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硬模板法制备固体氧化物燃料电池复合阳极GDC–SrMoO_4–YSZ

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硅酸盐学报 2016年第7期44卷 919-924页

作者：由宏新招聪管亚军官国清阿布里提.阿布都拉大连理工大学化工机械学院辽宁大连116024 日本弘前大学北日本新能源研究中心

以活性炭纤维为模板,用硬模板法合成钙钛矿材料Sr Mo O_4,并在Sr Mo O_4阳极上浸渍Gd_(0.2)Ce_(0.8)O_(1.9)(GDC),制备出GDC–Sr Mo O_4–YSZ复合阳极。分别以Sr Mo O_4–YSZ和GDC–Sr Mo O_4–YSZ为阳极,制备了固体氧化物燃料单电池,... 详细信息

以活性炭纤维为模板,用硬模板法合成钙钛矿材料Sr Mo O_4,并在Sr Mo O_4阳极上浸渍Gd_(0.2)Ce_(0.8)O_(1.9)(GDC),制备出GDC–Sr Mo O_4–YSZ复合阳极。分别以Sr Mo O_4–YSZ和GDC–Sr Mo O_4–YSZ为阳极,制备了固体氧化物燃料单电池,并测试了其电性能。探究了不同浸渍次序下,阳极的材料组成对电池发电性能的影响。结果表明,以ch4为燃料,工作温度为800℃时,Sr Mo O_4中浸渍GDC质量分数为50%,Sr Mo O_4与YSZ质量比为5:5的阳极材料,最大功率密度为317.15 m W/cm^2;Sr Mo O_4–YSZ中GDC浸渍量为50%时,单电池性能最佳,最大功率达到361.01 m W/cm^2。

关键词：固体氧化物燃料电池钙钛矿结构钼酸锶硬模板法

青藏高原上空甲烷的时空分布特征及其夏季高值形成机制分析

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气候与环境研究 2017年第3期22卷 315-321页

作者：周杰官莉南京信息工程大学气象灾害预报预警与评估协同创新中心中国气象局气溶胶-云-降水重点开放实验室南京210044

利用搭载在美国Aqua卫星上的大气红外探测仪(AIRS)观测资料反演的全球甲烷(ch_4)产品和NCEP再分析资料,分析了2003~2014年青藏高原上空ch_4的时空变化特征,探讨了夏季ch_4高值变化与季风的关系。研究结果表明:就青藏高原整体而言,ch_4... 详细信息

利用搭载在美国Aqua卫星上的大气红外探测仪(AIRS)观测资料反演的全球甲烷(ch_4)产品和NCEP再分析资料,分析了2003~2014年青藏高原上空ch_4的时空变化特征,探讨了夏季ch_4高值变化与季风的关系。研究结果表明:就青藏高原整体而言,ch_4浓度随高度增加递减;对流层中高层ch_4含量季节变化较为明显,其平均浓度在7~9月处于高值,6月、10月次之,其余月份处于低值。2003~2014年ch_4含量呈逐年上升趋势,年增长率约为4.66ppb(10-9)。高原上空ch_4空间分布分析显示,高原北部ch_4浓度高于南部地区。夏季风期间,随着高原上的强对流输送和上空南亚高压的阻塞,对流层中高层ch_4浓度明显增加并不断积累,在8月底至9月初出现最大值。在分析季风指数的基础上发现,夏季季风影响下的强对流输送是高原对流层中高层ch_4高值形成的主要原因之一,对流层中高层ch_4浓度最大值出现时间较季风指数的峰值滞后约半至一个月,随着夏季风的撤退,ch_4浓度高值迅速降低。

关键词：甲烷大气红外探测仪(AIRS) 青藏高原时空分布季风指数

Electronic Absorption Spectra and Third-Order Nonlinear Optical Property of Dinaphtho[2,3-b:2’,3’-d]Thiophene-5,7,12,13- Tetraone (DNTTRA) and Its Phenyldiazenyl Derivatives: DFT Calculations

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Computational chemistry 2020年第4期8卷 43-60页

作者： Ziran chen Yujin Zhang Zhanrong He Yonghua guan Yuan Li Hongping Li Department of Architecture and Environment Engineering Sichuan Vocational and Technical College Suining China Department of Electronic and Electrical Engineering Sichuan Vocational and Technical College Suining China Institute for Energy Research Jiangsu University Zhenjiang China

