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Design of a cationic accelerator enabling ultrafast ion diffusion kinetics in aqueous zinc-ion batteries

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Journal of Energy Chemistry 2025年第1期100卷 377-384页

作者： Yawei Xiao Qianqian Gu Haoyu Li Mengyao Li Yude Wang National Center for international Research on Photoelectric and Energy Materials School of Materials and Energy Yunnan University Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources School of Chemistry and Chemical Engineering Hainan University College of Chemical Engineering Fuzhou University Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies Yunnan University

Aqueous zinc-ion batteries are highly favored for grid-level energy storage owing to their low cost and high safety,but their practical application is limited by slow ion *** address this,a strategy has been developed to create a cation-accelerating electric field on the surface of the cathode to achieve ultrafast Zn2+diffusion *** employing electrodeposition to coat MoS2on the surface of BaV6O16·3H2O nanowires,the directional built-in electric field generated at the heterointerface acts as a cation accelerator,continuously accelerating Zn2+diffusion into the active *** optimized Zn2+diffusion coefficient in CC@BaV-6O16·3H2O@MoS2(7.5×10～8cm2s-1) surpasses that of most reported V-based ***,MoS2serving as a cathodic armor extends the cycling life of the Zn-CC@BaV6O16·3H2O@MoS2full batteries to over 10000 *** work provides valuable insights into optimizing ion diffusion kinetics for high-performance energy storage devices.

关键词： Zinc alloys

China: Unscathed through the Global Financial Tsunami

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China & World Economy 2009年第6期17卷 24-42页

作者： Mingchun Sun Chief China Economist Nomura International （HK） Limited Hong Kong

This paper investigates the reasons behind the resilience of China＇s economy to the global financial tsunami. China ＇s economy is lowly leveraged in its banking, household, public and external sectors and, therefore, is less plagued by the global deleveraging than most developed economies. Chinese domestic sectors have improved significantly over the past decade, giving them larger capacity to cope with external shocks than during the Asian financial crisis a decade ago. Contrary to the conventional wisdom that China＇s economic growth is highly dependent on exports, we find that the main growth engine for China is domestic demand. Destocking, rather than falling exports, was the main cause of the sharp economic slowdown in China in late 2008 and early 2009. Therefore, the global economic slowdown should have limited impact on China＇s economy. We forecast a sustained eeonomic recovery in China in 2009-2011, with real GDP growth exceeding 10 percent in 2010.

关键词： deleverage economic growth export financial crisis

Orbitronics for energy-efficient magnetization switching

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Science China(Information Sciences) 2025年第1期 398-399页

作者： Yuxuan YAO Daoqian ZHU Qingtao XIA Jianing LIANG Yuhao JIANG Zhiyang PENG Jiaxu LI Chen XIAO Renyou XU Wenwen WANG Xiantao SHANG Shiyang LU Dapeng ZHU Hong-Xi LIU Kaihua CAO Weisheng ZHAO Fert Beijing Institute School of Integrated Circuit Science and Engineering Beihang University National Key Lab of Spintronics Institute of International Innovation Beihang University Qingdao Research Institute Beihang University Truth Memory Corporation

Spin-orbit torque （SOT）,as a promising writing method for magnetic random-access memory （MRAM）,has garnered widespread interest for over a decade [1].Heavy metals,such as β-W,have been broadly adopted as spin current sources,but suffer from phase change at a limited thickness,resulting in a dramatic reduction of the charge-tospin conversion efficiency θSH[2].The thickness limitation leads to stringent etching conditions and large distribution among devices,posing challenges for simultaneously satisfying SOT efficiency,etching-stop margins,and back-end-ofline （BEOL） compatibility.

