![Electrochemical Reduction of [Ni(Mebpy)3]2+. Elucidation of the Redox Mechanism by Cyclic Voltammetry and Steady-State Voltammetry in Low Ionic Strength Solutions.](/_resources/images/faculty/white/tocs/NiMebpy3-low-ionic-Barman-2020.png)
White Research Group - Electrochemistry
Electrochemical Methods, Nanobubbles, Electroorganic Synthesis, Bioanalytical Nanopore Analysis, Interfacial Kinetics and Electric Double Layer
The White group is an interdisciplinary team that applies electrochemical methods to advance the understanding of a variety of chemical, biological, and physical systems. Research topics currently include: single-molecule ionophoretic transport; nanopore analysis of biological particles; electrochemical scanned probe investigations; electrochemically generated nanobubbles; electroorganic synthesis; and the role of the electric double layer on interfacial electron-transfer kinetics and molecular transport. See below for our latest publications, and the research section for more details on our research interests.
Latest Publications:
Electrochemical Methods: Fundamentals and Applications, 3rd Edition
Allen J. Bard, Larry R. Faulkner, Henry S. White
John Wiley and Sons Ltd, New York, 2022
Simulation of the Cyclic Voltammetric Response of an Outer-Sphere Redox Species with Inclusion of the Electrical Double Layer and Ohmic Drop
K. J. Levey, M. A. Edwards, H. S. White, and J. V. Macpherson
Phys. Chem. Chem. Phys., submitted Dec. 2022
Electrocatalytic hydrogen evolution at full atomic utilization over ITO-supported sub-nano Ptn clusters: High, size-dependent activity controlled by fluxional Pt hydride species
S. Kumaria, T. Masubuchi, H. S. White, A. Alexandrova, S. L. Anderson and P. Sautet
J. Am. Chem. Soc, submitted Dec. 2022
Single-Molecule Electrical Currents Associated with Valinomycin Transport of K+
A. J. Schmeltzer, J. M. Harris, and H. S. White
ACS Nano, submitted Nov. 2022
Critical Nucleus Size and Activation Energy of Ag Nucleation by Electrochemical Observation of Isolated Nucleation Events
N. J. Vitti, P. Majumdar, and H. S. White
Langmuir, submitted Nov. 2022
Oxidation by Reduction: Efficient and Selective Oxidation of Alcohols by the Electrocatalytic Reduction of Peroxydisulfate
S. Hosseini, J. N. Janusz, M. Tanwar, A. D. Pendergast, M. Neurock, and H. S. White
J. Am. Chem. Soc. 2022, 144, 46, 21103–21115
Effect of Non-Specific Ion Adsorption and Parallel Faradaic Reactions on the Nucleation of H2 Nanobubbles
P. Majumdar, Y. Qiu and H. S. White
Journal of Electrochemical Society 2020 169 106515
Self-Terminating Redox-Reactivity and Vacancy-Induced Void Formation during Electrochemical Collision Synthesis of Hollow Ag/Ag2S Nanoparticles
U. Zahra, D. A. Robinson, and H. S. White
J. Phys. Chem. C 2022, 126, 43, 18343–18350
Finite Element Modeling of the Combined Faradaic and Electrostatic Contributions to the Voltammetric Response of Monolayer Redox Films
K. J. Levey, M. A. Edwards, H. S. White, and J. V. Macpherson
Anal. Chem. 2022 94 (37), 12673-12682
Electroprecipitation of Nanometer-Thick Films of Ln(OH)3 [Ln = La, Ce, and Lu] at Pt Microelectrodes and Their Effect on Electron-Transfer Reactions
P. Majumdar, R. Gao, and H. S. White
Langmuir, 2022, 38(26), 8125-8134
Effect of Nonuniform Mass Transport on Nanobubble Nucleation at Individual Pt Nanoparticles
N. S. Georgescu, D. A. Robinson, and H. S. White
J. Phys. Chem. C, 2021, 125, 36, 19724–19732
