1. Park, J. H.; Ahn, H. S.*
    "Electrochemical synthesis of multimetallic nanoparticles and their application in alkaline oxygen reduction catalysis" 
    Appl. Surf. Sci. 2020, 504, 144517.

  2. Jeun, Y. E.; Park, J. H.; Kim, J. Y.; Ahn, H. S.*
    "Stoichiometry‐Controlled Synthesis of Nanoparticulate Mixed‐Metal Oxyhydroxide Oxygen Evolving Catalysts by Electrochemistry in Aqueous Nanodroplets" 
    Chem. Eur. J. 2020, 26, 4039 –4043.

  3. Kim, J. Y.; Ryu, C. H.; Lee, J. H.; Pawar, A. U.; Jang, W. D.; Kang, Y. S.; Ahn, H. S.*
    "Electrodeposited CuAgHg Multimetallic Thin Films for Improved CO2 Conversion: the Dramatic Impact of Hg Incorporation on Product Selectivity" 
    ACS Appl. Energy Mater. 2020, 3, 7, 6670–6677

  4. Lee, M. W.; Kwon, D. J.; Park, J.; Pyun, J. C.; Kim, Y. J.; Ahn, H. S.*
    "Electropolymerization in a confined nanospace: synthesis of PEDOT nanoparticles in emulsion droplet reactors"
    Chem. Commun. 2020, 56, 9624-9627


  1. Kim, T. Y.; Choi, M. K.; Ahn, H. S., Rho. J. S.; Jeong, H. M.; Kim, K. H. 
    "Fabrication and characterization of zeolitic imidazolate framework-​embedded cellulose acetate membranes for osmotically driven membrane process"
    Sci. Rep. 2019, 9, 5779

  2. Oh, H.; Choi, S; Kim, J. Y.; Ahn, H. S.*; Hong, S. W.*
    "Stoichiometric and electrocatalytic production of hydrogen peroxide driven by a water-​soluble copper(II) complex"
    Chem. Commun. 2019, 55, 12659.


  1. Kim, J. Y.; Ahn, H. S.*; Bard, A. J.* 
    "Surface Interrogation Scanning Electrochemical Microscopy for a Photoelectrochemical Reaction: Water Oxidation on a Hematite Surface"
    Anal. Chem. 2018, 90, 3045.

  2. Ryu, D. H.; Kim, Y. J.; Kim, S. I.; Hong, H.; Ahn, H. S.; Kim, K.; Ryu, W. H.
    “Thylakoid-Deposited Micro-Pillar Electrodes for Enhanced Direct Extraction of Photosynthetic Electrons”
    Nanomaterials 2018, 8, 189.

  3. Fukuzumi, S.*; Lee, Y.-M.*; Ahn, H. S.*; Nam, W.*
    “Mechanisms of Catalytic Reduction of CO2 with Heme and Nonheme Metal Complexes”
    Chem. Sci. 2018, 9, 6017.

  4. Jeun, Y. E.; Baek, B.; Lee, M. W.; Ahn, H. S.*
    “Surfactant-free Electrochemical Synthesis of Metallic Nanoparticles via Stochastic Collisions of Aqueous Nanodroplet Reactors”
    Chem. Commun. 2018, 54, 10052.

  5. Han, J. H.; Kim, H. K.; Baek, B.; Han, J.; Ahn, H. S.; Baik, M.-H.; Cheon, J.
    "Activation of the Basal Plane in Two Dimensional Transition Metal Chalcogenide Nanostructures"
    J. Am. Chem. Soc. 2018, 140, 13663.

  6. Kai, T.; Zhou, M.; Johnson, S.; Ahn, H. S.; Bard, A. J.
    "Direct Observation of C2O4•– and CO2•– by Oxidation of Oxalate within Nanogap of Scanning Electrochemical Microscope" 
    J. Am. Chem. Soc. 2018, 140, 16178.


  1. Ahn, H. S.; Bard, A. J.
    “Assessment of the Stability and Operability of Cobalt Phosphide Electrocatalyst for Hydrogen Evolution”
    Anal. Chem. 2017, 89, 8574.

  2. Liang, Z. X.; Ahn, H. S.*; Bard, A. J.*
    “A Study of the Mechanism of the Hydrogen Evolution Reaction on Nickel by Surface Interrogation Scanning Electrochemical Microscopy”
    J. Am. Chem. Soc. 2017, 139, 4854.


