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| 1 | Enhancing both selectivity and coking-resistance of a single-atom Pd1/C3N4 catalyst for acetylene hydrogenation显示文摘选择加氢是在化学升级的一个重要工业催化过程,在因为他们的高加氢活动,基于 Pd 的催化剂广泛地被使用的地方。然而,因为重焦炭形成,差的选择和短催化剂一生是主要担心。在这个工作,原子地驱散 Pd 原子成功地在 graphitic 碳氮化物上被综合(g-C 3 用原子层免职的 N 4) 。没有 Pd nanoparticle (NP ) ,改正错误的高角度的环形的黑暗地的扫描传播电子显微镜学(HAADF 茎) 证实了孤立的 Pd 原子的主导的存在形成。在在过量乙烯的乙炔的选择加氢期间, g-C 3 N 4-supported Pd NP 催化剂比常规 Pd/Al 2 O 3 和 Pd/SiO 2 催化剂。在原处, X 光检查光致核裂变光谱学表明可观的费用从 Pd NP 转到 g-C 3 N 4 多半在催化表演改进起一个重要作用。更给人深刻印象地,单个原子的 Pd 1/C3 N 4 催化剂展出了两种更高的乙烯选择和更高的 coking 抵抗。我们的工作证明单个原子的 Pd 催化剂是在加氢反应改进选择和焦炭抵抗的一个有希望的候选人。 | Xiaohui Huang Yujia Xia Yuanjie Cao Xusheng Zheng Haibin Pan Junfa Zhu Chao Ma Hengwei Wang Junjie Li Rui You Shiqiang Wei Weixin Huang Junling Lu | 2017 | Nano Research2017，10，4： | 16 |
| 2 | Integrated multi-scheme digital modulations of spoof surface plasmon polaritons显示文摘The future wireless communications require different kinds of modulation functions to be integrated in a single intelligent device under different scenarios.Here,we propose a multi-scheme digital modulator to achieve this goal based on integrated spoof surface plasmon polaritons(SPP)in different frequency bands.By constructing switchable spoof SPP units,the propagating wave in the proposed spoof SPP waveguide can be manipulated in amplitude domain,frequency domain,and phase domain.As a proof of concept,the integrated multi-scheme digital modulator is experimentally verified to achieve at least three kinds of modulations,including amplitude shift keying,phase shift keying,and frequency shift keying,in a single digital spoof plasmonic waveguide.The simulated and measured results show that the modulator has excellent property of field confinement and is capable of frequency-domain modulation.Hence,the multi-scheme modulation property makes the proposed SPP digital modulator be an effective and reliable candidate for efficient manipulations of SPP waves and for advanced modulation technology. | Lepeng ZHANG Haochi ZHANG Min TANG Peihang HE Lingyun NIU Liangliang LIU Jiayuan LU Wenxuan TANG Junfa MAO Tiejun CUI | 2020 | Science China(Information Sciences)2020，63，10： | 2 |
| 3 | Generation ofone-or two-dimensional arrays of hollow optical microtrapsfor cold atoms, molecules, or microparticles on a chip显示文摘 | Mu Renwang Lu Junfa Xu Shuwu | 2009 | Journal of the Optical Society of America B2009，26，1： | 1 |
| 4 | Synchrotron radiation photoemission study on growth of gadolinium film over Ni(110)surface显示文摘The growth of Gd film on Ni(110) surfaco was studied by synchrotron radiation photoemission spectroscopy and XPS techniques. It is revealed that in the coverage range of 0—0.22 nm Gd4f core level showed a single-peak structure, therefore Gd film grows over Ni(110) in the layer-by-layer mode. However, when Gd coverage was larger than 0.22, nm the Gd4f peak turned gradually into double-peak and a double-peak structure with 2.3 eV separation was formed at 1.51 nm, meanwhile similar phenomenon was observed in the Gd4d XPS spectra. It is suggested that the double-peak structure of Gd4f was derived from the growth of Gd film in cluster mode and the Gd atomic clusters may exhibit different electronic states from Gd metal owing to their special structures. The Gd4f double-peak evolved into a single-peak on annealing at 600 K, implying that Gd clusters are thermodynamically unstable. | Faqiang Xu Junfa Zhu Yuming Sun Xianfeng Wang Erdong Lu Pengshou Xu Xinyi Zhang Shuxian Zhuang | 1999 | Chinese Science Bulletin1999，44，4： | 1 |
| 5 | Single palladium atoms stabilized byβ-FeOOH nanorod with superior performance for selective hydrogenation of cinnamaldehyde显示文摘Atomically dispersed single atom catalysts represent an ideal means of converting less valuable organics into value-added chemicals of interest with high efficiency.Herein,we describe a facile synthetic approach to create defect-containingβ-FeOOH doped with isolated palladium atoms that bond covalently to the nearby oxygen and iron atoms.The presence of singly dispersed palladium atoms is confirmed by spherical aberration correction electron microscopy and extended X-ray absorption fine structure measurements.This single palladium atom catalyst manifests outstanding catalytic efficiency(conversion:99%;selectivity 99%;turnover frequency:2,440 h^(-1))in the selective hydrogenation of cinnamaldehyde to afford hydrocinnamaldehyde.Experimental measurements and density functional theory(DFT)calculations elucidate the high catalytic activity and the strong metal-support interaction stem from the unique coordination environment of the isolated palladium atoms.These findings may pave the way for the facile construction of single atom catalysts in a defect-mediated strategy for efficient organic transformations in heterogeneous catalysis. | Zhijun Li Leipeng Leng Xiaowen Lu Mingyang Zhang Qian Xu J.Hugh Horton Junfa Zhu | 2022 | Nano Research2022，15，4： | 0 |
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