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学者姓名:宋晓平

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Selective synthesis of CuO/C nanocomposites and porous CuO based on polyacrylic acid hydrogel system as high-performance anode for lithium-ion batteries Scopus SCIE
期刊论文 | 2019 , 518 , 1-7 | Chemical Physics
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Abstract :

© 2018 Elsevier B.V. CuO/C nanocomposites and porous CuO were selectively synthesized by a facile, low-cost and large-scale synthesis method based on polyacrylic acid hydrogel system. As the anode materials for lithium-ion batteries, the capacity of porous CuO is higher than CuO/C nanocomposites, while gradually decreases after 40 cycles due to the lack of supporting matrix. In CuO/C nanocomposites, CuO nanoparticles are uniformly embedded in the three-dimensional carbon matrix, which can buffer the large volume change, suppress the particle pulverization, and prevent the particle agglomeration of CuO nanoparticles. The capacity of CuO/C nanocomposites maintains at about 690 mAh g−1 till 200th cycle.

Keyword :

Anodes Copper oxide Hydrogel Lithium ion batteries Nanocomposites

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GB/T 7714 Wang, Fei , Cheng, Danfei , Cheng, Tingting et al. Selective synthesis of CuO/C nanocomposites and porous CuO based on polyacrylic acid hydrogel system as high-performance anode for lithium-ion batteries [J]. | Chemical Physics , 2019 , 518 : 1-7 .
MLA Wang, Fei et al. "Selective synthesis of CuO/C nanocomposites and porous CuO based on polyacrylic acid hydrogel system as high-performance anode for lithium-ion batteries" . | Chemical Physics 518 (2019) : 1-7 .
APA Wang, Fei , Cheng, Danfei , Cheng, Tingting , Zong, Jingui , Long, Yixuan , Zhao, Mingshu et al. Selective synthesis of CuO/C nanocomposites and porous CuO based on polyacrylic acid hydrogel system as high-performance anode for lithium-ion batteries . | Chemical Physics , 2019 , 518 , 1-7 .
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Superior cycling stability of a crystalline/amorphous Co3S4 core-shell heterostructure for aqueous hybrid supercapacitors EI Scopus SCIE
期刊论文 | 2018 , 6 (43) , 21350-21359 | Journal of Materials Chemistry A
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Abstract :

© The Royal Society of Chemistry. In this article, a novel crystalline/amorphous Co3S4 core-shell heterostructure supported on nickel foam is fabricated through a facile method. Due to the unique structure of the crystalline Co3S4 core that provides stable mechanical support and surface-active sites and the amorphous shell that facilitates diffusion and reaction of electrolyte ions, the obtained crystalline/amorphous Co3S4 electrode shows a superior pseudocapacitive performance of 2.65 F cm−2 (2038.5 F g−1) at a current density of 5 mA cm−2 and even 1.81 F cm−2 (1392.3 F g−1) at 50 mA cm−2. In addition, the Co3S4//AC exhibits a relatively high energy density of 54.78 W h kg−1 at a power density of 400.02 W kg−1 and excellent cycling performance (about 94.8% capacitance retention over 32 500 cycles). The kinetic analysis reveals a diffusion controlled faradaic characteristic of Co3S4 (73.21% diffusion-controlled contribution). Moreover, the fabrication process presented in this work is facile, cost-effective, and environmentally benign, offering a feasible solution for fabricating next-generation high-performance energy storage devices.

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GB/T 7714 Liang, Miaomiao , Zhao, Mingshu , Wang, Haiyang et al. Superior cycling stability of a crystalline/amorphous Co3S4 core-shell heterostructure for aqueous hybrid supercapacitors [J]. | Journal of Materials Chemistry A , 2018 , 6 (43) : 21350-21359 .
MLA Liang, Miaomiao et al. "Superior cycling stability of a crystalline/amorphous Co3S4 core-shell heterostructure for aqueous hybrid supercapacitors" . | Journal of Materials Chemistry A 6 . 43 (2018) : 21350-21359 .
APA Liang, Miaomiao , Zhao, Mingshu , Wang, Haiyang , Zheng, Qingyang , Song, Xiaoping . Superior cycling stability of a crystalline/amorphous Co3S4 core-shell heterostructure for aqueous hybrid supercapacitors . | Journal of Materials Chemistry A , 2018 , 6 (43) , 21350-21359 .
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Multifunctional triple-porous Fe3O4@SiO2 superparamagnetic microspheres for potential hyperthermia and controlled drug release EI SCIE Scopus
期刊论文 | 2017 , 7 (51) , 32049-32057 | RSC ADVANCES | IF: 2.936
WoS CC Cited Count: 2
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Abstract :

