@article{oai:oist.repo.nii.ac.jp:00000822, author = {Steinhauer, Stephan and Vernieres, Jerome and Krainer, Johanna and Köck, Anton and Grammatikopoulos, Panagiotis and Sowwan, Mukhles}, issue = {22}, journal = {Nanoscale}, month = {Mar}, note = {In situ transmission electron microscopy provides exciting opportunities to address fundamental questions and technological aspects related to functional nanomaterials, including the structure-property relationships of miniaturized electronic devices. Herein, we report the in situ chemoresistive sensing in the environmental transmission electron microscope (TEM) with a single SnO2 nanowire device, studying the impact of surface functionalization with heterogeneous nanocatalysts. By detecting toxic carbon monoxide (CO) gas at ppm-level concentrations inside the microscope column, the sensing properties of a single SnO2 nanowire were characterized before and after decoration with hybrid Fe-Pd nanocubes. The structural changes of the supported nanoparticles induced by sensor operation were revealed, enabling direct correlation with CO sensing properties. Our novel approach is applicable for a broad range of functional nanomaterials and paves the way for future studies on the relationship between chemoresistive properties and nanoscale morphology.}, pages = {7380--7384}, title = {In situ chemoresistive sensing in the environmental TEM: probing functional devices and their nanoscale morphology}, volume = {9}, year = {2017} }