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Laser assisted phase transformation of carbon-based transition metal oxide electrode for high-performance supercapacitor application

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Science China Chemistry 2025年

作者： Mingzhen Xiu Jianghong Zhang Yu Lu xun cao Kang Huang Siyu Zhu Bowei Zhang Yu Liang Chunwang Zhao Junsheng Wu Yizhong Huang School of Materials Science and Engineering Nanyang Technological University Energy Research Institute Interdisciplinary Graduate Programme Nanyang Technological University Institute of Sustainability for Chemicals Energy and Environment Agency for Science Technology and ResearchSingapore Institute of Advanced Materials and Technology University of Science and Technology Beijing School of Materials Science and Technology Shenyang University of Chemical Technology School of Materials Science and Hydrogen Energy Foshan University

Transitional metal oxides have a wide range of applications due to their superior *** enhanced performance of metal oxide relies on their desirable oxidation states,which is challenging to achieve and requires complex *** study demonstrates a facile strategy enabling rapid phase transformation of transition metal *** approach involves synthesis of a tetragonal Mn3O4/carbon cloth composite using the liquid plasma discharge deposition （LPDD） technique,followed by laser irradiation with the presence of ethylene glycol under an N2gas *** resulting face-centered cubic MnO/carbon cloth electrode exhibits an excellent capacitance of 1,125 F g-1at 2 A g-1,with remarkable capacitance retention of 95%after10,000 *** approach can be extended to other transition metals including Co,Cu,Cr,Fe,Ni,and *** simulations reveal the significance of ethylene glycol and the underlying mechanism associated with the phase transformation of transition metal *** present study offers a powerful technique for the phase transformation of transition metal oxide which can guide the development of new electrode materials with enhanced electrochemical properties for high-performance energy storage applications.

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Depth and Residual Images Based Rendering

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Chinese Journal of Electronics 2016年第1期25卷 131-138页

作者： DENG Xiangdong cao xun DAI Qionghai Academy of Broadcasting Planning School of Electronic Science and Engineering Nanjing University Department of Automation Tsinghua University Tsinghua National Laboratory for Information Science and Technology (TNList)

This paper proposes a novel representation method which is called Depth and residual images based representation(DRIBR) for virtual image rendering in 3D video. The proposed DRIBR is composed of three parts:a single view image from one particular viewpoint, its corresponding depth map as well as a residual image. The residual image is pre-calculated from the combination of the above two components plus an image taken from the other viewpoint. The proposed DRIBR achieves low data redundancy, and resolves the occlusion problem which is one of the most annoying artifacts during the rendering of virtual image in traditional Depth image based rendering(DIBR). This paper addresses details of DRIBR and virtual image rendering algorithms based on the proposed format. We test the DRIBR on various stereo datasets and the experimental results demonstrate that our method can achieve better performance on both subjective and objective quality assessment.

关键词： Depth map Residual image Depth image based representation(DIBR) Occlusion Multi-view video(MVV)

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The role of prior in image based 3D modeling： a survey

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Frontiers of Computer Science 2017年第2期11卷 175-191页

作者： Hao ZHU Yongming NIE Tao YUE xun cao Lab for Computational Imaging Technology and Engineering School of Electronic Science and Engineering Nanjing University Nanjing 210023 China

The prior knowledge is the significant supple- ment to image-based 3D modeling algorithms for refining the fragile consistency-based stereo. In this paper, we review the image-based 3D modeling problem according to prior cate- gories, i.e., classical priors and specific priors. The classical priors including smoothness, silhouette and illumination are well studied for improving the accuracy and robustness of the 3D reconstruction. In recent years, various specific priors which take advantage of Manhattan rule, geometry template and trained category features have been proposed to enhance the modeling performance. The advantages and limitations of both kinds of priors are discussed and evaluated in the paper. Finally, we discuss the trend and challenges of the prior studies in the future.

关键词： prior information consistency-based stereo,smoothness illumination silhouette specific prior

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Recent Advances in Computational Photography

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Chinese Journal of Electronics 2019年第1期28卷 1-5页

作者： DAI Qionghai WU Jiamin FAN Jingtao XU Feng cao xun Department of Automation Tsinghua University Beijing Key Laboratory of Multi-dimension & Multi-scale Computational Photography (MMCP) Tsinghua University School of Software Tsinghua University School of Electronic Science and Engineering Nanjing University

Traditional photography focuses on the optimization of lenses for a perfect imaging ***, with the great developments of computational resources and optical modulation devices, we can achieve more powerful imaging abilities with concise *** photography is such an emerging interdisciplinary field by incorporating computational strategy in traditional imaging system to break the limitations in various dimensions such as spectrum, time and space. Recent advances in different aspects have aroused great interests and introduced tremendous applications in biology, material science and computer vision.

