Hydrothermal Synthesis and Growth Mechanism of Mesoporous ZnO Microtubes

Porous ZnO microtubes have been synthesized via a facile hydrothermal method based on nanoparticle splicing growth and the preferential etching strategy in the hydrothermal reaction system with high supersaturation. The ZnO tubes have hexangular wurtzite structure with a dimension of about 6 to 12 m in length, 4 m in diameter and about 40 nm in wall thickness, which is made of numerous mesopores with diameter ranging from 40 nm to 200 nm.

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Facile Synthesis, Morphology Evolution and Tunable Luminescence of NaGdF4:Yb,Er Nanorods with Various Aspect Ratios

NANO ◽

10.1142/s1793292018500935 ◽

2018 ◽

Vol 13 (08) ◽

pp. 1850093 ◽

Cited By ~ 1

Author(s):

Shasha Gai ◽

Jiqing Jiao ◽

Wei Wei ◽

Yao Li ◽

Lihua Liu ◽

...

Keyword(s):

Energy Level ◽

Hydrothermal Method ◽

Growth Mechanism ◽

Morphology Evolution ◽

Schematic Diagram ◽

Facile Synthesis ◽

Reaction Conditions ◽

Facile Hydrothermal Method ◽

Aspect Ratios ◽

Lower Temperature

The well-defined NaGdF4:Yb,Er nanorods (NRs) with various aspect ratios were synthesized using a facile hydrothermal method. The morphology and crystal phase of NRs could be controlled by reaction conditions. NaGdF4:Yb,Er NRs with various aspect ratios could be synthesized and their upconversion (UC) luminescence was tuned. It is displayed that the NRs with aspect ratios about 5 exhibited the strongest UC luminescence among samples. The growth mechanism and morphology transition of NRs had been deduced by schematic diagram. And UC mechanism had been determined by energy level diagrams. Compared with previous reports, the work provided a facial method for UCNRs with various aspect ratios at lower temperature.

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The Study on hydrothermal synthesis of ZrO2 nanofibers under different conditions

E3S Web of Conferences ◽

10.1051/e3sconf/202123601038 ◽

2021 ◽

Vol 236 ◽

pp. 01038

Author(s):

Lingna Xu ◽

Yifan Cheng ◽

Tianen Chen ◽

Rong Mao ◽

Zhong Han

Keyword(s):

Reaction Time ◽

Hydrothermal Synthesis ◽

Hydrothermal Method ◽

Growth Mechanism ◽

Traditional Method ◽

Active Surface ◽

Organic Additives ◽

Preparation Methods ◽

Catalyst Carrier ◽

Traditional Preparation

Nano-ZrO2 has a high atomic active surface and is used as catalyst carrier. The traditional method of preparing ZrO2 nanofibers is electrostatic spinning, which has the problems of high cost and high equipment requirements. In order to solve the shortcomings of traditional preparation methods and prepare excellent ZrO2 nanofibers, a series of ZrO2 nanofibers were prepared based on hydrothermal method by changing the types of reactants, the ratio of reactants to organic additives, solvents, reaction time and other relevant parameters, to explore the growth mechanism of ZrO2 nanofibers, providing a new idea for the preparation of ZrO2 nanofibers on the active surface of altiplano.

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One-pot hydrothermal synthesis of novel 3D starfish-like δ-MnO2 nanosheets on carbon fiber paper for high-performance supercapacitors

RSC Advances ◽

10.1039/c7ra00787f ◽

2017 ◽

Vol 7 (24) ◽

pp. 14910-14916 ◽

Cited By ~ 15

Author(s):

Bin Xu ◽

Lin Yu ◽

Ming Sun ◽

Fei Ye ◽

Yuanhong Zhong ◽

...

Keyword(s):

Hydrothermal Synthesis ◽

Carbon Fiber ◽

Hydrothermal Method ◽

High Performance ◽

Facile Hydrothermal Method ◽

One Pot ◽

Mno2 Nanosheets ◽

Hierarchical Nanostructure ◽

Carbon Fiber Paper

Novel 3D starfish-like δ-MnO2 nanosheets with a hierarchical nanostructure supported on carbon fiber paper were synthesized through a facile hydrothermal method.

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Hydrothermal synthesis of 2D MoS2 nanosheets for electrocatalytic hydrogen evolution reaction

RSC Advances ◽

10.1039/c5ra18855e ◽

2015 ◽

Vol 5 (109) ◽

pp. 89389-89396 ◽

Cited By ~ 53

Author(s):

S. Muralikrishna ◽

K. Manjunath ◽

D. Samrat ◽

Viswanath Reddy ◽

T. Ramakrishnappa ◽

...

Keyword(s):

Hydrothermal Synthesis ◽

Hydrothermal Method ◽

Hydrogen Evolution ◽

Hydrogen Evolution Reaction ◽

Mos2 Nanosheets ◽

Facile Hydrothermal Method

Herein, we have designed and synthesized highly electocatalytically active 2D MoS2 nanosheets (NS), by a facile hydrothermal method, for hydrogen evolution reaction (HER).

