|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Trithiocyanuric acid derived g-C3N4 for anchoring the polysulfide in Li-S batteries application显示文摘Lithium-sulfur (Li-S) batteries have great potential as an electrochemical energy storage system because of the high theoretical energy density and acceptable cost of financial and environment.However,the shuttle effect leads to severe capacity fading and low coulombic efficiency.Here,graphitic carbon nitride(g-C3N4) is designed and prepared via a feasible and simple method from trithiocyanuric acid (TTCA) to anchor the polysulfides and suppress the shuttle effect.The obtained g-C3N4 exhibits strong chemical interaction with polysulfides due to its high N-doping of 56.87 at%,which is beneficial to improve the cycling stability of Li-S batteries.Moreover,the novel porous framework and high specific surface area of g-C3N4 also provide fast ion transport and broad reaction interface of sulfur cathode,facilitating high capacity output and superior rate performance of Li-S batteries.As a result,Li-S batteries assembled with g-C3N4 can achieve high discharge capacity of 1200 mAh/g at 0.2 C and over 800 mAh/g is remained after 100 cycles with a coulombic efficiency more than 99.5%.When the C-rate rises to 5 C,the reversible capacity of Li-S batteries can still maintain at 607mAh/g. | Ziyang Jia Hongzhang Zhang Ying Yu Yuqing Chen Jingwang Yan Xianfeng Li Huamin Zhang | 2020 | Journal of Energy Chemistry2020，29，4： | 4 |
| 2 | Effect of the pore length and orientation upon the electrochemical capacitive performance of ordered mesoporous carbons显示文摘By utilizing hard template method to adjust the mesopore length, and alkali activation to generate micro pores, two hierarchical porous carbons(HPCs) were prepared. With controlling of their mesopore length and the activation conditions, the complex system composed by HPCs and electrolyte was simplified and the effect of mesopore length on the performance of HPCs as electrodes in supercapacitors was investi gated. It is found that with the mesopore length getting smaller, the ordered area gets smaller and th aggregation occurs, which is caused by the high surface energy of small grains. HPC with long pore(HPCL) exhibits a donut-like morphology with well-defined ordered mesopores and a regular orientation while in HPC with short pores(HPCS), short mesopores are only orderly distributed in small regions Longer ordered channels form unobstructed ways for ions transport in the particles while shorter chan nels, only orderly distributed in small areas, results in blocked paths, which may hinder the electrolyt ions transport. Due to the unobstructed structure, HPCL exhibits good rate capability with a capacitanc retention rate over 86% as current density increasing from 50 m A/g to 1000 m A/g. The specific capaci tance of HPCL derived from the cyclic voltammetry test at 10 m V/s is up to 201.72 F/g, while the specifi capacitance of HPCS is only 193.65 F/g. | Anran Huang Jingwang Yan Hongzhang Zhang Xianfeng Li Huamin Zhang | 2017 | Journal of Energy Chemistry2017，26，1： | 2 |
| 3 | Synthesis and electrochemical performance of heteroatom-incor- porated ordered mesoporous carbons 显示文摘 | ZHAO Xiaochen WANG Aiqin YAN Jingwang | 2010 | Chem Mater2010，22，19： | 1 |
| 4 | Synthesis and electrochemical performance of heteroatom-incorporated or- dered mesoporous carbons显示文摘 | Xiaochen Zhao Aiqin Wang Jingwang Yan | 2010 | Chem Mater2010，22，： | 1 |
