Aaron C. Johnston-Peck

Works (12)

Updated: July 20th, 2023 21:15

2017 article

Size and Composition Control of CoNi Nanoparticles and Their Conversion into Phosphides

Marusak, K. E., Johnston-Peck, A. C., Wu, W.-C., Anderson, B. D., & Tracy, J. B. (2017, March 31). Chemistry of Materials, Vol. 29, pp. 2739–2747.

By: K. Marusak n, A. Johnston-Peck n, W. Wu n, B. Anderson n & J. Tracy n 

Contributors: K. Marusak n, A. Johnston-Peck n, W. Wu n, B. Anderson n & J. Tracy n 

topics (OpenAlex): Catalysis and Hydrodesulfurization Studies; Nanomaterials for catalytic reactions; Electrocatalysts for Energy Conversion
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2012 article

Nanostructural transformations during the reduction of hollow and porous nickel oxide nanoparticles

Medford, J. A., Johnston-Peck, A. C., & Tracy, J. B. (2012, November 20). Nanoscale, Vol. 5, pp. 155–159.

By: J. Medford n, A. Johnston-Peck n & J. Tracy n 

Contributors: J. Medford n, A. Johnston-Peck n & J. Tracy n 

MeSH headings : Hydrogen / chemistry; Macromolecular Substances / chemistry; Materials Testing; Metal Nanoparticles / chemistry; Metal Nanoparticles / ultrastructure; Molecular Conformation; Nickel / chemistry; Oxidation-Reduction; Porosity; Surface Properties
topics (OpenAlex): Copper-based nanomaterials and applications; ZnO doping and properties; Transition Metal Oxide Nanomaterials
TL;DR: Transmission electron microscopy reveals that the location and number of reduction sites strongly depend on the nanoparticle size and structure. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2012 article

Phase transformation of alumina-coated FePt nanoparticles

Johnston-Peck, A. C., & Tracy, J. B. (2012, March 6). Journal of Applied Physics, Vol. 111.

By: A. Johnston-Peck n & J. Tracy n 

Contributors: A. Johnston-Peck n & J. Tracy n 

topics (OpenAlex): Magnetic properties of thin films; Advanced Materials Characterization Techniques; Semiconductor materials and interfaces
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2011 article

Effects of Ligand Monolayers on Catalytic Nickel Nanoparticles for Synthesizing Vertically Aligned Carbon Nanofibers

Sarac, M. F., Wilson, R. M., Johnston-Peck, A. C., Wang, J., Pearce, R., Klein, K. L., … Tracy, J. B. (2011, March 16). ACS Applied Materials & Interfaces, Vol. 3, pp. 936–940.

By: M. Sarac  n, R. Wilson n, A. Johnston-Peck n, J. Wang n, R. Pearce n, K. Klein *, A. Melechko n, J. Tracy n 

Contributors: M. Sarac  n, R. Wilson n, A. Johnston-Peck n, J. Wang n, R. Pearce n, K. Klein *, A. Melechko n, J. Tracy n 

author keywords: carbon nanofibers; nanoparticles; nickel; chemical vapor deposition; catalyst; ligand
topics (OpenAlex): Graphene research and applications; Advancements in Battery Materials; Carbon Nanotubes in Composites
TL;DR: Vertically aligned carbon nanofibers were synthesized using ligand-stabilized Ni nanoparticle catalysts and plasma-enhanced chemical vapor deposition to enable facile preparation of VACNF arrays with monodisperse diameters below the size limit of thin film lithography. (via Semantic Scholar)
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2011 article

Formation and Grain Analysis of Spin-Cast Magnetic Nanoparticle Monolayers

Johnston-Peck, A. C., Wang, J., & Tracy, J. B. (2011, March 24). Langmuir, Vol. 27, pp. 5040–5046.

By: A. Johnston-Peck n, J. Wang n & J. Tracy n 

Contributors: A. Johnston-Peck n, J. Wang n & J. Tracy n 

topics (OpenAlex): Magnetic properties of thin films; Characterization and Applications of Magnetic Nanoparticles; nanoparticles nucleation surface interactions
TL;DR: Computer-aided analysis of the arrays elucidates their grain structures, including identification of the grain boundaries and defects and measurements of thegrain orientations and translational correlation lengths. (via Semantic Scholar)
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2011 article

Imaging three-dimensional rotational diffusion of plasmon resonant gold nanorods using polarization-sensitive optical coherence tomography

Chhetri, R. K., Kozek, K. A., Johnston-Peck, A. C., Tracy, J. B., & Oldenburg, A. L. (2011, April 12). Physical Review E, Vol. 83.

By: R. Chhetri *, K. Kozek  n, A. Johnston-Peck n, J. Tracy n  & A. Oldenburg *

Contributors: R. Chhetri *, K. Kozek  n, A. Johnston-Peck n, J. Tracy n  & A. Oldenburg *

MeSH headings : Diffusion; Gold / chemistry; Imaging, Three-Dimensional / methods; Nanotubes / chemistry; Nephelometry and Turbidimetry / methods; Refractometry / methods; Surface Plasmon Resonance / methods; Tomography, Optical Coherence / methods
topics (OpenAlex): Optical Coherence Tomography Applications; Photoacoustic and Ultrasonic Imaging; Characterization and Applications of Magnetic Nanoparticles
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2011 article

Laterally patterned magnetic nanoparticles

Jie, Y., Niskala, J. R., Johnston-Peck, A. C., Krommenhoek, P. J., Tracy, J. B., Fan, H., & You, W. (2011, December 6). Journal of Materials Chemistry, Vol. 22, pp. 1962–1968.

