|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Effect of Sc and Zr additions on microstructures and corrosion behavior of Al-Cu-Mg-Sc-Zr alloys显示文摘The effects of adding the alloy element Sc to Al alloys on strengthening, recrystallization and modification of the grain microstructure have been investigated. The combination of Sc and Zr alloying not only produces a remarkable synergistic effect of inhibition of recrystallization and refinement of grain size but also substantially reduce the amount of high-cost additional Sc. In this work, the microstructures and corrosion behavior of a new type of Al-Cu-Mg-Sc-Zr alloy with Sc/Zr ratio of 1/2 were investigated.The experimental results showed that the Sc and Zr additions to Al-Cu-Mg alloy could strongly inhibit recrystallization, refine grain size, impede the segregation of Cu element along the grain boundary and increase the spacing of grain boundary precipitates. In addition, adding Sc and Zr to Al-Cu-Mg alloy effectively restricts the corrosion mechanism conversion associated with Al2 Cu Mg particles, which resulted in the change of the cross-section morphology of inter-granular corrosion from an undercutting to an elliptical shape. The susceptibility to inter-granular corrosion was significantly decreased with increasing Sc and Zr additions to the Al-Cu-Mg alloy. The relationships between microstructures evolution and inter-granular corrosion mechanism of Al-Cu-Mg-Sc-Zr alloys were also discussed. | Fangfang Sun Guiru Liu Nash Qunying Li Enzuo Liu Chunnain He Chunsheng Shi Naiqin Zhao | 2017 | Journal of Materials Science & Technology2017，33，9： | 10 |
| 2 | A bottom-up strategy toward metal nano-particles modified graphene nanoplates for fabricating aluminum matrix composites and interface study显示文摘To synthesize graphene economically and efficiently,as well as to improve the interface bonding between graphene and metal and to recede the aggregation issue of graphene,in this work,an easy and scalable bottom-up strategy for the mass production of metal nanoparticles modified graphene nanoplates(GNPs)was proposed.Cu nanoparticles modified GNPs(Cu-GNPs)and Ni nanoparticles modified GNPs(Ni-GNPs)were fabricated through this method,and then compounded with Al via ball milling technique.The asobtained Ni-GNPs/Al composite showed simultaneously improved strength and toughness compared with unreinforced Al,while the Cu-GNPs/Al composite presented a greater strengthening effect.The microstructure and interface of the two composites were carefully characterized and investigated to reveal the difference.First principle study was also adopted to explore the binding energy of different interface structures.This study could provide new insights into the fabrication of GNPs and the control of interface in GNPs/Al composites. | Tielong Han Enzuo Liu Jiajun Li Naiqin Zhao Chunnian He | 2020 | Journal of Materials Science & Technology2020，42，11： | 8 |
| 3 | Thermal Shock-Activated Spontaneous Growing of Nanosheets for Overall Water Splitting显示文摘Nanomaterials based on nickel foam(NF) have been widely applied in energy conversion and storage field.Traditional synthesis methods such as hydrothermal method which is dangerous and high cost limited the scalable developments.Herein,we report a fast,simple,and low-cost synthesis method of nanomaterials based on NF by Joule-heating and water soaking treatment.Thin carbon-coated CoS on NF(NF-C/CoS) was synthesized by Joule-heating for a few seconds with rapid cooling.And then,NF-C/CoS/NiOOH with core-shell heterostructure was fabricated by soaking treatment of NF-C/CoS in water on which NiOOH nanosheets grew spontaneously.The formation mechanism is proposed that the coordination complex precursor converts into C/CoS on NF driven by Joule-heating,and the nickel on the surface of NF is activated to form metastable nickel simultaneously.The metastable nickel reacting with water leads to the formation of NiOOH,and the induction of CoS makes NiOOH grow continuously.This synthesis technology provides a new route to manufacture NF-based nanostructures,and the as-fabricated NF-C/CoS/NiOOH exhibits great potential as electrocatalyst for oxygen evolution reaction and hydrogen evolution reaction. | Han Wu Qi Lu Jinfeng Zhang Jiajun Wang Xiaopeng Han Naiqin Zhao Wenbin Hu Jiajun Li Yanan Chen Yida Deng | 2020 | Nano-Micro Letters2020，12，11： | 6 |
