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Insight into the Role and Evidence of Oxygen Vacancies in Porous Single-Crystalline Oxide to Enhance Catalytic Activity and Durability

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Research 2024年第2期2023卷 675-683页

作者： Lingting ye Jiaming Ma Jie Zhang Wen Yin Yuanguang Xia Kui Xie Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujan Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian 350002China fujian Science&Technology Innovation Laboratory for Optoelectronic Information of china FuzhouFujian 350108China Advanced Energy Science and Technology Guangdong Laboratory 29 Sanxin North RoadHuizhouGuangdong 116023China Spallation Neutron Source Science Center DongguanGuangdong 523803China

Introducing and stabilizing oxygen vacancies in oxide catalysts is considered to be a promising strategy for improving catalytic activity and ***,we quantitatively create oxygen vacancies in the lattice of porous single-crystallineβ-Ga_(2)O_(3)monoliths by reduction treatments and stabilize them through the long-range ordering of crystal lattice to enhance catalytic activity and *** combination analysis of time-of-flight neutron powder diffraction and extended x-ray absorption fine structure discloses that the preferential generation of oxygen vacancy tends to occur at the site of tetrahedral coordination oxygen ions(O_(Ⅲ)sites),which contributes to the formation of unsaturated Ga-O coordination in the monoclinic *** oxygen vacancies are randomly distributed in lattice even though some of them are present in the form of domain defect in the PSC Ga_(2)O_(3)monoliths after the reduction *** number of oxygen vacancies in the reduced monoliths gives 2.32×10^(13),2.87×10^(13),and 3.45×10^(13)mg^(-1)for the Ga_(2)O_(2.952),Ga_(2)O_(2.895),and Ga_(2)O_(2.880),*** therefore demonstrate the exceptionally high C_(2)H_(4)selectivity of~100%at the C_(2)H_(6)conversion of~37%for nonoxidative dehydrogenation of C_(2)H_(6)to C_(2)H_(4).We further demonstrate the excellent durability even at 620℃for 240 h of continuous operation.

关键词： durability coordination Oxygen

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Synthesis and Crystal Structure of Compound〔Zn （S6）（CH3C5H4N）2〕

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Chinese Journal of Structural Chemistry 1995年第Z1期 369-372页

作者： Hong-Jun (Department of Chemistry, fuzhou University, fuzhou,fujian 350002)Sheng Tian-Lu Wu Xin-Tao (State Key Laboratory of Structural Chemistry, fujian institute of Research on the Structure of Matter, Chinese academy of sciences,fuzhou, fujian,350002)

ＳｙｎｔｈｅｓｉｓａｎｄＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅｏｆＣｏｍｐｏｕｎｄ〔Ｚｎ（Ｓ６）(ＣＨ３Ｃ５Ｈ４Ｎ)２〕￥ＬｉＨｏｎｇ－Ｊｕｎ(ＤｅｐａｒｔｍｅｎｔｏｆＣｈｅｍｉｓｔｒｙ，ＦｕｚｈｏｕＵｎｉｖｅｒｓｉｔｙ，Ｆ... 详细信息

ＳｙｎｔｈｅｓｉｓａｎｄＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅｏｆＣｏｍｐｏｕｎｄ〔Ｚｎ（Ｓ６）(ＣＨ３Ｃ５Ｈ４Ｎ)２〕￥ＬｉＨｏｎｇ－Ｊｕｎ(ＤｅｐａｒｔｍｅｎｔｏｆＣｈｅｍｉｓｔｒｙ，ＦｕｚｈｏｕＵｎｉｖｅｒｓｉｔｙ，Ｆｕｚｈｏｕ，Ｆｕｊｉａｎ３?..

