Wet-Chemical Approaches to Porous Nanowires with Linear,
Spiral, and Meshy Topologies
- Publication date
- Publisher
Abstract
We report universal approaches for
porous nanowires (NWs), and
porous NWs with spiral and meshy topologies that have been developed
via anodic aluminum oxide (AAO) confined wet-chemical synthesis. Materials
such as CuO<sub><i>x</i></sub>, Pd, and Cu NWs are taken
as examples for porous NWs and porous NWs with spiral and meshy topologies.
Immediate benefits are demonstrated in hydrogen sensors as examples.
We observed that hydrogen concentrations as low as 0.2% (v/v) were
detected, that critical temperatures of the reverse sensing behavior
as low as 239.9 K were measured and that better baseline-stability
was confirmed compared with those fabricated with pure Pd NWs. Our
approaches are anticipated to work on the synthesis of the porous
NWs of other materials that could be obtained via wet-chemistry with
potential as candidates for the next generation nanodevices (e.g.,
gas sensors) and other applications (e.g., catalysts)