Tricobalt tetraoxide (Co3O4) is a potential catalyst for low-temperature oxidation of carbon monoxide (required in automotive emission control) but although it is active even at subzero temperatures, it is highly sensitive to moisture.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/low-temperature-oxidation-co-catalysed-co3o4-nanorods
[2] http://admin.indiaenvironmentportal.org.in/category/author/xiaowei-xie
[3] http://admin.indiaenvironmentportal.org.in/category/author/yong-li
[4] http://admin.indiaenvironmentportal.org.in/category/author/zhi-quan-liu
[5] http://admin.indiaenvironmentportal.org.in/category/author/masatake-haruta-et-al
[6] http://admin.indiaenvironmentportal.org.in/category/journal/nature
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution-control
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/atmosphere
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/research
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/china
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/japan