1. Cover of Nature Materials: Electrical excitation and tuning of exciton polarization in carbon nanotube microcavities Designed and constructed by Professor Malte C. Gather of the University of St. Andrews and Professor Jana Zaumseil of the University of Heidelberg, Germany Single-walled carbon nanotubes (SWCNTs) with outstanding photoelectric purification characteristics combined with microcavity integration and light emission field effect transistors. Effective electric pumping of excited polarons at room temperature with current densities up to >10 kA cm-2 and tunability in the near-infrared region of electroluminescence (EL) narrow band width (1060 nm-1530 nm) ). In addition, the thermal-polaron and exciton-polaron pumping rates of SWCNTs are 104 times higher than current organic polaron devices, and the coupling strength (Rabi splitting) can be directly controlled by applying a gate voltage. Sub-emission, the polarization is increased by ten times. This powerful combination of materials and devices opens up a new direction for the preparation of carbon-based polaron emitters or lasers. 
2. Cover of Nature Nanotechnology: Lithium diffusion rate in double-layer graphene is faster than diffusion of sodium chloride in liquid water. German Max-Planck Institute Jurgen H. Smet (corresponding author) and others have developed double-layer graphene as a single A phase-mixed conductor that exhibits a faster diffusion of Li than graphite, even exceeding the diffusion of sodium chloride in liquid water. To measure Li diffusion, an on-chip electrochemical cell structure was developed in which the redox reaction of the Li intercalation was forced to be confined only to the protrusions of the device such that the graphene bilayer was not disturbed by the electrolyte during operation. Time-dependent Hall measurements were performed on spatially displaced Hall probes to monitor in-plane Li diffusion kinetics within the graphene bilayer and measure diffusion coefficients up to 7 x 10-5 cm2 s-1. 
3, Nature Chemistry Cover: high oxidation state of the metal catalyst ligand effect valent metal catalyst, such as titanium (IV) such as to affect the polymerization of olefins by the reaction of our lives. In any catalytic reaction, not only the metal but also the appropriate ancillary ligand should be selected. Aaron L. Odom (Corresponding author) and others at Michigan State University have shown that new parameters obtained from high-priced chromium can quantitatively determine the effect of ancillary ligands on catalytic rates and, in some cases, provide information on reaction mechanisms. Analysis of the reaction in this manner can be used to design a better catalyst structure. 
4. JACS cover: Formation of colloidal inorganic nanocrystalline films by chemical conversion of surface-induced ligands. In the past few decades, colloidal inorganic nanocrystals (NCs), more specifically semiconductor quantum dots (QDs), have become Key materials for the development of nanoscience and nanotechnology are used in a wide range of fields such as optoelectronics and biotechnology. The Italian Institute of Technology Liberato Manna (communication author) and others summarized the results of the research on direct lithography of NCs film over the past 20 years, highlighting the latest developments in the 2014 data and providing potential future developments for this technology. 
5. JACS cover: High-activity electrocatalysts containing boron ocene subunits for oxygen evolution The development of non-precious hydrogen evolution electrocatalysts capable of operating at high current densities is very important for achieving water decomposition technology. Jilin University Zhu Pinwen, Wei Chen, Associate Professor Zou Xiaoxin, and Tewodros Asefa (Common Communications) of the State University of New Jersey proposed a combined theoretical and experimental study to identify α-phase molybdenum octanol (α-MoB2) containing boraxene subunits. It is a non-precious metal electrocatalyst for the hydrogen evolution reaction (HER). Theoretical analysis shows that, unlike the surface of Pt and MoS2-based catalysts, α-MoB2 can maintain high catalytic activity even in a very high hydrogen coverage range, and obtain a high-density effective catalytic active site. 
6. Angew. Chem. Int. Ed. Cover: Terpene Quantum Dots Synthesis and Applications: As a Near-Infrared Photothermal Agent for Cancer Therapy Photothermal therapy (PTT) has shown tremendous potential for cancer treatment. However, the development of nanomaterials (NMs) photothermal agents (PTAs) with satisfactory photothermal conversion efficiency (PTCE) and biocompatibility remains a challenge. Zhang Wei from Shenzhen University, Jinjun Shi from Harvard University, and Omid C. Farokhzad (Common Communications) have developed a new generation of PTAs based on two-dimensional (2D) 锑 quantum dots (AMQDs) through a novel liquid stripping method. Surface modification of AMQDs with polyethylene glycol (PEG) significantly enhances biocompatibility and stability in physiological media. AMQDs with PEG coating showed 45.5% PTCE, which is higher than many other NMs-based PTAs such as graphene, Au, MoS2, and black phosphorus (BP). 
7, Adv Mater Cover: nanoporous material: integration step for controlled organic transition resistance resistor having a high density integrated memory architecture reduced ability to sub-nanometer, making it the most promising nanoelectronics. Nanjing University of Posts and Telecommunications, Yi Mingdong, Jie Linghai, and Huang Wei (Common Communications) and others systematically studied the resistance based on the widely used Al/organic/indium tin oxide (ITO) vertical structure and poly(9-vinylcarbazole). Transformation (RS) behavior. Nano-scale Al filaments with dynamic gap regions (DGZ) were directly observed using in-situ scanning transmission electron microscopy (STEM), indicating that RS behavior is associated with random formation of spliced ​​filaments composed of Al and oxygen vacancies. The randomness of filament formation can be suppressed by introducing a tapered contact by a one-step integration method. 
