4.3 Preparation of 1T/2H mixed phase MoSe2directly grown on a carbon paper.
To synthesize MoSe2 directly onto a carbon paper
(HCP020N; Shanghai Hesen Electric Co. Ltd), a mixed solution containing
precursors and a 2×4 cm2 carbon paper was transferred
to a 100 mL stainless-steel autoclave. The synthesis duration was 36 h,
and the solution was rapidly cooled to 25 °C within 15 min. In-situ
MoSe2 with varying synthesis times denoted
MoSe2-I-Y (Y = 36), where I represent ‘in-situ’ and Y
represent synthesis time. The loading amount onto the carbon paper was
about ~5 mg. For the Pt loading on the
MoSe2-I-36h-Pt sample was 0.15 wt%
(~7.5ug/cm2).