PT Journal AU Methikkalam, RRJ Ghosh, J Bhuin, RG Bag, S Ragupathy, G Pradeep, T TI Iron assisted formation of CO$_2$ over condensed CO and its relevance to interstellar chemistry SO Physical chemistry, chemical physics PY 2020 BP 8491 EP 8498 VL 22 IS 16 DI 10.1039/c9cp06983f LA english ER