关键词： Computational photography Gigapixel imaging Super-resolution imaging Compressive sensing Hyperspectral imaging

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Optical switching properties of Pd-Ni thin-film top-capped switchable mirrors

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Frontiers of Materials Science 2015年第3期9卷 227-233页

作者： Xiao-Li ZHANG Shan-Hu BAO xun cao Ping JIN State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences Dingxi Rd. 1295 Changning District Shanghai 200050 China Graduate School of Chinese Academy of Sciences Beijing 100049 China

Switchable mirrors based on magnesium-nickel alloy thin films capped with catalytic Pd-Ni alloy thin films were prepared by a DC magnetron sputtering method. Their composition, structure and surface morphology were studied by XPS, XRD and AFM. Herein, the optical switching properties and durability of the switchable mirrors were investigated by varying the Ni content in the Pd-Ni alloys. Comparing pure Pd catalyst with Pd-Ni top-capped switchable mirrors, the latter show better hydrogenation and dehydrogenation kinetics, and the speed of hydrogen desorption is obviously improved with increasing Ni content in the Pd-Ni alloy. The Pd-Ni capped switchable mirrors also have better optical switching durability. The catalytic Pd layer with the addition of Ni does not influence the transmittance （hydride state） and reflectance （metallic state） of the switchable mirrors. In addition, replacing Pd with Pd-Ni alloy decreases the cost of the switchable mirrors： employing nickel in the alloy Pd89.2Ni10.8 can save about 11% use of Pd. Therefore, the Pd-Ni alloy can provide a cheaper catalytic thin film, and it is expected to have applications in energy-saving windows, hydrogen sensors and hydrogen storage materials.

关键词： magnesium alloy thin film hydrogen storage material Pd-Ni alloy smart window energy-saving material

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The synergistic catalysis on Co nanoparticles and CoNx sites of aniline-modified ZIF derived Co@NCs for oxidative esterification of HMF

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Chinese Chemical Letters 2021年第2期32卷 685-690页

作者： Tao Rui Guo-Ping Lu Xin Zhao xun cao Zhong Chen School of Chemical Engineering Nanjing University of Science&TechnologyNanjing 210094China School of Materials Science&Engineering Nanyang Technological UniversitySingapore 639798Singapore

An efficient sustainable and scalable strategy for the synthesis of porous cobalt/nitrogen co-doped carbons(Co@NCs) via pyrolysis of aniline-modified ZIFs,has been *** can coordinate and absorb on the surface of ZIF(ZIF-CoZn3-PhA),accelerate the precipitation of ZIFs,thus resulting in smaller ZIF particle ***,the aniline on the surface of ZIF-CoZn3-PhA promotes the formation of the protective carbon shell and smaller Co nanoparticles,and increases nitrogen content of the *** of these prope rties of Co@NC-PhA-3,the oxidative esterification of 5-hydroxymethylfurfural can be carried out under ambient *** to our experimental and computational results,a synergistic catalytic effect between CoNx sites and Co nanoparticles has been established,in which both Co nanoparticles and CoNx can activate O2 while Co nanoparticles bind and oxidize ***,the formation and release of active oxygen species in CoNx sites are reinfo rced by the electronic interaction between Co nanoparticles and CoNx.

关键词： Aniline-modified ZIF Porous cobalt/nitrogen co-doped carbon Synergistic catalysis on CoNx sites and Co nanoparticles Oxidative esterification 5-Hydroxymethylfurfural

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Localizing and Characterizing Colloidal Particles Scattering Using Lens-free Holographic Microscopy

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Chinese Physics Letters 2019年第1期36卷 28-31页

作者： Xia Hua Cheng Yang Ye Huang Feng Yan xun cao School of Electronic Science and Engineering Nanjing University

Lens-free holographic microscopy could achieve both improved resolution and field of view(FOV), which has huge potential applications in biomedicine, fluid mechanics and soft matter physics. Unfortunately, due to the limited sensor pixel size, target objects could not be located to a satisfactory level. Recent studies have shown that electromagnetic scattering can be fitted to digital holograms to obtain the 3 D positions of isolated colloidal spheres with nanometer precision and millisecond temporal resolution. Here, we describe a lens-free holographic imaging technique that fits multi-sphere superposition scattering to digital holograms to obtain in situ particle position and model parameters: size and refractive index of colloidal spheres. We show that the proposed method can be utilized to analyze the location and character of colloidal particles under large FOV with high density.

关键词： Lensless holographic microscope Colloidal particles biomedical

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长链非编码RNA与骨性关节炎

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中国组织工程研究 2025年第11期29卷 2357-2367页

作者：郑善斌夏天卫孙家豪陈志远曹逊张超沈计荣南京中医药大学南京中医药大学附属医院南京中医药大学第一临床医学院江苏省南京市210000

背景:骨性关节炎作为中老年常见疾病,发病机制尚不清晰。长链非编码RNA通过多种途径参与骨性关节炎发病过程,如调控翻译、促进或者抑制mRNA表达、吸附miRNA等。目的:综述多种长链非编码RNA在骨性关节炎中的作用机制及研究进展。方法:检... 详细信息

