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Journal of Energy Chemistry 2025年第1期100卷 39-49页

作者： Hongqiang yan. Jianfeng Zheng Guoyu Wang Yifei Gao yatao yan. Jia Li Xiaojin Han yan.Cui Zhanggen Huang National Key Laboratory of High Efficiency and Low Carbon Utilization of Coal Institute of Coal Chemistry Chinese Academy of Science University of Chinese Academy of Science Shenyan. University of Chemical Technology

Photoelectrocatalytic coupling CO2and volatile organic compounds （VOCs） is a promising green strategy for the synergistic conversion of the two carbon-containing resources to *** catalytic efficiency is always at the mercy of chemical inertness of CO2and the competitive hydrogen evolution of ***,a modified g-C3N4/ZnAl-LDH Z-scheme heterojunction catalyst with dual reaction site was rationally designed and precisely *** Faraday efficiency of ethanol reached 68.67%with a corresponding formation rate of 227.3μmol *** revealed by in-situ characterizations and density functional theory calculations,CO2and HCHO were absorbed at Zn site and N site,***,*CO generated from CO2and HCHO was converted to*CH3O and*CHO on the dual-active-site *** detailed reaction mechanism experiments indicated that C–C coupling only occurred between*CO and*CH3O in electrocatalysis *** from the“*CO+*CH3O”path,another“*CO+*CHO”coupling path was also detected in photoelectrocatalytic *** selectivity of ethanol was significantly enhanced due to the synthesis of dual-site catalyst and the dual-path coupling path between CO2and HCHO simultaneously driven by light and electricity.

关键词： Ethanol

Characteristics of carbonyls and volatile organic compounds （VOCs） in residences in Beijing, China

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Frontiers of Environmental Science & Engineering 2016年第1期10卷 73-84页

作者： Hengyi DUAN Xiaotu LIU Meilin yan.yatao WU Zhaorong LIU Joint Key Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and Engineering Peking University Beijing 100871 China

Volatile organic compounds （VOCs） and carbonyl compounds were measured both indoors and outdoors in 50 residences of Beijing in heating （December, 2011） and non-heating seasons （April/May, 2012）. SUMMA canisters for VOCs and diffusive samplers for carbonyl compounds were deployed for 24 h at each site, and 94 compounds were quantified. Formaldehyde, acetone and acetaldehyde were the most abundant carbonyl compounds both indoors and outdoors with indoor median concentrations being 32.1, 21.7 and 15.3 μg·m-3, respec- tively. Ethane （17.6 μg·m-3）, toluene （14.4 μg·m-3）, pro- pane （11.2 μg·m-3）, ethene （8.40 μg·m-3）, n-butane （6.87 μg·m-3）, and benzene （5.95 μg·m-3） showed the high median concentrations in indoor air. Dichloromethane, p- dichlorobenzene （p-DCB） and toluene exhibited extremely high levels in some residences, which were related with a number of indoor emission sources. Moreover, isoprene, p- dichlorobenzene and carbonyls showed median indoor/ outdoor （I/O） ratios larger than 3, indicating their indoor sources were prevailing. Chlorinated compounds like CFCs were mainly from outdoor sources for their I/O ratios being less than 1. In addition, indoor concentrations between two sampling seasons varied with different compounds. Carbonyl compounds and some chlorinated compounds had higher concentrations in the non-heating season, while alkanes, alkenes, aromatic compounds showed an increase in the heating season. Indoor concentration of VOCs and carbonyls were influenced by locations, interior decorations and indoor activities, however the specific sources for indoor VOCs and carbonyls could not be easily identified. The findings obtained in this study would significantly enhance our understandings on the prevalent and abundant species of VOCs as well as their concentrations and sources in Beijing residences.

