光催化
纳米技术
纳米材料基催化剂
纳米结构
材料科学
催化作用
蛋黄
制氢
可见光谱
壳体(结构)
纳米颗粒
化学
光电子学
有机化学
复合材料
食品科学
作者
Jun Hu,Ru-Fang Zhao,Haitao Li,Zhaoyi Xu,Han Dai,Hua Gao,Hao Yu,Ziyao Wang,Yang Wang,Yanping Liu,Jie Han
标识
DOI:10.1016/j.apcatb.2021.120869
摘要
Yolk-shell nanohybrids have garnered increasing interests in many applications, such as in catalysis, energy, and molecular sensing. However, their intrinsic architectural limitations have led to insufficient synergistic effects and instability which are unfavorable for nanocatalysis. Designing a unique yolk-in-shell nanostructure where the "yolk" is embedded in the "shell" can overcome this challenge to boost nanocatalysis. Herein, an unprecedented [email protected]2 yolk-in-shell nanocatalyst has been developed to dramatically improve the visible light photocatalysis. The as-designed [email protected]2 nanohybrid displays an efficient hydrogen-production (95.6 mmol h-1 g-1, Au: 0.04 wt%), 3- and 14-times better than conventional [email protected]2 yolk-shell nanostructure and pure TiO2 hollow nanosphere, respectively. Our unique design also notably achieves high selectivity (~100%) towards CO production (0.75 mmol h-1 g-1) under visible light irradiation. This unique yolk-in-shell nanoarchitecture promises enormous opportunities for the design of next-generation hybrid nanocatalysts with enhanced catalytic performances.
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