@misc{li_electrochemically_tunable_2021, 
author={Li, J.},
title={Electrochemically tunable mechanical behavior of bulk nanoporous gold/polypyrrole},
year={2021},
howpublished = {doctoral thesis: Technische Universität Hamburg},
doi = {https://doi.org/10.15480/882.3657},
abstract = {Second, the actuation strains of NPG/PPy electroactuator under both potential jumps and potential sweeps have been found to be invariant under increasing applied load. The actuation strain of NPG/PPy hybrids comprises of two parts: The free stroke induced by the swelling of PPy which is independent of load and the strain caused by the stiffness variations which is load-dependent. The findings of the modulus behavior mentioned above help to distinguish the strain contributions of these two factors to the total strain. These experiments allow evaluating a contribution of the electrochemically modulated elastic modulus of NPG/PPy to the actuation strain. Depending on the predeformation of the material as well as on the oxidation or reduction state of PPy, this contribution adds an expansion or contraction to the actuation strain. Yet, in the range of the applied loads tested, the actual performance is not affected by the load, demonstrating an enhanced load-bearing efficiency of NPG/PPy electroactuators in contrast to non-coated NPG.},
note = {Online available at: \url{https://doi.org/10.15480/882.3657} (DOI). Li, J.: Electrochemically tunable mechanical behavior of bulk nanoporous gold/polypyrrole. Technische Universität Hamburg, 2021. DOI: 10.15480/882.3657}}