| 5 | New insights into the formation of silicon-oxygen layer on lithium metal anode via in situ reaction with tetraethoxysilane显示文摘Lithium metal-based secondary batteries are very promising for next generation power battery due to their high energy density.However,lithium anodes suffer from poor electrochemical reversibility in organic electrolytes due to Li dendrites and instability of the solid electrolyte interphase.Recent research demonstrated that the problem can be alleviated via tetraethoxysilane(TEOS)treated lithium metal to form a silicon oxide layer on the lithium surface,however,its reaction mechanism is controversial.Herein,we deeply explore the reaction mechanism between TEOS and Li and propose:Fresh Li can directly react with TEOS even though no lithium hydroxide exists on the lithium surface,and the participation of water will accelerate the reaction process.Moreover,it was found that the silicon oxide layer can promote the uniform deposition of lithium ions by providing lithiophilic nucleation sites,thereby achieving a long cycle life of Li metal batteries. | Yang Luo Tianyu Li Hongzhang Zhang Ying Yu Arshad Hussain Jingwang Yan Huamin Zhang Xianfeng Li | 2021 | Journal of Energy Chemistry2021，30，5： | 1 |
| 6 | Electrochemical reduction of oxygen on a strontium doped lanthanum manganite electrode显示文摘 | Jiang Yi Wang Shizhong Zhang Yahong Yan Jingwang Li Wenzhao | 1998 | Solid State Ionics1998，110，： | 1 |
| 7 | A novel 3-phenylpropylamine intercalated molecular bronze with ultrahigh layer spacing as a high-rate and stable cathode for aqueous zinc-ion batteries显示文摘Rechargeable aqueous zinc-ion batteries(AZIBs)have gained increasing attention owing to their low cost and high safety.Although hydrated vanadium oxides exhibit rich redox chemistry and open layer architecture,the insertion of multivalent Zn2+during cycling inevitably leads to host collapse and severe vanadium dissolution.Accordingly,various ions and conducting polymers have been introduced into the interlayer to produce vanadium bronzes with a robust crystal structure.However,these pre-intercalated vanadium bronzes demonstrate limited improvement and still face the challenge of metal ion displacement and confusing reaction mechanisms.Herein,we report a novel molecular bronze with intercalated 3-phenylpropylamine for use as an AZIB cathode,which produces an ultrahigh interlayer of 18.0Å.The cathode delivered an improved capacity of 420 mAh g^(−1)at 0.1 A g^(−1),an impressive rate capability of 158 mAh g^(−1)at 35 A g^(−1),and an outstanding lifespan with a capacity retention of 94%over 1200 cycles at 2A g^(−1).Furthermore,the reaction mechanism of H+/Zn2+co-insertion was investigated in detail.This work proves that this strategy is universal for vanadium oxide bronzes and opens a new avenue for the fabrication of novel molecular bronzes as advanced AZIB cathodes. | Rui Li Huamin Zhang Jingwang Yan Qiong Zheng Xianfeng Li | 2021 | Fundamental Research2021，1，4： | 1 |
| 8 | Monitoring the in vivo siRNA release from lipid nanoparticles based on the fluorescence resonance energy transfer principle显示文摘The siRNA-loaded lipid nanoparticles have attracted much attention due to its significant gene silencing effect and successful marketization.However,the in vivo distribution and release of siRNA still cannot be effectively monitored.In this study,based on the fluorescence resonance energy transfer(FRET)principle,a fluorescence dye Cy5-modified survivin siRNA was conjugated to nanogolds(Au-DR-siRNA),which were then wrapped with lipid nanoparticles(LNPs)for monitoring the release behaviour of siRNA in vivo.The results showed that once Au-DR-siRNA was released from the LNPs and cleaved by the Dicer enzyme to produce free siRNA in cells,the fluorescence of Cy5 would change from quenched state to activated state,showing the location and time of siRNA release.Besides,the LNPs showed a significant antitumor effect by silencing the survivin gene and a CT imaging function superior to iohexol by nanogolds.Therefore,this work provided not only an effective method for monitoring the pharmacokinetic behaviour of LNP-based siRNA,but also a siRNA delivery system for treating and diagnosing tumors. | Lei Sun Jinfang Zhang Jing-e Zhou JingWang Zhehao Wang Shenggen Luo Yeying Wang Shulei Zhu Fan Yang Jie Tang Wei Lu Yiting Wang Lei Yu Zhiqiang Yan | 2023 | Asian Journal of Pharmaceutical Sciences2023，18，1： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员