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| 1 | Synthesis, properties and applications of one- and two- dimensional gold nanostructures显示文摘因为金 nanomaterials 的性质和功能高度依赖于他们的粒子尺寸,形状,和维数,金 nanocrystals 的控制合成是集中的研究的题目十年了。特别,各向异性的金 nanocrystals 例如 nanowires, nanobelts, nanoplates 和 nanosheets,在电子学由于他们的惹人注目的性质和有希望的应用吸引了许多注意,催化作用, photonics,察觉到并且 biomedicine。在这评论,我们将总结 onedimensional (1D ) 的最近的开发并且二维(2D ) 金 nanostructures。为这些 1D 和 2D 金牌 nanocrystals 的准备的合成方法的各种各样的类型将被描述。而且,我们将简短也介绍性质和这些 1D 和 2D 金牌 nanocrystals 的潜在的应用。 | Xun Hong Chaoliang Tan Junze Chen Zhichuan Xu Hua Zhang | 2015 | Nano Research2015,8,1: | 9 |
| 2 | Biosynthesis and regulation of diterpenoids in medicinal plants显示文摘Plant diterpenoids are widely distributed and abundant natural products with diverse structures and functions in nature,which have been commonly used in pharmaceutical,agricultural and industrial production.In recent years,plant diterpenoids have attracted increasing attention,including their biosynthetic pathways,transcriptional regulatory networks,and biological functions.Herein,the biosynthetic pathways of diterpenoids are summarized in a modular fashion.Further,the regulatory network between diterpene biosynthesis and environmental factors is reviewed.Insights into diterpene metabolism may drive elucidation of complex active diterpene pathways and serve as a knowledge repository for metabolic engineering and cell factory construction. | REN Junze WU Yu HU Zhanpin CHEN Ruibing ZHANG Lei | 2022 | Chinese Journal of Natural Medicines2022,20,10: | 3 |
| 3 | Synthesis of MoX2 (X =Se or S) monolayers with high-concentration 1T'phase on 4H/fcc-Au nanorods for hydrogen evolution显示文摘Controlled synthesis of transition metal dichalcogenide (TMD) monolayers with unusual crystal phases has attracted increasing attention due to their promising applications in electrocatalysis.However,the facile and large-scale preparation of TMD monolayers with high-concentration unusual crystal phase still remains a challenge.Herein,we report the synthesis of MoX2 (X =Se or S) monolayers with high-concentration semimetallic 1T'phase by using the 4H/face-centered cubic (fcc)-Au nanorod as template to form the 4H/fcc-Au@MoX2 nanocomposite.The concentrations of 1T'phase in the prepared MoSe2 and MoS2 monolayers are up to 86% and 81%,respectively.As a proof-of-concept application,the obtained Au@MoS2 nanocomposite is used for the electrocatalytic hydrogen evolution reaction (HER) in acid medium,exhibiting excellent performance with a low overpotential of 178 mV at the current density of 10 mNcm^2,a small Tafel slope of 43.3 mV/dec,and excellent HER stability.This work paves a way for direct synthesis of TMD monolayers with high-concentration of unusual crystal phase for the electrocatalytic application. | Zhengqing Liu Xiao Zhang Yue Gong Qipeng Lu Zhicheng Zhang Hongfei Cheng Qinglang Ma Junze Chen Meiting Zhao Bo Chen Ye Chen Xue-Jun Wu Pengfei Yin Lin Gu Yaping Du Hua Zhang | 2019 | Nano Research2019,12,6: | 3 |
| 4 | A General Method for the Synthesis of Hybrid Nanostructures Using MoSe_(2) Nanosheet-Assembled Nanospheres as Templates显示文摘The layered transition metal dichalcogenides(TMDs)and transition metal phosphides are low-cost,earth-abundant,and robust electrocatalysts for hydrogen evolution reaction(HER).Integrating them into hybrid nanostructures is potentially promising to further boost the catalytic activity toward HER based on their synergistic effects.Herein,we report a general method for the synthesis of a series of MoSe_(2)-based hybrid nanostructures,including MoSe_(2)-Ni_(2)P,MoSe_(2)-Co_(2)P,MoSe_(2)-Ni,MoSe_(2)-Co,and MoSe_(2)-NiS,by postgrowth of Ni_(2)P,Co_(2)P,Ni,Co,and NiS nanostructures on the presynthesized MoSe_(2) nanosheet-assembled nanospheres,respectively,via a colloidal synthesis method.As a proof-of-concept application,the as-synthesized hybrid nanostructures are used as electrocatalysts for HER,exhibiting high activity and stability in acidic media.Among them,the MoSe_(2)-Co_(2)P composite shows the highest HER activity with an overpotential of 167 mV at 10 mA cm^(-2). | Shikui Han Kai Zhou Yifu Yu Chaoliang Tan Junze Chen Ying Huang Qinglang Ma Ye Chen Hongfei Cheng Weijia Zhou Hua Zhang | 2019 | Research2019,,1: | 1 |