A High-Pressure System for Studying Oxygen Reduction
During Pt Nanoparticle Collisions
Y. Zhang, D. A. Robinson, K. McKelvey, H. Ren, H. S. White,
and M. A. Edwards
Journal of The Electrochemical Society, 2020 167 166507
3D Architectures for Batteries and Electrodes
J. W. Long, B. Dunn, D. R. Rolison, and H. S. White
Adv. Energy Mater. 2020, 10, 2002457
High-Performance Solid-State Lithium-Ion Battery with
Mixed 2D and 3D Electrodes
D. S. Ashby, C. S. Choi, M. A. Edwards, A. A. Talin, H. S. White, and B. S. Dunn
ACS Appl. Energy Mater. 2020, 3, 9, 8402–8409
Shot Noise Sets the Limit of Quantification in Electrochemical Measurements
R. Gao, M. A. Edwards, J. M. Harris, H. S. White
Current Opinion in Electrochemistry, 2020, 22:170–177
Visualization and Quantification of Electrochemical H2 Bubble Nucleation at Pt, Au, and MoS2 Substrates
Y. Liu, C. Jin, Y. Liu, K. H. Ruiz, H. Ren, Y. Fan, H. S. White,
and Q. Chen
ACS Sens. 2020
Electrochemical Generation of Individual Nanobubbles Comprising H2, D2, and HD
Y. Qiu, H. Ren, M. A. Edwards, R. Gao, K. Barman, and H. S. White
Langmuir, 2020, 36, 22, 6073–6078
Visualization of Hydrogen Evolution at Individual Platinum Nanoparticles at a Buried Interface
R. Gao, M. A. Edwards, Y. Qiu, K. Barman, and H. S. White
J. Am. Chem. Soc. 2020, 142, 19, 8890–8896
Nitrogen Bubbles at Pt Nanoelectrodes in Non-Aqueous Medium-Oscillating Behavior and Geometry of Critical Nuclei
Q. Chen, Y. Liu, M. A. Edwards, Y. Liu, and H. S. White
Anal. Chem. 2020. 92, 9, 6408-6414
Single-Entity Electrochemistry at Confined Sensing Interfaces
Y. Ying, J. Wang, A. R Leach, Y. Jiang, R. Gao, C. Xu, M. A. Edwards, A. D. Pendergast,H. Ren, C. K. Weatherly, W. Wang, P. Actis, L. Mao, H. S. White, and Y. Long
SCIENCE CHINA Chemistry, Volume 63 , Issue 5 : 589-618(2020)
Effect of Viscosity on the Collision Dynamics and Oxidation of Individual Ag Nanoparticles
D. A. Robinson, M. A. Edwards, Y. Liu, H. Ren. H. S. White
J. Phys. Chem. 2020. 124, 16, 9068-9076
Electrochemical Reduction of [Ni(Mebpy)3]2+. Elucidation of the Redox Mechanism by Cyclic Voltammetry and Steady-State Voltammetry in Low Ionic Strength Solutions.
ChemElectroChem. 2020. 7(6), 1473-1479
Electrochemically Controlled Nucleation of Single CO2 Nanobubbles via Formate Oxidation at Pt Nanoelectrodes
H. Ren, M. A. Edwards, Y. Wang, H. S. White
J. Phys. Chem. Lett. 2020.11, 4, 1291-1296.
Coupled Electron- and Phase-Transfer Reactions at a Three-Phase Interface
C. K. Terry Weatherly, H. Ren, M. A. Edwards, L. Wang, H. S. White
J. Am. Chem. Soc.2019. 141, 45, 18091-18098
Electrochemical Synthesis of Individual Core@Shell and Hollow Ag/Ag2S Nanoparticles
D. A. Robinson, H. S. White
Nano Lett. 2019. 19, 8, 5612-5619.
Enhancing Lithium Insertion with Electrostatic Nanoconfinement in a Lithography Patterned Precision Cell
S. X. Li, N. S. Kim, K. McKelvey, C. Liu, H. S. White, G. W. Rubloff, S. B. Lee, M. A. Reed
ACS Nano. 2019. 13, 7, 8481-8489
Nanoscale Fluid Vortices and Nonlinear Electroosmotic Flow Drive Ion Current Rectification in the Presence of Concentration Gradients
J. Rabinowitz, M. A. Edwards, E. Whittier, K. Jayant, K. L. Shepard
J. Phys. Chem. A. 2019 DOI: 10.1021/acs.jpca.9b04075
A synthetic chemist's guide to electroanalytical tools for studying reaction mechanisms
C. Sandford, M. A. Edwards, K. J. Klunder, D. P. Hickey, M. Li, K. Barman, M. S. Sigman, H. S. White and S. D. Minteer
Chem. Sci., 2019, 10, 6404-6422.
