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Ag2-xO with highly exposed{111}crystal facets for efficient electrochemical oxygen evolution:Activity and mechanism

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Chinese Journal of Catalysis 2020年第11期41卷 1706-1714页

作者： Xiao-Feng Zhang Jian-sheng Li wan-sheng you Zai-Ming Zhu School of Chemistry and Chemical Engineering Liaoning Normal UniversityDalian 116029LiaoningChina

A series of Ag2–xO/FTO-i electrodes(where i denotes the current density during the electrodeposition, and i = 0.5, 1, 2, 3, 4, or 7) was fabricated in 0.1 M K2B4O7 electrolyte containing Ag+ ions by galvanostatic electrocrystallization. The electrode composition and morphology were characterized using X-ray powder diffraction, scanning electron microscopy, and X-ray photoelectron spectroscopy. The results reveal that the electrode films consist of Ag2O, but some of the Ag+ ions on the {111} crystal facets are oxidized into Ag2+ ions. Furthermore, the Ag2–xO/FTO-1 electrode shows a triangular slice shape of a parallel matrix with a larger exposed area of {111} crystal facets than other Ag2–xO/FTO-i(i = 0.5, 2, 3, 4, or 7) electrodes. Electrocatalytic experiments prove that the Ag2–xO/FTO-1 electrode produces the highest oxidative current density, has an overpotential of 417 m V at 10 m A cm–2, and has a Tafel slope of 47 m V dec–1 in 0.1 M K2B4O7. Electrochemical impedance spectra indicate that Ag2–xO/FTO-1 electrodes have the best ability for charge transfer. In addition, in the I-t test over 10 h, the current density decreased 4%. Fortunately, both O–O and Ag2+ species were detected after electrocatalysis and a possible mechanism for the oxygen evolution reaction is proposed in which the formation of Ag2+ and O–O species on {111} facets plays a critical role.

关键词： Ag2O Crystal facet Ag2+ions Electrocatalysis Water oxidation Oxygen evolution reaction

OXIDATION OF Tb(Ⅲ)IN THE HETEROPOLY-TUNGSTOPHOSPHATE COMPLEX

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Chinese Chemical Letters 1993年第4期4卷 369-370页

作者： wan sheng you Yuan Peng GU Department of Chemistry,Liaoning Normal University,Dalian,116022

It has first been reported that Tb(Ⅲ)is oxidated by K_2S_2O_8 in the heteropoly- tungstophosphate *** complex ion,[Tb(Ⅳ)(PW_(11)O_(39))_2]^(10-),is stable in aqueous solution only for hours,being graduately reduced ... 详细信息

关键词： IN THE HETEROPOLY-TUNGSTOPHOSPHATE COMPLEX OXIDATION OF Tb

SYNTHESIS OF A KETAL BY USING HPA AS CATALYST

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Chinese Chemical Letters 1994年第10期5卷 821-,222页

作者： wan sheng you Yuan Peng GU Xiao Hui LIU Xing TIAN (Department of Chemisty, Liaoning Normal University, Dalian, 116022)

The work herein reported is about a rapid and convenient synthetic method of a betal formed from ethylene glycol and cyclohexanone by using H3PW12O40(HPA)as catalyst. It has ben shown that the reaction, by using HPA as catalyst, can proceed at room temperature and have the high yield of 92% and the catalyst can be used again and again

关键词： HPA AS SYNTHESIS OF A KETAL BY USING HPA AS CATALYST

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略谈中医药现代化

上海中医药杂志 2000年第3期34卷 4-6页

作者：万友生江西南昌

一、先谈中医现代化有人认为,中西医结合就是中医现代化.这种观点值得深入分析、探讨. 当前中西医结合主要有两种形式:

关键词：中医药现代化学术探讨万友生

Carboxyltin modified trivacant Keggin-type Tungstosilicate: Synthesis and Electrocatalytic Properties

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Carboxyltin modified trivacant Keggin-type Tungstosilicate: ...