| 4 | Effect of Ni,Fe and Fe-Ni alloy catalysts on the synthesis of metal contained carbon nano-onions and studies of their electrochemical hydrogen storage properties显示文摘Three types of carbon nano-onions(CNOs) including Ni@CNOs.Fe_3C@CNOs and Fe_(0.64)Ni_(0.36)@CNOs nanoparticles have been synthesized by catalytic decomposition of methane at 850 ℃ using nickel,iron and iron-nickel alloy catalysts.Comparative and systematic studies have been carried out on the morphology,structural characteristics and graphitic crystallinity of these CNOs products.Furthermore,the electrochemical hydrogen storage properties of three types of CNOs have been investigated.Measurements show that the Ni@CNOs have the highest discharge capacity of 387.2 mAh/g,coiTesponding to a hydrogen storage of 1.42%.This comparison study shows the advantages of each catalyst in the growth of CNOs.enabling the controllable synthesis and tuning the properties of CNOs by mediating different metals and their alloy for using in the fuel cell system. | Chenguang Zhang Jiajun Li Chunsheng Shi Chunnian He Enzuo Liu Naiqin Zhao | 2014 | Journal of Energy Chemistry2014，23，3： | 5 |
| 5 | Graphene quantum dots derived from hollow carbon nano-onions显示文摘此处,有不同结构的碳 nano 洋葱(CNO ) 为 graphene 量点(GQD ) 的合成作为先锋被调查了。有一件制服的空 CNO 收益 GQD 缩放分发,这被发现,而在 CNO 结构的金属封装为一样是不利的。而且,空 CNO 为有黄绿色的混合的光和 long-ranged 刺激波长的 GQD 的合成也是有益的( 前 )-independent photoluminescent (PL ) 行为,在哪个 前 上面的限制 480 nm。这些特征启用安全察觉到和在可见轻区域与更长的刺激波长追踪应用的房间。荧光灯的察觉到在可见轻刺激下面为检测 Cu (II ) 探查离子和无毒的房间成像的综合 GQD 的潜在的应用程序被演示了。这意味着那察觉到罐头没有对紫外刺激的需要在自然环境被完成和 bioimaging。这个工作在以他们的内部空格定制 CNO 结构综合提供引用给研究人员有需要的光 behavior.Open 的 GQD | Chenguang Zhang Jiajun LI Xianshun Zeng Zhihao Yuan Naiqin Zhao | 2018 | Nano Research2018，11，1： | 4 |
| 6 | Fabrication of Graphene Nanoplates Modified with Nickel Nanoparticles for Reinforcing Copper Matrix Composites显示文摘In order to improve the interface wettability as well as the interfacial bonding between graphene and copper matrix,in this work,graphene nanoplates modified with nickel nanoparticles(Ni-GNPs)were synthesized using a one-step method based on spray-drying and chemical vapor deposition.Thereafter,0.33 wt%Ni-GNPs were introduced into copper matrix composite by the molecular-level mixing method,leading to further enhancement of 90%in yield strength.This is attributed to the presence of Ni-GNPs,which provided high resistance to matrix against deformation.In addition,with the modification of nickel at the interface,the wettability and interfacial bonding between graphene nanoplates and copper matrix were improved,which enhanced the load transfer then.Furthermore,the microstructures and strengthening mechanisms were investigated and discus sed meanwhile. | Tielong Han Jiajun Li Naiqin Zhao Chunnian He | 2020 | Acta Metallurgica Sinica(English Letters)2020，33，5： | 3 |
| 7 | Simultaneously optimizing pore morphology and enhancing mechanical properties of Al-Si alloy composite foams by graphene nanosheets显示文摘The integrity and regularity of pore morphology play an important role in determining the mechanical properties of the metallic foam materials.The conventional methods on refining pore morphology are mainly focused on the optimization of fabrication techniques,however,they are usually inconvenient and complicated.Recently,incorporating nano reinforcement is considered to be a suitable way to fabricate metallic composite foams accompanied by optimized pore morphology and enhanced mechanical properties.In this work,through a facile and rapid powder metallurgy foaming method,the aluminum-silicon(Al-Si)alloy composite foams reinforced by graphene nanosheets(GNSs)are successfully fabricated.The microstructure analyses reveal that,for the Al-Si alloy foams incorporating the GNSs(GNSs/Al-Si composite foams),the