angewandte Chemie International Edition
2018
Stack the Bowls: Tailoring the Electronic Structure of Corannulene‐Integrated Crystalline Materials
Angewandte Chemie
2018
Aqueous-Phase Hydrogenation of Succinic Acid Using Bimetallic Ir–Re/C Catalysts Prepared by Strong Electrostatic Adsorption
ACS Catalysis
2018
Na2(UO2)(BO3): An All-Uranium(V) Borate Synthesized under Mild Hydrothermal Conditions
Inorganic Chemistry
2018
Improved Capacity Retention of Metal Oxide Anodes in Li‐Ion Batteries: Increasing Intraparticle Electronic Conductivity through Na Inclusion in Mn3O4
ChemElectroChem
2018
Liquid phase hydrodeoxygenation of anisole, 4-ethylphenol and benzofuran using Ni, Ru and Pd supported on USY zeolite
Applied Catalysis A: General
2018
Cobalt Doping as a Pathway To Stabilize the Solid-State Conversion Chemistry of Manganese Oxide Anodes in Li-Ion Batteries
The Journal of Physical Chemistry C
2018
Monte Carlo Simulations of the Uptake of Chiral Compounds on Solid Surfaces
The Journal of Physical Chemistry B
2017
Understanding Uptake of Pt Precursors During Strong Electrostatic Adsorption on Single-Crystal Carbon Surfaces
Topics in Catalysis
2017
Engineering reduced graphene oxides with enhanced electrochemical properties through multiple-step reductions
Electrochimica Acta
2017
Multifaceted Modularity: A Key for Stepwise Building of Hierarchical Complexity in Actinide Metal–Organic Frameworks
Journal of the American Chemical Society
2017
Pt Immobilization within a Tailored Porous-Organic Polymer–Graphene Composite: Opportunities in the Hydrogen Evolving Reaction
ACS Catalysis
2017
Catalytic Descriptors for the Design of Ziegler–Natta Catalysts Revealed by the Investigation of the Cl–Ti(0001) Interaction by Density of States Calculations
The Journal of Physical Chemistry C
2017
Structural Differentiation of the Reactivity of Alcohols with Active Oxygen on Au(110)
Topics in Catalysis
2017
Tailoring the Oxygen Reduction Activity of Hemoglobin through Immobilization within Microporous Organic Polymer–Graphene Composite
ACS Applied Materials & Interfaces
2017
Cover Picture: Post‐Synthetic Immobilization of Ni Ions in a Porous‐Organic Polymer‐Graphene Composite for Non‐Noble Metal Electrocatalytic Water Oxidation (ChemCatChem 15/2017)
ChemCatChem
2017
Post‐Synthetic Immobilization of Ni Ions in a Porous‐Organic Polymer‐Graphene Composite for Non‐Noble Metal Electrocatalytic Water Oxidation
ChemCatChem
2017
3D polymer hydrogel for high-performance atomic iron-rich catalysts for oxygen reduction in acidic media
Applied Catalysis B: Environmental
2017
Hierarchical Corannulene‐Based Materials: Energy Transfer and Solid‐State Photophysics
Angewandte Chemie International Edition
2017
Pillars of assembled pyridyl bis-urea macrocycles: a robust synthon to organize diiodotetrafluorobenzenes
CrystEngComm
2017
Preferentially Oriented Ag Nanocrystals with Extremely High Activity and Faradaic Efficiency for CO2 Electrochemical Reduction to CO
ACS Applied Materials & Interfaces
2018
Synergism of carbon nanotubes and porous-organic polymers (POPs) in CO2 fixation: One-pot approach for bottom-up assembly of tunable heterogeneous catalyst
Applied Catalysis B: Environmental
2017
Water facilitates oxygen migration on gold surfaces
Physical Chemistry Chemical Physics
2018
Catalytic production of methyl acrylates by gold-mediated cross coupling of unsaturated aldehydes with methanol
Surface Science
2016
Changes in the Enantiomeric Composition of Chiral Mixtures Upon Adsorption on a Non‐Chiral Surface
Angewandte Chemie
2016
Active sites for methanol partial oxidation on nanoporous gold catalysts
Journal of Catalysis
2016
Changes in the Enantiomeric Composition of Chiral Mixtures Upon Adsorption on a Non‐Chiral Surface
Angewandte Chemie International Edition
2016
Continuous Catalytic Production of Methyl Acrylates from Unsaturated Alcohols by Gold: The Strong Effect of C═C Unsaturation on Reaction Selectivity
ACS Catalysis
2016
Noncovalent Bonding Controls Selectivity in Heterogeneous Catalysis: Coupling Reactions on Gold
Journal of the American Chemical Society
2016
Amplification of Enantioselectivity on Solid Surfaces Using Nonchiral Adsorbates
The Journal of Physical Chemistry C
2015
Dependence of the adsorption of chiral compounds on their enantiomeric composition
Surface Science
2014
Enantiospecific Kinetics in Surface Adsorption: Propylene Oxide on Pt(111) Surfaces
The Journal of Physical Chemistry C
2013
Investigation of the Ti/MgCl2 interface on a Si(111) 7 × 7 substrate
The Journal of Chemical Physics
2012
The interfacial properties of MgCl2 thin films grown on Ti(0001)
The Journal of Chemical Physics
2010
The interfacial properties of MgCl2 films grown on a flat SiO2/Si substrate. An XPS and ISS study
Applied Surface Science
2009
Cr/4H‐SiC Schottky contacts investigated by electrical and photoelectron spectroscopy techniques
physica status solidi (a)
2008
Study of the early stages of Cr/4H‐SiC(11‐20) interface formation and its behavior at high temperatures
physica status solidi c
2008
Surface alloying in the Sn/Ni(111) system studied by synchrotron radiation photoelectron valence band spectroscopy and ab-initio density of states calculations
Thin Solid Films
2008
The interfacial properties of MgCl2 thin films grown on Si(111)7×7
The Journal of Chemical Physics
2008
Study of the early stages of Cr/6H-SiC(0001) interface formation
Applied Surface Science
2006
The transition from the adsorbed state to a surface alloy in the Sn/Ni(111) system
Surface Science
2006

Education

University of Patras School of Engineering

PhD, Chemical Engineering / February, 2009

Patras

University of Patras School of Engineering

MSc, Chemical Engineering / September, 2005

Patras

University of Ioannina School of Sciences and Technology

B.S. , Physics / September, 2003

Ioannina

Experience

Institute for Carbon Management, UCLA

Assistant Director / April, 2022September, 2022

University of South Carolina

Research Assistant Professor / July, 2016March, 2022

Harvard University

Post-doctoral Associate / January, 2015June, 2016

University of California Riverside

Post-doctoral Employee / June, 2011December, 2014

FORTH/ICE-HT

Post-doctoral Researcher / February, 2010March, 2011

Fralock

Sr Materials Engineer / October, 2022Present

Phasma Labs Inc.

Lead Scientist / MayPresent

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