中国化学会第七届全国多酸化学学术研讨会

作者： Meng-Xuan Li Yang Zhang Xiao-Jing Sang wan-sheng you Lan-Cui Zhang Zai-Ming Zhu School of Chemistry and Chemical Engineering Liaoning Normal University

Estertin or carboxyltin can be introduced into the trivacant Keggin-type tungstosilicate system,forming functional organic-inorganic hybrid compound,but up to now,no single crystal structure has been ***,a new carboxyltin modified double trivacant Keggin-type tungstosilicate,KHCo(HO)Co(HO)[Sn(CHCHCOO)(SiWO)]·27HO (1) was synthesized by conventional *** 1 shows a sandwich-type structure composed of two[SiWO]units and two ring-like carboxyltin groups,and every two dimers are linked by one Co atom with a share of 0.5 to further form a 1D chain *** the synthetic process,the original ring-like estertin group[Sn(CH)COOCH]was hydrolyzed into carboxyltin group[Sn(CH)COO],which is a benefit for further *** 1 was characterized by IR spectroscopy,UV-vis spectroscopy,powder X-ray diffraction (PXRD),single-crystal X-ray diffraction and cyclic ***,the electrocatalytic activity of compound 1 for the reduction of NOwas also *** is found that with the increase of NOconcentration,the reduction peak current obviously increases in 0.1 mol·LKAc-HAc buffer solution (pH=4.8),which shows that compound 1 has good electrocatalytic activity towards reduction of NO.

关键词： tungstosilicate carboxyltin crystal structure electrocatalysis

来源： cnki会议评论

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间歇曝气强化SBR脱氮试验研究

武汉理工大学学报 2010年第12期32卷 95-97,116页

作者：施万胜舒友菊洛阳理工学院环境工程与化学系洛阳471023

采用间歇曝气SBR工艺处理模拟生活污水,考察了不同曝气频率(n)及进水方式下总氮的脱除效果。结果表明:在连续进水情况下,n值越大,越有利于同步硝化/反硝化和总氮的脱除;当停曝/曝气各为5 min时,总氮去除率达到87.2%。在瞬时进水情况下,... 详细信息

采用间歇曝气SBR工艺处理模拟生活污水,考察了不同曝气频率(n)及进水方式下总氮的脱除效果。结果表明:在连续进水情况下,n值越大,越有利于同步硝化/反硝化和总氮的脱除;当停曝/曝气各为5 min时,总氮去除率达到87.2%。在瞬时进水情况下,n值不可太大或太小,当停曝/曝气各为10 min时,总氮去除率达到76.5%。在其他参数相同的情况下,连续进水间歇曝气SBR工艺的脱氮效果明显优于瞬时进水间歇曝气SBR工艺。

关键词：连续进水瞬时进水间歇曝气脱氮 SBR

基于CRITIC和灰色系统理论的地铁深基坑工程施工风险评估:以岱山站深基坑工程为例

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科学技术与工程 2024年第28期24卷 12325-12332页

作者：徐世祥吴波郑卫强朱文华万友生覃君李想东华理工大学土木与建筑工程学院南昌330013 广西大学土木建筑工程学院南宁530004 南昌轨道交通集团有限公司地铁项目管理分公司南昌330038 中铁二局第六工程有限公司成都610083

为了解决深基坑工程风险评估过程中不确定因素众多,风险评估难以量化和主观性过强难题,依托南昌轨道交通3号线岱山站深基坑工程,提出一种将CRITIC(criteria importance though intercrieria correlation)客观赋权法和灰色系统理论相结... 详细信息

为了解决深基坑工程风险评估过程中不确定因素众多,风险评估难以量化和主观性过强难题,依托南昌轨道交通3号线岱山站深基坑工程,提出一种将CRITIC(criteria importance though intercrieria correlation)客观赋权法和灰色系统理论相结合的风险量化评估方法,建立了地铁深基坑工程施工期间风险评估指标体系,采用CRITIC法计算各指标的客观权重,结合灰色系统理论进行综合评估,确定地铁深基坑施工安全风险等级和风险值。结果表明:该方法能科学、可靠地评价出深基坑风险等级,减少专家主观因素带来的影响,考虑了指标间的相互联系,能够合理反映深基坑施工风险等级水平,适用于风险因素众多且模糊不定的基坑工程,可以为同类深基坑工程的风险管理提供决策依据。