8. Adv. Mater. Cover: Water Decomposition: Artificial blades with floating and flat design can be applied to various natural environments as a promising means of solar energy conversion. Electrolysis technology based on photovoltaic (PV) cells has gradually caused The attention of researchers, especially through the decomposition of solar water, produces hydrogen. Kijung Yong (corresponding author) and others at Pohang University of Science and Technology highlighted the design and function of monolithic photoelectrolysis systems (so-called artificial blades) used in various environments. The uniquely designed artificial leaf system promotes the water splitting reaction by combining the upper PV cell with a single-sided electrode in a compact 2D catalytic structure. This feature maximizes solar energy utilization and is easily recyclable.
9. Adv. Mater. Cover: Thermodynamically stable synthesis of transition metal sulfide (TMDC) monolayers of large-scale, highly crystalline transition metal sulfur monolayers and their monopolar nn heterojunction devices due to their unique electronic and optical properties It is a promising material for atomic-scale electronic films. However, large-area uniform growth of TMDC monolayers with large particle sizes remains a considerable challenge. Oxford University Seung Nam Cha, Jung Inn Sohn (Communications) and others have proposed a simple and effective method for large-scale and highly crystalline molybdenum disulfide monolayers using solution-treated precursor deposits. The low supersaturation caused by the evaporation of a very thin precursor layer significantly reduces the nucleation density in a thermodynamically stable environment, resulting in a uniform and clean monolayer film and a large crystal size of up to 500 μm.
10. Cover of ACS Nano: Engineering nanofiltration accelerates the oxygen in the air of palladium nanowire H2 sensor. It hinders the H2 detection of palladium-based (Pd) H2 sensors (including Pd nanowires) and suppresses the sensitivity of air to N2 or Ar. Delayed response/recovery speed. The Institute of Science and Technology of the United States, Il–Doo Kim, and the University of California, Irvine, Reginald M. Penner (Common Communications) and others described the preparation of the H2 sensor, which is to assemble a nanofiltration layer composed of a Zn metal-organic framework (MOF) into Pd NWs. on. The polyhedral particles of the Zn-based zeolite imidazole skeleton (ZIF-8) were synthesized on Pd NWs, resulting in the production of the ZIF-8/Pd NWs double-layer H2 sensor. The ZIF-8 filter has a number of micropores (gas diffusion of 0.34 nm) which allows the passage of hydrogen molecules with a dynamic diameter of 0.289 nm and, more importantly, Pd filtered by a ZIF-8 membrane (Pd NWs@ZIF-8). NWs reduces the magnitude of the H2 response. 
2. Cover of Nature Nanotechnology: Lithium diffusion rate in double-layer graphene is faster than diffusion of sodium chloride in liquid water. German Max-Planck Institute Jurgen H. Smet (corresponding author) and others have developed double-layer graphene as a single A phase-mixed conductor that exhibits a faster diffusion of Li than graphite, even exceeding the diffusion of sodium chloride in liquid water. To measure Li diffusion, an on-chip electrochemical cell structure was developed in which the redox reaction of the Li intercalation was forced to be confined only to the protrusions of the device such that the graphene bilayer was not disturbed by the electrolyte during operation. Time-dependent Hall measurements were performed on spatially displaced Hall probes to monitor in-plane Li diffusion kinetics within the graphene bilayer and measure diffusion coefficients up to 7 x 10-5 cm2 s-1. 3, Nature Chemistry Cover: high oxidation state of the metal catalyst ligand effect valent metal catalyst, such as titanium (IV) such as to affect the polymerization of olefins by the reaction of our lives. In any catalytic reaction, not only the metal but also the appropriate ancillary ligand should be selected. Aaron L. Odom (Corresponding author) and others at Michigan State University have shown that new parameters obtained from high-priced chromium can quantitatively determine the effect of ancillary ligands on catalytic rates and, in some cases, provide information on reaction mechanisms. Analysis of the reaction in this manner can be used to design a better catalyst structure. 4. JACS cover: Formation of colloidal inorganic nanocrystalline films by chemical conversion of surface-induced ligands. In the past few decades, colloidal inorganic nanocrystals (NCs), more specifically semiconductor quantum dots (QDs), have become Key materials for the development of nanoscience and nanotechnology are used in a wide range of fields such as optoelectronics and biotechnology. The Italian Institute of Technology Liberato Manna (communication author) and others summarized the results of the research on direct lithography of NCs film over the past 20 years, highlighting the latest developments in the 2014 data and providing potential future developments for this technology. 