Third-order nonlinear optical (NLO) materials have broad application prospects in high-density data storage, optical computer, modern laser technology, and other high-tech industries. The structures and frequencies of Dinaphtho[2,3-b:2’,3’-d]thiophene-5,7,12,13-tetraone (DNTTRA) and its 36 derivatives containing azobenzene were calculated by using density functional theory B3LYP and M06-2X methods at 6-311++g(d, p) level, respectively. Besides, the atomic charges of natural bond orbitals (NBO) were analyzed. The frontier orbitals and electron absorption spectra of A-G5 molecule were calculated by TD-DFT (TD-B3LYP/6-311++g(d, p) and TD-M06-2X/6-311++g(d, p)). The NLO properties were calculated by effective finite field FF method and self-compiled program. The results show that 36 molecules of these six series are D-π-A-π-D structures. The third-order NLO coefficients γ (second-order hyperpolarizability) of the D series molecules are the largest among the six series, reaching 107 atomic units (10-33 esu) of order of magnitude, showing good third-order NLO properties. Last, the third-order NLO properties of the azobenzene ring can be improved by introducing strong electron donor groups (e.g. -N(ch3)2 or -NHch3) in the azobenzene ring, so that the third-order NLO materials with good performance can be obtained.

关键词： Azobenzene Dinaphtho[2 3-b:2’ 3’-d]Thiophene-5 7 12 13-Tetraone Density Functional Theory Electronic Absorption Spectra Third-Order Nonlinear Optical Property

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维普期刊数据库

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超临界水中木质素/CMC催化气化制氢

太阳能学报 2007年第10期28卷 1140-1145页

作者：关宇郭烈锦裴爱霞西安交通大学动力工程多相流国家重点实验室西安710049

在间歇式高压反应釜中,以碱性化合物K_2CO_3和Ca(OH)_2以及Ru/C为催化剂,对木质素在超临界水中的气化制氢特性进行了实验研究。结果表明:3种催化剂都有较好的催化作用,其中Ru/C的效果最佳,几种催化剂混合使用的效果要比单独一种催化剂... 详细信息

在间歇式高压反应釜中,以碱性化合物K_2CO_3和Ca(OH)_2以及Ru/C为催化剂,对木质素在超临界水中的气化制氢特性进行了实验研究。结果表明:3种催化剂都有较好的催化作用,其中Ru/C的效果最佳,几种催化剂混合使用的效果要比单独一种催化剂使用时好,但是其提高的幅度不很明显。另外,随着温度的升高,H_2和ch_4的产气量以及氢转化率等都相应的升高。

关键词：生物质超临界水气化制氢

CRYSTAL STRUCTURE OF BINUCLEAR Y(Ⅲ) COMPLEX WITH p-METHYLBENZOIC ACID, Y_2(p-ch_3C_6H_4COO)_6(C_(12)H_8N_2)_2

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chinese chemical Letters 1991年第11期2卷 861-862页

作者： Rui Fen WANG Lin Pei JIN Ming Zhao WANG guan Liang CAI Shi Xiong LIU Jin Ling HUANG Department of chemistry Eebei Normal CollegeShijiazhuang050000 Department of chemistry Beijing Normal UniversityBeijing100875 Department of chemistry Fuzhou UniversityFuzhou350002

Y_2(p-ch_3C_6H_4COO)_6(C_(12)H_8N_2)_2, Mr=1349.08, triclinic, space group P, a=13.00(3), b=19.743(2), c=12.754(3)A, α=97.94(1), β=106.24(2), γ=91.66(1)°, V=3177(1)~3, Z=2, Dc=1.41gcm^(-3), λ(MoKα)=0.71069, μ=18.92 cm^(-1), F(ooo)=1384, T=295K, final R=0.073 for 6504 observed reflections with Ⅰ>36(Ⅰ). There are two nonidentical binuclear molecules with different bridging connection patterns in a cell. One has four bridging carboxyl groups bound two Y(Ⅲ) ions and another only has two. The Y-Y distance is 4.196 for the former and 5.302 for the latter respectively.

关键词： p-ch3C6H4COO CRYSTAL STRUCTURE OF BINUCLEAR Y H8N2 Y2 COMPLEX WITH p-METHYLBENZOIC ACID ch

A Three-Dimensional Velocity-Map Imaging Setup Designed for Crossed Ion-Molecule Scattering Studies

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chinese Journal of chemical Physics 2021年第1期34卷 71-80,I0011页

作者： Guo-dong Zhang Li-chang guan Zi-feng Yan Min cheng Hong Gao Beijing National Laboratory for Molecular Sciences Institute of ChemistryChinese Academy of SciencesBeijing 100190China University of chinese Academy of Sciences Beijing 100049China Beijing Success Technology Co.ltd Beijing 100102China

