Plasmonic Hydrogen Sensing with Nanostructured Metal Hydridese
Journal article, 2014

In this review, we discuss the evolution of localized surface plasmon resonance and surface plasmon resonance hydrogen sensors based on nanostructured metal hydrides, which has accelerated significantly during the past 5 years. We put particular focus on how, conceptually, plasmonic resonances can be used to study metalhydrogen interactions at the nanoscale, both at the ensemble and at the single-nanoparticle level. Such efforts are motivated by a fundamental interest in understanding the role of nanosizing on metal hydride formation processes in the quest to develop efficient solid-state hydrogen storage materials with fast response times, reasonable thermodynamics, and acceptable long-term stability. Therefore, a brief introduction to the thermodynamics of metal hydride formation is also given. However, plasmonic hydrogen sensors not only are of academic interest as research tool in materials science but also are predicted to find more practical use as all-optical gas detectors in industrial and medical applications, as well as in a future hydrogen economy, where hydrogen is used as a carbon free energy carrier. Therefore, the wide range of different plasmonic hydrogen sensor designs already available is reviewed together with theoretical efforts to understand their fundamentals and optimize their performance in terms of sensitivity. In this context, we also highlight important challenges to be addressed in the future to take plasmonic hydrogen sensors from the laboratory to real applications in devices, including poisoning/deactivation of the active materials, sensor lifetime, and cross-sensitivity toward other gas species.

sensors

hydrogen

surface plasmon resonance

sensing

metal hydride

nanowires

nanoparticles

palladium

localized surface plasmon resonance

Author

Carl Wadell

Chalmers, Applied Physics, Chemical Physics

Svetlana Syrenova

Chalmers, Applied Physics, Chemical Physics

Christoph Langhammer

Chalmers, Applied Physics, Chemical Physics

ACS Nano

1936-0851 (ISSN) 1936-086X (eISSN)

Vol. 8 12 11925-11940

Subject Categories

Materials Engineering

Chemical Sciences

DOI

10.1021/nn505804f

More information

Latest update

10/15/2018