Though her husband hated it — “he wanted a real Christmas tree” — the shiny silver tree would get passed down in the family. Eventually, it made its way to Kabat. “That was kind of what started the ...

International Institute for Carbon-Neutral Energy Research, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan Department of Hydrogen Energy Systems, Kyushu University, 744 Motooka, ...