In this study,we report the design and simulation of an electrostatic ion lens system consisting of 22 round metal *** opening of the extractor plate is covered withmetal mesh,which is for shielding the interaction region of the lens system from the high DC voltages applied to all other plates than the repeller and extractor *** Simion simulation shows that both velocity-mapping and time focusing can be achieved simultaneously when appropriate voltages are applied to each of the *** makes the ion lens system be able to focus large ionic volumes in all three dimensions,which is an essential requirement for crossed ion-molecule scattering studies.A three-dimensional ion velocity measurement system with multi-hit and potential multi-mass capability is built,which consists of a microchannel plate(MCP),a P47 phosphor screen,a CMOS camera,a fast photomultiplier tube(PMT),and a high-speed *** two velocity components perpendicular to the flight axis are measured by the CMOS camera,and the time-of-flight,from which the velocity component along the flight axis can be deduced,is measured by the PMT.A Labview program is written to combine the two measurements for building the full three-dimensional ion velocity in real time on a frame-by-frame *** multi-hit capability comes from the fact that multiple ions from the camera and PMT in the same frame can be correlated with each other based on their various *** demonstrate this by using the photodissociation of ch31 at 304 nm.

关键词： Three-dimensional image Velocity-mapping Time-focusing Ion-molecule scattering Photodissociation

Hole-conductor-free fully printable mesoscopic solar cell with mixed-anion perovskite ch3NH3PbI(3-x)(BF4)x

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Hole-conductor-free fully printable mesoscopic solar cell wi...

天然气水合物CO_(2)吞吐置换实验新方法

第三届新型太阳能电池学术研讨会

作者： Yanjun guan Jiangzhao chen Yaoguang Rong Huawei Liu Hongwei Han Wuhan National laboratory for Optoelectronics Huazhong University of Science and Technology

Hole-conductor-free printable perovskite solar cells employ a triple mesoscopic layer structure of TiO/ZrO/Carbon and no hole-conductor or Au contact is required.A new mixed-anion perovskite of chNHPbI(BF) is applied in the perovskite solar cells through a simple one-step dripping *** the device,the perovskite distributes in all the three mesoporous layers and functions as both light harvester and hole transporter.A remarkable efficiency of 13.24% was obtained with a high fill factor of 0.76 due to the advantage of new mixed-anion perovskite in enhanced electric properties,especially hole mobility and *** could be expected that this mixed-anion strategies for adjusting the electric properties of perovskites will benefit the further development of perovskite solar cells.

关键词： mesoscopic perovskite printable mixed-anion

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cnki会议

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大庆石油地质与开发 2024年第2期43卷 145-151页

作者：关富佳林怡菲油气钻采工程湖北省重点实验室湖北武汉430100 长江大学石油工程学院湖北武汉430100 中海石油(中国)有限公司湛江分公司广东湛江524000

目前已有的天然气水合物CO_(2)置换实验的最终置换率与理论置换率75%相差较大。为了提高天然气水合物的最终置换率,从增大置换推动力的角度出发,基于混合气体中组分气体的逸度与其体积分数正相关的关系,提出了天然气水合物CO_(2)吞吐置... 详细信息

目前已有的天然气水合物CO_(2)置换实验的最终置换率与理论置换率75%相差较大。为了提高天然气水合物的最终置换率,从增大置换推动力的角度出发,基于混合气体中组分气体的逸度与其体积分数正相关的关系,提出了天然气水合物CO_(2)吞吐置换实验的新方法,即CO_(2)注入-置换-释放混合气体-CO_(2)回注-置换的多轮次吞吐置换。基于提出的实验新方法,在自行设计的反应装置中模拟了压力为2.54 MPa、温度为276.35 K条件下CO_(2)常规置换和多轮次吞吐置换ch_4水合物的置换过程。结果表明:在相同置换条件下,3个轮次吞吐置换实验的最终置换率为46%,是常规置换最终置换率31%的1.48倍;随着吞吐轮次的增加,水合物的置换率不断增大,第3轮吞吐置换实验的最终置换率从第1轮末的28%增加到46%,实验结果证明了天然气水合物吞吐置换实验新方法的正确性和可行性。研究成果进一步拓展了天然气水合物置换开采理论和方法。

关键词：天然气水合物吞吐置换逸度差置换率

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二吡啶胺三核镍金属串中的键伸缩异构现象

无机化学学报 2010年第10期26卷 1863-1867页

作者：缪晓和朱龙观浙江大学化学系杭州310027

本文报道2个新的包含[Ni3(dpa)4Cl2]组分的配合物,[Ni3(dpa)4Cl2]2ch3COch3(1)和[Ni3(dpa)4Cl2]2/3ch3CN1/3C6H14(2),其中dpa-为2,2′-二吡啶胺负离子。结合文献已经发表的5个类似配合物,发现这些结构中Ni-Ni键长有一定差异,但Ni-Cl和Ni-N键长基本没有差异,显示出较少报道的键伸缩异构现象,而这种键伸缩异构现象出现的原因是分子结构的对称与不对称引起的。

关键词：二吡啶胺镍配合物金属串键伸缩异构