Observing Transient Bipolar Electrochemical Coupling on Single Nanoparticles Translocating through a Nanopore
C. Han, R. Hao, Y. Fan, M. A. Edwards, H. Gao, and B. Zhang
Langmuir, 2019, 35, 22, 7180-7190
Electrochemically Driven, Ni-Catalyzed Aryl Amination: Scope, Mechanism, and Applications
Y. Kawamata, J. C. Vantourout, D. P. Hickey, P. Bai, L. Chen, Q. Hou, W. Qiao, K. Barman, M. A. Edwards, A. F. Garrido-Castro, J. N. deGruyter, H. Nakamura, K. W. Knouse, C. Qin, K. J. Clay, D. Bao, C. Li, J. T. Starr, C. Garcia-Irizarry, N. Sach, H. S. White, M. Neurock, S. D. Minteer, and P. S. Baran
J. Am. Chem. Soc., 2019, 141 (15), pp 6392–6402
Voltammetric Determination of the Stochastic Formation Rate and Geometry of Individual H2, N2, and O2 Bubble Nuclei
M. A. Edwards, H. S. White, H. Ren
ACS Nano.2019. 13, 6, 6330-6340
γ
γ-Hemolysin Nanopore Is Sensitive to Guanine-to-Inosine Substitutions in Double-Stranded DNA at the Single-Molecule Level
Cherie S. Tan, Aaron M. Fleming , Hang Ren , Cynthia J. Burrows, and Henry S. White
J. Am. Chem. Soc., 2018, 140 (43), pp 14224–14234.
Nanoscale electrochemical kinetics & dynamics: the challenges and opportunities of single-entity measurements
Martin Edwards, Donald Robinson, Hang Ren, Cameron Cheyne, Cherie Tan, and Henry S. White.
Faraday Discuss., 2018, 210, 9-28.
Effects of Instrumental Filters on Electrochemical Measurement of Single‐Nanoparticle Collision Dynamics
Donald Robinson, Martin A. Edwards, Hang Ren, and Henry S. White
ChemElectroChem,2018, 5, 3059.
The Nucleation Rate of Single O2 Nanobubbles at Pt Nanoelectrodes
Álvaro Moreno Soto, Sean R. German, Hang Ren, Devaraj van der Meer, Detlef Lohse, Martin A. Edwards, and Henry S. White
Langmuir, 2018, 34 (25), pp 7309–7318.
Critical Nuclei Size, Rate, and Activation Energy of H2 Gas Nucleation
Sean R. German, Martin A. Edwards, Hang Ren, and Henry S. White
J. Am. Chem. Soc., 2018, 140 (11), pp 4047–4053.
Single-Molecule Titration in a Protein Nanoreactor Reveals the Protonation/Deprotonation Mechanism of a C:C Mismatch in DNA
Hang Ren, Cameron G. Cheyne, Aaron M. Fleming, Cythia J. Burrows, and Henry S. White
J. Am. Chem. Soc., 2018, 140, 15, 5153-5160.
Nanopore Opening at Flat and Nano-Tip Conical Electrodes during Vesicle Impact Electrochemical Cytometry
Xianchan Li, Lin Ren, Johan Dunevall, Daixin Ye, Henry S. White, Martin A. Edwards, and Andrew G. Ewing
ACS Nano, 2018, 12(3):3010-3019.
Nanopore Analysis of the 5-Guanidinohydantoin to Iminoallantoin Isomerization in Duplex DNA
Tao Zeng, Aaron M. Fleming, Yun Ding, Hang Ren, Henry S. White, Cynthia J. Burrows
J. Org. Chem., 2018, 83 (7), pp 3973–3978.
Single Ag Nanoparticle Collisions within a Dual-Electrode Micro-Gap Cell
Kim McKelvey, Donald A. Robinson, Nicholas J. Vitti, Martin A. Edwards, Henry S. White
Faraday Discuss., 2018, 210, 189-200.
Critical Nuclei Size, Rate, and Activation Energy of H2 Gas Nucleation
Sean R. German, Martin A. Edwards, Hang Ren, Henry S. White
J. Am. Chem. Soc., 2018, 140 (11), pp 4047–4053.
Selective increase in CO2 electroreduction activity at grain-boundary surface terminations
R. G. Mariano, K. McKelvey, H. S. White, M. W. Kanan
Science, 358 (2017) 1187-1192.
Exploring the suitability of different electrode materials for hypochlorite quantification at high concentration in alkaline solutions
R. E.P. Meyler, M. A. Edwards, J. V. Macpherson
Electrochemistry Communications, 86 (2018) 21-25.
Collision Dynamics During the Electrooxidation of Individual Silver Nanoparticles
D. A Robinson, Y. Liu, M. A. Edwards, N. J. Vitti, S. M. Oja, B. Zhang, H. S. White
J. Am. Chem. Soc., (2017) 139, 46, 16923-16931.
Redox Cycling in Nanogap Electrochemical Cells
H. S. White, K. McKelvey
Current Opinion in Electrochemistry, 2017, 7, 48-53.