5. JACS cover: High-activity electrocatalysts containing boron ocene subunits for oxygen evolution The development of non-precious hydrogen evolution electrocatalysts capable of operating at high current densities is very important for achieving water decomposition technology. Jilin University Zhu Pinwen, Wei Chen, Associate Professor Zou Xiaoxin, and Tewodros Asefa (Common Communications) of the State University of New Jersey proposed a combined theoretical and experimental study to identify α-phase molybdenum octanol (α-MoB2) containing boraxene subunits. It is a non-precious metal electrocatalyst for the hydrogen evolution reaction (HER). Theoretical analysis shows that, unlike the surface of Pt and MoS2-based catalysts, α-MoB2 can maintain high catalytic activity even in a very high hydrogen coverage range, and obtain a high-density effective catalytic active site. 6. Angew. Chem. Int. Ed. Cover: Terpene Quantum Dots Synthesis and Applications: As a Near-Infrared Photothermal Agent for Cancer Therapy Photothermal therapy (PTT) has shown tremendous potential for cancer treatment. However, the development of nanomaterials (NMs) photothermal agents (PTAs) with satisfactory photothermal conversion efficiency (PTCE) and biocompatibility remains a challenge. Zhang Wei from Shenzhen University, Jinjun Shi from Harvard University, and Omid C. Farokhzad (Common Communications) have developed a new generation of PTAs based on two-dimensional (2D) 锑 quantum dots (AMQDs) through a novel liquid stripping method. Surface modification of AMQDs with polyethylene glycol (PEG) significantly enhances biocompatibility and stability in physiological media. AMQDs with PEG coating showed 45.5% PTCE, which is higher than many other NMs-based PTAs such as graphene, Au, MoS2, and black phosphorus (BP). 7, Adv Mater Cover: nanoporous material: integration step for controlled organic transition resistance resistor having a high density integrated memory architecture reduced ability to sub-nanometer, making it the most promising nanoelectronics. Nanjing University of Posts and Telecommunications, Yi Mingdong, Jie Linghai, and Huang Wei (Common Communications) and others systematically studied the resistance based on the widely used Al/organic/indium tin oxide (ITO) vertical structure and poly(9-vinylcarbazole). Transformation (RS) behavior. Nano-scale Al filaments with dynamic gap regions (DGZ) were directly observed using in-situ scanning transmission electron microscopy (STEM), indicating that RS behavior is associated with random formation of spliced ​​filaments composed of Al and oxygen vacancies. The randomness of filament formation can be suppressed by introducing a tapered contact by a one-step integration method. 8. Adv. Mater. Cover: Water Decomposition: Artificial blades with floating and flat design can be applied to various natural environments as a promising means of solar energy conversion. Electrolysis technology based on photovoltaic (PV) cells has gradually caused The attention of researchers, especially through the decomposition of solar water, produces hydrogen. Kijung Yong (corresponding author) and others at Pohang University of Science and Technology highlighted the design and function of monolithic photoelectrolysis systems (so-called artificial blades) used in various environments. The uniquely designed artificial leaf system promotes the water splitting reaction by combining the upper PV cell with a single-sided electrode in a compact 2D catalytic structure. This feature maximizes solar energy utilization and is easily recyclable.
9. Adv. Mater. Cover: Thermodynamically stable synthesis of transition metal sulfide (TMDC) monolayers of large-scale, highly crystalline transition metal sulfur monolayers and their monopolar nn heterojunction devices due to their unique electronic and optical properties It is a promising material for atomic-scale electronic films. However, large-area uniform growth of TMDC monolayers with large particle sizes remains a considerable challenge. Oxford University Seung Nam Cha, Jung Inn Sohn (Communications) and others have proposed a simple and effective method for large-scale and highly crystalline molybdenum disulfide monolayers using solution-treated precursor deposits. The low supersaturation caused by the evaporation of a very thin precursor layer significantly reduces the nucleation density in a thermodynamically stable environment, resulting in a uniform and clean monolayer film and a large crystal size of up to 500 μm.
10. Cover of ACS Nano: Engineering nanofiltration accelerates the oxygen in the air of palladium nanowire H2 sensor. It hinders the H2 detection of palladium-based (Pd) H2 sensors (including Pd nanowires) and suppresses the sensitivity of air to N2 or Ar. Delayed response/recovery speed. The Institute of Science and Technology of the United States, Il–Doo Kim, and the University of California, Irvine, Reginald M. Penner (Common Communications) and others described the preparation of the H2 sensor, which is to assemble a nanofiltration layer composed of a Zn metal-organic framework (MOF) into Pd NWs. on. The polyhedral particles of the Zn-based zeolite imidazole skeleton (ZIF-8) were synthesized on Pd NWs, resulting in the production of the ZIF-8/Pd NWs double-layer H2 sensor. The ZIF-8 filter has a number of micropores (gas diffusion of 0.34 nm) which allows the passage of hydrogen molecules with a dynamic diameter of 0.289 nm and, more importantly, Pd filtered by a ZIF-8 membrane (Pd NWs@ZIF-8). NWs reduces the magnitude of the H2 response. Shower Faucet System,Concealed Bath Shower,In-Wall Black Shower Faucet
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