背景:骨性关节炎作为中老年常见疾病,发病机制尚不清晰。长链非编码RNA通过多种途径参与骨性关节炎发病过程,如调控翻译、促进或者抑制mRNA表达、吸附miRNA等。目的:综述多种长链非编码RNA在骨性关节炎中的作用机制及研究进展。方法:检索中国知网、万方数据库、维普数据库、PubMed、Web of Science和Sciencedirect数据库,以“osteoarthritis,degenerative joint disease,degenerative arthritis,OA,LncRNA,long non-coding RNA,long noncoding RNA,long intergenic non-coding RNA”为英文检索词,以“骨性关节炎,骨关节炎,OA,长链非编码RNA,长链非编码核糖核酸,LncRNA”为中文检索词,检索1976年至2024年5月发表的所有相关文献,并对其进行筛选、归纳、分析、总结,最后纳入93篇文献进行综述。结果与结论:①收集了目前与骨性关节炎关系研究较多且较深入的25种长链非编码RNA;②长链非编码RNA可以充当miRNA的分子海绵,作为竞争性内源性RNA竞争性吸附miRNA,进而影响下游靶点;③长链非编码RNA可以调控软骨细胞的凋亡与增殖、软骨细胞外基质降解以及炎症反应等生理病理进程;④长链非编码RNA有望成为骨性关节炎临床诊断及治疗预后的生物标志物和潜在治疗靶点,未来可能会成为骨性关节炎临床治疗的新策略。

关键词：骨性关节炎软骨细胞长链非编码RNA 信号传导基因表达综述

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Flexible Au micro-array electrode with atomic-scale Au thin film for enhanced ethanol oxidation reaction

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Nano Research 2021年第1期14卷 311-319页

作者： xun cao Dongdong Peng cao Wu Yongmin He Chaojiang Li Bowei Zhang Changcun Han Junsheng Wu Zheng Liu Yizhong Huang College of Sciencey Hubei University of Technology 28 Nanli RoadHongshan DistrictWuhan 430068China School of Materials Science and Engineering Nanyang Technological University50 Nanyang AvenueSingapore 639798Singapore International Laboratory for Insulation and Energy Efficiency Materials College of Materials Science and TechnologyNanjing University of Aeronautics and Astronautics29 Jiangjun AvenueJiangning DistrictNanjing 211100China School of Mechanical Engineering Beijing Institute of Technology5 South Zhongguancun StreetHaidian DistrictBeijing 100081China Institute for Advanced Materials and Technology University of Science and Technology Beijing30 Xueyuan RoadHaidian DistrictBeijing 100083China

The catalysis of Au thin film could be improved by fabrication of array structures in large *** this work,nanoimprint lithography has been developed tofabricate flexible Au micro-array(MA)electrodes with~100%*** electron microscopy characterisations have directly visualised the atomic-scale three-dimensional(3D)nanostructures with a maximum depth of 6 atomic ***-situ observation unveils the crystal growth in the form of *** double layer capacitance brings about large number of active sites on the Au thin film and has a logarithmic relationship with mesh *** testing shows that the Au MAs perform much better ethanol oxidation reaction than the planar sample;MAs with higher mesh grade have a greater active site utilisation ratio(ASUR),which is important to build electrochemical double layer for efficient charge *** improvement on ASUR is expected for greater electrocatalytic performance and potential application in direct ethanol fuel cell.

关键词： atomic-scale three-dimensional(3D)nanostructures atomic-scale active sites in-situ observations flexible electrode ethanol oxidation reaction active site utilisation ratio

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Proton pump inhibitor use increases hepatic encephalopathy risk: A systematic review and meta-analysis

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World Journal of Gastroenterology 2019年第21期25卷 2675-2682页

作者： Yun-Jie Ma Zong-xun cao Yong Li Shun-Yi Feng Emergency Department Cangzhou Central Hospital

BACKGROUND Several studies have been conducted to explore the association between the use of proton pump inhibitors (PPIs) and hepatic encephalopathy (HE) risk in patients with liver cirrhosis. However, their results are controversial. AIM To perform a systematic review and meta-analysis to evaluate the HE risk among PPI users. METHODS A systematic search on PubMed, Web of Science, EMBase, and ScienceDirect databases was conducted up to December 31, 2018 for eligible studies involving PPI use and HE risk. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated using the fixed or random effects model. Publication bias was evaluated using Begg’s test, Egger’s test, and trim-and-fill method. RESULTS Seven studies with 4574 patients were included in the present meta-analysis. The meta-analysis results indicated a significant association between the PPI use and HE risk (OR = 1.50;95%CI: 1.25-1.75) with low heterogeneity (I2 = 14.2%, P = 0.321). Although publication bias existed when Egger’s tests were used (P = 0.005), the trim-and-fill method verified the stability of the pooled result. Sensitivity analyses suggested that the results of this meta-analysis were robust. CONCLUSION The current evidence indicates that PPI use increases HE risk in patients with liver cirrhosis. Further studies with a large data set and well-designed models are needed to validate our findings.

关键词： Proton pump inhibitors Hepatic encephalopathy Meta-analysis

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