“…The synthesis methods of fluorinated carbon (denoted CFx) can be mainly classified into direct gas fluorination, indirect fluorination [43] during which a hydrocarbon substrate reacts in situ with free radicals of fluorine, plasma-assisted fluorination [12][13][14], controlled fluorination using fluorinating agents (such as terbium tetrafluoride TbF4 and xenon difluoride XeF2) [12,[44][45][46][47], and anhydrous hydrogen fluoride (HF) [48]. Due to its high toxicity, reactivity, and corrosiveness, fluorination using HF is of limited scope [49] and will be disregarded hereafter.…”