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Prediction on CO2 uptake of recycled aggregate concrete

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Frontiers of Structural and Civil Engineering 2020年第3期14卷 746-759页

作者： Kaiwen HUANG Ao LI Bing XIA Tao DING Department of Structural Engineeving College of Civil EngineeringTongji UniversityShanghai 200092China Shanghai international Airport Company limited Shanghai 200152China

Carbonation of concrete is a process which absorbs carbon dioxide (CO2). Recycled aggregate concrete(RAC) may own greater potential in CO2 uptake due to the faster carbonation rate than natural aggregate concrete (NAC).A quantitative model was employed to predict the CO2 uptake of RAC in this study. The carbonation of RAC and thespecific surface area of recycled coarse aggregates (RCAs) were tested to verify accuracy of the quantitative model. Basedon the verified model, results show that the CO2 uptake capacity increases with the increase of RCA replacementpercentage. The CO2 uptake amount of 1 m^3 C30 RAC within 50 years is 10.6, 13.8, 17.2, and 22.4 kg when the RCAreplacement percentage is 30%, 50%, 70%, and 100%, respectively. The CO2 uptake by RCAs is remarkable and reaches35.8%- 64.3% of the total CO2 uptake by RAC when the RCA storage time being 30 days. Considering the fact that theamount of old hardened cement paste in RCAs is limited, there is an upper limit for the CO2 uptake of RCAs.

关键词： RAC CO2 uptake carbonation specific surface area RCA

Recent Advances in Electrolytes for High-Voltage Cathodes of Lithium-Ion Batteries

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Transactions of Tianjin University 2023年第2期29卷 120-135页

作者： Wenhui Hou Yang Lu Yu Ou Pan Zhou Shuaishuai Yan Xi He Xuewen Geng Kai Liu Department of Chemical Engineering Tsinghua UniversityBeijing 100084China Power international Development limited Beijing 100084China

With the increasing scale of energy storage,it is urgently demanding for further advancements on battery technologies in terms of energy density,cost,cycle life and *** development of lithium-ion batteries(LIBs)not only relies on electrodes,but also the functional electrolyte systems to achieve controllable formation of solid electrolyte interphase and high ionic *** order to satisfy the needs of higher energy density,high-voltage(>4.3 V)cathodes such as Li-rich layered compounds,olivine LiNiPO_(4),spinel LiNi_(0.5)Mn_(1.5)O_(4) have been extensively ***,high-voltage cathodebased LIBs fade rapidly mainly owing to the anodic decomposition of electrolytes,gradually thickening of interfacial passivation layer and vast irreversible capacity loss,hence encountering huge obstacle toward practical *** tackle this roadblock,substantial progress has been made toward oxidation-resistant electrolytes to block its side reaction with high-voltage *** this review,we discuss degradation mechanisms of electrolytes at electrolyte/cathode interface and ideal requirements of electrolytes for high-voltage cathode,as well as summarize recent advances of oxidation-resistant electrolyte optimization mainly from solvents and *** these insights,it is anticipated that development of liquid electrolyte tolerable to high-voltage cathode will boost the large-scale practical applications of high-voltage cathode-based LIBs.

关键词： High-voltage cathodes Oxidation resistance Electrolytes optimization Solvents Additives

Distribution characteristics and its controlling factor of lacustrine high-quality source rocks in the Bozhong sag,Bohai Bay Basin

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Petroleum Research 2019年第3期4卷 227-237页

作者： Hefeng Sun Lifang Liu Xue Jiang Shengbing Huang Mingyang Geng Shaoping Chen Nan Li Pu Shen CNOOC international limited Beijing100027China CNOOC Research Institute Co.Ltd. Beijing100028China

Distribution of Paleogene lacustrine high-quality source rocks in the Bozhong sag in Bohai Bay Basin is analyzed through data of geochemistry,geology and well logging,and its differences under the control of climate and tectonics is also well *** characteristics of the high-quality source rocks developed in the saline environment controlled by the climate are quite different from that developed in the rapid subsidence environment controlled by *** high-quality source rocks in Member 1 of Shahejie Formation developed in the saline environment account for 81.9%of total subsag area,and are distributed widely and *** high-quality source rocks in Member 3 of Shahejie Formation and Member 3 of Dongying Formation is developed in the tectonic subsidence environment,and horizontally,the subsag subsidence rates has a positive correlation with the area proportion of the high-quality source rocks in the sag;vertically,the reduction-oxidation interface of the lake controls the enrichment of highquality source *** by the saline environment and rapid subsidence environment,the highquality source rocks in the Bozhong sag and adjacent areas have three types of development condition:the saline water,the tectonic subsidence,and joint control of the saline water and the tectonic *** humid climate and low subsidence rate are not favorable for development of high-quality source rocks.

