Applying Dynamic Strain on Thin Oxide Films Immobilized on a Pseudoelastic Nickel-Titanium Alloy

Drazenka Svedruzic, Hanyu Zhang, Eric Benson, Kurt Van Allsburg, Elisa Link-Miller

Research output: Contribution to journalArticlepeer-review


Direct alteration of material structure/function through strain is a growing area of research that has allowed for novel properties of materials to emerge. Tuning material structure can be achieved by controlling an external force imposed on materials and inducing stress-strain responses (i.e., applying dynamic strain). Electroactive thin films are typically deposited on shape or volume tunable elastic substrates, where mechanical loading (i.e., compression or tension) can affect film structure and function through imposed strain. Here, we summarize methods for straining n-type doped titanium dioxide (TiO2) films prepared by a thermal treatment of a pseudo-elastic nickel-titanium alloy (Nitinol). The main purpose of the described methods is to study how strain affects electrocatalytic activities of metal oxide, specifically hydrogen evolution and oxygen evolution reactions. The same system can be adapted to study the effect of strain more broadly. Strain engineering can be applied for optimization of a material function, as well as for design of adjustable, multifunctional (photo)electrocatalytic materials under external stress control.

Original languageAmerican English
Article numbere61410
Pages (from-to)1-17
Number of pages17
JournalJournal of Visualized Experiments
StatePublished - 2020

Bibliographical note

Publisher Copyright:
© 2020 JoVE Journal of Visualized Experiments.

NREL Publication Number

  • NREL/JA-2700-76796


  • dynamic strain
  • electrocatalysis
  • nitinol
  • tensile strain
  • thin films
  • titanium dioxide


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