pore size is transformed to be smaller,the pore size distributions become more homogeneous and the pore shape is also refined to a regular and roundish state.Meanwhile,the shape of Si precipitates is found transforming from an irregular long strip(length of~20μm,width of~5μm)to a fine particle state(diameter of~5μm).Moreover,the compressive testing results show that,the 0.4wt%GNSs/Al-Si composite foams own the optimal compression stress of 11.7±0.5 MPa,plateau stress of 10.0±1.0 MPa and energy absorption capacity of 6.8±0.7 MJ/m^(3),which have improvement of 58.1%,53.8%and 51.1%in comparison with the Al-Si alloy foams counterpart,respectively.The present findings may pave a new way for developing new generation of metallic composite foams that with stable microstructure and excellent mechanical performance. | Weiting Li Xudong Yang Kunming Yang Chunnian He Junwei Sha Chunsheng Shi Yunhui Mei Jiajun Li Naiqin Zhao | 2022 | Journal of Materials Science & Technology2022，，6： | 3 |
| 8 | Cu nanoparticle-decorated two-dimensional carbon nanosheets with superior photothermal conversion efficiency of 65 % for highly efficient disinfection under near-infrared light显示文摘Low photothermal conversion efficiency restricts the antibacterial application of photothermal materials.In this work,two-dimensional carbon nanosheets(2D C)were prepared and decorated with Cu nanoparticles(2D C/Cu)by using a simple soluble salt template method combined with ultrasonic exfoliation.The photothermal conversion efficiency of 2 D C/Cu system can be optimized by changing the content of Cu nanoparticles,where the 2D C/Cu2 showed the best photothermal conversion efficiency(á)of 65.05%under 808 nm near-infrared light irradiation.In addition,the photothermal performance can affect the release behavior of Cu ions.This superior photothermal property combined with released Cu ions can endow this 2D hybrid material with highly efficient antibacterial efficacy of 99.97%±0.01%,99.96%±0.01%,99.97%±0.01%against Escherichia coli,Staphylococcus aureus,and methicillin-resistant Staphylococcus aureus,respectively,because of the synergetic effect of photothermy and ion release.In addition,this 2D hybrid system exhibited good cytocompatibility.Hence,this study provides a novel strategy to enhance the photothermal performance of 2D materials and thus will be beneficial for development of antibiotics-free antibacterial materials with safe and highly efficient bactericidal activity. | Jie Song Jun Li Xiangren Bai Liang Kang Liying Ma Naiqin Zhao Shuilin Wu Yuan Xue Jiajun Li Xiaojian Ji Junwei Sha | 2021 | Journal of Materials Science & Technology2021，，28： | 2 |
| 9 | Copper-Coated Graphene Nanoplatelets-Reinforced Al–Si Alloy Matrix Composites Fabricated by Stir Casting Method显示文摘In this study,Cu nanoparticles-coated graphene nanoplatelets(Cu-NPs@GNPs)were synthesized by a simple in situ method with the assistance of Na Cl templates and used for reinforcing Al–10 Si composites through stir casting process.The experimental results showed that the coating of Cu-NPs on the GNPs could compromise the density mismatch between GNPs and metal matrix and eff ectively hinder the float of GNPs during stirring.The reaction of Cu-NPs and Al matrix could protect the structural integrity of GNPs as well as improve the interfacial wettability between GNPs and the matrix,thus promoting the uniform dispersion of GNPs in the composites.As a result,the as-prepared 0.5 wt%Cu-NPs@GNPs/Al–10 Si composite exhibited a tensile strength of 251 MPa(45%higher than the Al–10 Si)with a total elongation of 15%.The strengthening eff ects were mainly attributed to the following three reasons:Firstly,the Cu-NPs coating improved the interfacial bonding between GNPs and Al matrix which promoted the load transfer from the matrix to the GNPs.Secondly,the nanoscale Al 2 Cu formed by the reaction of Cu-NPs and Al matrix played a role in precipitation strengthening.Thirdly,GNPs refined the silicon phases and improved the monolithic performances of the composites. | Xiaoqi Han Lizhuang Yang Naiqin Zhao Chunnian He | 2021 | Acta Metallurgica Sinica(English Letters)2021，34，1： | 2 |
