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| 1 | Sisyphus effects in hydrogen electrochemistry on metal silicides enabled by silicene subunit edge显示文摘Nonmetal elements strictly govern the electrochemical performance of molybdenum compounds.Yet,the exact role played by nonmetals during electrocatalysis remains largely obscure.With intermetallic MoSi_2comprising silicene subunits,we present an unprecedented hydrogen evolution reaction(HER)behavior in aqueous alkaline solution.Under continuous operation,the HER activity of MoSi_2shows a more than one order of magnitude improvement in current density from 1.1 to 21.5 mA cm^(à2)at 0.4 V overpotential.Meanwhile,this activation behavior is highly reversible,such that voltage withdrawal leads to catalyst inactivation but another operation causes reactivation.Thus,the system shows dynamics strikingly analogous to the legendary Sisyphus’labor,which drops and recovers in a stepwise manner repeatedly,but never succeeds in reaching the top of the mountain.Isomorphic WSi_2behaves almost the same as MoSi_2,whereas other metal silicides with silicyne subunits,including CrSi_2and TaSi_2,do not exhibit any anomalous behavior.A thin amorphous shell of MoSi_2is observed after reaction,within which the Si remains partially oxidized while the oxidation state of Mo is basically unchanged.First-principles calculations further reveal that the adsorption of hydroxide ions on silicene subunit edges and the subsequent Si vacancy formation in MoSi_2jointly lead to the anomalous HER kinetics of the adjacent Mo active centers.This work demonstrates that the role of nonmetal varies dramatically with the electronic and crystallographic structures of silicides and that silicene structural subunit may serve as a promoter for boosting HER in alkaline media. | Zechao Zhuang Yong Li Jiazhao Huang Zilan Li Kangning Zhao Yunlong Zhao Lin Xu Liang Zhou Lyudmila V. Moskaleva Liqiang Mai | 2019 | Science Bulletin2019，64，9： | 12 |
| 2 | Ring - opening reactions ofmethylcyclopentane over metal catalysts,M = Pt,Rh,Ir,and Pd:A mechanistic study from first - principles calculations 显示文摘 | Zhao Z Moskaleva L V Rosch N | 2013 | ACSCatalysis2013，3，2： | 1 |
| 3 | Hypersensitization of multidrug resistant human ovarian carcinoma cells by pluronic P85 block copolymer 显示文摘 | ALAKHOV V Y MOSKALEVA E Y BATRAKOVA E V | 1996 | Bioconjug Chem1996，7，2： | 1 |
| 4 | Quantum ehemical/vRRKM study on the thermal decomposition of cyclopentadiene显示文摘 | TOKMAKOV I V MOSKALEVA L V LIN M C | | 0，，03： | 1 |
| 5 | Effect of modified DNA and RNA oligonucleotides on telomerase activity and tumor cell survival in vitro显示文摘 | Svinareva LV Glukhov AI Moskaleva EY | 2011 | Appl Biochem Micio2011，47，8： | 1 |
| 6 | AFP-mediated targeting: A new strategy to overcome multidrug resistance of tumor cells in vitro显示文摘 | Posypanova GA Shmyren IT | 1997 | Cell Biol Int1997，21，： | 1 |