| 5 | Surface depletion field in 2D perovskite microplates: Structural phase transition, quantum confinement and Stark effect显示文摘Surface depletion field would introduce the depletion region near surface and thus could significantly alter the optical,electronic and optoelectronic properties of the materials,especially low-dimensional materials.Two-dimensional(2D)organic—inorganic hybrid perovskites with van der Waals bonds in the out-of-plane direction are expected to have less influence from the surface depletion field;nevertheless,studies on this remain elusive.Here we report on how the surface depletion field affects the structural phase transition,quantum confinement and Stark effect in 2D(BA)2PbI4 perovskite microplates by the thickness-,temperature-and power-dependent photoluminescence(PL)spectroscopy.Power dependent PL studies suggest that high-temperature phase(HTP)and low-temperature phase(LTP)can coexist in a wider temperature range depending on the thickness of the 2D perovskite microplates.With the decrease of the microplate thickness,the structural phase transition temperature first gradually decreases and then increases below 25 nm,in striking contrast to the conventional size dependent structural phase transition.Based on the thickness evolution of the emission peaks for both high-temperature phase and low-temperature phase,the anomalous size dependent phase transition could probably be ascribed to the surface depletion field and the surface energy difference between polymorphs.This explanation was further supported by the temperature dependent PL studies of the suspended microplates and encapsulated microplates with graphene and boron nitride flakes.Along with the thickness dependent phase transition,the emission energies of free excitons for both HTP and LTP with thickness can be ascribed to the surface depletion induced confinement and Stark effect. | Wancai Li Chen Fang Haizhen Wang Shuai Wang Junze Li Jiaqi Ma Jun Wang Hongmei Luo Dehui Li | 2019 | Nano Research2019,12,11: | 1 |
| 6 | Recent advances of Rh-based intermetallic nanomaterials for catalytic applications显示文摘Rhodium(Rh)has received widespread attention in fundamental catalytic research and numerous industrial catalytic applications.Compared to homogeneous catalysts,Rh-based nanomaterials as heterogeneous catalysts are much easier to separate and collect after usage,making them more suitable for commercial use.To this purpose,there has been a constant demand in constructing stable and highly active Rh-based nanomaterials.In contrast to Rh-based solid solutions with a random distribution of metallic atoms in the lattice,Rh-based intermetallic compounds(IMCs)with a fixed stoichiometric ratio and an ordered atomic arrangement can ensure the homogenous distribution of active sites and structural stability in the catalytic process.In this review,we concentrate on the fabrication of Rh-based IMCs for catalytic applications.Various synthetic methods and protocols for the controlled preparation of Rh-based IMC are illustrated.Meanwhile,the catalytic applications and corresponding catalytic mechanisms are discussed.In addition,personal perspectives about the remaining challenges and prospects in this field are provided.We believe this review will be useful in directing the development of Rh-based IMC catalysts for heterogeneous catalysis. | Lijie Zhu Chunhai Li Qinbai Yun Sumei Han Yong Lv Qipeng Lu Junze Chen | 2023 | Chinese Chemical Letters2023,34,11: | 0 |
| 7 | Large Spin Hall Conductivity and Excellent Hydrogen Evolution Reaction Activity in Unconventional PtTe1.75 Monolayer显示文摘Two-dimensional(2D)materials have gained lots of attention due to the potential applications.In this work,we propose that based on first-principles calculations,the(2×2)patterned PtTe_(2)monolayer with kagome lattice formed by the well-ordered Te vacancy(PtTe_(1.75))hosts large and tunable spin Hall conductivity(SHC)and excellent hydrogen evolution reaction(HER)activity.The unconventional nature relies on the A1@1b band representation of the highest valence band without spin–orbit coupling(SOC).The large SHC comes from the Rashba SOC in the noncentrosymmetric structure induced by the Te vacancy.Even though it has a metallic SOC band structure,theℤ_(2)invariant is well defined because of the existence of the direct bandgap and is computed to be nontrivial.The calculated SHC is as large as 1.25×10^(3)h/e(Ωcm)^(−1)at the Fermi level(EF).By tuning the chemical potential from EF−0.3 to EF+0.3 eV,it varies rapidly and monotonically from−1.2×10^(3)to 3.1×10^(3)h/e(Ωcm)^(−1)In addition,we also find that the Te vacancy in the patterned monolayer can induce excellent HER activity.Our results not only offer a new idea to search 2D materials with large SHC,i.e.,by introducing inversion–symmetry breaking vacancies in large SOC systems,but also provide a feasible system with tunable SHC(by applying gate voltage)and excellent HER activity. | Dexi Shao Junze Deng Haohao Sheng Ruihan Zhang Hongming Weng Zhong Fang Xing-Qiu Chen Yan Sun Zhijun Wang | 2023 | Research2023,,3: | 0 |
| 8 | EFFECT OF GRAVITY FIELD ON SOLIDIFICATION BEHAVIOR OF STEEL INGOT显示文摘EFFECTOFGRAVITYFIELDONSOLIDIFICATIONBEHAVIOROFSTEELINGOT¥CHENWeide;ZHENGXianshu;JINJunze(DalianUniversityofTechnology,Dalian,... | CHEN Weide ZHENG Xianshu JIN Junze(Dalian University of Technology,Dalian,China | 1995 | Acta Metallurgica Sinica(English Letters)1995,8,2: | 0 |