Amorphous NiCu Thin Films Sputtered on TiO2 Nanotube Arrays: A Noble‐Metal Free Photocatalyst for Hydrogen Evolution. - Pinna, Marco; Wei, Angeline Wo Weng; Spanu, Davide; Will, Johannes; Yokosawa, Tadahiro; Spiecker, Erdmann; Recchia, Sandro; Schmuki, Patrik; Altomare, Marco (ChemCatChem, 2022)