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学者姓名:丁书江

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< Page ,Total 25 >
Developing Industry-Level Terahertz Imaging Resolution Using Mathematical Model EI SCIE
期刊论文 | 2021 , 11 (5) , 583-590 | IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY
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Abstract :

High-quality terahertz (THz) images are vital for the application of THz imaging in integrated circuit (IC) manufacturing. In far-field imaging, the primary reason for the blurring of the reconstructed THz images is the attenuation of the high-frequency components and Fraunhofer diffraction. This attenuation is almost due to the properties of the THz Gaussian beam and frequency absorption in the medium. The Fraunhofer diffraction is the primary reason why the images undergo blurring in any frequency regime. We propose a mathematical model to develop the resolution of THz images. The proposed model is based on the THz absorption variate. The Gaussian distribution of the THz beam is considered by including the numerical aperture of the THz time-domain spectroscopy system, spot radius at the THz beam waist, beam wavelength, and distance of the waist from the target into the model. Thus, the proposed model is useful for restructuring the THz images and developing the resolution of THz images in industrial applications.

Keyword :

Absorption Image reconstruction Fraunhofer diffraction Mathematical model Time-domain analysis Image resolution integrated circuit Gaussian distribution Absorption variate terahertz Imaging Diffraction

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GB/T 7714 Mao, Qi , Liu, Jingbo , Zhu, Yunlong et al. Developing Industry-Level Terahertz Imaging Resolution Using Mathematical Model [J]. | IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY , 2021 , 11 (5) : 583-590 .
MLA Mao, Qi et al. "Developing Industry-Level Terahertz Imaging Resolution Using Mathematical Model" . | IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY 11 . 5 (2021) : 583-590 .
APA Mao, Qi , Liu, Jingbo , Zhu, Yunlong , Lv, Cixing , Lu, Yao , Wei, Dongshan et al. Developing Industry-Level Terahertz Imaging Resolution Using Mathematical Model . | IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY , 2021 , 11 (5) , 583-590 .
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Synchronous growth of 30-twisted bilayer graphene domains with millimeter scale EI SCIE
期刊论文 | 2021 , 8 (2) | 2D Materials
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Abstract :

Bilayer graphene (BLG) with 30-twist (30-tBLG) has been proven to possess a quasicrystal structure potentially providing novel applications. Despite the growth of BLG, especially the AB-stacking bilayer, has gained great attention, the growth of 30-tBLG has been rarely achieved. Herein, for the first time, the decaborane-assisted synchronous growth of millimeter-sized single-crystalline 30-tBLG was achieved on Cu foil by controlling the nucleation density and growth kinetics of graphene during chemical vapor deposition using diluted methane gas as the carbon source. The synchronous growth kinetics and decaborane-assisted co-catalysis mechanism are revealed by monitoring the growth process from the initial stage of graphene seeds to the millimeter-size scale. A 30-tBLG based field effect transistor was fabricated and was found to possess a field-effect carrier mobility as high as 3671.3 cm2 V−1 s−1 at room temperature. Thus, this work provides a new strategy to grow high-quality and large-scale 30-tBLG domains which will facilitate their application in the quasicrystal field. © 2021 IOP Publishing Ltd

Keyword :

Quasicrystals Chemical vapor deposition Metal cladding Graphene Boron compounds Field effect transistors Hole mobility Growth kinetics Hall mobility

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GB/T 7714 Liu, Jingbo , Wang, Zegao , Ling, Dongxiong et al. Synchronous growth of 30-twisted bilayer graphene domains with millimeter scale [J]. | 2D Materials , 2021 , 8 (2) .
MLA Liu, Jingbo et al. "Synchronous growth of 30-twisted bilayer graphene domains with millimeter scale" . | 2D Materials 8 . 2 (2021) .
APA Liu, Jingbo , Wang, Zegao , Ling, Dongxiong , Wei, Dongshan , Lv, Wei , Kang, Xiaojiao et al. Synchronous growth of 30-twisted bilayer graphene domains with millimeter scale . | 2D Materials , 2021 , 8 (2) .
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Local spin-state tuning of cobalt-iron selenide nanoframes for the boosted oxygen evolution EI SCIE
期刊论文 | 2021 , 14 (1) , 365-373 | Energy and Environmental Science
WoS CC Cited Count: 19
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Abstract :

