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Journal of Energy Chemistry 2021年第3期30卷 16-22页

作者： Wenmiao Chen Hongchang Jin Shuai xie huanyu xie Junfa Zhu Hengxing Ji Li-Jun Wan Hefei National Laboratory for Physical Sciences at the Microscale CAS Key Laboratory of Materials for Energy ConversionDepartment of Applied ChemistryUniversity of Science and Technology of ChinaHefei 230026AnhuiChina National Synchrotron Radiation Laboratory and Collaborative Innovation Center of Suzhou Nano Science and Technology University of Science and Technology of ChinaHefei 230029AnhuiChina CAS Key Laboratory of Molecular Nanostructure and Nanotechnology Institute of ChemistryChinese Academy of SciencesBeijing 100190China

Lithium-sulfur(Li-S)batteries have become prospective candidates for next-generation energy storage owing to the high energy density and low ***,the sluggish kinetics of the electrochemical reaction and shuttle effect result in a rapid capacity ***,a titanium nitride nanocrystal/Ndoped graphene(TiN@NG)composite is developed to host elemental *** TiN nanoparticles decorated on graphene sheets attract Li polysulfides(LiPSx)and catalyze the electrochemical reduction and oxidation of LiPSx in the discharge and charge processes,*** two effects effectively restrain the dissolution of the LiPSx and accelerate the electrochemical reactions,thereby,alleviating the shuttle *** a result,the cathode composed of TiN@NG/S delivers a remarkable reversible capacity(1390 mA h g^(-1) at 0.1 C)and excellent cycling performance(730 mA h g^(-1) after 300 cycles).We believe that this work can bring some inspiration for designing high-performance Li-S batteries.

关键词： Titanium nitride Nitrogen-doped graphene Catalysis effects Adsorption capability Lithium-sulfur batteries

Molecular sieve based Janus separators for Li-ions redistribution to enable stable lithium deposition

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Nano Research 2022年第6期15卷 5143-5152页

作者： huanyu xie Zhimeng Hao Shuai xie Yadong Ye Wei Zhang Zhaowei Sun Song Jin Hengxing Ji Jun Chen Hefei National Laboratory for Physical Sciences at the Microscale CAS Key Laboratory of Materials for Energy ConversionDepartment of Applied ChemistryUniversity of Science and Technology of ChinaHefei 230026China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) College of ChemistryNankai UniversityTianjin 300071China

During operation of a lithium metal battery,uneven lithium deposition often results in the growth of lithium dendrites and causes a rapid decay in battery performance and even leads to safety *** is still the main hurdle hindering the practical application of lithium metal *** report a new type of Janus separator fabricated by introducing a molecular sieve coating on the surface of the polypropylene separator that serves as a redistribution layer for lithium *** results show that using this layer,the growth of lithium dendrites can be largely inhibited and the battery performance greatly *** a typical Li||Cu half-cell with the Janus separator,the Coulombic efficiency of the lithium metal anode can be maintained at>98.5%for over 500 *** cycling life span is also extended by a factor of 8 in the Li||Li symmetric ***,the high-strength coating improves the mechanical properties of the separator,thus enhancing *** effectiveness of our strategy is demonstrated by both the inhibited growth of lithium dendrites and the improved battery *** methodology could eventually be generalized for electrode protection in other battery systems.

关键词： Janus separator molecular sieve redistribution lithium metal anode deposition

Redistribution of Li-ions using covalent organic frameworks towards dendrite-free lithium anodes:a mechanism based on a Galton Board

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Science China Chemistry 2020年第9期63卷 1306-1314页

作者： huanyu xie Qing Hao Hongchang Jin Shuai xie Zhaowei Sun Yadong Ye Chaohui Zhang Dong Wang Hengxing Ji Li-Jun Wan Hefei National Laboratory for Physical Sciences at the Microscale CAS Key Laboratory of Materials for Energy ConversionDepartment of Applied ChemistryUniversity of Science and Technology of ChinaHefei 230026China CAS Key Laboratory of Molecular Nanostructure and Nanotechnology Institute of ChemistryChinese Academy of SciencesBeijing 100190China