关键词： Lacustrine high-quality source rocks Saline environment Rapid subsidence Reduction-oxidation interface Bozhong sag Bohai Bay Basin

Epidemiology, clinical features and transmission of re-emerging arboviral infection chikungunya

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Asian Pacific Journal of Tropical Biomedicine 2019年第4期9卷 135-139页

作者： Balamurugan Shanmugaraj Ashwini Malla Sathishkumar Ramalingam Plant Genetic Engineering Laboratory Department of Biotechnology Bharathiar University Bharat Biotech international limited Genome Valley

A number of re-emerging and emerging infectious diseases including chikungunya, West Nile, yellow fever, Zika, dengue, Japanese encephalitis, and others have increased in recent years, which threaten the public health across the globe. Chikungunya is a neglected re-emerging arboviral infection caused by chikungunya virus. Arboviral infections such as chikungunya, Zika and dengue have similar epidemiology, transmission cycles and clinical symptoms, which makes it difficult to diagnose these three infections. Moreover, there is no commercial vaccine or licensed therapy available for chikungunya infection, thus causing severe burden worldwide. Vector control may reduce the disease risk; however, this remains a challenge due to many factors including, but not limited to, evolution of insecticide resistance in mosquitoes, gaps in vector control tools, urbanization, environmental and demographic changes. Effective integrated vector control strategies and surveillance measures along with affordable vaccine development or anti-viral therapy are essential to control the infection. In this review, we discuss the epidemiology of mosquito-borne infection chikungunya which has re-emerged as an international concern in recent decades.

关键词： Arboviruses Chikungunya Epidemiology Mosquito

Firm-specific information, analysts' superiority and investment value

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China Journal of Accounting Research 2014年第4期7卷 277-299页

作者： Lu Li Erjia Yang Tusheng Xiao School of Economics and Finance Shanghai International Studies University China Industrial international Trust limited School of Accountancy Central University of Finance and Economics

Using a sample of Chinese security analysts’recommendations from 2005 to2010,we examine the source of analysts’superiority and the investment value of their *** a calendar-time portfolio approach,we find that,on average,analysts’recommendations are valuable and that analysts are better at analyzing and transferring firm-specific information than market-wide or industry-level *** addition,we show that the investment value of recommendations increases as firm-specific information becomes more important in stock *** empirical results are useful in guiding investors and helping brokerage houses to evaluate the output of research departments.

关键词： Firm-specific information Analysts’ superiority Investment value

Impact of festival factor on electric quantity multiplication forecast model

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Journal of Southeast University(English Edition) 2008年第S1期24卷 94-98页

作者： Chen, Jianhua Sun, Jingchun Hou, Junhu School of Management Xi'an Jiaotong University Xi'an 710049 China Huadian Power international Corporation limited Jinan 250001 China

This research aims to improve the forecasting precision of electric quantity. It is discovered that the total electricity consumption considerably increased during the Spring Festival by the analysis of the electric quantity time series from 2002 to 2007 in Shandong province. The festival factor is ascertained to be one of the important seasonal factors affecting the electric quantity fluctuations, and the multiplication model for forecasting is improved by introducing corresponding variables and parameters. The computational results indicate that the average relative error of the new model decreases from 4.31% to 1.93% and the maximum relative error from 14.05% to 6.52% compared with those of the model when the festival factor is not considered. It shows that introducing the festival factor into the multiplication model for electric quantity forecasting evidently improves the precision.

关键词： forecast electric power production tendency seasonal periods multiplication model