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| 1 | A microfluidic all-vanadium photoelectrochemical cell with a full-spectrum-responsive Ti2O3 photoanode for efficient solar energy storage显示文摘The all-vanadium photoelectrochemical cell is one of the promising solar energy storage technologies. However, conventional photoanodes surfer from low solar energy utilization efficiency as a result of narrow spectrum response and poor mass transfer.Hence, in this study, a microfluidic all-vanadium photoelectrochemical cell with a full-spectrum-responsive Ti2O3 photoanode was proposed for efficient solar energy storage. Experimental results indicated that the Ti2O3 photoanode responded to almost the full spectrum of sunlight and exhibited excellent photoresponse and operation stability, which facilitated efficient solar energy utilization. Additionally, the effects of the light intensity, vanadium ion concentration, and electrolyte flow rate were studied. It was found that increasing the light intensity and vanadium ion concentration and reducing the electrolyte flow rate promoted photoelectrochemical reactions and thus improved the solar energy storage performance. The obtained results demonstrate the feasibility and superiority of using Ti2O3 as the photoanode for a photoelectrochemical cell to achieve efficient solar energy storage. | LIN YingYing FENG Hao CHEN Rong YE DingDing ZHANG Biao YU YouXu LI JinWang | 2019 | Science China(Technological Sciences)2019,62,9: | 3 |
| 2 | Biofilm formation and electricity generation of a microbial fuel cell started up under different external resistances显示文摘 | Liang Zhang Xun Zhu Jun Li Qiang Liao Dingding Ye | 2011 | Journal of Power Sources2011,,15: | 2 |
| 3 | An MFC capable of regenerating the cathodic electron acceptor under sunlight显示文摘A renewable MFC (microbial fuel cell) cathode was used in this study because the iodide ion could react with oxygen to generate triiodide under natural sunlight.The feasibility of the regeneration of triiodide ion under natural sunlight and the effect of the regenerated triiodide ion concentration on the MFC performance were studied.The results showed that the power density of the MFC using triiodide ion as cathodic electron acceptor was significantly higher than that of using ferricyanate,and that the iodide ion can be oxidized to triiodide ion by oxygen in air at the expense of natural sunlight.In addition,it was obvious from the experimental results that the MFC performance was improved with the increase of the triiodide concentration,indicating that the concentration of triiodide ion had a critical effect on the MFC performance.The linear sweep voltammetry (LSV) curves for the electro-reduction of triiodide ion on the carbon paper were obtained and the results suggested that the diffusion process of triiodide ions to cathode was the control factor for the MFC performance. | FU Qian,LI Jun,ZHU Xun,LIAO Qiang,YE DingDing & ZHANG Liang Institute of Engineering Thermophysics,Chongqing University,Chongqing 400030,China | 2010 | Science China(Technological Sciences)2010,53,9: | 2 |
| 4 | An intelligent PE-malware detection system based on association mining 显示文摘 | YE Yanfang WANG Dingding LI Tao | 2008 | Ioumal in Computer Virology2008,4,4: | 1 |
| 5 | Electrodeposition of Pd catalyst layer on graphite rod electrodes for direct formic acid oxidation显示文摘 | Biao Zhang Dingding Ye Jun Li Xun Zhu Qiang Liao | 2012 | Journal of Power Sources2012,,: | 1 |
| 6 | Math- ematical Modeling of Two-Phase Flow and Transport in an Immobilized-Cell Photobioreactor 显示文摘 | LIAO Qlang LIU Dameng YE Dingding | 2011 | Int J Hydrogen Energy2011,36,13: | 1 |
| 7 | Raman imaging-assisted customizable assembly of MOFs on cellulose aerogel显示文摘Because of a weak interface-bonding force between metal–organic frameworks(MOFs)and substrates and the loss of customization in structural designs owing to the lack of the regulation of ion sites,MOFs tend to escape from the constructed composite template.In this study,the as-prepared 2,2,6,6-tetramethylpiperidyl-1-oxyl(TEMPO)-oxidized algae cellulose nanofibers(TACFs)were used to chelate metal ions at controllable sites and subsequently firmly entangle the assembled MOF crystals.The distribution of ions and synthesized MOFs inside the gel was monitored using Raman imaging technology,which provided an intuitive approach for visually observing the ions and MOF distribution.Using this technology,the synthesized customizable TACFs@ZIF-67 aerogels exhibited a high specific surface area(734.7 m^(2)/g),low density(6.18 mg/cm^(3)),controlled particle distribution,good underwater structural stability,and excellent adsorption of dyes.This study provides a way for solving the dispersion problem of MOFs in nanofibrous aerogels using Raman imaging technology–assisted microcosmic fixed-point design. | Zhanhong Yuan Dingding Meng Yingzhu Wu Guangqing Tang Ping Liang John HXin Dongdong Ye | 2022 | Nano Research2022,15,3: | 0 |