Because of its high theoretical specific capacity and low reduction potential,Li metal is considered to be key to reaching high energy density in rechargeable *** this context,most of the research has focused on suppressing dendrite formation during Li deposition to improve the cycling reversibility and safety of the ***,covalent organic framework(COF)film coating on a commercial polypropylene separator is applied as an ion redistributor to eliminate Li *** COF crystallites consist of ordered nanochannels that hinder the movement of anions while allowing Li-ions to transport across,leading to a high Li-ion transference number of 0.77±*** transport of Li-ions across the COF film can be considered to be analogous to beads passing through a Galton Board,a model that demonstrates a statistical concept of a normal ***,an even distribution of Li-ions is obtained at the COF/Li metal *** controlled Li-ion flux yields a smooth Li metal surface after 1,000 h(500 times)of cycling,leading to a significantly improved cycling stability and reversibility,as demonstrated by Cu||Li half cells,Li||Li symmetric cells,and Li Fe PO4||Li full *** results suggest that,following the principle of a Galton Board,nanopore insulators such as COF-based materials are effective ion distributors for the different energy storage or conversion systems.

关键词： redistribution dendrite-free lithium metal anode COFs Galton Board

A comparison study on single metal atoms(Fe,Co,Ni)within nitrogen-doped graphene for oxygen electrocatalysis and rechargeable Zn-air batteries

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Chinese Chemical Letters 2023年第6期34卷 531-536页

作者： Shuai xie Hongchang Jin Chao Wang huanyu xie Ying-Rui Lu Ting-Shan Chan Wensheng Yan Song Jin Hengxing Ji School of Chemistry and Material Sciences CAS Key Laboratory of Materials for Energy ConversionUniversity of Science and Technology of ChinaHefei 230026China National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefei 230026China National Synchrotron Radiation Research Center 300 HsinchuTaiwanChina

Single atom catalysts(SACs)with atomically dispersed transition metals on nitrogen-doped carbon supports have recently emerged as highly active non-noble metal electrocatalysts for oxygen reduction reaction(ORR)and oxygen evolution reaction(OER),showing great application potential in Zn-air ***,because of the complex structure-performance relationships of carbon-based SACs in the oxygen electrocatalytic reactions,the contribution of different metal atoms to the catalytic activity of SACs in Zn-air batteries still remains *** this study,SACs with atomically dispersed transition metals on nitrogen-doped graphene sheets(M-N@Gs,M=Co,Fe and Ni),featured with similar physicochemical properties and M-N@C configurations,are *** comparing the on-set potentials and the maximum current,we observed that the ORR activity is in the order of Co-N@G>Fe-N@G>Ni-N@G,while the OER activity is in the order of Co-N@G>Ni-N@G>Fe-N@*** Zn-air batteries with Co-N@G as the air cathode catalysts outperform those with the Fe-N@G and Ni-N@*** is due to the accelerated charge transfer between Co-N@C active sites and the oxygen-containing *** study could improve our understanding of the design of more efficient bifunctional electrocatalysts for Zn-air batteries at the atomic level.

关键词： M-N@C catalysts Oxygen reduction reaction Oxygen evolution reaction Single atom catalysts Zn-air batteries

Regulating Li transport in Li-magnesium alloy for dendrite free Li metal anode

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Nano Research 2023年第6期16卷 8338-8344页

作者： Jinxi Wang Yadong Ye Hongmin Zhou Wei Zhang Zhaowei Sun Jiawen Zhu Hongchang Jin huanyu xie Haoliang Huang Yi Cui Rong Huang Zezhong Li Song Jin Hengxing Ji Hefei National Laboratory for Physical Sciences at the Microscale CAS Key Laboratory of Materials for Energy ConversionDepartment of Applied ChemistryUniversity of Science and Technology of ChinaHefei 230026China Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of ChinaHefei 230026China Hefei National Laboratory for Physical Sciences at the Microscale and Anhui Laboratory of Advanced Photon Science and Technology University of Science and Technology of ChinaHefei 230026China Vacuum Interconnected Nanotech Workstation(NANO-X) Suzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Suzhou 215123China School of Earth and Space Sciences University of Science and Technology of ChinaHefei 230026China

