Development of in situ electrochemical small-angle neutron scattering (eSANS) for simultaneous structure and redox characterization of nanoparticles

Vivek M. Prabhu; Vytas Reipa; Adam J. Rondinone; Eric Formo; Peter V. Bonnesen

doi:10.1149/07202.0179ecst

Development of in situ electrochemical small-angle neutron scattering (eSANS) for simultaneous structure and redox characterization of nanoparticles

Vivek M. Prabhu, Vytas Reipa, Adam J. Rondinone, Eric Formo, Peter V. Bonnesen

Macromolecular Nanomaterials

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

An in situ electrochemical small-angle neutron scattering (eSANS) method was developed to measure simultaneously the redox properties and size, shape and interactions of solution-dispersed nanomaterials. By combining multi-step potentials and chronocoulometry readout with SANS, the structure and redox properties of engineered nanomaterials are followed in one experiment. Specifically, ZnO nanoparticles were examined as dilute dispersions in pH buffered deuterium oxide solutions under negative electrode potentials. The ZnO disk-shaped nanoparticles undergo an irreversible size transformation upon reduction at the vitreous carbon electrode. The decrease in average nanoparticle size near a current maximum shows the reduction reaction from ZnO to Zn occurs. The eSANS method provides nanometer scale sensitivity to nanoparticle size and shape changes due to an electrochemical reaction that is crucial to understand in energy, healthcare, and other applications.

Original language	English
Title of host publication	Dielectrics for Nanosystems 7
Subtitle of host publication	Materials Science, Processing, Reliability, and Manufacturing
Editors	D. Misra, D. Bauza, Z. Chen, K. B. Sundaram, Y. S. Obeng, T. Chikyow, H. Iwai
Publisher	Electrochemical Society Inc.
Pages	179-188
Number of pages	10
Edition	2
ISBN (Electronic)	9781607687122
DOIs	https://doi.org/10.1149/07202.0179ecst
State	Published - 2016
Event	Symposium on Dielectrics for Nanosystems 7: Materials Science, Processing, Reliability, and Manufacturing - 229th ECS Meeting - San Diego, United States Duration: May 29 2016 → Jun 2 2016

Publication series

Name	ECS Transactions
Number	2
Volume	72
ISSN (Print)	1938-6737
ISSN (Electronic)	1938-5862

Conference

Conference	Symposium on Dielectrics for Nanosystems 7: Materials Science, Processing, Reliability, and Manufacturing - 229th ECS Meeting
Country/Territory	United States
City	San Diego
Period	05/29/16 → 06/2/16

Bibliographical note

Publisher Copyright:
©The Electrochemical Society.

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Prabhu, V. M., Reipa, V., Rondinone, A. J., Formo, E., & Bonnesen, P. V. (2016). Development of in situ electrochemical small-angle neutron scattering (eSANS) for simultaneous structure and redox characterization of nanoparticles. In D. Misra, D. Bauza, Z. Chen, K. B. Sundaram, Y. S. Obeng, T. Chikyow, & H. Iwai (Eds.), Dielectrics for Nanosystems 7: Materials Science, Processing, Reliability, and Manufacturing (2 ed., pp. 179-188). (ECS Transactions; Vol. 72, No. 2). Electrochemical Society Inc.. https://doi.org/10.1149/07202.0179ecst

Prabhu, Vivek M. ; Reipa, Vytas ; Rondinone, Adam J. et al. / Development of in situ electrochemical small-angle neutron scattering (eSANS) for simultaneous structure and redox characterization of nanoparticles. Dielectrics for Nanosystems 7: Materials Science, Processing, Reliability, and Manufacturing. editor / D. Misra ; D. Bauza ; Z. Chen ; K. B. Sundaram ; Y. S. Obeng ; T. Chikyow ; H. Iwai. 2. ed. Electrochemical Society Inc., 2016. pp. 179-188 (ECS Transactions; 2).

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title = "Development of in situ electrochemical small-angle neutron scattering (eSANS) for simultaneous structure and redox characterization of nanoparticles",

abstract = "An in situ electrochemical small-angle neutron scattering (eSANS) method was developed to measure simultaneously the redox properties and size, shape and interactions of solution-dispersed nanomaterials. By combining multi-step potentials and chronocoulometry readout with SANS, the structure and redox properties of engineered nanomaterials are followed in one experiment. Specifically, ZnO nanoparticles were examined as dilute dispersions in pH buffered deuterium oxide solutions under negative electrode potentials. The ZnO disk-shaped nanoparticles undergo an irreversible size transformation upon reduction at the vitreous carbon electrode. The decrease in average nanoparticle size near a current maximum shows the reduction reaction from ZnO to Zn occurs. The eSANS method provides nanometer scale sensitivity to nanoparticle size and shape changes due to an electrochemical reaction that is crucial to understand in energy, healthcare, and other applications.",

author = "Prabhu, {Vivek M.} and Vytas Reipa and Rondinone, {Adam J.} and Eric Formo and Bonnesen, {Peter V.}",