| 7 | Effect of mod- ified DNA and RNA oligonucleotides on telomerase activity and tumor cell survival in vitro显示文摘 | Svinareva LV Glukhov AI Moskaleva EY | 2011 | kppl Biochem Micro +2011，47，8： | 1 |
| 8 | Effect of modified DNA and RNA oligonucleotides on telomerase activity and tumor cell survival in vitro显示文摘 | Svinareva LV Glukhov AI Moskaleva EY | | 0，，8： | 1 |
| 9 | Calcinosis of the pulmonary valve in trilogy of Fallot显示文摘 | Moskaleva Ⅵ | 1991 | Grud Serdechnososudistaia Khir1991，8，： | 1 |
| 10 | Comparative study of azithromycin pharmacokinetics in healthy volunteers in open cross randomized procedure 显示文摘 | PISAREV VV MOSKALEVA NE ZVERKOV IUB | 2003 | Antibiot Khimioter (in Russian)2003，48，10： | 1 |
| 11 | Molecular chaperone Hsp70 protects neuroblastoma SK-N-SH ceils from hypoxicstress 显示文摘 | Tikhonova NS Moskaleva OS Margulis BA | 2008 | Tsitologiia2008，50，5： | 1 |
| 12 | Hypersensitization of muhidrug resistant human ovarian carcinoma cells by Pluronic P85 block copolymer 显示文摘 | Alakhov VY Moskaleva EY Batrakova EV | 1996 | Bioconjugate Chem1996，7，： | 1 |
| 13 | Molecular chaperone HspT0 protects neuroblastoma SK - N - SH cells from hypoxic stress 显示文摘 | Tikhonova NS Moskaleva OS Margulis BA | 2008 | Tsitologiia2008，50，5： | 1 |
| 14 | Modeling Adsorption of the Uranyl Dication on the Hydroxylated γ-Al2 O3 (0001) Surface in an Aqueous Medium,Density Functional Study显示文摘 | Moskaleva L V Nasluzov V A Rosch N | | 0，，： | 1 |
| 15 | 大学评价及其科研政策制定中科学计量学的应用——基于俄国的实践分析显示文摘2012年10月27日下午,Prof.Olga Moskaleva在第七届科学计量学与大学评价国际会议研讨会上作了以“大学评价及其科研政策制定中科学计量学的应用——基于俄国的实践分析”为题的学术报告。 | Olga Moskaleva 楼雯 | 2012 | 评价与管理2012，10，4： | 1 |
| 16 | Molecular chaperone hsp70 protects neuroblastoma SK-N-SH cells from hypoxic stresss显示文摘 | Tikhonova NS Moskaleva OS Margulis BA | 2008 | Tsitologiia2008，50，5： | 1 |
| 17 | The role of Fas/ Fasl system in induction of hepatocyte apoptosis in chronic viral hepatitides显示文摘 | Dmitrieva EV Moskaleva Elu Kogan EA | 2003 | Arkh Patol2003，65，6： | 1 |
| 18 | Hypersensitization of multidrug resistant human ovarian carcinoma cells by pluronic P85 block copolymer 显示文摘 | ALAKHOV V Y MOSKALEVA E Y BATRAKOVA E V | 1996 | Bioconjug Chem1996，7，2： | 1 |
| 19 | 俄罗斯北堪察加Evevpenta金矿床玄武岩矿物次生蚀变特征及其成矿指示作用显示文摘俄罗斯北堪察加地区Evevpenta金矿床玄武岩主岩青磐岩化蚀变的矿物学组成,是以英安岩中的石英、冰长石-石英、石英-碳酸岩岩脉和热液角砾岩组成的脉系为特征。脉状矿物是天然金、碲化物、硫化物、硒化物和金-银氯化物。青磐岩化蚀变发生在距浅成热液脉较远的地方。然而,它的特征矿物组合对重建成矿环境有重要研究意义。在青磐岩化带内可识别出氟磷灰石-氟铝钛矿、石英-方解石-斜绿泥石、石英-方解石-硬石-蒙脱石、方解石-丝光沸石4种不同的热液蚀变组合。最早的矿物组合形成于酸性富F的热液中。热液流体中氟化物浓度为0.2~1.2 g/L,流体温度约550℃。酸性热液与橄榄玄武岩寄主岩石长期相互作用,导致pH升高至接近中性并发生绿泥石化作用。绿泥石化阶段热液富集Fe和Mg,温度约175~210℃时形成第1阶段绿泥石,120~140℃时形成第2阶段绿泥石。蚀变的最后阶段形成沸石群矿物,其在pH约为9、温度>135℃的热液中析出。热液流体的高pH值可能是由于碳酸氢盐和碳酸盐的存在以及溶液中铁盐的去除。根据青磐岩化带蚀变矿物组合特征,探讨了Evevpenta脉系形成的物理化学条件。在热液体系形成阶段,随着碱性氯化钠溶液的循环,贵金属Cl~-和OH~-络合物的形成导致了矿石元素的运移。高pH溶液也能转移硫。 | Anastasiya SERGEEVA Pavel ZHEGUNOV Elena SKILSKAIA Mariya NAZAROVA Elena KARTASHEVA Anna KUZMINA Svetlana MOSKALEVA Olesya ZOBENKO Sharapat KUDAEVA Ekaterina PLUTAKHINA Kseniya SHISHKANOVA | 2023 | 地学前缘2023，30，5： | 0 |
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