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Erratum to:Phase-pure two-dimensional Fe_(x)GeTe_(2)magnets with near-roomtemperature T_(C)

Nano Research 2024年第6期17卷 5757-5757页

作者： Govindan Kutty Rajendran Nair Zhaowei Zhang Fuchen Hou Ali Abdelaziem Xiaodong Xu Steve Wu Qing Yang Nan Zhang Weiqi Li Chao Zhu Yao Wu Heng Weiling Lixing Kang teddy salim Jiadong Zhou Lin Ke Junhao Lin Xingji Li Weibo Gao Zheng Liu School of Material Science and Engineering Nanyang Technological University50 Nanyang Ave639798Singapore Division of Physics and Applied Physics School of Physical and Mathematical SciencesNanyang Technological University21 Nanyang Link637371Singapore Department of Physics Southern University of Science and TechnologyShenzhen 518055China Institute of Materials Research and Engineering Agency for Science Technology and Research(A*STAR)2 Fusionopolis Way138634Singapore School of Material Science and Engineering School of PhysicsHarbin Institute of TechnologyHarbin 150001China Shenzhen Key Laboratory of for Advanced Quantum Functional Materials and Devices Southern University of Science and TechnologyShenzhen 518055China National Institute of Laser Enhanced Sciences(NILES) Cairo UniversityGiza 12613Egypt CINTRA CNRS/NTU/THALES UMI 3288Research Techno Plaza637553Singapore School of Electrical and Electronic Engineering Nanyang Technological University50 Nanyang Ave639798Singapore

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直接化学气相沉积法制备二维钴铁氧体用于高效析氧反应

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Chinese Journal of Catalysis 2023年第12期55卷 265-277页

作者：吴尧杨杰夫郑媚胡点轶 teddy salim 汤碧珺刘政李述周南洋理工大学材料科学与工程学院新加坡南洋理工大学分析表征测试与模拟中心新加坡南洋理工大学电气电子工程学院光子学研究所新加坡法国国家科学研究中心-南洋理工大学-法国泰雷兹集团研究联盟新加坡

二维(2D)过渡金属氧化物(TMO)的地球丰度高,并且具有独特的物理化学性质和较好的催化性能,是新能源工业领域中非常有应用前景的电催化剂.然而,由于合成高质量和可控厚度的2D TMO具有一定的难度,目前有关2D TMO的微观电化学研究的报道较... 详细信息

二维(2D)过渡金属氧化物(TMO)的地球丰度高,并且具有独特的物理化学性质和较好的催化性能,是新能源工业领域中非常有应用前景的电催化剂.然而,由于合成高质量和可控厚度的2D TMO具有一定的难度,目前有关2D TMO的微观电化学研究的报道较少.本文采用化学气相沉积法直接合成了2D钴铁氧体(CoFeO),所制得的2D CoFeO呈现结晶性良好的超薄尖晶石结构,其最薄厚度可达到6.8 nm.采用超微电极测试平台考察了碱性条件下2DCoFeO催化析氧反应(OER)的性能.结果表明,2D CoFeO(111)面在10 m Acm^(-2)的电流密度下表现出330 m V的低过电位,在570 m V的过电位下表现出142 m Acm^(-2)的高电流密度.密度泛函理论计算发现2DCoFeO表面上的双金属位点降低了反应能垒.此外,2DCoFeO的超薄厚度使体电阻率降低,同时增加了活性位点的利用率,进而提高了对OER的催化活性,这与在超微电极平台上测得的2D CoFeO厚度-OER活性依赖关系的结果一致.本研究还合成了大面积的2D CoFeO薄膜,其标准三电极体系研究表明2D CoFeO样品仍然表现出较高的催化OER活性和较好的寿命,说明所制备的2D CoFeO具有较好的实际应用潜力.综上,本文采用气相化学沉积法直接合成了超薄2DCoFeO纳米片,其最薄厚度可达6.8 nm,2DCoFeO表现出良好的OER性能,为2DTMOs电催化剂的可控合成开辟了新途径.此外,本文还分析了2DCoFeO电催化OER反应的机理,为二维电催化剂设计提供了新思路.