Li metal has become a strong candidate for anode due to its high theoretical specific capacity and lowest electrochemical ***,the poor reversibility caused by continuous chemical and electrochemical degradation hinders the practical application of Li ***-solution-based metal alloy phases have been proposed as hosts for regulating the non-dendrite electrodeposition,but the fundamental understanding remains unclear due to the drastically different deposition behaviors of Li on *** we found the difference in the diffusion coefficient of Li atoms on solid-solution-based metal alloy phases(Li-Mg and Li-Ag alloys)was a major contributor to the different deposition *** low Li atom diffusion coefficient of Li-Mg alloy showed a preferential Li accumulation on the upper surface rather than the inward-growth plating of Li atoms into alloy foil in Li-Ag *** the process of secondary recrystallization,we improved the diffusion coefficient of Li atoms in Li-Mg alloy that facilitates the inward transfer rather than surface plating of Li *** this case,the recrystallized Li-Mg alloy underwent a solidsolution phase change in the delithiation-lithiation cycles which yielded a high Coulombic efficiency of 99.3%with a reversible gravimetric capacity of 2,874 mAh·g−1 and superior cycling stability over 5,000 h without dendrite growth.

关键词： Li-Mg alloy solid solution recrystallization lithium metal anode diffusion coefficient

Organic matter enrichment model of fine-grained rocks in volcanic rift lacustrine basin:A case study of lower submember of second member of Lower Cretaceous Shahezi Formation in Lishu rift depression of Songliao Basin,NE China

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Petroleum Exploration and Development 2024年第5期51卷 1232-1246页

作者： xie huanyu JIANG Zaixing WANG Li XUE Xinyu School of Energy Resources China University of GeosciencesBeijing 100083China China National Offshore Oil Limited Corporation-Zhanjiang Zhanjiang 524057China School of Marine Sciences Sun Yat-sen UniversityZhuhai 519082China

Based on sedimentary characteristics of the fine-grained rocks of the lower submember of second member of the Lower Cretaceous Shahezi Formation(K_(1)sh_(2)^(L))in the Lishu rift depression,combined with methods of organic petrology,analysis of major and trace elements as well as biological marker compound,the enrichment conditions and enrichment model of organic matter in the fine-grained sedimentary rocks in volcanic rift lacustrine basin are *** change of sedimentary paleoenvironment controls the vertical distribution of different lithofacies types in the K_(1)sh_(2)^(L)and divides it into the upper and lower *** lower part contains massive siliceous mudstone with bioclast-bearing siliceous mudstone,whereas the upper part is mostly composed of laminated siliceous shale and laminated fine-grained mixed *** kerogen types of organic matter in the lower and upper parts are typesⅡ_(2)–Ⅲand typesⅠ–Ⅱ_(1),*** organic carbon content in the upper part is higher than that in the lower part *** enrichment of organic matter in volcanic rift lacustrine basin is subjected to three favorable ***,continuous enhancement of rifting is the direct factor increasing the paleo-water depth,and the rise of base level leads to the expansion of deep-water mudstone/shale deposition ***,relatively strong underwater volcanic eruption and rifting are simultaneous,and such event can provide a lot of nutrients for the lake basin,which is conducive to the bloom of algae,resulting in higher productivity of typesⅠ–Ⅱ_(1)***,the relatively dry paleoclimate leads to a decrease in input of fresh water and terrestrial materials,including TypeⅢkerogen from terrestrial higher plants,resulting in a water body with higher salinity and anoxic stratification,which is more favorable for preservation of organic *** organic matter enrichment model of fine-grained sedimentary rocks of volcanic rift lacustrine basin is establish

关键词： fine-grained sedimentary rocks organic matter sources rifting volcanic activity Lower Cretaceous Shahezi Formation Lishu rift depression Songliao Basin

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中-上扬子地区寒武系层序地层格架

石油学报 2021年第7期42卷 865-884页

作者：谢环羽姜在兴王培玺谢武仁杨雨中国地质大学(北京)能源学院北京100083 中国石油学会北京100724 中国石油勘探开发研究院北京100083 中国石油西南油气田公司四川成都610051

以典型露头剖面实测分析为基础,结合岩石薄片、钻测井、全岩碳氧同位素和地震剖面的综合分析,将中—上扬子地区寒武系海相地层划分为6个区域上可对比的三级层序,建立了年代地层、岩石地层与层序地层之间的关系。层序CSQ1相当于下寒武统... 详细信息