Hydrogen economy by water splitting is the indispensable cornerstone for sustainable energy yet it is impeded by sluggish anodic water oxidation. Hence, the rational design of highly efficient electrocatalysts for oxygen evolution is the key to unlocking its wider use. Herein, cobalt-iron selenide nanoframes are reported for the efficient water oxidation, which need only 270 mV overpotential to give a 10 mA cm-2 current density and outperforms most cobalt-based catalysts, and even the benchmarked commercial ruthenium oxides (RuO2). More profoundly, iron doping regulates the local spin state of cobalt species, which further accelerates charge transfer and formation of oxygenated intermediates, and consequently contributes to the enhanced oxygen evolution. This work demonstrates a highly efficient oxygen evolution electrocatalyst and may pioneer a promising approach which involves tuning the local electronic structure to achieve the improved electrocatalysis activities in energy conversion technologies. © The Royal Society of Chemistry.

Keyword :

Spin dynamics Charge transfer Hydrogen economy Iron compounds Tuning Electrocatalysis Conversion efficiency Electrocatalysts Ruthenium compounds Cobalt compounds Anodic oxidation Oxygen Electronic structure

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GB/T 7714 Zhang, Jun-Ye , Yan, Ya , Mei, Bingbao et al. Local spin-state tuning of cobalt-iron selenide nanoframes for the boosted oxygen evolution [J]. | Energy and Environmental Science , 2021 , 14 (1) : 365-373 .
MLA Zhang, Jun-Ye et al. "Local spin-state tuning of cobalt-iron selenide nanoframes for the boosted oxygen evolution" . | Energy and Environmental Science 14 . 1 (2021) : 365-373 .
APA Zhang, Jun-Ye , Yan, Ya , Mei, Bingbao , Qi, Ruijuan , He, Ting , Wang, Zhitong et al. Local spin-state tuning of cobalt-iron selenide nanoframes for the boosted oxygen evolution . | Energy and Environmental Science , 2021 , 14 (1) , 365-373 .
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A CoSe2-based 3D conductive network for high-performance potassium storage: enhancing charge transportation by encapsulation and restriction strategy EI SCIE
期刊论文 | 2021 , 5 (14) , 5351-5360 | MATERIALS CHEMISTRY FRONTIERS
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Potassium-ion batteries (PIBs) are expected as a supplement for lithium-ion batteries (LIBs) due to the abundant potassium resource and low cost. However, the large radius of the potassium ion hinders the ion transport dynamics and structural stability of the electrode material. Herein, a sandwich-like CoSe2@NC/rGO composite is successfully synthesized by a two step co-precipitation and pyrolysis/selenization method. Taking full advantage of this unique 3D structure, the electronic conductivity of CoSe2@NC/rGO-5 is about 20 times higher than that of CoSe2@NC, and the specific surface area of CoSe2@NC/rGO-5 is about 6 times higher than that of CoSe2@NC, which provides sufficient reactive sites. Moreover, the empty space between graphene layers can effectively alleviate the volume expansion and prevent the peeling of the active material during cycling. As a consequence, the as-prepared CoSe2@NC/rGO-5 anode exhibits high reversible capacity (527.5 mA h g(-1) at 0.1 A g(-1)), good cycle stability (226 mA h g(-1) at 0.5 A g(-1) after 400 cycles) and enhanced rate capability (206 and 157 mA h g(-1) at 5 and 10 A g(-1), respectively). A two-step reaction process from CoSe2 to K2CoSe2 to K2Se during discharging is confirmed by ex situ TEM and ex situ XPS. This work provides a facile approach to prepare high-performance electrodes with a 3D conductive network, and further deepens the understanding of the evolution of CoSe2 in the potassium storage process.

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GB/T 7714 Zhao, Jing , Wu, Hu , Li, Long et al. A CoSe2-based 3D conductive network for high-performance potassium storage: enhancing charge transportation by encapsulation and restriction strategy [J]. | MATERIALS CHEMISTRY FRONTIERS , 2021 , 5 (14) : 5351-5360 .
MLA Zhao, Jing et al. "A CoSe2-based 3D conductive network for high-performance potassium storage: enhancing charge transportation by encapsulation and restriction strategy" . | MATERIALS CHEMISTRY FRONTIERS 5 . 14 (2021) : 5351-5360 .
APA Zhao, Jing , Wu, Hu , Li, Long , Lu, Shiyao , Mao, Heng , Ding, Shujiang . A CoSe2-based 3D conductive network for high-performance potassium storage: enhancing charge transportation by encapsulation and restriction strategy . | MATERIALS CHEMISTRY FRONTIERS , 2021 , 5 (14) , 5351-5360 .
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Functional polymers in electrolyte optimization and interphase design for lithium metal anodes EI SCIE
期刊论文 | 2021 , 9 (23) , 13388-13401 | JOURNAL OF MATERIALS CHEMISTRY A
WoS CC Cited Count: 2
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Abstract :

