Catalysis Communications ( IF 3.4 ) Pub Date : 2018-10-02 , DOI: 10.1016/j.catcom.2018.09.016 Zhenhua Liu , Ying Dai , Zhaoke Zheng , Baibiao Huang
Covalently-terminated germanane GeH and GeCH3 for hydrogen generation from catalytic hydrolysis of ammonia borane (NH3BH3) complex under visible light (λ ≥ 420 nm) has been achieved. Compared with H-terminated germanane GeH, the methyl-terminated germanane GeCH3 exhibits superior catalytic activity and hydrogen selectivity towards hydrolysis of NH3BH3, with the turnover frequency (TOF) value of 18.16 molH2•min−1•molcat−1, which is nearly 2.4 times higher than that of GeH. In addition, we have demonstrated their good reusability and high stability through cyclic experiments. A proposed mechanism for the H2 evolution from hydrolysis of NH3BH3 over GeCH3 sample is proposed.
中文翻译:
共价端接的锗烷GeH和GeCH 3用于可见光照射下氨硼烷的催化水解产生氢气
已实现了在可见光(λ≥420 nm)下由氨硼烷(NH 3 BH 3)配合物催化水解产生氢的共价端接的锗烷GeH和GeCH 3。用H封端的germanane GeH的,甲基封端的germanane GeCH相比3个表现出优异的催化活性和选择性氢朝NH水解3 BH 3,与所述转换频率(TOF)的18.16摩尔值H2 •分钟-1 •摩尔猫- 1个,这是GeH的近2.4倍。此外,我们通过循环实验证明了它们的良好可重用性和高稳定性。提出了由NH 3 BH 3在GeCH 3样品上水解而释放出H 2的机理。