以典型露头剖面实测分析为基础,结合岩石薄片、钻测井、全岩碳氧同位素和地震剖面的综合分析,将中—上扬子地区寒武系海相地层划分为6个区域上可对比的三级层序,建立了年代地层、岩石地层与层序地层之间的关系。层序CSQ1相当于下寒武统下部,由牛蹄塘组(或筇竹寺组)构成;层序CSQ2相当于下寒武统中部,由杷榔组(或沧浪铺组)构成;层序CSQ3相当于下寒武统上部,由清虚洞组(或龙王庙组)构成;层序CSQ4相当于中寒武统下部高台组;层序CSQ5相当于中寒武统上部—上寒武统下部,由孔王溪组和耗子沱群(或洗象池群)下部构成;层序CSQ6相当于上寒武统中—上部,由耗子沱群(或洗象池群)中—上部构成,6个三级层序纵向上叠置构成1个完整的寒武系二级层序。识别出2种层序界面类型,即相对海平面下降形成的Ⅱ型层序界面和暴露有关的Ⅰ型层序界面,区域上以Ⅱ型层序界面发育为主,仅层序CSQ1的底界面属典型的Ⅰ型层序界面。通过对比反映全球海平面相对变化的碳酸盐岩全岩碳同位素旋回和反映沉积古水深相对变化的沉积旋回,分析揭示,在古气候和沉积充填速率影响不大的背景下,中—上扬子地区寒武系三级层序CSQ1—层序CSQ4和层序CSQ6属于全球海平面层序,其可容空间的增加主要取决于全球海平面的上升,而层序CSQ5属于主要受控于扬子区西缘构造活动影响的构造层序。层序CSQ1发育于震旦纪末期桐湾运动灯影组剥蚀夷平面之上的碎屑陆棚环境,层序CSQ2—层序CSQ3演变为混积陆棚—碳酸盐岩缓坡环境;中—晚寒武世,受中—上扬子区碳酸盐岩台地边缘加积-进积作用的逐渐加强以及全球海平面上升的影响,陆源物质输入减少,层序CSQ4—层序CSQ6演变为典型的局限镶边台地环境。

关键词：层序地层海平面变化碳酸盐岩寒武系中—上扬子地区

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中—上扬子地区奥陶系层序地层格架

石油学报 2019年第10期40卷 1202-1222页

作者：谢环羽赵靖舟王培玺谢武仁杨雨西安石油大学地球科学与工程学院陕西省油气成藏地质学重点实验室陕西西安710065 中国石油学会北京100724 中国石油勘探开发研究院北京100083 中国石油西南油气田公司四川成都610051

在系统分析典型露头剖面的岩性和沉积序列发育特征的基础上,结合古生物牙形石、全岩碳同位素和氧同位素、岩石薄片分析以及典型钻井、测井和地震的综合层序分析,将中-上扬子地区奥陶系海相地层划分为8个区域上可对比的三级层序,即层序OS... 详细信息

在系统分析典型露头剖面的岩性和沉积序列发育特征的基础上,结合古生物牙形石、全岩碳同位素和氧同位素、岩石薄片分析以及典型钻井、测井和地震的综合层序分析,将中-上扬子地区奥陶系海相地层划分为8个区域上可对比的三级层序,即层序OSQ1-层序OSQ8。建立了年代地层、牙形石生物地层、岩石地层与层序地层之间的相互关系。识别出Ⅱ型及Ⅲ型(淹没不整合型)2种层序界面。区域上以发育Ⅱ型层序界面为主,仅层序OSQ7的顶界面(即临湘组与五峰组的分界面)属典型的Ⅲ型层序界面。中-上扬子地区奥陶系碳酸盐台地/缓坡相沉积的淹没是一个渐进发展的过程,从早奥陶世晚期至晚奥陶世晚期,持续时间超过25 Ma。通过对比反映全球海平面相对变化的全岩碳同位素旋回和反映沉积古水深相对变化的沉积旋回,分析揭示,在古气候和沉积充填速率影响不大的背景下,中-上扬子地区下奥陶统下部层序OSQ1的发育主要受控于全球海平面变化,而层序OSQ2-层序OSQ8的发育主要受控于区域构造运动,即扬子板块向华夏板块的俯冲会聚所产生的挤压构造作用,属于较为典型的前陆挤压层序。