关键词：二维过渡金属氧化物化学气相沉积超微电极测试析氧反应

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Phase-pure two-dimensional Fe_(X)GeTe_(2) magnets with near-room-temperature Tc

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Nano Research 2022年第1期15卷 457-464页

作者： Govindan Kutty Rajendran Nair Zhaowei Zhang Fuchen Hou§ Ali Abdelaziem Xiaodong Xu Steve Wu Qing Yang Nan Zhang Weiqi Li Chao Zhu Yao Wu Heng Weiling Lixing Kang teddy salim Jiadong Zhou Lin Ke Junhao Lin Xingji Li Weibo Gao Zheng Liu School of Material Science and Engineering 50 Nanyang Ave639798Singapore Division of Physics and Applied Physics School of Physical and Mathematical SciencesNanyang Technological University21 Nanyang Link637371 Singapore Department of Physics Southern University of Science and TechnologyShenzhen 518055China Institute of Materials Research and Engineering Agency for Science Technology and Research(A*STAR)2 Fusionopolis WaySingapore 138634Singapore School of Material Science and Engineering School of PhysicsHarbin Institute of TechnologyHarbin 150001China Shenzhen Key Laboratory of for Advanced Quantum Functional Materials and Devices Southern University of Science and TechnologyShenzhen 518055China National Institute of Laser Enhanced Sciences(NILES) Cairo UniversityGiza 12613Egypt CINTRA CNRS/NTU/THALES UMI3288Research Techno Plaza637553Singapore School of Electrical and Electronic Engineering Nanyang Technological University50 Nanyang Ave639798Singapore

Two-dimensional(2D)ferromagnets with out-of-plane(OOP)magnetic anisotropy are potential candidates for realizing the next-generation memory devices with ultra-low power consumption and high storage ***,a scalable approach to synthesize 2D magnets with OOP anisotropy directly on the complimentary metal-oxide semiconductor(CMOS)compatible substrates has not yet been mainly explored,which hinders the practical application of 2D *** work demonstrates a cascaded space confined chemical vapor deposition(CS-CVD)technique to synthesize 2D FexGeTe_(2) *** weight fraction of iron(Fe)in the precursor controls the phase purity of the as-grown *** a result,high-quality Fe_(3)GeTe_(2) and Fe_(5)GeTe_(2) flakes have been grown selectively using the CS-CVD *** temperature(Tc)of the as-grown FexGeTe2 can be up to-280 K,nearly room *** thickness and temperature-dependent magnetic studies on the Fe_(5)GeTe_(2) reveal a 2D Ising to 3D XY ***,Terahertz spectroscopy experiments on Fe_(5)GeTe_(2) display the highest conductivity among other FexGeTe_(2) 2D *** results of this work indicate a scalable pathway for the direct growth and integration of 2D ternary magnets on CMOS-based substrates to develop spintronic memory devices.

关键词： cascaded space confined chemical vapor deposition(CVD) van der Waals(vdW) ferromagnetism out of plane anisotropy iron germanium telluride terahertz

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Recent SARS-CoV-2 Outlook and Implications in a COVID-19 Vaccination Era

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Infectious Microbes & Diseases 2021年第3期3卷 125-133页

作者： teddy Ehianeta Said Abdulrahman salim Mzee Muslimat Kehinde Adebisi Oluwayemisi Ehianeta Institute of Biological Chemistry “Academia Sinica”TaipeiTaiwanChina Jiangbing Hospital Affiliated to Jiangsu UniversityZhenjiangJiangsuChina University of Windsor WindsorOntarioCanada Taiwan University of Science and Technology TaipeiTaiwanChina

While repurposed drugs came in handy earlier in the wake of the coronavirus disease 2019(COVID-19)pandemic,vaccination has been considered a more sustainable *** recent spikes have been linked to“double,”“triple,”and even multi-mutant variants,thus renewing calls for deeper structural and functional insights of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)as a lead to rationale design of therapeutics,vaccines,and point-of-care *** is a repertoire of findings from the earliest SARS-CoV-2 molecular mimicry to evade host immunity cum host immune responses to the role of the viral glycocalyx in modulating the susceptibility and severity of infection through attraction and repulsive ***,molecular studies of some viral components that aid infection in the face of vaccination seem *** addition,the wave of infections and the attendant case fatality ratios have necessitated the need for emergency use authorizations for COVID-19 vaccines and in vitro *** review provides key updates of SARS-CoV-2,current antigenic and formulation strategies,with emergency use authorizations considerations for future vaccine candidates and *** also premise that despite the difficulty in modeling and analyzing glycans,understanding and exploiting their roles in the SARS-CoV-2 architecture is fundamental to glycan-based COVID-19 vaccines devoid of inconsistent clinical outcomes.

关键词： breakthrough infections COVID-19 EUA immune response SARS-CoV-2 vaccine

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