Metal oxides can be functionalized easily with any matter but why it is not possible to functionalize metal sulfides with materials such as for example their fictionalization with an Aerogel?
There are many reports on chalcogenide "aerogels".. common are MoS2, WS2 but also some papers on GeS2 aerogels (Ex: doi.org/10.1016/j.jnoncrysol.2005.11.035)