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doi = "10.1149/07202.0179ecst",

language = "English",

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Prabhu, VM, Reipa, V, Rondinone, AJ, Formo, E & Bonnesen, PV 2016, Development of in situ electrochemical small-angle neutron scattering (eSANS) for simultaneous structure and redox characterization of nanoparticles. in D Misra, D Bauza, Z Chen, KB Sundaram, YS Obeng, T Chikyow & H Iwai (eds), Dielectrics for Nanosystems 7: Materials Science, Processing, Reliability, and Manufacturing. 2 edn, ECS Transactions, no. 2, vol. 72, Electrochemical Society Inc., pp. 179-188, Symposium on Dielectrics for Nanosystems 7: Materials Science, Processing, Reliability, and Manufacturing - 229th ECS Meeting, San Diego, United States, 05/29/16. https://doi.org/10.1149/07202.0179ecst

Development of in situ electrochemical small-angle neutron scattering (eSANS) for simultaneous structure and redox characterization of nanoparticles. / Prabhu, Vivek M.; Reipa, Vytas; Rondinone, Adam J. et al.
Dielectrics for Nanosystems 7: Materials Science, Processing, Reliability, and Manufacturing. ed. / D. Misra; D. Bauza; Z. Chen; K. B. Sundaram; Y. S. Obeng; T. Chikyow; H. Iwai. 2. ed. Electrochemical Society Inc., 2016. p. 179-188 (ECS Transactions; Vol. 72, No. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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T1 - Development of in situ electrochemical small-angle neutron scattering (eSANS) for simultaneous structure and redox characterization of nanoparticles

AU - Prabhu, Vivek M.

AU - Reipa, Vytas

AU - Rondinone, Adam J.

AU - Formo, Eric

AU - Bonnesen, Peter V.

N1 - Publisher Copyright: ©The Electrochemical Society.

PY - 2016

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N2 - An in situ electrochemical small-angle neutron scattering (eSANS) method was developed to measure simultaneously the redox properties and size, shape and interactions of solution-dispersed nanomaterials. By combining multi-step potentials and chronocoulometry readout with SANS, the structure and redox properties of engineered nanomaterials are followed in one experiment. Specifically, ZnO nanoparticles were examined as dilute dispersions in pH buffered deuterium oxide solutions under negative electrode potentials. The ZnO disk-shaped nanoparticles undergo an irreversible size transformation upon reduction at the vitreous carbon electrode. The decrease in average nanoparticle size near a current maximum shows the reduction reaction from ZnO to Zn occurs. The eSANS method provides nanometer scale sensitivity to nanoparticle size and shape changes due to an electrochemical reaction that is crucial to understand in energy, healthcare, and other applications.

AB - An in situ electrochemical small-angle neutron scattering (eSANS) method was developed to measure simultaneously the redox properties and size, shape and interactions of solution-dispersed nanomaterials. By combining multi-step potentials and chronocoulometry readout with SANS, the structure and redox properties of engineered nanomaterials are followed in one experiment. Specifically, ZnO nanoparticles were examined as dilute dispersions in pH buffered deuterium oxide solutions under negative electrode potentials. The ZnO disk-shaped nanoparticles undergo an irreversible size transformation upon reduction at the vitreous carbon electrode. The decrease in average nanoparticle size near a current maximum shows the reduction reaction from ZnO to Zn occurs. The eSANS method provides nanometer scale sensitivity to nanoparticle size and shape changes due to an electrochemical reaction that is crucial to understand in energy, healthcare, and other applications.

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ER -

Prabhu VM, Reipa V, Rondinone AJ, Formo E, Bonnesen PV. Development of in situ electrochemical small-angle neutron scattering (eSANS) for simultaneous structure and redox characterization of nanoparticles. In Misra D, Bauza D, Chen Z, Sundaram KB, Obeng YS, Chikyow T, Iwai H, editors, Dielectrics for Nanosystems 7: Materials Science, Processing, Reliability, and Manufacturing. 2 ed. Electrochemical Society Inc. 2016. p. 179-188. (ECS Transactions; 2). doi: 10.1149/07202.0179ecst

Development of in situ electrochemical small-angle neutron scattering (eSANS) for simultaneous structure and redox characterization of nanoparticles

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