关键词：深基坑风险评估 CRITIC 灰色系统理论

南昌地铁地下多管线近邻地铁人行通道的施工影响分区

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科学技术与工程 2024年第11期24卷 4679-4688页

作者：吴波郑卫强郭方雨徐世祥万友生覃君朱文华东华理工大学土木与建筑工程学院南昌330013 广西大学土木建筑工程学院南宁530004 南昌轨道交通集团有限公司地铁项目管理分公司南昌330038 中铁二局第六工程有限公司成都610083

针对地下地铁人行通道暗挖施工对近邻多管线扰动影响问题,依托南昌地铁3号线邓埠站1号出入口人行通道暗挖工程,采用数值计算与理论分析相结合的方法,系统研究了通道暗挖施工扰动作用下近邻多管线的力学特性,总结关键因素对管线力学行为... 详细信息

针对地下地铁人行通道暗挖施工对近邻多管线扰动影响问题,依托南昌地铁3号线邓埠站1号出入口人行通道暗挖工程,采用数值计算与理论分析相结合的方法,系统研究了通道暗挖施工扰动作用下近邻多管线的力学特性,总结关键因素对管线力学行为的影响规律,提出了通道暗挖下近邻密集管线影响分区计算方法与控制措施。结果表明:结合Peck曲线分布规律确定出以控制值的60%与20%作为强影响分区、弱影响分区、无影响分区的阈值;采用多元非线性函数进行拟合得出的线竖向位移与多因素的关系函数,对影响分区划分效果较好;建立的地铁隧道暗挖对近邻密集管线强弱影响分区方法,可通过有效的措施将密集管线强影响区转变为弱影响区和无影响区,进而保障施工安全。

关键词：通道暗挖多管线数值模拟影响区控制措施

Coagulation indices and fibrinogen degradation products as predictive biomarkers for tumor-node-metastasis staging and metastasis in gastric cancer

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 110-120页

作者： Yi-Qing Shen Qiu-wan Wei Yi-Ren Tian Yun-Zhi Ling Min Zhang Clinical Laboratory Civil Aviation Shanghai HospitalGubei Branch of Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200000China Clinical Laboratory Tongji Hospital of Tongji UniversityShanghai 200000China

BACKGROUND Gastric cancer(GC)is a prevalent malignancy with a substantial health burden and high mortality rate,despite advances in prevention,early detection,and *** with the global average,Asia,notably China,reports disproportionately high GC *** disease often progresses asymptoma-tically in the early stages,leading to delayed diagnosis and compromised ***,it is crucial to identify early diagnostic biomarkers and enhance treatment strategies to improve patient outcomes and reduce *** Retrospectively analyzed the clinical data of 148 patients with GC treated at the Civil Aviation Shanghai Hospital between December 2022 and December *** associations of coagulation indices-partial thromboplastin time(APTT),prothrombin time(PT),thrombin time(TT),fibrinogen,fibrinogen degradation products(FDP),fasting blood glucose,and D-dimer(D-D)with TNM stage and distant metastasis were *** Prolongation of APTT,PT,and TT was significantly correlated with the GC TNM ***,abnormal coagulation system activation was closely related to disease *** FDP and D-D were significantly associated with distant metastasis in GC(P<0.05),suggesting that increased fibrinolytic activity contributes to increased metastatic *** Our Results reveal coagulation indices,FDPs as GC biomarkers,reflecting abnormal coagulation/fibrinolysis,aiding disease progression,metastasis prediction,and helping clinicians assess thrombotic risk for early intervention and personalized treatment plans.

关键词： Coagulation indexes Fibrinogen degradation products Gastric cancer Tumor-node-metastasis staging Distant metastasis