Magnetic porous particles with high magnetization and large surface area hold great potential for multimodal therapies. In this work, novel triple-porous Fe3O4@SiO2 microspheres were synthesized by encapsulation of porous Fe3O4 with dual-porous SiO2 shells. This novel triple-porous structure endows the microspheres with features of large surface area (426 m(2) g(-1)) and pore volume; thus they could be used as an efficient drug delivery platform. These microspheres demonstrate superparamagnetic behavior with saturation magnetization of 52 emu g(-1). Measurements of AC magnetic-field-induced heating properties showed that the as-prepared microspheres could controllably generate heat to reach the hyperthermia temperature within a short time of exposure to an alternating magnetic field (AMF); hence they could be suitable as a hyperthermia agent for thermal therapy. Using a therapeutic agent 5-fluorouracil (5-Fu) as a model drug, the porous microspheres display high drug loading capacity, and sustained release behavior can be observed under the condition of no AMF actuation, while under the excitation of AMF, controlled drug release behavior can be achieved. Due to its magnetic field induced heating and AMF controlled drug release capabilities, this triple-porous nanomaterial provides an excellent platform for both hyperthermia treatment and drug delivery.

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GB/T 7714 Lu, Xuegang , Liu, Qianru , Wang, Liqun et al. Multifunctional triple-porous Fe3O4@SiO2 superparamagnetic microspheres for potential hyperthermia and controlled drug release [J]. | RSC ADVANCES , 2017 , 7 (51) : 32049-32057 .
MLA Lu, Xuegang et al. "Multifunctional triple-porous Fe3O4@SiO2 superparamagnetic microspheres for potential hyperthermia and controlled drug release" . | RSC ADVANCES 7 . 51 (2017) : 32049-32057 .
APA Lu, Xuegang , Liu, Qianru , Wang, Liqun , Jiang, Wenfeng , Zhang, Wenying , Song, Xiaoping . Multifunctional triple-porous Fe3O4@SiO2 superparamagnetic microspheres for potential hyperthermia and controlled drug release . | RSC ADVANCES , 2017 , 7 (51) , 32049-32057 .
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Large magnetocaloric effect and near-zero thermal hysteresis in the rare earth intermetallic Tb1-xDyxCo2 compounds EI SCIE PubMed Scopus
期刊论文 | 2017 , 29 (5) | JOURNAL OF PHYSICS-CONDENSED MATTER | IF: 2.617
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Abstract :

We report the magnetocaloric effect in a Tb1-xDyxCo2 compound which exhibits a wide working temperature window around the Curie temperature (T-C) and delivers a large refrigerant capacity (RC) with near-zero thermal hysteresis. Specifically, the wide full width at half maxima (delta(WFHM)) can reach up to 62 K and the RC value changes from 216.5 to 274.3 J Kg(-1) when the external magnetic field increases to 5 T. Such magnetocaloric effects are attributed to a magnetic and structural transition from a paramagnetic and cubic phase to a ferromagnetic (MS along [111] direction) and rhombohedral phase or ferromagnetic (MS along [001] direction) and tetragonal phase.

Keyword :

rare earth compounds thermal hysteresis phase transition magnetocaloric effect

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GB/T 7714 Zeng, Yuyang , Tian, Fanghua , Chang, Tieyan et al. Large magnetocaloric effect and near-zero thermal hysteresis in the rare earth intermetallic Tb1-xDyxCo2 compounds [J]. | JOURNAL OF PHYSICS-CONDENSED MATTER , 2017 , 29 (5) .
MLA Zeng, Yuyang et al. "Large magnetocaloric effect and near-zero thermal hysteresis in the rare earth intermetallic Tb1-xDyxCo2 compounds" . | JOURNAL OF PHYSICS-CONDENSED MATTER 29 . 5 (2017) .
APA Zeng, Yuyang , Tian, Fanghua , Chang, Tieyan , Chen, Kaiyun , Yang, Sen , Cao, Kaiyan et al. Large magnetocaloric effect and near-zero thermal hysteresis in the rare earth intermetallic Tb1-xDyxCo2 compounds . | JOURNAL OF PHYSICS-CONDENSED MATTER , 2017 , 29 (5) .
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Monte Carlo simulation of magnetic domain structure and magnetic properties near the morphotropic phase boundary SCIE PubMed
期刊论文 | 2017 , 19 (10) , 7236-7244 | PHYSICAL CHEMISTRY CHEMICAL PHYSICS | IF: 3.906
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Abstract :

