Self-templated synthesis of uniform nanoporous CuCo2O4 double-shelled hollow microspheres for high-performance asymmetric supercapacitors

2017 ◽  
Vol 53 (6) ◽  
pp. 1052-1055 ◽  
Author(s):  
Saeid Kamari Kaverlavani ◽  
Seyyed Ebrahim Moosavifard ◽  
Ali Bakouei
Keyword(s):  
High Performance ◽  
Hollow Microspheres ◽  
Asymmetric Supercapacitors ◽  
Templated Synthesis ◽  
Templated Method ◽  
First Time

Multilevel interior nanoporous CuCo2O4 microspheres have been for the first time developed using a facile self-templated method.

Hierarchical multi-shelled nanoporous mixed copper cobalt phosphide hollow microspheres as a novel advanced electrode for high-performance asymmetric supercapacitors

2017 ◽  
Vol 5 (35) ◽  
pp. 18429-18433 ◽  
Author(s):  
Seyyed Ebrahim Moosavifard ◽  
Saeid Kamari Kaverlavani ◽  
Javad Shamsi ◽  
Ali Bakouei
Keyword(s):  
Electrochemical Properties ◽  
High Performance ◽  
Hollow Microspheres ◽  
Asymmetric Supercapacitors ◽  
Cobalt Phosphide ◽  
First Time ◽  
Superior Electrochemical Properties

Hierarchical multi-shelled nanoporous mixed copper cobalt phosphide microspheres have been for the first time developed as a novel advanced electrode with superior electrochemical properties.

Porous multishelled NiO hollow microspheres encapsulated within three-dimensional graphene as flexible free-standing electrodes for high-performance supercapacitors

Nanoscale ◽  
2019 ◽  
Vol 11 (34) ◽  
pp. 16071-16079 ◽  
Author(s):  
Zhifang Zhang ◽  
Xiaorui Su ◽  
Yanyan Zhu ◽  
Zhonghui Chen ◽  
Zebo Fang ◽  
...  
Keyword(s):  
High Performance ◽  
Three Dimensional ◽  
Hollow Microspheres ◽  
Free Standing ◽  
Asymmetric Supercapacitors

Well-designed three-dimensional graphene-encapsulated porous multishelled NiO hollow microspheres as flexible free-standing electrodes (3DG/pMS-NiO) were facilely prepared and applied to high-performance asymmetric supercapacitors.

Salt-templated synthesis of 3D porous foam-like C3N4 towards high-performance photodegradation of tetracyclines

2020 ◽  
Vol 44 (40) ◽  
pp. 17405-17412
Author(s):  
Qingquan Tang ◽  
Ran Niu ◽  
Jiang Gong
Keyword(s):  
High Performance ◽  
Templated Synthesis ◽  
Templated Method

3D porous foam-like C3N4 is prepared by a salt-templated method, and it shows 64 times higher efficiency than bulk C3N4 in degrading tetracyclines.

scholarly journals Glucose-Assisted One-Pot Hydrothermal Synthesis of Hierarchical-Structured MoS2/C Quasi-Hollow Microspheres for High-Performance Lithium Ion Battery

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 837
Author(s):  
Xingang Liu ◽  
Jiang Tan ◽  
Xi Li ◽  
Chuhong Zhang
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Hydrothermal Process ◽  
Rate Capability ◽  
Lithium Ion ◽  
Nucleating Agent ◽  
Hollow Microspheres ◽  
One Pot ◽  
Bulk Mos2 ◽  
First Time

In this work, hierarchical MoS2/C quasi-hollow microspheres are prepared by a one-pot hydrothermal process with the addition of glucose. The glucose is not only inclined to form the roundish sphere in the completion of the synthesis of MoS2, but at the same time the microspheres formed by the glucose can act as the nuclei on which the MoS2 grows. Glucose, acting as a nucleating agent, has the advantages of being low-cost and environmentally friendly, which can simplify the fabrication process. The interiors of the MoS2/C samples are multi-hole and quasi-hollow, which is beneficial for the insertion and extraction of lithium ions. For the first time, we demonstrate that hierarchical-structured MoS2/C quasi-hollow microspheres exhibit an excellent cycling stability and rate capability in lithium ion batteries (LIBs) and are significantly superior to the bulk MoS2. The method presented in this article may provide a simple, clean. and economical strategy for the preparation of MoS2/C microspheres as a feasible and promising anode material for LIBs.

