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| 1 | Magnetically recyclable Sm2Co17/Cu catalyst to chemoselectively reduce the 3-nitrostyrene into 3-vinylaniline under room temperature显示文摘Using non-noble metal catalysts to chemoselectively reduce the 3-nitrostyrene into 3-vinylaniline is extremely attractive due to the importantapplications of aromatic amines.However,the separation and recycle of catalytic particles to sustainably catalyze are still challenging on accountof their small size.In this communication,we report a novel magnetically recyclable catalyst of Sm2Co17/Cu to chemoselectively reduce3-nitrostyrene into 3-vinylaniline by activating ammonia borane(AB)to yield hydrogen.The Sm2Co17/Cu,composited of 180 nm Sm2Co17nano magnet and 10 nm Cu catalyst nano particles,shows a high conversi on(98%)and a high selectivity(99%)for 3-nitrostyrene under ultrasonic concussion.More importantly,they are easily collected by self-separation method without any magnetic field.As a consequenee,the excellent recyclable feature is acquired even underwent 10 cycles.Our approach provides a green strategy to synthesize magneticallyrecyclable catalysts. | Zhenhui Ma Hu Liu Ming Yue | 2019 | Nano Research2019，12，12： | 3 |
| 2 | Microreactor platform for continuous synthesis of electronic doped quantum dots显示文摘Electronic doped quantum dots(Ed-QDs),by heterovalent cations doping,have held promise for future device concepts in optoelectronic and spin-based technologies due to their broadband Stokes-shifted luminescence,enhanced electrical transport and tailored magnetic behavior.Considering their scale-up requirement and the low yielding of several current colloidal synthesis methods,a stable and efficient bulk synthesis strategy must be developed.Microreactors have long been recognized as an effective platform for producing nanomaterials and fabricating large-scale structures.Here,we chose microreactor platform for continuous synthesis of Ed-QDs in the air at low temperatures.By original reverse cation exchange reaction mechanism together with varying the kinetic conditions of microreactor platform,such as liquid flow rate,the Ag doped CdS(CdS:Ag)Ed-QDs with higher yield have been synthesized successfully due to the continuous synthesis advantages with a high degree of size selectivity.Enabled by microreactor engineering simulation,this research not only provides a new synthetic method towards scale-up production but also enables to improve chemical mass production of similar functional QDs for optical devices,bioimaging and innovative information processing applications. | Yuxi Li Yanbin Li Xinyuan Li Tailei Hou Chen Qiao Yunpeng Tai Xiaole Gu Di Zhao Le Sang Jiatao Zhang | 2022 | Nano Research2022，15，10： | 0 |
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