Reduced graphene oxide@TiO2 nanorod@reduced graphene oxide hybrid nanostructures for photoelectrochemical hydrogen production
Reduced graphene oxide@TiO2 nanorod@reduced graphene oxide hybrid nanostructures for photoelectrochemical hydrogen production
复制标题
用于光电化学制氢的还原氧化石墨烯@TiO2纳米棒@还原氧化石墨烯杂化纳米结构
DOI：
10.1049/mnl.2016.0747
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发表时间：
2017-07-01
影响因子：
1.3
通讯作者：
Liu, Yutang
中科院分区：
文献类型：
--
作者：
Wang, Longlu;Li, Yue;Liu, Yutang
二氧化钛纳米棒(NRS)阵列和还原石墨烯氧化物(RGO)之间的优化几何构型是其在光电化学制氢体系催化中应用的关键。通过集成多种活性材料而精心设计的层次化纳米结构可以增强光捕获效率，增强光载流子的产生，并提供快速的电子传输和高效的电荷收集。本文在二氧化钛纳米棒(TiO2NRS)阵列的上表面和下表面制备了石墨烯薄膜。更重要的是，RGO@TiO2Nr@RGO杂化纳米结构的产氢速率高达800mol/hμ−1m2(辐射强度：160mW/cm2)，是裸TiO2Nr的2.5倍以上。
The optimised geometrical configuration between TiO2 nanorods (NRs) arrays and reduced graphene oxide (RGO) is essential for their application in catalysis of photoelectrochemical hydrogen production system. The scrupulous design of hierarchical nanoarchitectures by integration of multiple active materials can reinforce the light harvesting efficiency, enhance photocarrier generation and provide fast electron transport and efficient charge collection. Graphene film formed on the top surface and at the bottom of titanium dioxide nanorod (TiO2 NRs) arrays were scrupulously fabricated in this paper. More importantly, the hydrogen production rate of RGO@TiO2NR@RGO hybrid nanostructures was up to 800 μmol/h−1m2 (radiation intensity: 160 mW/cm2) which is over 2.5 times compared with bare TiO2NR.