Ni nanoparticle doped porous VN nanoflakes assembled into hierarchical hollow microspheres with a structural inheritance from the Ni1−xVxO2 cathode material for high performance asymmetric supercapacitors

2016 ◽  
Vol 4 (6) ◽  
pp. 2158-2168 ◽  
Author(s):  
Chenchen Ji ◽  
Jinglei Bi ◽  
Shan Wang ◽  
Xiaojing Zhang ◽  
Shengchun Yang
Keyword(s):  
Cathode Material ◽  
High Performance ◽  
Hollow Microspheres ◽  
Asymmetric Supercapacitors ◽  
Structural Inheritance

A Ni/VN 3D HHMS structure was produced via exact structural inheritance from the cathode Ni1−xVxO2. They show enhanced performance when assembled into an ASC.

scholarly journals Flower-Like Nanostructured ZnCo2O4/RuO2 Electrode Materials for High Performance Asymmetric Supercapacitors

2021 ◽  
Author(s):  
jinjin wang ◽  
Tianfeng Ye ◽  
Yanqun Shao ◽  
zhiyuan lu ◽  
yuting lin ◽  
...  
Keyword(s):  
Active Sites ◽  
High Performance ◽  
Electrode Materials ◽  
Rate Capability ◽  
High Rate ◽  
Density Of State ◽  
Asymmetric Supercapacitors ◽  
Redox Active ◽  
First Time

Abstract RuO2 is well known to be an active and expensive metal oxide. In the paper, ZnCo2O4/RuO2 nanocomposites had been synthesized by simple hydrothermal, impregnation and calcination methods. Due to the multifunctional bridge structure, RuO2 could not only effectively inhibit the volume change of ZnCo2O4 in long-term work but also provide more redox active sites. The forbidden bandwidth was reduced and the conductivity was improved after doping RuO2. Comparing with ZnCo2O4, the density of state of ZnCo2O4/RuO2 tended to a higher energy level. ZnCo2O4/3wt% RuO2 electrode exhibited the excellent specific capacitance (1346.56 F g−1), high rate capability and cyclic stability in 6 M KOH aqueous solution. For the first time, the electrochemical performance of ZnCo2O4/RuO2//IrO2-ZnO ASC has been evaluated in two-electrode configurations. The supercapacitor exhibited an excellent energy density of 40.89 W h kg-1 at the power density of 740 W kg-1 and a high capacitance retention of 87.5 % even after 7000 cycles at a scanning rate of 100 mV s-1. The ZnCo2O4/RuO2 was a promising electrode material for supercapacitors.

Superionic Lithium Intercalation through 2 nm x 2 nm Columns in the Crystallographic Shear Phase Nb18W8O69

2019 ◽  
Author(s):  
Kent Griffith ◽  
Clare Grey
Keyword(s):  
High Performance ◽  
Rate Capability ◽  
Block Size ◽  
Lithium Intercalation ◽  
Resonance Spectroscopy ◽  
Complex Metal Oxides ◽  
Battery Electrode ◽  
Crystallographic Shear ◽  
Battery Material ◽  
First Time

Nb18W8O69 (9Nb2O5×8WO3) is the tungsten-rich end-member of the Wadsley–Roth crystallographic shear (cs) structures within the Nb2O5–WO3 series. It has the largest block size of any known, stable Wadsley–Roth phase, comprising 5 ´ 5 units of corner-shared MO6 octahedra between the shear planes, giving rise to 2 nm ´ 2 nm blocks. Rapid lithium intercalation is observed in this new candidate battery material and 7Li pulsed field gradient nuclear magnetic resonance spectroscopy – measured in a battery electrode for the first time at room temperature – reveals superionic lithium conductivity. In addition to its promising rate capability, Nb18W8O69 adds a piece to the larger picture of our understanding of high-performance Wadsley–Roth complex metal oxides.

Development of an HPLC-UV Method for Quantification of Stattic

2019 ◽  
Vol 15 (6) ◽  
pp. 568-573
Author(s):  
Soheil Sedaghat ◽  
Ommoleila Molavi ◽  
Akram Faridi ◽  
Ali Shayanfar ◽  
Mohammad Reza Rashidi
Keyword(s):  
High Performance ◽  
Accurate Method ◽  
Plasma Samples ◽  
Promising Target ◽  
Relative Standard ◽  
Dimerization Inhibitor ◽  
Oncogenic Protein ◽  
First Time ◽  
Transcription 3

Background: Signal transducer and activator of transcription 3 (STAT3), an oncogenic protein found constitutively active in many types of human malignancies, is considered to be a promising target for cancer therapy. Objective: In this study for the first time, a simple and accurate method has been developed for the determination of a STAT3 dimerization inhibitor called stattic in aqueous and plasma samples. Methods: A reverse-phase high-performance liquid chromatography (RP-HPLC) composed of C18 column as stationary phase, and the mixture of acetonitrile (60%) and water (40%) as mobile phase with a UV detection at 215 nm were applied for quantification of stattic. The developed method was validated by Food and Drug Administration (FDA) guideline. Results: The method provided a linear range between 1-40 and 2.5-40 µg mL-1 for aqueous and plasma samples, respectively, with a correlation coefficient of 0.999. The accuracy (as recovery) of the developed method was found to be between 95-105% for aqueous medium and 85-115% for plasma samples. The precision (as relative standard deviation) for aqueous and plasma samples was less than 6% and 15%, respectively. The sensitivity of the developed method based on FDA guideline was 1 µg mL-1 for aqueous and 2.5 µg mL-1 for plasma samples. Conclusion: These results show that the established method is a fast and accurate quantification for stattic in aqueous and plasma samples.

Sign in / Sign up

Export Citation Format

Share Document