08.07.2014/2/XNUMX - Kevin Bullis The start-up Infinium wants to make COXNUMX-intensive processes in metal production more environmentally friendly. In a laboratory building across from a yoga studio in an office park in Natick, near Boston, Adam Powell holds up a shiny white ceramic tube. This is the key to manufacturing much-used metals much cheaper and, above all, more ecologically, he says. Powell [...]