  1. Ahn, H. S.; Bard. A. J.
    “Surface Interrogation Scanning Electrochemical Microscopy of Ni1-xFexOOH (0 < x < 0.27) Oxygen Evolving Catalyst: Kinetics of the ‘Fast’ Iron Sites” 
    J. Am. Chem. Soc. 2016, 138, 313.

  2. Ahn, H. S.; Bard, A. J.
    “Electrochemical Surface Interrogation of MoS2 Hydrogen Evolving Catalyst”
    J. Phys. Chem. Lett. 2016, 7, 2748.


  1. Ahn, H. S.; Bard, A. J.
    “Surface Interrogation of CoPi Water Oxidation Catalyst by Scanning Electrochemical Microscopy”
    J. Am. Chem. Soc. 2015, 137, 612.

  2. Ahn, H. S.; Yano, J.; Tilley, T. D.
    “Water Oxidation by Cobalt Centers on Various Oxide Surfaces: The Effects of Oxide Surface Acidity and Oxygen Atom Affinity on Catalysis”
    ACS Catal. 2015, 5, 2573.

  3. Ahn, H. S.; Bard, A. J.
    “Single-Nanoparticle Collision Events: Tunneling Electron Transfer on a TiO2 Passivated n-Silicon Electrode”
    Angew. Chem. Int. Ed. 2015, 54, 13753.

  4. Ahn, H. S.; Bard. A. J.
    “Switching Transient Generation in Surface Interrogation Scanning Electrochemical Microscopy and Time of Flight Techniques”
    Anal. Chem. 2015, 87, 12276.

  5. Renault, C.; Marchuk, K.; Ahn, H. S.; Titus, E. J.; Kim, J.; Willets, K. A.; Bard, A. J.
    “Observation of Nanometer-Sized Electro-Active Defects in Insulating Layers by Fluorescence Microscopy and Electrochemistry”
    Anal. Chem. 2015, 87, 5730.

  6. Liu, S.; Li, L.; Ahn, H. S.; Manthiram, A.
    “Delineating the Roles of Co3O4 and N-doped Carbon Nanoweb (CNW) in Bifunctional Co3O4/CNW Catalysts for Oxygen Reduction and Oxygen Evolution Reactions”
    J. Mater. Chem. A 2015, 3, 11615.

  7. Hsu, H.-Y.; Ji, L.; Ahn, H. S.; Zhao, J.; Yu, E. T.; Bard, A. J.
    “A Liquid Junction Photoelectrochemical Solar Cells Based on p-Type MeNH3PbI3 Perovskite with 1.05 V Open-Circuit Photovoltage”
    J. Am. Chem. Soc. 2015, 137, 14758.


  1. Ahn, H. S.; Davenport, T. C.; Tilley, T. D.
    “Molecular Cobalt Electrocatalyst for Proton Reduction at a Low Overpotential”
    Chem. Commun. 2014, 50, 3834.

  2. Davenport, T. C.; Ahn, H. S.; Ziegler, M. S. Tilley, T. D.
    “A Molecular Structural Analog of Proposed Dinuclear Active Sites in Cobalt-Based Water Oxidation Catalysts”
    Chem. Commun. 2014, 50, 6326.

  3. Eisenberg, D.; Ahn, H. S.; Bard, A. J.
    “Enhanced Photoelectrochemical Water Oxidation on Bismuth Vanadate by Electrodeposition of Amorphous Titanium Dioxide”
    J. Am. Chem. Soc. 2014, 136, 14011.


  1. Ahn, H. S.; Tilley, T. D.
    “Electrocatalytic Water Oxidation at Neutral pH by a Nanostructured Co(PO3)2 Anode”
    Adv. Funct. Mater. 2013, 23, 227.

  2. Ahn, H. S.; Yano, J.; Tilley, T. D.
    “Photocatalytic Water Oxidation by Very Small Cobalt Domains on a Silica Surface”
    Energy Environ. Sci. 2013, 6, 3080.

  3. Rumberger, E. M. W.; Ahn, H. S.; Bell, A. T.; Tilley, T. D. “Water oxidation catalysis via immobilization of the dimanganese complex [Mn2(μ-O)2Cl(μ-O2CCH3)(bpy)2(H2O)](NO3)2 onto silica”
    Dalton Trans. 2013, 42, 12238.

To request a copy of one of the publications, or if you have concerns regarding a paper: please contact the professor.