The lithium metal anode (LMA) is considered one of the most promising anode materials because of its highest specific capacity and lowest reduction potential. However, the application of LMA is hindered by uncontrollable dendrite growth, an unstable interphase, and large volume fluctuations. The optimization of electrolytes and the introduction of artificial interphase layers are promising ways to address these issues on the interface between electrolyte and electrode. As an important component in electrolyte engineering and surface modification, functional polymers are attracting great attention. This review aims to provide a conceptual understanding of functional polymers in reducing dendrite growth, building a stable interphase, and accommodating volume change. There is a particular focus on the detailed interfacial chemistry and Li+ ion transport/transfer mechanism. Finally, perspectives on the current challenges and research directions for functional polymers for advanced LMAs are presented.

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GB/T 7714 Zhang, Caihong , Jin, Tong , Cheng, Guang et al. Functional polymers in electrolyte optimization and interphase design for lithium metal anodes [J]. | JOURNAL OF MATERIALS CHEMISTRY A , 2021 , 9 (23) : 13388-13401 .
MLA Zhang, Caihong et al. "Functional polymers in electrolyte optimization and interphase design for lithium metal anodes" . | JOURNAL OF MATERIALS CHEMISTRY A 9 . 23 (2021) : 13388-13401 .
APA Zhang, Caihong , Jin, Tong , Cheng, Guang , Yuan, Shuai , Sun, Zongjie , Li, Nian-Wu et al. Functional polymers in electrolyte optimization and interphase design for lithium metal anodes . | JOURNAL OF MATERIALS CHEMISTRY A , 2021 , 9 (23) , 13388-13401 .
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Introduction to materials chemistry at Xi'an Jiaotong University SCIE
期刊论文 | 2021 | MATERIALS CHEMISTRY FRONTIERS
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GB/T 7714 Dang, Dongfeng , Zhang, Yanfeng , Ding, Shujiang et al. Introduction to materials chemistry at Xi'an Jiaotong University [J]. | MATERIALS CHEMISTRY FRONTIERS , 2021 .
MLA Dang, Dongfeng et al. "Introduction to materials chemistry at Xi'an Jiaotong University" . | MATERIALS CHEMISTRY FRONTIERS (2021) .
APA Dang, Dongfeng , Zhang, Yanfeng , Ding, Shujiang , Zhang, Zhicheng . Introduction to materials chemistry at Xi'an Jiaotong University . | MATERIALS CHEMISTRY FRONTIERS , 2021 .
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Metal-organic-framework derived Co@CN modified horizontally aligned graphene oxide array as free-standing anode for lithium-ion batteries SCIE
期刊论文 | 2021 | JOURNAL OF MATERIALS CHEMISTRY A
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Graphene-based 2D materials have shown extraordinary promise in electrochemical energy storage owing to their high electrochemical activity, fast carrier mobility, and large electronic conductivity. However, the low specific capacity (<200 mA h g(-1)) and limited ion transport in thicker electrodes seriously obstruct their practical application. Here, we report the use of a metal-organic-framework derived Co@CN modified horizontally aligned graphene oxide (HAGO/Co@CN) array as a free-standing anode to address this problem and realize a stable cycling at high areal capacity (>5 mA h cm(-2)). The highly interpenetrating graphene oxide network in the HAGO/Co@CN electrode accelerates electronic transport. In addition, benefiting from the advanced layered architecture, the HAGO/Co@CN electrode exhibits excellent structural stability and thickness-independent electrochemical performance. By systematically adjusting the orientation of GO/Co@CN nanosheets inside the electrode, we optimized the electron/ion transmission to deliver high areal capacity and high-rate capability at high mass loading. More importantly, a designed full cell with a NCM622 cathode and a HAGO/Co@CN anode shows an ultrahigh capacity retention of >98% at 1C after 500 cycles with a commercial-level reversible capacity of 2.3 mA h cm(-2).

