ORCID Profile
0000-0003-3489-7672
Current Organisation
Shanghai University
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Publisher: American Chemical Society (ACS)
Date: 05-10-2021
Publisher: Elsevier BV
Date: 03-2020
Publisher: Wiley
Date: 18-01-2023
Abstract: Transition metal phosphides (MP x ) with high theoretical capacities and low cost are regarded as the most promising anodes for lithium‐ion batteries (LIBs), but the large volume variations and sluggish kinetics largely restrict their development. To solve the above challenges, herein a generic but effective method is proposed to encapsulate various monodispersed MP x into flexible carbon multi‐chambers (MP x @NC, MNi, Fe, Co, and Cu, etc.) with pre‐reserved voids, working as anodes for LIBs and markedly boosting the Li + storage performance. Ni 2 P@NC, one representative ex le of MP x @NC anode, shows high reversible capacity (613 mAh g −1 , 200 cycles at 0.2 A g −1 ), and superior cycle stability (475 mAh g −1 , 800 cycles at 2 A g −1 ). Full cell coupled with LiFePO 4 displays a high reversible capacity (150.1 mAh g −1 at 0.1 A g −1 ) with stable cycling performance. In situ X‐ray diffraction and transmission electron microscope techniques confirm the reversible conversion reaction mechanism and robust structural integrity, accounting for enhanced rate and cycling performance. Theoretical calculations reveal the synergistic effect between MP x and carbon shells, which can significantly promote electron transfer and reduce diffusion energy barriers, paving ways to design high‐energy‐density materials for energy storage systems.
Publisher: Royal Society of Chemistry (RSC)
Date: 2006
DOI: 10.1039/B609971H
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C1NR10642B
Abstract: Graphene and carbon nanotubes are intriguing alternative anode materials for lithium ion batteries. The prevention of graphene restacking and facilitation of lithium diffusion into CNTs with large aspect ratio are highly desirable for the performance enhancements including capacity, cycliability and rate capability. In this work, we demonstrated that a multilayered graphene-CNT hybrid nanostructure was able to hold such merits. GNS were separated and stabilized by CNTs grown in situ on GNS surface. The length of CNTs was found to be a key factor to the electrochemical performances. The GNS-CNT composite with the shortest CNT decoration displayed highly reversible capacities of 573 mAh g(-1) at a small current of 0.2C and 520 mAh g(-1) at a large current of 2C. The growth and lithium storage mechanism for graphene-CNT composite was also proposed.
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D0RA08503K
Abstract: Ultra-small Fe 3 O 4 nanodots encapsulated in layered carbon nanosheet nanocomposites were synthesized, showing fast reaction kinetics, high conductivity, and robust stability.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0TA04798H
Abstract: A feasible strategy was explored to achieve atomically dispersed Fe–N x sites anchoring on porous carbon hybrid (Fe-SA/PC). The catalyst possessed excellent catalytic activity, high stability and methanol-tolerance toward ORR in alkaline solution.
Publisher: American Chemical Society (ACS)
Date: 12-10-2005
DOI: 10.1021/JP0541967
Abstract: In this study, ordered macroporous carbon with a three-dimensional (3D) interconnected pore structure and a graphitic pore wall was prepared by chemical vapor deposition (CVD) of benzene using inverse silica opal as the template. Field-emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Raman spectrometry, nitrogen adsorption, and thermogravimetric analysis techniques were used to characterize the carbon s les. The electrochemical properties of the carbon materials as a carbon-based anode for lithium-ion batteries and as a Pt catalyst support for room-temperature methanol electrochemical oxidation were examined. It was observed that the CVD method is a simple route to fabrication of desired carbon nanostructures, affording a carbon with graphitic pore walls and uniform pores. The graphitic nature of the carbon enhances the rate performance and cyclability in lithium-ion batteries. The specific capacity was found to be further improved when SnO(2) nanoparticles were supported on the carbon. The specific activity of Pt catalyst supported on the carbon materials for room-temperature methanol electrochemical oxidation was observed to be higher than that of a commercial Pt catalyst (E-TEK).
