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| 1 | Atomic Co/Ni dual sites with N/P-coordination as bifunctional oxygen electrocatalyst for rechargeable zinc-air batteries显示文摘Metal-nitrogen-carbon(M-N-C)single-atom catalysts exhibit desirable electrochemical catalytic properties.However,the replacement of N atoms by heteroatoms(B,P,S,etc.)has been regarded as a useful method for regulating the coordination environment.The structure engineered M-N-C sites via doping heteroatoms play an important role to the adsorption and activation of the oxygen intermediate.Herein,we develop an efficient strategy to construct dual atomic site catalysts via the formation of a Co_(1)-PN and Ni1-PN planar configuration.The developed Co_(1)-PNC/Ni1-PNC catalyst exhibits excellent bifunctional electrocatalytic performance in alkaline solution.Both experimental and theoretical results demonstrated that the N/P coordinated Co/Ni sites moderately reduced the binding interaction of oxygen intermediates.The Co_(1)-PNC/Ni1-PNC endows a rechargeable Zn-air battery with excellent power density and cycling stability as an air-cathode,which is superior to that of the benchmark Pt/C+IrO_(2).This work paves an avenue for design of dual single-atomic sites and regulation of the atomic configuration on carbon-based materials to achieve high-performance electrocatalysts. | Botao Hu Aijian Huang Xuejiang Zhang Zheng Chen Renyong Tu Wei Zhu Zhongbin Zhuang Chen Chen Qing Peng Yadong Li | 2021 | Nano Research2021，14，10： | 6 |
| 2 | Applications of single-atom catalysts显示文摘Owing to unsaturated coordination environment,quantum size effect and metal-support interaction,single-or dual-atom metal sites,such as Mn,Fe,Co,Ni,Cu,Zn,Mo,Ru,Rh,Pd,Ag,Sn,Ir,Pt,Au,Bi,and Er coordinated with nonmetallic elements such as O,N,P,and S,exhibit different electronic configurations,which endow them with high catalytic performances in multiple redox reactions and versatile applications in organic synthesis,environmental remediation,energy conversion,and biomedicine.Despite intense research,the relation of structure-activity for single-atom catalysts(SACs)still bedazzles researchers,since diversified configurations of active sites would bring about difficulty in structural identification and theoretical simulations.Here,recent results on the applications of SACs are reviewed with an emphasis on identifying the active sites and discussing the relation between structure and property. | Qiaoqiao Zhang Jingqi Guan | 2022 | Nano Research2022，15，1： | 5 |
| 3 | Constructing the separation pathway for photo-generated carriers by diatomic sites decorated on MIL-53-NH2(Al)for enhanced photocatalytic performance显示文摘High yield production of phenol from hydroxylation of benzene with low energy consumption is of paramount importance,but still challenging.Herein,a new strategy,consisting of using diatomic synergistic modulation(DSM)to effectively control the separation of photo-generated carriers for an enhanced production of phenol is reported.The atomic level dispersion of Fe and Cr respectively decorated on Al based MIL-53-NH_(2)photocatalyst(Fe1/Cr:MIL-53-NH_(2))is designed,in which Cr single atoms are substituted for Al3+while Fe single atoms are coordinated by N.Notably,the Fe1/Cr:MIL-53-NH_(2)significantly boosts the photooxidation of benzene to phenol under visible light irradiation,which is much higher than those of MIL-53-NH_(2),Cr:MIL-53-NH_(2),Fe1/MIL-53-NH_(2),and Fe nanoparticles/Cr:MIL-53-NH_(2)catalysts.Theoretical and experimental results reveal that the Cr single atoms and Fe single atoms can act as electron acceptor and electron donor,respectively,during photocatalytic reaction,exhibiting a synergistic effect on the separation of the photo-generated carriers and thereby causing great enhancement on the benzene oxidation.This strategy provides new insights for rational design of advanced photocatalysts at the atomic level. | Gang Wang Yan Liu Ning Zhao Huimei Chen Wenjie Wu Yueyue Li Xiangwen Liu Ang Li Wenxing Chen Junjie Mao | 2022 | Nano Research2022，15，8： | 1 |
| 4 | Single atom catalysts by atomic diffusion strategy显示文摘The depletion of energy and increasing environmental pressure have become one of the main challenges in the world today.Synthetic high-efficiency catalysts bring hope for efficient conversion of energy and effective treatment of pollutants,especially,single-atom catalysts(SACs)are promising candidates.Herein,we comprehensively summarizes the atomic diffusion strategy,which is considered as an effective method to prepare a series of SACs.According to the different diffusion forms of the precursors,we review the synthesis pathways of SACs from three aspects:gas diffusion,solid diffusion and liquid diffusion.The gaseous diffusion method mainly discusses atomic layer deposition(ALD)and chemical vapor deposition(CVD),both of which carry out gas phase mass transfer at high temperatures.The solid-state diffusion method can be divided into nanoparticle transformation into single atoms and solid atom migration.Liquid diffusion mainly describes the electrochemical method and the molten salt method.We hope this review can trigger the rational design of SACs. | Lihong Lin Zhuo Chen Wenxing Chen | 2021 | Nano Research2021，14，12： | 1 |
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