| 10 | NiO nanotubes assembled in pores of porous anodic alumina and their optical absorption properties 显示文摘 | Shi Chunsheng Wang Guoqiang Zhao Naiqin | 2008 | Chemical Physics Letter2008，454，： | 1 |
| 11 | 显示文摘 | Zhao Naiqin Zou Tianchun Shi Chunsheng | 2006 | Mater Sci & Eng B2006，，127： | 1 |
| 12 | In situ synthesis ofultrathin 2-D TiO2 with high energy facets on graphene oxide for enhancing photocatalytic activity显示文摘 | Sha Junwei Zhao Naiqin Liu Enzuo | 2014 | Carbon2014，68，： | 1 |
| 13 | Covalent functionalization of graphene by azobenzene with molecular hydrogen bonds for long-term solar thermal storage显示文摘 | Feng Yiyu Liu Hongpo Luo Wen Zhao Naiqin | 2013 | Scientific Reports2013，，3： | 1 |
| 14 | Car- bon onion growth enhanced by nitrogen incorporation 显示文摘 | He Chunnian Zhao Naiqin Shi Chunsheng | 2006 | Scripta Materialia2006，54，10： | 1 |
| 15 | Fabrication and properties of carbon nanotubes reinforced Fe/hydroxyapatite composites by in situ chemical vapor deposition显示文摘 | Haipeng Li Naiqin Zhao Yuan Liu Chunyong Liang Chunsheng Shi Xiwen Du Jiajun Li | 2008 | Composites Part A2008，，7： | 1 |
| 16 | Low-tem- perature synthesis of carbon onions by chemical vapor deposition using nickel catalyst supported on aluminum 显示文摘 | He Chunnian Zhao Naiqin Du Xiwen | 2006 | Scripta Materialia2006，54，4： | 1 |
| 17 | Fabrication and growth mechanism of carbon nanotubes by catalytic chemical vapor deposition显示文摘 | Naiqin Zhao Chunnian He | 2006 | MaterialLetters2006，60，： | 1 |
| 18 | Toughening Effects through Optimizing Cell Structure and Deformation Behaviors of Al–Mg Foams显示文摘As widely used protective materials,the application of Al foams is still limited by their low intrinsic mechanical properties caused by the brittleness of struts.The introduction of Mg is recently demonstrated effective to improve the mechanical performance of Al foams;however,the mechanism of Mg modification is still not clear.In this work,Al-Mg foams are developed through a powder metallurgy process with excellent compression performance and high energy absorption capacity.The effects of Mg modification on the cell structure,toughness,and deformation behavior are investigated systematically.As a result,the small cell size of~1.8 mm and the high sphericity of 0.92 are achieved with 5% of Mg addition,delivering high compression stress of 8.5±0.43 MPa and energy absorption capacity of 6.9±0.36 MJ/m^(3),simultaneously.The synergistic mechanism for the improved mechanical performance is also demonstrated to be the combination of stress transfer and plastic deformation behavior of cells.The results provide a new strategy to develop high-performance foam materials by improving toughness and further promote the practical application. | Hao Yu Xudong Yang Weiting Li Xudong Rong Siyuan Guo Lishi Ma Lizhuang Yang Junwei Sha Naiqin Zhao | 2022 | Acta Metallurgica Sinica(English Letters)2022，35，12： | 1 |
| 19 | NiO Nanotubes As-Sembled in Pores of Porous Anodic Alumina and Their Optical Absorption Properties显示文摘 | Shi Chunsheng Wang Guoqiang Zhao Naiqin | 2008 | Chemical Physics Letter2008，454，： | 1 |
| 20 | Self-anchored catalysts for substrate-free synthesis of metal-encapsulated carbon nano-onions and study of their magnetic properties显示文摘我们表明包含阶段分离为碳 nanostructures 的没有底层的合成产生的 Fe-Ni 合金 nanosheet 的新奇自我抛锚的催化剂结构的合成。快 Fourier 变换分析被执行以便在减小和化学蒸汽免职(CVD ) 期间调查阶段和合金 nanosheet 的结构的进化生长。-Fe-Ni (Fe 0.64 Ni 0.36) 和 -Fe-Ni (铁镍合金) 分阶段执行在 NiFe 2 O 4 nanosheet 催化剂先锋在 H 2 减小期间,在一个 -Fe-Ni 矩阵上形成 selfanchored 单音分散 -Fe-Ni nanocrystals。Fe-Ni 合金 nanosheet 为种包含金属的碳 nano 洋葱(CNO ) 催化剂用作,并且作为对抛锚的支持这些 preformed nanoparticles,没有为 CVD 生长的另外的底层的要求的让步的单音分散催化剂 nanoparticles。这合成能够减轻结合并且 Ostwald 没有另外的底层的帮助,成熟。这结构允许尽管有聚集的制服大小的 CNO 的生长,弄碎,并且合金表叠。这研究在大规模向碳 nanostructures 的没有底层的合成由阶段分离为新奇催化剂结构提供一个有希望的图案。最后,铁磁性的 Fe 0.64 Ni 0.36@CNOs 粒子在磁性的存储和水纯化演示他们的应用程序,,无毒的水处理材料。 | Chenguang Zhang Jiajun Li Chunsheng Shi Chunnian He Enzuo Liu Naiqin Zhao | 2016 | Nano Research2016，9，4： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员