关键词： indoor air Volatile organic compounds(VOCs) carbonyl compounds residence

Manipulating the ionic nanophase of Nafion by in-situ precise hybridization with polymer quantum dot towards highly enhanced fuel cell performances

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Nano Research 2022年第5期15卷 4124-4131页

作者： Wenjia Wu Zhuofan Zhou yan.Wang yatao Zhang Yong Wang Jingtao Wang Yecheng Zou School of Chemical Engineering Zhengzhou UniversityZhengzhou 450001China Henan Institute of Advanced Technology Zhengzhou UniversityZhengzhou 450003China State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China State Key Laboratory of Fluorinated Functional Membrane Materials Shandong DongYue Polymer Material Co.Ltd.Zibo 256400China

Hierarchical-structure materials hold great promise for numerous applied domains such as fuel cell,sensor,and ***,the developments are significantly impeded by the lack of efficient strategy permitting precise and efficient decoration of specific confined ***,an in-situ precise hybridization strategy is proposed to efficiently manipulate the nanostructure of membrane ***,Nafion ionic nanochannels are impregnated with precursors via heat swelling,followed by microwave-assisted condensation to form polymer quantum dot *** formation of polymer quantum dot network significantly improves the stability and functionality of ionic nanophase(i.e.,ionic nanochannel).This helps hybrid membrane achieving enhanced proton conduction and methanol barrier properties,resulting in over ten times increase in proton/methanol *** then impart prominent device performances for both hydrogen and methanol fuel cells with the elevation of~100%.Importantly,such function manipulation of ionic nanochannels is achieved with fully maintaining function of backbone ***,the regulation of physical topology and chemical environment of ionic nanochannel also brings optimization of gas and ion separation *** facile and versatile strategy may open up a new avenue for decorating confined space of many hierarchical-structure materials.

关键词： nanophase-separated membrane in-situ precise hybridization polymer quantum dot nanophase decoration performance enhancement

节理粗糙度及吻合状态对岩体动态压缩特性影响的试验研究

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岩石力学与工程学报 2021年第6期40卷 1132-1144页

作者：闫亚涛李建春东南大学土木工程学院江苏南京211189 东南大学爆炸安全防护教育部工程研究中心江苏南京211189

节理粗糙度及吻合状态不仅直接影响节理力学性质,也对岩体的动态压缩性质有重要影响。首先采用水泥砂浆材料浇制不同粗糙度的完全吻合和不吻合节理岩体试样,然后使用分离式霍普金森杆系统对所制试样进行冲击试验研究节理岩体的动态压缩... 详细信息

节理粗糙度及吻合状态不仅直接影响节理力学性质,也对岩体的动态压缩性质有重要影响。首先采用水泥砂浆材料浇制不同粗糙度的完全吻合和不吻合节理岩体试样,然后使用分离式霍普金森杆系统对所制试样进行冲击试验研究节理岩体的动态压缩性质,同时利用高速摄像机及数字图像相关方法进行观测和计算去探究节理岩体动态破坏过程。结果表明:(1)给定冲击荷载下,节理面粗糙度对完全吻合型节理试样的动态压缩强度和平均模量影响不大,但对不吻合型节理试样影响较大;(2)不吻合型节理表现出非线性动态压缩闭合特点,其闭合特性不仅受到节理面粗糙度的影响,而且与节理的具体形貌特征相关;(3)应力波在通过完全吻合型节理岩体的能力时受到节理面粗糙程度的影响不大,而不吻合节理岩体试样则表现出随着JRC增大而增大的趋势;(4)节理岩体破坏与节理面的不规则凸起有关,节理壁凸起与应力波的相互作用引起节理面凸起处出现应力集中效应。拉应力引起张拉裂纹,而后裂纹扩展,直至贯通,岩体发生劈裂破坏坏。

关键词：岩石力学节理粗糙度节理吻合状态动态压缩闭合破坏过程 SHPB

Analysis of coal mine safety accident features in China,2017–2022

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Geohazard Mechanics 2024年第2期2卷 108-120页

作者： Yuemao Zhao yatao yan.Kai Liu Xingdong Zhao Huaibin Li Juncai Cao Song Zhang Keming Ma College of Energy and Mining Engineering Shandong University of Science and TechnologyQingdao266590China School of Civil Engineering Southeast UniversityNanjingJiangsu211189China University of Oxford Parks RoadOxfordOX13PJUK College of Resources and Civil Engineering Northeastern UniversityShenyang110819China School of Safety Science and Engineering Anhui University of Science and TechnologyHuainan232001China Mining College of Guizhou University Guizhou UniversityGuiyang550025China Bijie Big Data Industry Development Center Bijie551700China Ordos Yingpanhao Coal Co. LtdOrdos017000China