关键词： molecular structure 3-methylpridrine zinc compound

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Crystal Structure of Bis｛1-(2-methoxyethyl)indenyl｝dysprosium Chloride

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Chinese Journal of Structural Chemistry 2000年第4期19卷 253-258页

作者： XIE Mei Hua ② HAO Xue Shi MA Huai Zhu (institute of Organic Chemistry, Anhui Normal University, Wuhu Anhui 241000) WU Qiang Jin HUANG Zi Xiang (fujian institute of Research on the Structure of Matter, the Chinese academy of sciences, 安徽师范大学安徽芜湖 2 41 0 0 0 中科院福建物质结构所福建福州 350 0 0 2

The title complex bis｛1 (2 methoxyethyl)indenyl｝dysprosium chloride ((CH 3OCH 2CH 2C 9H 6) 2DyCl, M r =544.42) crystallizes in the triclinic,space group P 1(No.2) with unit cell parameters a = 10.326(1), b = 10.591(1), c = 20.256(3) , α = 91.543(9), β = 97.69(1), γ = 94.754(9)°, V=2186.2(9)  3, Z = 4, F(000)=1076, D C= 1.65g/cm 3, μ =35.87cm -1, R =0.042 and R w =0.051 for 6193 observed reflections with I>3σ(I ). X ray crystal structure study shows there are two crystallographically independent molecules A and B (A=(CH 3OCH 2CH 2C 9H 6) 2 Dy(1) Cl, B=(CH 3OCH 2CH 2C 9H 6) 2Dy(2)Cl) in an asymmetric unit of the title complex. Each molecule was unsolvated monomeric molecule with a trans arrangement of both the sidearms and indenyl rings.

关键词： methoxyethyl)indenyl ligand dysprosium crystal structure.

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Synthesis and Crystal Structure of MnSm4（SiO4）3O

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Chinese Journal of Structural Chemistry 1996年第2期15卷 113-116页

作者： Chi Li-Sheng Deng Shui-Quan Zhuang Hong-Hui Huang Jin-Shun (State Hey laboratory of Structural Chemistry,fujian institute of Research on the Structure of Matter,Chinese academy of Scimces,fuzhou,fujian 350002,P.R.china) State Key Lab. of Struct. Chemistry Fujian Inst. Res. Struct. of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China

ＳｙｎｔｈｅｓｉｓａｎｄＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅｏｆＭｎＳｍ４（ＳｉＯ４）３Ｏ￥ＣｈｉＬｉ－Ｓｈｅｎｇ；ＤｅｎｇＳｈｕｉ－Ｑｕａｎ；ＺｈｕａｎｇＨｏｎｇ－Ｈｕｉ；ＨｕａｎｇＪｉｎ－Ｓｈｕｎ；(ＳｔａｔｅＨｅｙ... 详细信息

ＳｙｎｔｈｅｓｉｓａｎｄＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅｏｆＭｎＳｍ４（ＳｉＯ４）３Ｏ￥ＣｈｉＬｉ－Ｓｈｅｎｇ；ＤｅｎｇＳｈｕｉ－Ｑｕａｎ；ＺｈｕａｎｇＨｏｎｇ－Ｈｕｉ；ＨｕａｎｇＪｉｎ－Ｓｈｕｎ；(ＳｔａｔｅＨｅｙｌａｂｏｒａｔｏｒｙｏｆＳｔｒ?..

关键词： rare earth compound apatite analog crystal structure

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Syntheses and Characterizations of （4-NH2C6H4S）4Sn and （4-NH2C6H4S）2（4-NH3C6H4S）2Sn]Cl2

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Chinese Journal of Structural Chemistry 2005年第1期 79-83页

作者： WANG Long-Sheng ZHANG Jian-Jun DU Wen-Xin HU Sheng-Min fu Rui-Biao XIA Sheng-Qing WU Xin-Tao XIANG Sheng-Chang LI Ya-Min fu Zhi-Yong (State Key Laboratory of Structural Chemistry, fujian institute of Research on the Structure of Matter, The Chinese academy of sciences, fuzhou, fujian 350002, china)