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Conventional and Microwave Hydrothermal Synthesis and Application of Functional Materials: A Review

Materials ◽

10.3390/ma12071177 ◽

2019 ◽

Vol 12 (7) ◽

pp. 1177 ◽

Cited By ~ 35

Author(s):

Guijun Yang ◽

Soo-Jin Park

Keyword(s):

Hydrothermal Method ◽

Hydrothermal Reaction ◽

Force Fields ◽

Ceramic Powder ◽

Reaction System ◽

Functional Materials ◽

Ferroelectric Materials ◽

Practical Application ◽

Powder Synthesis ◽

Microwave Hydrothermal

With the continuous development and progress of materials science, increasingly more attention has been paid to the new technology of powder synthesis and material preparation. The hydrothermal method is a promising liquid phase preparation technology that has developed rapidly during recent years. It is widely used in many fields, such as the piezoelectric, ferroelectric, ceramic powder, and oxide film fields. The hydrothermal method has resulted in many new methods during the long-term research process, such as adding other force fields to the hydrothermal condition reaction system. These force fields mainly include direct current, electric, magnetic (autoclaves composed of non-ferroelectric materials), and microwave fields. Among them, the microwave hydrothermal method, as an extension of the hydrothermal reaction, cleverly uses the microwave temperature to compensate for the lack of temperature in the hydrothermal method, allowing better practical application. This paper reviews the development of the hydrothermal and microwave hydrothermal methods, introduces their reaction mechanisms, and focuses on the practical application of the two methods.

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Hydrothermal Synthesis and Photocatalytic Hydrogen Generation of Cr3+ Doped Porous ZnIn2S4 Photocatalysts

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.651.54 ◽

2013 ◽

Vol 651 ◽

pp. 54-59 ◽

Cited By ~ 1

Author(s):

Wei Wu ◽

Xue Feng Bai

Keyword(s):

Crystal Structure ◽

Photocatalytic Activity ◽

Hydrothermal Synthesis ◽

Hydrothermal Method ◽

Doping Concentration ◽

Hydrogen Generation ◽

Electron Hole ◽

Facile Hydrothermal Method ◽

Photocatalytic Hydrogen Generation ◽

Hole Recombination

A series of Cr3+doped porous ZnIn2S4photocatalysts were synthesized via a facile hydrothermal method using cetylpyridiniumbromide (CPBr) as template. The above-prepared photocatalysts were characterized by XRD, FESEM, DRS and XPS. The effects of different Cr3+doping concentration on the morphology and photocatalytic activity of ZnIn2S4photocatalysts were investigated. It is demonstrated from the experimental results that Cr3+doping in the ZnIn2S4photocatalyst had significantly influence on the crystal structure, electron-hole recombination and photocatalytic activity. The highest rate of hydrogen evolution of 3115.2 μmol/(h•g) over Cr3+(0.5%)- ZnIn2S4photocatalyst was observed.

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A comment on: “Conventional and Microwave Hydrothermal Synthesis and Application of Functional Materials: A Review”

Materials ◽

10.3390/ma12213631 ◽

2019 ◽

Vol 12 (21) ◽

pp. 3631 ◽

Cited By ~ 2

Author(s):

Behrouz Jalouli ◽

Aref Abbasi ◽

S. Mohammad Musavi Khoei

Keyword(s):

Crystal Growth ◽

Hydrothermal Synthesis ◽

Hydrothermal Method ◽

Growth Mechanism ◽

Short Communication ◽

Functional Materials ◽

Microwave Hydrothermal ◽

Crystal Growth Mechanism

In the recent paper published in Materials (Yang et al., 2019), there is a mistake in the explanation of crystal growth mechanism of the hydrothermal method. The error in this article is discussed in this short communication.

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Facile hydrothermal synthesis of Tb2(MoO4)3:Eu3+ phosphors: controllable microstructures, tunable emission colors, and the energy transfer mechanism

New Journal of Chemistry ◽

10.1039/c6nj00887a ◽

2016 ◽

Vol 40 (9) ◽

pp. 7350-7358 ◽

Cited By ~ 7

Author(s):

Jun Yang ◽

Lei Zhou ◽

Li Yuan ◽

Xianju Zhou ◽

Bin Hu ◽

...

Keyword(s):

Energy Transfer ◽

Hydrothermal Synthesis ◽

Hydrothermal Method ◽

Transfer Mechanism ◽

Energy Transfer Mechanism ◽

Facile Hydrothermal Method ◽

Subsequent Calcination ◽

Calcination Treatment ◽

Tunable Emission

Microsphere-like Tb2(MoO4)3 structures have been successfully synthesized by a facile hydrothermal method with the subsequent calcination treatment.

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Shape-Controlled CeO2 Nanomaterials Prepared by Hydrothermal Process

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.331.513 ◽

2013 ◽

Vol 331 ◽

pp. 513-521 ◽

Cited By ~ 1

Author(s):

Yu Tao ◽

Yu Xiao Tao ◽

Zhong Huai Su ◽

Hai Ping Wu

Keyword(s):

Hydrothermal Method ◽

Growth Mechanism ◽

Large Scale ◽

Preparation Method ◽

Hydrothermal Process ◽

Reaction System ◽

Simple Hydrothermal Method ◽

Large Scale Preparation ◽

Scale Preparation ◽

Shape Controlled

A simple hydrothermal method was developed to prepare shaped-controlled CeO2 nanomaterials, in which, Ce (NO3)3· 6H2O was used as Ce source and H2O2 was used as oxidant and morphologies controlling agent. Different morphologies of CeO2 including nanoparticles, nanooctahedrons, nanorods and nanocubes could be obtained by simply adjusting the concentration of H2O2 in reaction system. These nanoCeO2 could be dispersed in water and ethanol very well after reaction without using any surfactant. A possible growth mechanism was put forward to explain the morphologies evolution process based on TEM, SEM observations. There are not any other impurities were introduced into reaction, and the production ration is high enough, which supply a potential large-scale preparation method for CeO2 nanomaterials.

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