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GB/T 7714 Wang, Yong , Li, Jiawei , Li, Xinyang et al. Metal-organic-framework derived Co@CN modified horizontally aligned graphene oxide array as free-standing anode for lithium-ion batteries [J]. | JOURNAL OF MATERIALS CHEMISTRY A , 2021 .
MLA Wang, Yong et al. "Metal-organic-framework derived Co@CN modified horizontally aligned graphene oxide array as free-standing anode for lithium-ion batteries" . | JOURNAL OF MATERIALS CHEMISTRY A (2021) .
APA Wang, Yong , Li, Jiawei , Li, Xinyang , Jin, Hong , Ali, Wajid , Song, Zhongxiao et al. Metal-organic-framework derived Co@CN modified horizontally aligned graphene oxide array as free-standing anode for lithium-ion batteries . | JOURNAL OF MATERIALS CHEMISTRY A , 2021 .
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Development of solid electrolytes in Zn-air and Al-air batteries: From material selection to performance improvement strategies EI SCIE
期刊论文 | 2021 , 9 (8) , 4415-4453 | Journal of Materials Chemistry A
WoS CC Cited Count: 6
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Abstract :

Aqueous-based Zn-air and Al-air batteries are considered to be promising post-lithium energy storage technologies owing to their safety, environmental friendliness, affordability, and high energy density. Nevertheless, traditional liquid Zn-air and Al-air batteries have problems such as volatilization and leakage, as well as the realization of miniaturized, portable, and wearable electronic devices. The practice of optimizing the battery structure by replacing the flowing electrolyte with a solid type has emerged and made significant progress in the past ten years. Herein, this review provides a guiding and comprehensive summary of the basic understanding and manufacturing ideas of the solid electrolyte for Zn-air and Al-air batteries. First, two types of alkaline solid electrolytes are distinguished, including alkaline anion exchange membranes (AAEMs) and gel polymer electrolytes (GPEs). Then, three sorts of major framework materials (i.e., artificial organic polymer, biomass materials, and inorganic materials) are reviewed and discussed. Most importantly, the latest research progress and improvement strategies to enhance the electrolyte membrane performances involving conductivity, mechanical properties, and electrochemical stability are also highlighted. Finally, challenges and prospects for the future development of alkaline solid electrolytes are emphasized. © The Royal Society of Chemistry 2021.

Keyword :

Polyelectrolytes Energy storage Environmental technology Lithium batteries Solid electrolytes Ion exchange membranes Solid-State Batteries Zinc air batteries Potentiometric sensors

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GB/T 7714 Wei, Yuantao , Shi, Yuchuan , Chen, Ye et al. Development of solid electrolytes in Zn-air and Al-air batteries: From material selection to performance improvement strategies [J]. | Journal of Materials Chemistry A , 2021 , 9 (8) : 4415-4453 .
MLA Wei, Yuantao et al. "Development of solid electrolytes in Zn-air and Al-air batteries: From material selection to performance improvement strategies" . | Journal of Materials Chemistry A 9 . 8 (2021) : 4415-4453 .
APA Wei, Yuantao , Shi, Yuchuan , Chen, Ye , Xiao, Chunhui , Ding, Shujiang . Development of solid electrolytes in Zn-air and Al-air batteries: From material selection to performance improvement strategies . | Journal of Materials Chemistry A , 2021 , 9 (8) , 4415-4453 .
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Coordination-driven hierarchically structured composites with N-CNTs-grafted graphene-confined ultra-small Co nanoparticles as effective oxygen electrocatalyst in rechargeable Zn-air battery EI SCIE
期刊论文 | 2021 , 47 (21) , 30091-30098 | CERAMICS INTERNATIONAL
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Rational design and fabrication of optimal reversible oxygen electrocatalysts are essential yet still remain great challenges for rechargeable metal-air batteries. Supramolecular coordination polymer-derived strategy for transition metal-nitrogen-doped carbon (M-N/C, M = Co, Fe, etc.) composites catalysts has been deemed promising in preserving rich M-Nx coordination modes and enhancing their intrinsic activities. However, the closely packed and nonporous characteristics of coordination polymer usually lead to the serious agglomeration of metallic nanoparticles and lack of porous channels after pyrolysis, impacting the abundance and accessibility of the exposed active sites during electrocatalysis. In this work, we put forward a new tactic to obtain ultra-small Co nanoparticles confined within N-doped carbon nanotubes grafted to reduced graphene oxide (Co/NCNTs@rGO) through a coordination-driven in situ self-assembly approach followed by pyrolysis. The integration of high intrinsic activity, enhanced conductivity, populated and richly exposed active species throughout the laminated hierarchical composite structure endows Co/N-CNTs@rGO with appealing bifunctional oxygen electrocatalysis properties. Impressively, Co/N-CNTs@rGO was subsequently fabricated as the air electrode in a rechargeable Zn-air battery, and the device achieves a maximum power density of 168 mW cm-2, a large specific capacity of 765 mA h g-1 while maintaining satisfying cycling durability. This work may provide valuable insights in regulating the coordination polymer derivatives and bring new perspectives for future design of promising composites electrocatalysts for electrochemical conversions and energy storage technologies.