| 8 | Revealing alkali metal ions transport mechanism in the atomic channels of Au@a-MnO_(2)显示文摘Understanding alkali metal ions’(e.g.,Li^(+)/Na^(+)/K^(+))transport mechanism is challenging but critical to improving the performance of alkali metal batteries.Herein using a-MnO_(2)nanowires as cathodes,the transport kinetics of Li^(+)/Na^(+)/K^(+)in the 2×2 channels of a-MnO_(2)with a growth direction of[001]is revealed.We show that ion radius plays a decisive role in determining the ion transport and electrochemistry.Regardless of the ion radii,Li^(+)/Na^(+)/K^(+)can all go through the 2×2 channels of a-MnO_(2),generating large stress and causing channel merging or opening.However,smaller ions such as Li^(+)and Na^(+)cannot only transport along the[001]direction but also migrate along the<110>direction to the nanowire surface;for large ion such as K^(+),diffusion along the<110>direction is prohibited.The different ion transport behavior has grand consequences in the electrochemistry of metal oxygen batteries(MOBs).For Li-O_(2)battery,Li^(+)transports uniformly to the nanowire surface,forming a uniform layer of oxide;Na^(+)also transports to the nanowire surface but may be clogged locally due to its larger radius,therefore sporadic pearl-like oxides form on the nanowire surface;K^(+)cannot transport to the nanowire surface due to its large radius,instead,it breaks the nanowire locally,causing local deposition of potassium oxides.The study provides atomic scale understanding of the alkali metal ion transport mechanism which may be harnessed to improve the performance of MOBs. | Jingzhao Chen Yong Su Hongjun Ye Yushu Tang Jitong Yan Zhiying Gao Dingding Zhu Jingming Yao Xuedong Zhang Tingting Yang Baiyu Guo Hui Li Qiushi Dai Yali Liang Jun Ma Bo Wang Haiming Sun Qiunan Liu Jing Wang Congcong Du Liqiang Zhang Yongfu Tang Jianyu Huang | 2023 | Journal of Energy Chemistry2023,,7: | 0 |
| 9 | Multiscale strain alleviation of Ni-rich cathode guided by in situ environmental transmission electron microscopy during the solid-state synthesis显示文摘Ni-rich layered oxides are one of the most promising cathode materials for Li-ion batteries due to their high energy density.However,the chemomechanical breakdown and capacity degradation associated with the anisotropic lattice evolution during lithiation/delithiation hinders its practical application.Herein,by utilizing the in situ environmental transmission electron microscopy(ETEM),we provide a real time nanoscale characterization of high temperature solid-state synthesis of LiNi_(0.8)CO_(0.1)Mn_(0.1)O_(2)(NCM811) cathode,and unprecedentedly reveal the strain/stress formation and morphological evolution mechanism of primary/second ary particles,as well as their influence on electrochemical performance.We show that stress inhomogeneity during solid-state synthesis will lead to both primary/secondary particle pulverization and new grain boundary initiation,which are detrimental to cathode cycling stability and rate performance.Aiming to alleviate this multiscale strain during solid-state synthesis,we introduced a calcination scheme that effectively relieves the stress during the synthesis,thus mitigating the primary/secondary particle crack and the detrimental grain boundaries formation,which in turn improves the cathode structural integrity and Li-ion transport kinetics for long-life and high-rate electrochemical performance.This work remarkably advances the fundamental understanding on mechanochemical properties of transition metal oxide cathode with solid-state synthesis and provides a unified guide for optimization the Ni-rich oxide cathode. | Fengyu Zhang Yunna Guo Chenxi Li Tiening Tan Xuedong Zhang Jun Zhao Ping Qiu Hongbing Zhang Zhaoyu Rong Dingding Zhu Lei Deng Zhangran Ye Zhixuan Yu Peng Jia Xiang Liu Jianyu Huang Liqiang Zhang | 2023 | Journal of Energy Chemistry2023,,9: | 0 |
| 10 | Effect of geometrical configurations on alkaline air-breathing membraneless microfluidic fuel cells with cylinder anodes显示文摘Membraneless microfluidic fuel cells(MMFCs) outperform traditional membrane-based micro-fuel cells in membraneless architecture and high surface-to-volume ratio and facile integration, but still need substantial improvement in performance. The fundamental challenges are dictated by multiphysics regarding cell configurations: the interaction of fluid flow, mass transport and electrochemical reactions. We present a numerical research that investigates the effect of geometrical configurations(rod arrangement, cell length, rod diameter and spacer configuration) on the fuel transport and performance of an alkaline MMFC with cylinder anodes. Modeling results suggest that the staggered rod arrangement outperforms the in-line case by 10.1% at 50 μL min^(–1). Cell power output and power density vary nearly linearly with the cell length. In the case with 0.7 mm anodes and 0.3 mm spacers, the increased flow resistance at anode region drives the fuel to intrude into the spacer zone, leading to fuel transport limitation at downstream. The feasibility of non-spacer configuration is demonstrated, and the power density is 93.7% higher than the baseline due to reduced cell volume and enhanced fuel transport. In addition, horizontal extension of the anode array is found to be more favorable for scale-up, the maximum power density of 181.9 mW cm^(–3) is predicted. This study provides insight into the fundamental, and offers guidance to improve the cell design for promoting performance and facilitating system integration. | ZHANG Biao WANG HaoNan ZHU Xun YE DingDing LIAO Qiang SUI PangChieh DJILALI Ned JIANG Li FU YaLu | 2019 | Science China(Technological Sciences)2019,62,3: | 0 |