Constructing urchin‐like TiO <sub>2</sub> integrated NiPt nanoparticles for boosting the decomposition of hydrazine hydrate
Shu-Yu Liu, Wenting Ren, Lei‐Yun Chen, Jing Xie, Chao Wan, Lixin Xu, Shenglai Li, Jia-Pei Wang, Павел С. Постников, Dang‐guo Cheng
Abstract
Abstract Chemical hydrogen storage technology is crucial for the widespread use of hydrogen, with significant research progress being made in hydrazine hydrate (N 2 H 4 ·H 2 O). However, the efficient decomposition of N 2 H 4 ·H 2 O remains a major challenge, hindered by dynamic constraints. To address this, we prepared NiPt nanoparticles deposited onto urchin‐like TiO 2 (u‐TiO 2 ) using the impregnation‐reduction method, resulting in the NiPt/u‐TiO 2 catalyst. Remarkably, the Ni 0.5 Pt 0.5 /u‐TiO 2 catalyst demonstrated 100% H 2 selectivity, ultrahigh catalytic activity and remarkable durability for N 2 H 4 ·H 2 O dehydrogenation, with a turnover frequency (TOF) of 115.8 min −1 , surpassing that of the corresponding NiPt/commercial TiO 2 (c‐TiO 2 ). Characterization and experimental findings suggest that the remarkable activity may originate from the unique urchin‐like structure of the catalyst, along with the synergistic interaction between NiPt metals and the support. This research opens new avenues for designing nanomaterials with morphology advantages for hydrogen evolution reaction.