The morphotropic phase boundary (MPB), which is the boundary separating a tetragonal phase from a rhombohedral phase by varying the composition or mechanical pressure in ferroelectrics, has been studied extensively for decades because it can lead to strong enhancement of piezoelectricity. Recently, a parallel ferromagnetic MPB was experimentally reported in the TbCo2-DyCo2 ferromagnetic system and this discovery proposes a new way to develop potential materials with giant magnetostriction. However, the role of magnetic domain switching and spin reorientation near the MPB region is still unclear. For the first time, we combine micromagnetic theory with Monte Carlo simulation to investigate the evolution of magnetic domain structures and the corresponding magnetization properties near the MPB region. It is demonstrated that the magnetic domain structure and the corresponding magnetization properties are determined by the interplay among anisotropy energy, magnetostatic energy and exchange energy. If the anisotropy energy barrier is large compared with the magnetostatic energy barrier and the exchange energy barrier, the MPB region is a T and R mixed structure and magnetic domain switching is the dominant mechanism. If the anisotropy energy barrier is small, the MPB region will also contain M phases and spin reorientation is the dominant mechanism. Our work could provide a guide for the design of advanced ferromagnetic materials with enhanced magnetostriction.

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GB/T 7714 Wei, Songrui , Yang, Sen , Wang, Dong et al. Monte Carlo simulation of magnetic domain structure and magnetic properties near the morphotropic phase boundary [J]. | PHYSICAL CHEMISTRY CHEMICAL PHYSICS , 2017 , 19 (10) : 7236-7244 .
MLA Wei, Songrui et al. "Monte Carlo simulation of magnetic domain structure and magnetic properties near the morphotropic phase boundary" . | PHYSICAL CHEMISTRY CHEMICAL PHYSICS 19 . 10 (2017) : 7236-7244 .
APA Wei, Songrui , Yang, Sen , Wang, Dong , Song, Xiaoping , Ke, Xiaoqin , Gao, Yipeng et al. Monte Carlo simulation of magnetic domain structure and magnetic properties near the morphotropic phase boundary . | PHYSICAL CHEMISTRY CHEMICAL PHYSICS , 2017 , 19 (10) , 7236-7244 .
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Effect of martensitic structure on the magnetic field controlled damping effect in a Ni-Fe-Mn-Ga ferromagnetic shape memory alloy EI SCIE Scopus
期刊论文 | 2017 , 52 (21) , 12854-12860 | JOURNAL OF MATERIALS SCIENCE | IF: 2.993
WoS CC Cited Count: 2 SCOPUS Cited Count: 1
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Abstract :

We investigated the effect of martensitic structure on the magnetic field controlled damping effect in a Ni53Fe2Mn20Ga25 polycrystalline ferromagnetic shape memory alloy, which undergoes the structure transitions in the sequence of parent phase -> seven-layer modulated (14M) martensite -> non-modulated tetragonal martensite. We found that large increase in damping capacity by applying magnetic field appears in the 14M martensite, but insignificant increase is observed in the non-modulated tetragonal martensite. This demonstrates that the magnetic field controlled damping effect is strongly dependent on the martensitic structure. It is proposed that magnetic field controlled damping effect relies on the twinning stress and magnetic stress of martensite. Large magnetic field controlled damping effect is expected to appear in the martensitic structure with large magnetocrystalline anisotropy and small twin shear.

