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THE ADSORPTION OF OXYGEN OVER ThO2-BaF2 CATALYST

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Journal of Energy Chemistry 1996年第1期 22-30页

作者： ZHOU Xiao-Ping CHAO Zi-Sheng WAN Hui-lin tsai khi-rui(Department of Chemistry, Xiamen University Xiamen, Fujian 361005 To whom correspondence should be addressed)

The adsorption of O2 over ThO2-BaF2 catalyst was studied at room temperature. Raman experiments reveal that there is much stronger adsorption of O2 on ThO2-BaF2 than on ThO2 XRD results suggest that ionic exchange exists between BaF2 and ThO2 phases forming the O-species and quasi-free electrons in ThO2-BaF2. The XPS, Raman and EPR results indicate that O22-, O2- and intermediate oxygen species O2n- and O2δ- (1更多还原AbstractFilter('ChDivSummary', 'ChDivSummaryMore', 'ChDivSummaryReset');

关键词： oxygen species metal fluoride ThO2-BaF2

镜像量子色动力学相变解释纳赫兹随机引力波背景

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Science Bulletin 2024年第6期69卷 741-746页

作者：祖磊张弛李垚钰顾玉超蔡岳霖范一中 Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China School of Astronomy and Space Science University of Science and Technology of ChinaHefei 230026China

Several Pulsar Timing Array(PTA)Collaborations have recently provided strong evidence for a n Hz Stochastic Gravitational-Wave Background(SGWB).Here we investigate the implications of a firstorder phase transition occurring within the early Universe's dark quantum chromodynamics epoch,specifically within the framework of the mirror twin Higgs dark sector *** analysis indicates a distinguishable SGWB signal originating from this phase transition,which can explain the measurements obtained by ***,a significant portion of the parameter space for the SGWB signal also effectively resolves the existing tensions in both the H_(0) and S_(8) measurements in *** intriguing correlation suggests a possible common origin of these three phenomena for 0.2<ΔN_(eff)<0.5,where the mirror dark matter component constitutes less than 30% of the total dark matter *** CMB experiments such as CMB-S4 can test this parameter region.

关键词： Mirror twin Higgs Dark matter Phase transition Gravitational wave Pulsar timing array

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OXIDATIVE COUPlinG OF METHANE OVER Ba-La-O CATALYSTS PROMOTED WITH FLUORINE ANION

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Journal of Energy Chemistry 1995年第1期 45-51页

作者： DAI dong-Mei ZHOU Xiao-Ping CHAO Zi-ShengWANG Shui-Ju WAN Hui-lin tsai khi-ruiDepartment Chemistry, Xiamen University Xiamen, Fujian 361005

Oxidative coupling reaction of methane (OCM) was studied over Ba-La-O-F catalysts. F-anions exhibited apparent promoting effects on Ba-La-O-F catalysts for OCM reaction. Over BaF2/La2O3, C2 yield was 1 to 4 percent hi... 详细信息

关键词： oxidative coupling fluorine anion anion exchange

INSITUFTIR　SPECTRAL　STUDY　OF　THE　OXYGEN　ADSPECIES　ON　SrF2／La2O3　CATALYST　DURING　THE　OXIDATIVE　COUPlinG　OF　METHANE

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Chinese Chemical Letters 1995年第8期

作者： rui Qiang LONG Shui Qin ZHOU Ya Ping HUANG Hai You WANG Hui lin WAN khi rui tsai(Depatment of Chemistry and State Key Laboratory for Physical Chemistry of the Solid Surface,Xiamen University,Xiamen,361005)

ＩＮＳＩＴＵＦＴＩＲＳＰＥＣＴＲＡＬＳＴＵＤＹＯＦＴＨＥＯＸＹＧＥＮＡＤＳＰＥＣＩＥＳＯＮＳｒＦ＿２／Ｌａ＿２Ｏ＿３ＣＡＴＡＬＹＳＴＤＵＲＩＮＧＴＨＥＯＸＩＤＡＴＩＶＥＣＯＵＰＬＩＮＧＯＦＭＥＴＨＡＮＥ￥ＲｕｉＱｉａ... 详细信息

ＩＮＳＩＴＵＦＴＩＲＳＰＥＣＴＲＡＬＳＴＵＤＹＯＦＴＨＥＯＸＹＧＥＮＡＤＳＰＥＣＩＥＳＯＮＳｒＦ＿２／Ｌａ＿２Ｏ＿３ＣＡＴＡＬＹＳＴＤＵＲＩＮＧＴＨＥＯＸＩＤＡＴＩＶＥＣＯＵＰＬＩＮＧＯＦＭＥＴＨＡＮＥ￥ＲｕｉＱｉａｎｇＬＯＮＧ；ＳｈｕｉＱｉｎＺＨＯ...