Publisher: American Chemical Society (ACS)
Date: 10-02-2006
DOI: 10.1021/CM052219O
Publisher: Elsevier BV
Date: 10-2012
Publisher: Elsevier BV
Date: 12-2019
Publisher: Wiley
Date: 22-05-2017
Abstract: Metal phosphides are a new class of potential high-capacity anodes for lithium ion batteries, but their short cycle life is the critical problem to hinder its practical application. A unique ball-cactus-like microsphere of carbon coated NiP
Publisher: Wiley
Date: 09-05-2019
Publisher: Royal Society of Chemistry (RSC)
Date: 2010
DOI: 10.1039/C0JM01573C
Publisher: Wiley
Date: 18-03-2020
Publisher: Elsevier BV
Date: 08-2022
Publisher: Springer Science and Business Media LLC
Date: 24-07-2019
DOI: 10.1038/S41557-019-0298-6
Abstract: The precise control of the morphology of inorganic materials during their synthesis is important yet challenging. Here we report that the morphology of a wide range of inorganic materials, grown by rapid precipitation from a metal cation solution, can be tuned during their crystallization from one- to three-dimensional (1D to 3D) structures without the need for capping agents or templates. This control is achieved by adjusting the balance between the electrolytic dissociation (α) of the reactants and the supersaturation (S) of the solutions. Low-α, weak electrolytes promoted the growth of anisotropic (1D and 2D) s les, with 1D materials favoured in particular at low S. In contrast, isotropic 3D polyhedral structures could only be prepared in the presence of strong electrolyte reactants (α ≈ 1) with low S. Using this strategy, a wide range of materials were prepared, including metal oxides, hydroxides, carbonates, molybdates, oxalates, phosphates, fluorides and iodate with a variety of morphologies.
Publisher: Elsevier BV
Date: 10-2010
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1NJ00610J
Abstract: COF-derived nitrogen-doped porous carbon nanosheets with S loading achieve high capacities and good long-cycling performance for lithium–sulfur batteries.
Publisher: American Chemical Society (ACS)
Date: 03-03-2022
Publisher: American Chemical Society (ACS)
Date: 16-06-2022
Publisher: Wiley
Date: 30-07-2020
Publisher: Elsevier BV
Date: 2007
Publisher: The Chemical Society of Japan
Date: 15-08-2020
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D3MH00587A
Abstract: Densely populated tiny RuO 2 crystallites supported by hierarchically porous carbon are constructed and exhibit efficient bifunctional electrocatalytic performances for acidic water splitting.
Publisher: Elsevier BV
Date: 03-2017
Publisher: Wiley
Date: 09-01-2019
Abstract: Low-cost layered oxides free of Ni and Co are considered to be the most promising cathode materials for future sodium-ion batteries. Biphasic Na
Publisher: Springer Science and Business Media LLC
Date: 29-09-2016
Publisher: MDPI AG
Date: 06-06-2023
Abstract: Metal-organic coordination compounds (MCCs) have received a lot of attention as anodes for lithium-ion batteries (LIBs) due to their abundant structural configuration, tunable morphology, high surface area, and low cost, but the lithium storage mechanism of MCCs is still a mystery. Herein, we synthesized a kind of nickel-based coordination compound (marked as Ni-PP-x, x = 1, 2, or 3) with tunable morphologies and different solvent ratios via a microwave irradiation solvothermal method and then applied them as anodes for LIBs. Among them, the Ni-PP-2 electrode, with a hollow and urchin-like structure, showed the longest lifespan and maintained a high capacity of 713 mAh g−1 at 2.0 A g−1 after 800 cycles. Measured by ex situ X-ray photoelectron spectroscopy (XPS) and ex situ Fourier transform infrared spectroscopy (FT-IR), the Ni-PP-2 electrode was confirmed by a redox reaction mechanism of Li+ cations with a benzene ring and O-Ni2+/O-Ni0 coordination bonds, and the cyclic voltammetry curves have exhibited a capacitive dominated lithium storage behavior. This work provides a new type of Ni-based coordination compound and an in-depth understanding of their lithium storage mechanism, paving the way for the application of MCC compounds in the future.