Coal-related accidents are prevalent in China, often attributed to the intricate geology and challenging workingconditions of mines. This study seeks to determine the patterns of these accidents by examining the characteristicsof an accidents database, considering regional, temporal, mining method, and classification distribution characteristics. The analysis centers on all significant coal accidents (involving three or more fatalities) that occurredin China from 2017 to 2022, as documented in China’s (excluding Hong Kong, Macao, and Taiwan) national coalmining safety accident report. Over the most recent six years, roof falls and gas explosions have emerged as themost common types of accident. Case studies were conducted to comprehensively investigate the histories andunderlying causes of these incidents. Countermeasures are proposed from three perspectives: prospective measures, optimization strategies, and enterprise management.

关键词： Coal accident Statistical characteristics Mining Roof accident Gas explosion

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油水两相流中超声振动表面油滴的脱附行为

工程热物理学报 2022年第6期43卷 1609-1616页

作者：赵芳王瑶刘亚涛闫倩倩上海应用技术大学城市建设与安全工程学院上海201418

对油水两相流中超声振动表面油滴的脱附行为进行数值模拟及微观可视化实验,研究超声作用下油滴的变形及运动状态,探讨声流及空化微射流等机制对油滴脱附行为的强化作用,进而分析入射声压、微射流速度对油滴脱附速率的影响。结果表明:超... 详细信息

对油水两相流中超声振动表面油滴的脱附行为进行数值模拟及微观可视化实验,研究超声作用下油滴的变形及运动状态,探讨声流及空化微射流等机制对油滴脱附行为的强化作用,进而分析入射声压、微射流速度对油滴脱附速率的影响。结果表明:超声作用下油滴受到声流曳力及声流回流产生的剪切力,脱附效率明显提高,且随着入射声压的增大,油滴脱附速度也逐渐增大,当入射声压幅值从0.8 MPa提高到1.4 MPa时,油滴脱附时间缩短41.8%。此外,超声空化产生的微射流也是强化油滴脱附的重要影响机制,贴壁微射流对吸附油滴产生强烈冲击,加速了油滴从壁面剥离,并与声流协同作用下有效加速油滴的脱附过程。

关键词：超声波声流微射流油滴脱附

干建材中挥发性有机物散发关键参数测试方法及影响因素研究进展

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天津大学学报（自然科学与工程技术版） 2020年第10期53卷 991-1000页

作者：颜蓓蓓智雅涛程占军胡源陈冠益天津大学环境科学与工程学院天津300350 河南省有色金属地质矿产局郑州450016

家具和装修建材是室内挥发性有机物(VOC)的主要污染源,会造成室内空气质量低劣,对人体健康、室内舒适性和工作效率产生严重影响.研究干建材VOC散发特性对控制室内污染物浓度、提高空气品质具有重要意义.干建材中VOC的散发过程可分为:VO... 详细信息

家具和装修建材是室内挥发性有机物(VOC)的主要污染源,会造成室内空气质量低劣,对人体健康、室内舒适性和工作效率产生严重影响.研究干建材VOC散发特性对控制室内污染物浓度、提高空气品质具有重要意义.干建材中VOC的散发过程可分为:VOC在干建材内部的扩散传质过程和干建材表面的对流传质过程.从传质理论的角度来看,干建材VOC的散发特性可由3个关键参数表征,即初始可散发浓度Cm,0、干建材内VOC的扩散系数Dm和分离系数K.简要总结了干建材VOC散发关键参数经典测试方法(如流化床脱附法、常温萃取法、湿杯法及双舱法等),并分析了各方法的局限性,其中详细介绍了直流舱浓度轨迹法(直流舱C-history法).详细介绍并评价了循环密闭/通风散发法与连续升温-多气固比(CTR-VVL)法.总结了采用不同测试方法(直流舱C-history法、CTR-VVL法、多次散发回归法等)所测得的干建材VOC散发关键参数的实验数据.总结了不同关键参数受温度、湿度影响的理论模型,并对比分析了前人数据与不同模型的拟合结果.最后,还分析了干建材VOC散发研究方面存在的不足及进一步研究的相关建议.

