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10篇 您的检索式:作者名="Jingxia Qiu"
    题名 作者 年代 出处 被引量
1Microporous bamboo biochar for lithium-sulfur batteries显示文摘简单、便宜、可伸缩、环境地友好,多微孔的生物资源 biochars 在锂硫(Li-S ) 为申请一直在吸引热心注意电池。此处,多孔的竹子 biochar 经由创造多微孔的结构的一个 KOH/annealing 过程被激活,增加表面区域并且提高电子电导率。对待的样品被用来包含硫准备多微孔的竹子碳硫(英国计算机学会) 用作为 Li-S 电池的阴极的 nanocomposite 第一次。有 50 wt.% 硫内容的英国计算机学会 nanocomposite 交付 1,295 妈的一个高起始的能力 ???  ??Xingxing Gu Yazhou Wang Chao Lai Jingxia Qiu Sheng Li Yanglong Hou Wayde Martens Nasir Mahmood Shanqing Zhang 2015Nano Research2015,8,1:11
2Ge nanoparticles uniformly immobilized on 3D interconnected porous graphene frameworks as anodes for high-performance lithium-ion batteries显示文摘Germanium(Ge), an alloy-type anode material for lithium-ion batteries(LIBs), possesses many advantages such as high theoretical capacity and decent electrical conductivity. Nevertheless, its application is restricted by tremendous volume variation and tardy reaction kinetic during discharge/charge process.In this paper, the Ge/3DPG composites with Ge nanoparticles uniformly dispersed in 3D interconnected porous graphene(3DPG) skeleton are successfully prepared using a template-assisted in-situ reduction method. The unique 3D interconnected porous graphene can not only enhance the electronic conductivity and reaction kinetics of the materials, but also provide sufficient buffer space to effectively mitigate the volume expansion during cycling and strengthen the structural integrity. Moreover, the small-sized Ge nanoparticles in close conjunction with the 3D graphene can boost the surface-controlled reaction of the electrode, which contributes to a fast charge–discharge rate capability. The Ge/3DPG composite with optimized Ge/graphene mass ratio delivers high reversible specific capacity(1102 mAh g^(-1) after 100 cycles at 0.2 C), outstanding rate capability(494 mAh g^(-1) at 5 C), and admirable cycling stability(85.3% of capacity retention after 250 cycles at 0.5 C). This work provides a significant inspiration for the design and fabrication of advanced Ge-based anode materials for next-generation highperformance LIBs.Yao Chen Yuming Zou Xiaoping Shen Jingxia Qiu Jiabiao Lian Jinrui Pu Sheng Li Fei-Hu Du Shang-Qi Li Zhenyuan Ji Aihua Yuan 2022Journal of Energy Chemistry2022,31,6:3
3Hydrogenation of nanostructured semiconductors for energy conversion and storage显示文摘Nanostructured semiconductors have been researched intensively for energy conversion and storage applications in recent decades.Despite of tremendous findings and achievements,the performance of the devices resulted from the nanomaterials in terms of energy conversion efficiency and storage capacity needs further improvement to become economically viable for subsequent commercialization.Hydrogenation is a simple,efficient,and cost-effective way for tailoring the electronic and morphological properties of the nanostructured materials.This work reviews a series of hydrogenated nanostructured materials was produced by the hydrogenation of a wide range of nanomaterials.These materials with improved inherent conductivity and changed characteristic lattice structure possess much enhanced performance for energy conversion application,e.g.,photoelectrocatalytic production of hydrogen,and energy storage applications,e.g.,lithium-ion batteries and supercapacitors.The hydrogenation mechanisms as well as resultant properties responsible for the efficiency improvement are explored in details.This work provides guidance for researchers to use the hydrogenation technology to design functional materials.Jingxia Qiu Jacob Dawood Shanqing Zhang 2014Chinese Science Bulletin2014,59,18:2
4Interface Engineering of CoS/CoO@N‑Doped Graphene Nanocomposite for High‑Performance Rechargeable Zn–Air Batteries显示文摘Low cost and green fabrication of high-performance electrocatalysts with earth-abundant resources for oxygen reduction reaction(ORR)and oxygen evolution reaction(OER)are crucial for the large-scale application of rechargeable Zn-air batteries(ZABs).In this work,our density functional theory calculations on the electrocatalyst suggest that the rational construction of interfacial structure can induce local charge redistribution,improve the electronic conductivity and enhance the catalyst stability.In order to realize such a structure,we spatially immobilize heterogeneous CoS/CoO nanocrystals onto N-doped graphene to synthesize a bifunctional electrocatalyst(CoS/CoO@NGNs).The optimization of the composition,interfacial structure and conductivity of the electrocatalyst is conducted to achieve bifunctional catalytic activity and deliver outstanding efficiency and stability for both ORR and OER.The aqueous ZAB with the as-prepared CoS/CoO@NGNs cathode displays a high maximum power density of 137.8 mW cm^−2,a specific capacity of 723.9 mAh g^−1 and excellent cycling stability(continuous operating for 100 h)with a high round-trip efficiency.In addition,the assembled quasi-solid-state ZAB also exhibits outstanding mechanical flexibility besides high battery performances,showing great potential for applications in flexible and wearable electronic devices.Yuhui Tian Li Xu Meng Li Ding Yuan Xianhu Liu Junchao Qian Yuhai Dou Jingxia Qiu Shanqing Zhang 2021Nano-Micro Letters2021,13,1:2