By: Y. Jie*, J. Niskala*, A. Johnston-Peck n, P. Krommenhoek n, J. Tracy n , H. Fan *, W. You *

Contributors: Y. Jie*, J. Niskala*, A. Johnston-Peck n, P. Krommenhoek n, J. Tracy n , H. Fan *, W. You *

topics (OpenAlex): Molecular Junctions and Nanostructures; Nanofabrication and Lithography Techniques; Gold and Silver Nanoparticles Synthesis and Applications
TL;DR: This generalized approach is anticipated to be adaptable to many other kinds of nanoparticlesvia judicious selection of the substrates, surfactant ligands (on the nanoparticle), and/or surface-bound monolayers. (via Semantic Scholar)
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2011 article

Sinter-free phase conversion and scanning transmission electron microscopy of FePt nanoparticle monolayers

Johnston-Peck, A. C., Scarel, G., Wang, J., Parsons, G. N., & Tracy, J. B. (2011, January 1). Nanoscale, Vol. 3, pp. 4142–4149.

By: A. Johnston-Peck n, G. Scarel n, J. Wang n, G. Parsons n  & J. Tracy n 

Contributors: A. Johnston-Peck n, G. Scarel n, J. Wang n, G. Parsons n  & J. Tracy n 

MeSH headings : Aluminum Oxide / chemistry; Iron / chemistry; Magnetics; Metal Nanoparticles / chemistry; Metal Nanoparticles / ultrastructure; Microscopy, Electron, Scanning Transmission; Particle Size; Platinum / chemistry; Temperature
topics (OpenAlex): Magnetic properties of thin films; Semiconductor materials and interfaces; Semiconductor materials and devices
TL;DR: Electron and X-ray diffraction in conjunction with high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) show that as-synthesized A1 FePt NPs convert into L1(0) and L1 (2) phase NPs through annealing, highlighting the need for improved control over the compositional uniformity of FePT NPs for their use in bit-patterned magnetic recording. (via Semantic Scholar)
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2010 article

Size-Dependent Nanoscale Kirkendall Effect During the Oxidation of Nickel Nanoparticles

Railsback, J. G., Johnston-Peck, A. C., Wang, J., & Tracy, J. B. (2010, April 2). ACS Nano, Vol. 4, pp. 1913–1920.

By: J. Railsback n, A. Johnston-Peck n, J. Wang n & J. Tracy n 

Contributors: J. Railsback n, A. Johnston Peck n, J. Wang n & J. Tracy n 

author keywords: Kirkendall effect; nanoparticle; nickel; nickel oxide; hollow nanoparticles; diffusion
topics (OpenAlex): Copper-based nanomaterials and applications; Nanomaterials for catalytic reactions; Electrocatalysts for Energy Conversion
TL;DR: By choosing an intermediate oxidation temperature and varying the reaction time, partially oxidized Ni(core)/NiO(shell) NPs can be synthesized with good control and have distinct nanostructures. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2010 article

Synthesis of Au(Core)/Ag(Shell) Nanoparticles and their Conversion to AuAg Alloy Nanoparticles

Shore, M. S., Wang, J., Johnston‐Peck, A. C., Oldenburg, A. L., & Tracy, J. B. (2010, December 13). Small, Vol. 7, pp. 230–234.

By: M. Shore n, J. Wang n, A. Johnston‐Peck n, A. Oldenburg * & J. Tracy n 

Contributors: M. Shore n, J. Wang n, A. Johnston-Peck n, A. Oldenburg * & J. Tracy n 

MeSH headings : Alloys / chemistry; Gold / chemistry; Metal Nanoparticles / chemistry; Silver / chemistry
topics (OpenAlex): Gold and Silver Nanoparticles Synthesis and Applications; Nanomaterials for catalytic reactions; Copper-based nanomaterials and applications
TL;DR: A facile, stoichiometrically controlled synthesis of Au(core)/Ag(shell) and AuAg alloy NPs through digestive ripening is reported, which is a potentially general method for synthesizing Alloy NPs. (via Semantic Scholar)
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2009 article

Nickel Phosphide Nanoparticles with Hollow, Solid, and Amorphous Structures

Wang, J., Johnston-Peck, A. C., & Tracy, J. B. (2009, September 16). Chemistry of Materials, Vol. 21, pp. 4462–4467.

By: J. Wang n, A. Johnston-Peck n & J. Tracy n 

Contributors: J. Wang n, A. Johnston Peck n & J. Tracy n 

topics (OpenAlex): Catalysis and Hydrodesulfurization Studies; Nanomaterials for catalytic reactions; Electrocatalysts for Energy Conversion
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2009 article

Synthesis and Structural and Magnetic Characterization of Ni(Core)/NiO(Shell) Nanoparticles

Johnston-Peck, A. C., Wang, J., & Tracy, J. B. (2009, April 10). ACS Nano, Vol. 3, pp. 1077–1084.

By: A. Johnston-Peck n, J. Wang n & J. Tracy n 

Contributors: A. Johnston Peck n, J. Wang n & J. Tracy n 

author keywords: magnetic nanoparticles; exchange bias; nickel; nickel oxide; superparamagnetism; magnetic anisotropy
MeSH headings : Crystallization / methods; Macromolecular Substances / chemistry; Magnetics; Materials Testing; Molecular Conformation; Nanostructures / chemistry; Nanostructures / ultrastructure; Nanotechnology / methods; Nickel / chemistry; Particle Size; Surface Properties
topics (OpenAlex): Magnetic properties of thin films; ZnO doping and properties; Transition Metal Oxide Nanomaterials
TL;DR: A size series of ligand-stabilized Ni nanoparticles (NPs) with diameters between 8-24 nm was prepared by solution chemistry, followed by solution-phase oxidation with atmospheric oxygen at 200 degrees C to form Ni(core)/NiO(shell) NPs with shell thicknesses of 2-3 nm. (via Semantic Scholar)
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

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