关键词：层序地层海平面变化碳酸盐岩奥陶系中-上扬子地区

天然气铝熔炼炉内料堆熔化过程数值模拟与堆料高度优化研究

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中南大学学报（自然科学版） 2024年第6期55卷 2084-2091页

作者：闫红杰谢环宇吴克伍东玲刘柳中南大学能源科学与工程学院湖南长沙410083

以天然气铝熔炼炉中铝料的熔化过程为研究对象,通过VOF模型捕捉气液界面,采用EnthalpyPorosity模型描述固液相变过程,对二维截面铝料熔化的非稳态过程进行数值模拟,研究铝料在熔化过程中的流动与传热行为,并对堆料方式单因素的影响进行... 详细信息

以天然气铝熔炼炉中铝料的熔化过程为研究对象,通过VOF模型捕捉气液界面,采用EnthalpyPorosity模型描述固液相变过程,对二维截面铝料熔化的非稳态过程进行数值模拟,研究铝料在熔化过程中的流动与传热行为,并对堆料方式单因素的影响进行分析。研究结果表明:在熔炼过程的前中期,熔化后的铝液累积在熔池烟气入口侧,导致已熔融铝液凝固;在铝料高度分别为2.94、2.64、2.34和2.04 m时,熔化速率随时间均呈现先减小后增大的规律;当料堆高度为2.64 m时,熔化时间最短,为3199 s,铝料平均温度最低,比基准工况下的平均温度低50 K,可以有效防止上层铝液过热,减少氧化造成的铸损。

关键词：天然气铝熔炼炉数值模拟熔化堆料方式

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火山断陷型湖盆细粒沉积岩有机质富集模式——以松辽盆地梨树断陷下白垩统沙河子组二段下亚段为例

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石油勘探与开发 2024年第5期51卷 1067-1079,1091页

作者：谢环羽姜在兴王力薛欣宇中国地质大学(北京)能源学院北京100083 中海石油(中国)有限公司湛江分公司广东湛江524057 中山大学海洋科学学院广东珠海519082

以松辽盆地梨树断陷下白垩统沙河子组二段下亚段(简称沙二下亚段)沉积特征为例,采用有机岩石学、主微量元素及生物标志化合物分析等方法,探讨火山断陷型湖盆细粒沉积岩有机质富集条件及富集模式。研究结果表明,沉积古环境的变化控制沙... 详细信息

以松辽盆地梨树断陷下白垩统沙河子组二段下亚段(简称沙二下亚段)沉积特征为例,采用有机岩石学、主微量元素及生物标志化合物分析等方法,探讨火山断陷型湖盆细粒沉积岩有机质富集条件及富集模式。研究结果表明,沉积古环境的变化控制沙二下亚段不同岩相类型的垂向分布,并将其划分为上、下两部分,下部主要发育块状长英质泥岩夹含生屑长英质泥岩,上部主要发育纹层状长英质页岩和纹层状细粒混积页岩;下部有机质干酪根类型以Ⅱ2—Ⅲ型为主、上部以Ⅰ—Ⅱ1型为主,且总体呈现出上部有机碳含量较下部增高的特征。分析认为,火山断陷型湖盆有机质富集的主要条件为:①持续增强的裂陷作用是导致古水深加大的直接因素,基准面上升使深水沉积范围随之扩大,泥页岩发育规模相应增大;②相对强烈的水下火山喷发与裂陷作用具有同时性,火山活动可为湖盆提供大量营养物质,有利于藻类的勃发,并导致Ⅰ—Ⅱ1型干酪根生产力较高;③相对干旱的古气候导致河流淡水及陆源物质(包括陆源高等植物Ⅲ型干酪根)输入减少,形成高盐度、缺氧分层的水体,咸水湖盆有利于有机质保存。在此基础上,建立的火山断陷型湖盆细粒沉积岩有机质富集模式,对深化松辽盆地沙河子组乃至中国东北地区同期火山断陷型湖盆细粒沉积岩有机质富集机制的地质认识,具有一定的参考借鉴意义。

关键词：细粒沉积岩有机质来源裂陷作用火山活动下白垩统沙河子组梨树断陷松辽盆地