Keyword :

Oxygen electrocatalysis Rechargeable Zn-air battery Self-assembly Coordination polymer Graphene oxide

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GB/T 7714 Shen, Mengxia , Gao, Kun , Duan, Chao et al. Coordination-driven hierarchically structured composites with N-CNTs-grafted graphene-confined ultra-small Co nanoparticles as effective oxygen electrocatalyst in rechargeable Zn-air battery [J]. | CERAMICS INTERNATIONAL , 2021 , 47 (21) : 30091-30098 .
MLA Shen, Mengxia et al. "Coordination-driven hierarchically structured composites with N-CNTs-grafted graphene-confined ultra-small Co nanoparticles as effective oxygen electrocatalyst in rechargeable Zn-air battery" . | CERAMICS INTERNATIONAL 47 . 21 (2021) : 30091-30098 .
APA Shen, Mengxia , Gao, Kun , Duan, Chao , Hu, Weihang , Ding, Shujiang , Yang, Guihua et al. Coordination-driven hierarchically structured composites with N-CNTs-grafted graphene-confined ultra-small Co nanoparticles as effective oxygen electrocatalyst in rechargeable Zn-air battery . | CERAMICS INTERNATIONAL , 2021 , 47 (21) , 30091-30098 .
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Partial Hydrolysis of Cyanide Coordination Polymers Induced by a Pillar Ligand with Optimized Electrochemical Kinetics for Rechargeable Alkaline Batteries SCIE PubMed
期刊论文 | 2021 | CHEMISTRY-A EUROPEAN JOURNAL
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Coordination polymers are promising cathode materials for rechargeable alkaline batteries. Therefore, the precise modulation of these cathodes by chemical structure and in-depth structure transform study is necessary. Here, two model coordination polymer battery cathodes were designed to demonstrate the dynamic structure-performance relationship. We studied the electrochemical performance of two kinds of nickel-based coordination polymer, comprising a planar 2D cyanide-bridged network and a 3D cyanide-bridged network pillared by pyrazine molecules. The 2D coordination polymer showed serious voltage degradation with poor rate capability, whereas the 3D coordination polymer exhibited stable voltage output coupled with high rate at various current densities. The investigation revealed the underlining relationship of plateau voltage degradation and hydrolysis process of electrodes. It was revealed that the pyrazine pillar molecules in the 3D coordination polymer could suppress the hydrolysis and lead to the in situ formation of partially hydrolyzed structure with excellent electrochemical kinetics; this exhibited obvious smaller peak separation (27 mV compared with 149 mV) and hence an almost twofold increase in capacity retention (31.9 to 50.0 %) and energy density retention (18.2 to 35.9 %) at 10 A g(-1).

Keyword :

rechargeable alkaline batteries coordination polymers metal-organic frameworks hydrolysis

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GB/T 7714 Feng, Jie , Zhao, Hongyang , Ali, Wajid et al. Partial Hydrolysis of Cyanide Coordination Polymers Induced by a Pillar Ligand with Optimized Electrochemical Kinetics for Rechargeable Alkaline Batteries [J]. | CHEMISTRY-A EUROPEAN JOURNAL , 2021 .
MLA Feng, Jie et al. "Partial Hydrolysis of Cyanide Coordination Polymers Induced by a Pillar Ligand with Optimized Electrochemical Kinetics for Rechargeable Alkaline Batteries" . | CHEMISTRY-A EUROPEAN JOURNAL (2021) .
APA Feng, Jie , Zhao, Hongyang , Ali, Wajid , Yin, Dandan , Li, Xinyang , Khan, Nawab Ali et al. Partial Hydrolysis of Cyanide Coordination Polymers Induced by a Pillar Ligand with Optimized Electrochemical Kinetics for Rechargeable Alkaline Batteries . | CHEMISTRY-A EUROPEAN JOURNAL , 2021 .
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