The title compounds (4-NH2C6H4S)4Sn 1 and [(4-NH2C6H4S)2(4-NH3C6H4S)2- Sn]Cl2 2 have been synthesized and their crystal structures were determined by X-ray diffraction study. 1 crystallizes in monoclinic, space group P21/m, a = 8.8431(6), b = 15.2944(10), c = 9.1974(7) ?, β = 93.835(2)°, V = 1241.16 (15) ?3, Z = 2, Mr = 615.40, Dc = 1.647 g/cm3, F(000) = 620, μ = 1.387 mm-1, the final R = 0.0439 and wR = 0.1120 for 1892 observed reflections (I > 2σ(I)). 2 crystallizes in monoclinic, space group C2/c, a = 31.0848(2), b = 7.9685(3), c = 11.7213(4) ?, β = 97.228(2)°, V = 2880.28(15) ?3, Z = 4, Mr = 688.32, Dc = 1.5877 g/cm3, F(000) = 1384, μ = 1.384 mm-1, the final R = 0.0416 and wR = 0.1269 for 1968 observed reflections with I > 2σ(I). The Sn4+ ions in 1 and 2 are coordinated to four sulfur atoms with highly and slightly distorted tetrahedral configurations, respectively.

关键词： tin-sulphur complex 4-aminobenzenethiol hydrogen bond weak interaction

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LOCALIZED MOLECULAR ORBITAL STUDY ON ELECTRONIC STRUCTURES OF BOWL-SHAPED AROMATIC HYDROCARBONS

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Chinese Chemical Letters 1993年第11期4卷 963-964页

作者： Zhi Da CHEN Chun Wan LIU Jia Xi LU fujian institute of Research on the Structure of Matter, Chinese academy of sciences State Key Laboratory of Structural Chemistry, fuzhou, fujian 350002

The localized molecular orbitals for typical bowl-shaped circulenes are obtained by the use of INDO-LMO method. It is found that these bowl-shaped circulenes with strained π-electron systems are still aromatic and th... 详细信息

关键词： In LOCALIZED MOLECULAR ORBITAL STUDY ON ELECTRONIC STRUCTURES OF BOWL-SHAPED AROMATIC HYDROCARBONS 工工

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Micro－area　Infrared　Spectroanalysis　of　Inclusions　in　Lithium　Triborate　Crystals

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Chinese Journal of Structural Chemistry 1996年第2期15卷 106-108页

作者： Tang Ding-Yuan zheng Yu Lan An-Jian Li Li Zhao Qing-Lan (fujian institute of Research on the Structure of Matter,Chinese academy of Scrences,fuzhou 350002) Zhong Wei-Zhuo Hua Su-Kun (Shanghai institute of Ceramics,Chinese academy of sciences,Shanghai 2018 fujian Inst. Res. Struct. of Matter Chinese Academy of Sciences Fuzhou 350002 Shanghai institute of Ceramics Chinese Academy of Sciences Shanghai 201800

Ｍｉｃｒｏ－ａｒｅａＩｎｆｒａｒｅｄＳｐｅｃｔｒｏａｎａｌｙｓｉｓｏｆＩｎｃｌｕｓｉｏｎｓｉｎＬｉｔｈｉｕｍＴｒｉｂｏｒａｔｅＣｒｙｓｔａｌｓ￥ＴａｎｇＤｉｎｇ－Ｙｕａｎ；ＺｈｅｎｇＹｕ；ＬａｎＡｎ－Ｊｉａｎ；ＬｉＬ... 详细信息

Ｍｉｃｒｏ－ａｒｅａＩｎｆｒａｒｅｄＳｐｅｃｔｒｏａｎａｌｙｓｉｓｏｆＩｎｃｌｕｓｉｏｎｓｉｎＬｉｔｈｉｕｍＴｒｉｂｏｒａｔｅＣｒｙｓｔａｌｓ￥ＴａｎｇＤｉｎｇ－Ｙｕａｎ；ＺｈｅｎｇＹｕ；ＬａｎＡｎ－Ｊｉａｎ；ＬｉＬｉ；ＺｈａｏＱｉｎｇ－Ｌａｎ；（Ｆ...

