posted on 2023-06-15, 20:56authored byWei Cheat Lee, Yuanxing Fang, Rantej Kler, Giacomo E Canciani, Thomas C Draper, Zainab Taha Yassin Al-Abdullah, Sulaiman M Alfadul, Christopher C Perry, Heyong He, Qiao ChenQiao Chen
Here we report on a novel approach for the synthesis of vertically aligned hexagonal ZnO nanotube arrays. Ring-like structures were formed on substrate using the polymer-based seeding solution through the Marangoni mechanism, guiding the growth of ZnO nanotubes with aqueous chemical bath deposition. Photoelectrochemical hydrogen generation by water splitting on a ZnO nanotube anode is about three times as efficient as that on a similar ZnO nanorod anode.