5α-Fe_2O_3 nanoplates with superior electrochemical performance for lithium-ion batteries显示文摘On account of the high theoretical capacity, high corrosion resistance, environmental benignity, abundant availability and low cost, the research on a-Fe_2O_3 has been gradually fastened on as promising anodes materials toward lithium-ion batteries(LIBs). A high-performance anode for LIBs based on α-Fe_2O_3 nanoplates have been selectively prepared. The α-Fe_2O_3 nanoplates can be synthesized with iron ionbased ionic liquid as iron source and template. The α-Fe_2O_3 nanoplates as the anode of LIBs can display high capacity of around1950 mAh g^(-1) at 0.5 A g^(-1) which have exceeded the theoretical capacity of α-Fe_2O_3. On account of unique nanoplate structures and gum arabic as binder, the α-Fe_2O_3 nanoplates also exhibit high rate capability and excellent cycling performance.Li Xu Yuhui Tian Tiefeng Liu Henan Li Jingxia Qiu Sheng Li Huaming Li Shouqi Yuan Shanqing Zhang 2018Green Energy & Environment2018,3,2:1
6Free standing and bendable carbon nanotubes/TiO2 nanofibres composite electrodes for flexible lithium ion batteries显示文摘Peng Zhang Jingxia Qiu Zhanfeng Zheng 2013Electrochimica Acta2013,104,1:1
7In situ XRD and electrochemical investigation on a new intercalation-type anode for high-rate lithium ion capacitor显示文摘A new intercalation-type anode material is reported herein to improve the lithium storage kinetics for high-rate lithium ion capacitors.The crystal structure of orthorhombic NaNbO3 indicates two possible tunnels for lithium ions insertion into NaNbO3 host along the<101>and<141>directions.Moreover,in situ XRD is conducted to investigate the lithium storage mechanism and structural evolution of the NaNb O_(3) anode,demonstrating its intercalation behavior through(101)and(141)planes.Furthermore,the rGO nanosheets are introduced to facilitate the charge transfer,which also effectively prevent the aggregation of NaNbO3 nanocubes.As expected,the NaNbO_(3)/rGO nanocomposites possess remarkable reversible capacity(465 mA h g^(-1) at 0.1 A g^(-1)),superior rate capability(325 mA h g^(-1) at 1.0 A g^(-1))and cycling stability,attributed to their synergistic effect and high Li+diffusion coefficient DLi[D(NaNbO_(3)/rGO)/D(NaNbO_(3))≈31.54].Remarkably,the NaNbO3/rGO-based LIC delivers a high energy density of 166.7 W h kg^(-1) at 112.4 W kg^(-1) and remains 24.1 W h kg^(-1) at an ultrahigh power density of26621.2 W kg^(-1),with an outstanding cycling durability(90%retention over 3000 cycles at 1.0 A g^(-1)).This study provides new insights on novel intercalation-type anode material to enrich the materials system of LICs.Bobo Zou Ting Wang Shengyuan Li Rong Kang Guochun Li Sherif AEl-Khodary Dickon HLNg Xianhu Liu Jingxia Qiu Yan Zhao Jiabiao Lian Huaming Li 2021Journal of Energy Chemistry2021,30,6:1
8Correction to:Interface Engineering of CoS/CoO@N-Doped Graphene Nanocomposite for High-Performance Rechargeable Zn-Air Batteries显示文摘In the original publication,the label text“Pt/C”in Fig.5 should be“Pt/C+IrO_(2)”.In Fig.5d,the X-axis label“Poten-tial(V vs.RHE)”should be replaced with“Specific capacity(mAh g^(−1))”.In Fig.5e,the Y-axis label“Potential(V vs.RHE)”should be replaced with“Voltage(V)”.In Fig.5g,the X-axis label“Time(h)”should be replaced with“Cycle number(n)”.The Y-axis label“ΔE(V vs.RHE)”should be replaced with“Voltage(V)”.The number“1.4”and“1.6”should be replaced with 1.6 and 2.0,respectively.The cor-responding data analysis and conclusions in the manuscript are not affected and thus not to be changed.The correct Fig.5 is provided in this correction.Yuhui Tian Li Xu Meng Li Ding Yuan Xianhu Liu Junchao Qian Yuhai Dou Jingxia Qiu Shanqing Zhang 2021Nano-Micro Letters2021,13,6:1
9Recent applications of TiO2 nanomaterials in chemical sensing in aqueous media 显示文摘Qiu Jingxia Zhang Shanqing Zhao Huijun 2011Sensors and Actuators B: Chemical2011,160,:1
10Oxygen functional groups modified amorphous hollow carbon bowls for pseudocapacitive Zn-ion storage显示文摘Carbon is a promising capacitive electrode material for Zn-ion hybrid supercapacitors(ZHSCs),as it is low-cost,environmentally friendly,controllable and adjustable.By now,achieving both high energy and high power with carbon electrodes is still challenging,limited by their intrinsic properties.In this work,we have designed and presented an amorphous hollow carbon bowl material with surface chemical modifications of oxygen groups to figure out these concerns.The preparation of bowl-like structures and the storage behavior between Zn^(2+)and oxygen functional groups have also been discussed.With the contributions from its unique hollow structure and surface functional groups,it can significantly enhance the electrode pseudocapacitance and the entire electrochemical performance.Gongxun Yu Fenghui Yang Xu Han Qiongyao Song Jiangtao Zheng Ying Qi Tianming Chen Qian Shen Jingxia Qiu Sheng Li 2023Chinese Chemical Letters2023,34,12:0
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