关键词：干建材关键参数挥发性有机物测试方法影响因素

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关于平面点集中次空凸五边形的个数问题

河北师范大学学报（自然科学版） 2013年第1期37卷 5-8页

作者：杜亚涛闫欣华冯光辉军械工程学院基础部河北石家庄050003 北京石油化工学院数理系北京102617

设P表示处于一般位置的平面点集,P的子集T所确定的凸多边形CH(T)称为次空凸多边形,若CH(T)的内部至多含有P中的1个点.研究了P能确定的不交的次空凸五边形的最大个数问题.

关键词：空凸多边形次空凸多边形不交次空凸分划

浅埋深地形河沟下工作面回采安全性评价与防治对策

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能源与环保 2023年第9期45卷 32-37页

作者：曹亚涛闫发志中煤科工山西华泰矿业管理有限公司河曲分公司山西忻州034000 太原理工大学山西太原030024

针对浅埋深地形河沟下工作面存在的涌突水风险问题,以山西华鹿阳坡泉煤矿典型工作面为例,在系统分析工作面水文地质条件、导水通道及水源强度后得出,大气降水及地表水是工作面主要充水水源,受工作面开采后导水裂缝带的沟通,存在涌突水... 详细信息

针对浅埋深地形河沟下工作面存在的涌突水风险问题,以山西华鹿阳坡泉煤矿典型工作面为例,在系统分析工作面水文地质条件、导水通道及水源强度后得出,大气降水及地表水是工作面主要充水水源,受工作面开采后导水裂缝带的沟通,存在涌突水风险。通过对水源强度的计算以及工作面排水能力的评估,工作面及外围的排水能力大于河沟水、降水直接倒灌时预计的出水量,满足工作面排水要求。通过对强降雨水、南石沟水、采空区水采取多方位管控措施,并配合排水系统管控,确保了浅埋深地形河沟下工作面的回采安全,并得到工作面回采验证。分析过程及采取的相关措施,对确保阳坡泉煤矿浅部煤炭资源开采安全至关重要,并可为类似条件下工作面回采提供防治水依据。

关键词：浅埋深地形水体下涌突水防治水措施

有机物料在果园生态系统中的应用及其环境效应:研究现状与展望

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中国生态农业学报（中英文） 2023年第8期31卷 1240-1255页

作者：马啸驰韩烽白亚涛吴双吴景贵马艳江苏省农业科学院农业资源与环境研究所/国家农业环境六合观测实验站南京210014 吉林农业大学资源与环境学院长春130118 南京农业大学资源与环境科学学院南京210095

外源有机物料添加已成为改善果园土壤结构、提升土壤肥力和果实品质的重要途径。有机物料来源广泛且成分复杂,类型、用量及施用方式的改变显著影响其在果园生态系统中的应用效果及伴随的环境效应特征。本文系统总结了有机物料的来源与... 详细信息

外源有机物料添加已成为改善果园土壤结构、提升土壤肥力和果实品质的重要途径。有机物料来源广泛且成分复杂,类型、用量及施用方式的改变显著影响其在果园生态系统中的应用效果及伴随的环境效应特征。本文系统总结了有机物料的来源与性质及其对果树生长发育、土壤物理结构、土壤养分循环及生物学性状的影响,重点关注了有机物料添加下果园温室气体排放、重金属及新型污染物(持久性有机污染物、抗生素及微塑料)积累与转化特征。有机物料施用对果园生态系统产生的主要影响为:1)有机物料的合理施用能有效改善土壤物理结构、理化性质及生物活性,增强土壤保肥供肥能力,为果树生长发育创造良好条件,提高产量和果实品质;2)有机物料类型、用量及施用方式显著影响果园土壤碳氮底物浓度、相关酶及微生物活性,进而改变土壤养分元素循环及N_(2)O排放特征;3)有机物料自身成分与结构组成、土壤性质及功能微生物共同影响果园土壤重金属与新型污染物的积累、迁移与转化。有机物料施用产生的环境效应存在不确定性,其关联的果园土壤复合污染物的形成及影响机制复杂,值得深入关注,同时果园有机物料添加与环境效应变化过程的内在关联与作用机制仍需进一步研究。本文最后展望了未来果园生态系统中有机物料添加与环境效应关系研究的重要方向。

关键词：有机物料果园生态系统环境效应土壤养分循环微生物温室气体重金属新型污染物

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