关键词： Iithium triborate inclusion negative crystal infrared spectrum

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A New Ionic Trimolybdenum Cluster Compound:〔Mo_3S_7(S_2P(iprO)_2)_3〕〔S_2P(iprO)_2〕

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Chinese Journal of Structural Chemistry 1998年第2期17卷 137-141页

作者： YU Rong-Min LU Shao-Fang HUANG Xiao-Ying WU Qiang-Jin HUANG Jian-Quan(State Key Laboratory of Structural Chemistry, fujian institute of Research on the Structureof Matter, Chinese academy Of sciences, fuzhou, 350002, china) State Key Lab. of Struct. Chemistry Fujian Inst. Res. Struct. of Matter Chinese Academy of Sciences Fuzhou 350002 China fuzhou University China

The title compound ttris-(diisopropyldithiophosphato)tris-μ-disulfidoμ3,-sulfido-cvclo-trimolybdenumj (3Mo-Mo) [diisopropyldithiophosphate], [Mo3S7 (S2P(iprO)2)3] [S2P(iprO)2] (Mr=1365. 39) is an ionic species which consists of a discretecluster cation [Mo3S7 (S2P (iprO)2)3] + (ipr = isopropyl) and an anion [S2P (iprO)2]-It was synthesized from the reaction of (NH4)2MoS4 with HS2P (iprO)2. Crystallo-graphic data for its crystal: space group for 7356 independent reflec-'tions with The structure analysis reveals that the cation contains a typical(Mo3 (μ3,-S) (μ-S2)3]+ cluster core in which three molybdenum atoms form an isoscelestriangle;the structure of the free diisopropyldithiophosphate anion [S2P (iprO)2]- isdifferent obviously from the coordinated one.

关键词： Mo-S cluster ionic cluster structure

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Synthesis and Structure of[HOCH₂CH₂N（CH₃）₃]₄[Cu₄OCl₁₀]

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Chinese Journal of Structural Chemistry 1994年第5期13卷 385-388页

作者： Wu Ding-Ming Huang Xiao-Ying Zhuang Hong-Hui(State Key Laboratory of Structural Chemistry,fujian institute of Research on the Structure of Matter, Chinese academy of sciences,fuzhou,fujian,350002)

The title compound,C10H56Cl10Cu4N4O5,Mr=1041.40,has been prepared by reaction of CuCl and choline chloride in *** crystallizes in the monoclinic system,space group C2/c with a= 22.55 (1),b=10.442(2),c=18.742(3),β=113.40(3)°,V=4050(3)3,Z=4,λ(MoKα)=0.71069,F(000)=2120,Dc=1.71 g/cm3 and μ(MoKα)=27.81 *** structure was solved by direct methods and refined by full-matrix least squares to final R and Rω values:0.070 and 0.076,*** tetranuclear anion contains a central oxide ion coordinated tetrahedrally to four copper(Ⅱ) ions;the copper(Ⅱ) ions are bridged in pairs by six chloride *** remaining four chloride ions completed a trigonal-bipyramidal coordination sphere around each copper(Ⅱ) *** are two crystallographically independent and virtually identical cations in each asymmetrical unit.

关键词： Cu4] complex synthesis crystal structure

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Structure of the Heterobimetallic Linear-Chain Polymeric Complex [NH_4]_n [WAgS_4]_n and Influence of Cationic Valence State on Configurations of Polymeric W/Ag/S Complexes

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Chinese Journal of Structural Chemistry 1997年第4期16卷 253-257页

作者： HUANG Qun WU Xin-Tao LU Jia-Xi(State Key Laboratory of Structural Chemistry, fujian institute of Research onthe Structure of Matter, the Chinese academy of sciences, fuzhou 350002) 中科院福建物质结构所结构化学国家重点实验室福建福州

The title complex [NH4]n [WAgS4]n crystallizes in the tetragonalspace group I4 with crystallographic parameters: a = b = 7. 994 (2 ), c = 5. 855 (2 ):A,V = 373. g(2) A3, Z=2, Dc= 3. 89 g/cm3, F(000) = 392, μ= 19. 27 mm-l , A(MoKα) = 0. 71069, Mr = 438. 01, and the convergence factors R = 0. 045, Rw =0. 055 for 341 observed reflections (I>3σ(I)). The anion structure can be viewed as apolymeric single chain consisting of unlimited extended rhombic fragruents of -AgS2W-which are alternately perpendicular to each other. Additionally, influence of di- and tri-valent complex cations on the assembIy of WS2-4 and Ag+ is briefly discussed.

关键词： tungsten complex silver complex polymeric linear-chain complex crystal structure

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