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GB/T 7714 Wang, Yu , Huang, Chonghui , Wu, Haijun et al. Effect of martensitic structure on the magnetic field controlled damping effect in a Ni-Fe-Mn-Ga ferromagnetic shape memory alloy [J]. | JOURNAL OF MATERIALS SCIENCE , 2017 , 52 (21) : 12854-12860 .
MLA Wang, Yu et al. "Effect of martensitic structure on the magnetic field controlled damping effect in a Ni-Fe-Mn-Ga ferromagnetic shape memory alloy" . | JOURNAL OF MATERIALS SCIENCE 52 . 21 (2017) : 12854-12860 .
APA Wang, Yu , Huang, Chonghui , Wu, Haijun , Liao, Xiaoqi , Gao, Jinghui , Wang, Dong et al. Effect of martensitic structure on the magnetic field controlled damping effect in a Ni-Fe-Mn-Ga ferromagnetic shape memory alloy . | JOURNAL OF MATERIALS SCIENCE , 2017 , 52 (21) , 12854-12860 .
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High damping capacity of a Ni-Cu-Mn-Ga alloy in wide ambient-temperature range EI SCIE Scopus
期刊论文 | 2017 , 695 , 2400-2405 | JOURNAL OF ALLOYS AND COMPOUNDS | IF: 3.779
WoS CC Cited Count: 5 SCOPUS Cited Count: 5
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Abstract :

The damping capacity of Ni55-xCuxMn25Ga20 (x = 0, 2, 4, 6) shape memory alloys is studied in details. The results show an increasing damping peak capacity with increasing Cu content. Especially, a high damping peak with the peak value of 0.08 is found in Ni49Cu6Mn25Ga20 alloy, which spans over a wide temperature range of 173 K-425 K. The first-principles calculations indicate the substitution of Cu for Ni weakens the p-d orbital hybridization of Ni55-xCuxMn25Ga20 and reduces its martensite modulus, which thus enhances its twin boundary mobility and the damping capability. Our study sheds light on developing ambient-temperature high damping alloys. (C) 2016 Elsevier B.V. All rights reserved.

Keyword :

Martensitic phase transformation Dynamic mechanical analysis Ferromagnetic shape memory alloy Magnetic properties Damping

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GB/T 7714 Liao, Xiaoqi , Wang, Yu , Fan, Genlian et al. High damping capacity of a Ni-Cu-Mn-Ga alloy in wide ambient-temperature range [J]. | JOURNAL OF ALLOYS AND COMPOUNDS , 2017 , 695 : 2400-2405 .
MLA Liao, Xiaoqi et al. "High damping capacity of a Ni-Cu-Mn-Ga alloy in wide ambient-temperature range" . | JOURNAL OF ALLOYS AND COMPOUNDS 695 (2017) : 2400-2405 .
APA Liao, Xiaoqi , Wang, Yu , Fan, Genlian , Liu, Enke , Shang, Jiaruo , Yang, Sen et al. High damping capacity of a Ni-Cu-Mn-Ga alloy in wide ambient-temperature range . | JOURNAL OF ALLOYS AND COMPOUNDS , 2017 , 695 , 2400-2405 .
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Baize-like CeO2 and NiO/CeO2 nanorod catalysts prepared by dealloying for CO oxidation EI SCIE PubMed Scopus
期刊论文 | 2017 , 28 (4) | NANOTECHNOLOGY | IF: 3.404
WoS CC Cited Count: 9 SCOPUS Cited Count: 12
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Abstract :

Baize-like monolithic CeO2 and NiO/CeO2 nanorod catalysts were prepared by combined dealloying and calcination and the catalytic activities were evaluated using CO catalytic oxidation. The CeO2 catalysts were composed of nanorods and exhibited a three-dimensional supporting structure with pores. After introduction of NiO, dispersed NiO nanosheets and nanoparticles were supported on the surface of CeO2 nanorods and they were not well-crystallined due to CeO2 inhibiting the NiO crystallization. The Raman and x-ray photoelectron spectroscopy analyses revealed that the introduction of NiO species into CeO2 generated more coordinate unsaturated Ni atoms, oxygen vacancies, defects and active sites for CO catalytic reactions. The reaction activation energy of NiO/CeO2 nanorod catalyst prepared from the Al83Ce10Ni7 precursor alloy was just 31.2 kJ mol(-1) and the CO conversion can reach up to 97% at 240 degrees C, which was superior to that of pure CeO2 and nanoporous NiO. The enhanced catalytic activity of baize-like NiO/CeO2 nanorods can be attributed to the strong synergistic effects between finely dispersed NiO species and surface oxygen vacancies in CeO2 nanorods.