Three-Dimensional Super-Resolution Imaging of Single Nanoparticles Delivered by Pipettes
Y. Yu, V. Sundaresan, S. Bandyopadhyay, Y. Zhang, M. A. Edwards, K. McKelvey, H. S.
White, K. A. Willets.
ACS Nano, 2017, 11 (10), pp 10529–10538.
Collision and Oxidation of Silver Nanoparticles on a Gold Nanoband Electrode
F. Zhang, M. Edwards, R. Hao, H. S. White, B. Zhang
J. Phys. Chem. C, 2017, 121 (42), pp 23564–23573.
Microscale 2.5D Batteries
K. McKelvey, A. A. Talin, B. Dunn, and H. S. White
Journal of The Electrochemical Society, 2017, 164(12), A2500-2503.
Nanopipettes as a Tool for Single Nanoparticle Electrochemistry
K. McKelvey, S. R. German, Y. Zhang, H. S. White, and M. A. Edwards
Current Opinion in Electrochemistry, 2017, 6(1), 4-9.
Electrochemical Generation of Individual O2 Nanobubbles via H2O2 Oxidation
Featured in Spotlights, a new initiative of The Journal of Physical Chemistry Letters designed to expand awareness for physical chemistry by presenting accessible plain-language summaries of select articles in each issue.
H. Ren, S. R. German, M. A. Edwards, Q. Chen, and H. S. White
Electrochemical Generation of Individual O2 Nanobubbles via H2O2 Oxidation
H. Ren, S. R. German, M. A. Edwards, Q. Chen, and H. S. White
J. Phys. Chem. Lett., 2017, 8, 2450-2454.
Interrogation of Base Pairing of the Spiroiminodihydantoin Diastereomers Using the α-Hemolysin Latch
Tao Zeng, Aaron M. Fleming, Yun Ding, Henry S. White, and Cynthia J. Burrows
Biochemistry, 2017, 56 (11), 1596–1603.
Dynamics of a DNA Mismatch Site Held in Confinement Discriminate Epigenetic Modifications of Cytosine
Robert P. Johnson, Aaron M. Fleming, Rukshan T. Perera, Cynthia J. Burrows, and Henry
S. White
J. Am. Chem. Soc., 2017, 139 (7), 2750–2756.
The dynamic steady state of an electrochemically generated nanobubble
Yuwen Liu, Martin A. Edwards, Sean R. German, Qianjin Chen, and Henry S. White
Langmuir, 2017, 33 (8), 1845–1853.
Observation of Multipeak Collision Behavior during the Electro-Oxidation of Single Ag Nanoparticles
Stephen M Oja, Donald A. Robinson, Nicholas J. Vitti, Martin A. Edwards, Yuwen Liu,
Henry S. White, and Bo Zhang
J. Am. Chem. Soc., 2017, 139 (2), 708–718.
Kinetics of T3-DNA Ligase-Catalyzed Phosphodiester Bond Formation Measured Using the α-Hemolysin Nanopore
Cherie S. Tan, Jan Riedl, Aaron M. Fleming, Cynthia J. Burrows, and Henry S. White
ACS Nano, 2016, 10 (12), 11127–11135.
Fabrication, Testing, and Simulation of All-Solid-State Three Dimensional Li-Ion Batteries
A. Alec Talin, Dmitry Ruzmetov, Andrei Kolmakov, Kim McKelvey, Nicholas Ware, Farid
El Gabaly, Bruce S. Dunn, and Henry S. White
ACS Appl. Mater. Interfaces, 2016, 8 (47), 32385–32391.
Voltage-Rectified Current and Fluid Flow in Conical Nanopores
Wen-Jie Lan, Martin A. Edwards, Long Luo, Rukshan T. Perera, Xiaojian Wu, Charles
R. Martin, and Henry S. White
Acc. Chem. Res., 2016, 49 (11), 2605–2613.
Laplace Pressure of Individual H2 Nanobubbles from Pressure–Addition Electrochemistry
Sean R. German, Martin A. Edwards, Qianjin Chen, and Henry S. White
Nano. Lett., 2016, 16 (10), 6691–6694.
Resistive Pulse Delivery of Single Nanoparticles to Electrochemical Interfaces
Kim McKelvey, Martin A. Edwards, and Henry S. White
J. Phys. Chem. Lett., 2016, 7, 3920–3924.
Redox Cycling in Nanogap Electrochemical Cells. The Role of Electrostatics in Determining
the Cell Response
Qianjin Chen, Kim McKelvey, Martin A. Edwards, and Henry S. White
J. Phys. Chem. C, 2016, 120 (31), 17251–17260.