Publisher: Wiley
Date: 10-07-2021
Abstract: 2D MXene-based nanomaterials have attracted tremendous attention because of their unique physical/chemical properties and wide range of applications in energy storage, catalysis, electronics, optoelectronics, and photonics. However, MXenes and their derivatives have many inherent limitations in terms of energy storage applications. In order to further improve their performance for practical application, the nanoengineering of these 2D materials is extensively investigated. In this Review, the latest research and progress on 2D MXene-based nanostructures is introduced and discussed, focusing on their preparation methods, properties, and applications for energy storage such as lithium-ion batteries, sodium-ion batteries, lithium-sulfur batteries, and supercapacitors. Finally, the critical challenges and perspectives required to be addressed for the future development of these 2D MXene-based materials for energy storage applications are presented.
Publisher: Wiley
Date: 12-05-2017
Publisher: American Chemical Society (ACS)
Date: 03-2008
DOI: 10.1021/IE071337D
Publisher: American Chemical Society (ACS)
Date: 06-12-2019
Publisher: Wiley
Date: 10-04-2021
Abstract: Silicon has been regarded as an attractive high‐capacity anode material for next‐generation lithium‐ion batteries (LIBs). However, Si anodes suffer from huge volume variation during cycling, which poses a critical challenge for stable battery operation. Compared with Si, Si suboxide (SiO x ) is one of the most promising candidates for high‐energy‐density LIBs because of its alleviated swelling and highly stable cycling performance. Whereas, the poor electronic conductivity and low (initial) Coulombic efficiency of SiO x anodes severely hinder practical applications for LIBs. Herein, for the first time, these issues are successfully solved through rationally designing hollow‐structured SiO x @carbon nanotubes (CNTs)/C architectures with graphitic carbon coatings and in situ growth of CNTs. When applied as anodes in LIBs, the SiO x @CNTs/C anodes exhibit high reversible capacity, high initial Coulombic efficiency (88%), outstanding cycling performance, and extraordinary mechanical strength during the calendaring process (200 MPa). This work paves the way for developing SiO x ‐based anode materials for high‐energy‐density LIBs.
Publisher: American Chemical Society (ACS)
Date: 07-05-2021
Publisher: Wiley
Date: 27-01-2021
Publisher: Elsevier BV
Date: 02-2022
Publisher: Wiley
Date: 07-10-2021
Abstract: Organic electroactive compounds hold great potential to act as cathode material for organic sodium‐ion batteries (OSIBs) because of their environmental friendliness, sustainability, and high theoretical capacity. Although some organic electrodes have been developed with good performance, their practical application is still obstructed by some inherent drawbacks such as low conductivity and solubility in organic electrolytes. In addition, research on OSIBs has been mainly focused on the performance of electrodes on the material level and neglected the trade‐off relationship between the high redox potentials and specific capacities. Almost all organic cathodes used in OSIBs lack the ability to be charged first in half‐cells because of the absence of detachable sodium ions, resulting in low attractiveness when assembling full cells with hard carbon as anode. Here, this review presents several existing reaction mechanisms in OSIBs and designs of organic cathode materials. Furthermore, strategies are proposed in order to provide guidelines for improving their performance according to some critical parameters (output voltage, specific capacity, and cycle life) in potential practical OSIBs, and some accounts of organic materials assembled in full cells are summarized. Finally, the challenges and prospects of organic electrodes for OSIBs are also discussed in this review.
Publisher: Elsevier BV
Date: 05-2020
Publisher: American Chemical Society (ACS)
Date: 24-12-2020
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2TA04581H
Abstract: The graphene quantum dots/CNT stabilized few-layered hyper-conjugated covalent organic nanosheet is synthesized and exhibits excellent electrochemical performance for lithium-organic batteries.
No related grants have been discovered for Yong Wang.