Keyword :

nanorod catalyst dealloying baize-like NiO/CeO2 CO oxidation

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GB/T 7714 Zhang, Xiaolong , Li, Kun , Shi, Wenyu et al. Baize-like CeO2 and NiO/CeO2 nanorod catalysts prepared by dealloying for CO oxidation [J]. | NANOTECHNOLOGY , 2017 , 28 (4) .
MLA Zhang, Xiaolong et al. "Baize-like CeO2 and NiO/CeO2 nanorod catalysts prepared by dealloying for CO oxidation" . | NANOTECHNOLOGY 28 . 4 (2017) .
APA Zhang, Xiaolong , Li, Kun , Shi, Wenyu , Wei, Caihua , Song, Xiaoping , Yang, Sen et al. Baize-like CeO2 and NiO/CeO2 nanorod catalysts prepared by dealloying for CO oxidation . | NANOTECHNOLOGY , 2017 , 28 (4) .
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Morphotropic phase boundary in pseudo-binary Ferromagnetic Tb1-xGdxFe2 System EI CPCI-S Scopus
会议论文 | 2016 | 4th International Conference on Aerospace Science and Engineering (ICASE)
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The structure and magnetic properties of ferromagnetic Tb1-xGdxFe2 system have been studied through the morphotropic phase boundary (MPB), a phase boundary between two ferroic phases of different crystal symmetry. Morphotropic phase boundary (MPB) has been studied extensively for its extraordinary enhancement effect in ferroelectrics. Based on same mechanism, we have designed a pseudobinary ferromagnetic system Tb1-xGdxFe2, of which the near-MPB composition Tb1-xGdxFe2 shows maximum magnetization under small field, and meanwhile dramatically the low magnetostriction. With synchrotron x-ray diffractometry, the crystal structure of TbFe2-rich compositions is detected to be rhombohedral and that of GdFe2-rich compositions is tetragonal below their curie temperatures. The near MPB composition Tb(0.1)Gd(0.9F)e(2), shows the maximum magnetization among all available compositions and superposition of magnetostriction behavior of R and T phases. To find MPB phenomena in ferromagnets may provide a new route to design functional materials in other ferroic MPB systems.

Keyword :

Lattice distortion Magnetostriction Morphotropic phase boundary (MPB) Ferroelectric Phase diagram

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GB/T 7714 Murtaza, Adil , Sen, Yang , Karim, Shahid et al. Morphotropic phase boundary in pseudo-binary Ferromagnetic Tb1-xGdxFe2 System [C] . 2016 .
MLA Murtaza, Adil et al. "Morphotropic phase boundary in pseudo-binary Ferromagnetic Tb1-xGdxFe2 System" . (2016) .
APA Murtaza, Adil , Sen, Yang , Karim, Shahid , Khan, Muhammad Tahir , Ghani, Awais , Fareed, Muhammad Sadiq et al. Morphotropic phase boundary in pseudo-binary Ferromagnetic Tb1-xGdxFe2 System . (2016) .
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Role of magnetic anisotropy on magnetostrictive properties of quasi-binary ferromagnetic Tb1-xGdxFe2 system EI CPCI-S Scopus
会议论文 | 2016 | 4th International Conference on Aerospace Science and Engineering (ICASE)
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The magnetic and magnetostrictive properties of polycrystalline alloys Tb1-xGdxFe2 (0 <= x <= 1) have been investigated. The curie temperature of Tb1-xGdxFe2 increases while room temperature saturation magnitization Ms decreases monotonously with increasing Gd concentration. Furthermore the magnetostriction coefficient lambda(111) decrease as Gd content increases for Tb1-xGdxFe2 compounds. The decreasing of anisotropy results in small increase in the magnetostriction at low magnetic fields for Tb0.2Gd0.8Fe2.

Keyword :

Magnetic anisotropy TbFe2 Magnetostriction lattice distortion

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GB/T 7714 Murtaza, Adil , Sen, Yang , Khan, Muhammad Tahir et al. Role of magnetic anisotropy on magnetostrictive properties of quasi-binary ferromagnetic Tb1-xGdxFe2 system [C] . 2016 .
MLA Murtaza, Adil et al. "Role of magnetic anisotropy on magnetostrictive properties of quasi-binary ferromagnetic Tb1-xGdxFe2 system" . (2016) .
APA Murtaza, Adil , Sen, Yang , Khan, Muhammad Tahir , Ghani, Awais , Fareed, Muhammad Sadiq , Karim, Shahid et al. Role of magnetic anisotropy on magnetostrictive properties of quasi-binary ferromagnetic Tb1-xGdxFe2 system . (2016) .
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