关键词： La2O3 SrF2 ON DURING CATALYST ADSPECIES

ACTIVATION OF O2 AND CATALYTIC PROPERTIES OF CeO2/CaF2 CATALYSTS FOR METHANE OXIDATIVE COUPlinG

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Journal of Energy Chemistry 1993年第4期 280-289页

作者： ZHOU Xiao-Ping WANG Shui-Ju WENG Wei-Zheng WAN Hui-lin tsai khi-rui Department of Chemistry and State Key Laboratory for Physical Chemistry of the Solid Surface Xiamen University, Xiamen, Fujian 361005

The investigation of the catalytic properties of the CaF2modifiedCeO2catalysts for the methane oxidative coupling （MOC） to prepare C2hydro-carbons indicated that most of the CaF2modified CeO2catalysts were efficientfor the MOC reaction. Addition of CaF2to CeO2can make the C2selectivity in-crease from 2. 2％（over CeO2） to 46-63％, and the CH4conversion increasefrom 26％ to 28-30％. When the CeO2content was decreased within a defi-nite region, the activity and C2selectivity of the catalysts increased remark-ably. The XRD characterization revealed that F-—O2-exchange happened be-tween CaF2and CeO2phases. TPD, XPS, Raman and ESR experiments indicat-ed that O-, O22-and O2-species were formed over CeO2/CaF2catalysts. Withthe increase of CaF2content in the catalysts, the kinds and the surface concen-trations of the above mentioned oxygen species decreased, while the C2selectivi-ty increased.

关键词： ACTIVATION OF O2 AND CATALYTIC PROPERTIES OF CeO2/CaF2 CATALYSTS FOR METHANE OXIDATIVE COUPlinG DMC over DMA

METHANE OXIDATIVE COUPlinG ON ThO2/CaF2CATALYST

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Journal of Energy Chemistry 1995年第2期 202-211页

作者： CHAOZi-Sheng* ZHOU Xiao- PingWAN Hui-lin tsai khi-ruiDepartment of Clie-mudry, Xiamen University Xiamen, Fujian 36 1 005

The oxidative coupling of methane（OCM）over ThO/CaFcatalystwas *** catalyst was found to be active and selective for *** 1153 K,the Cyield was 19.9% with 61.7% Cselectivityand 32.1% *** results indicated that F（?）Oexchangehappened between ThOand *** and Raman results suggestedthat the active oxygen species were generated and suitable for OCM reactionover the catalyst.

关键词： methane oxidative coupling catalyst ThO2/CaF2

METHANE OXIDATIVE COUPlinG OVERALKAlinE-EARTH FLUORO-OXIDE CATALYSTS

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Journal of Energy Chemistry 1993年第4期 344-347页

作者： ZHOU Xiao-Ping ZHANG Wei-De WANG Shui-Ju WAN Hui-lin tsai khi-rui Department of Chemistry and State Key Laboratory for Physical Chemistry of the Solid Surface Xianen University Xiamen, Fujian 361005

The investigation of methane oxidative coupling （MOC） reactionover a series of alkaline-earth fluoro-oxides model catalysts indicated that theCH4conversion and C2selectivity over fluoro-oxide catalysts are apparentlyhigher than those over pure oxide or pure fluoride catalysts. The XRD charac-terization of fluoro-oxide model catalysts indicated that F-, O2-exchangemight happen.

关键词： Wang over CaO METHANE OXIDATIVE COUPlinG OVERALKAlinE-EARTH FLUORO-OXIDE CATALYSTS XRD

OXIDATIVE COUPlinG OF METHANE OVER Na_2CO_3 DOPED ZIRCONIUM DIORIDE

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Chinese Chemical Letters 1991年第12期2卷 967-970页

作者： Yong Qiang GONG, Fan Cheng WANG, Chak Tong AU, Hui lin WAN, and khi rui tsai Department of Chemistry, Xiamen University and State Key Laboratory for Physical Chemistry of the Solid Surface, Xiamen, 361005

Na_2CO_3/ZrO_2 catalyst shows a high activity of oxidative coupling of methane. It possesses stronger electron donor ability than that of ZrO_2 catalyst. The activation of methane is supposed to relate to the O_2^- or... 详细信息

关键词： than OXIDATIVE COUPlinG OF METHANE OVER Na2CO3 DOPED ZIRCONIUM DIORIDE Na CO

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Tigecycline sclerotherapy for recurrent pseudotumor in aseptic lymphocyte-dominant vasculitis-associated lesion after metal-onmetal total hip arthroplasty:A case report

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World Journal of Clinical Cases 2021年第34期9卷 10696-10701页

作者： I-Hao lin Chun-Hao tsai Department of Orthopedics China Medical University HospitalChina Medical UniversityTaichung 406040Taiwan School of Medicine China Medical UniversityTaichung 406040Taiwan Department of Sports Medicine China Medical UniversityTaichung 406040Taiwan

BACKGROUND Metal-on-metal(MoM)total hip arthroplasty(THA)has been associated with adverse reactions to metal debris,presenting clinically as *** SUMMARY This case report presents a female aged 73 year-old with MoM THA-related *** arthrotomy and bursectomy surgeries,histologic examinations of surgical specimens revealed a specific lymphocyte-dominant immunologic response,now known as aseptic lymphocyte-dominant vasculitisassociated lesion(ALVAL).Due to soft tissue persisting effusion after arthrotomy and bursectomy,revision surgery was then performed with ceramic-onpolyethylene ***,revision did not resolve the patient’s *** we describe our application of tigecycline sclerotherapy to treat recurrent pseudotumor after revision THA and no recurrence after 24-mo *** Tigecycline sclerotherapy is safe and effective in the management of recurrent pseudotumor after revision non-MoM THA in ALVAL cases.

关键词： Aseptic lymphocyte-dominant vasculitis-associated lesion Metal-on-metal total hip arthroplasty Pseudotumor Tigecycline Case report