Summary
Abstract
Introduction
Protocol
Representative Results
Discussion
Acknowledgements
Materials
References
Chemistry
氢氧化镍纳米片是通过微波辅助水热反应合成的。该协议表明,用于微波合成的反应温度和时间会影响反应产率、晶体结构和局部配位环境。
提出了一种在弱酸性条件下快速微波辅助水热合成氢氧化镍纳米片的方案,并研究了反应温度和时间对材料结构的影响。所有研究的反应条件都产生层状α-Ni(OH)2 纳米片的聚集体。反应温度和时间对材料结构和产物收率有很大影响。在较高温度下合成α-Ni(OH)2 可提高反应产率,降低层间间距,增加晶畴尺寸,改变层间阴离子振动模式的频率,并降低孔径。较长的反应时间可提高反应产率,并产生相似的晶域大小。 原位 监测反应压力表明,在较高的反应温度下获得更高的压力。这种微波辅助合成路线提供了一种快速、高通量、可扩展的工艺,可应用于各种过渡金属氢氧化物的合成和生产,用于多种能量存储、催化、传感器和其他应用。
Name | Company | Catalog Number | Comments |
ATR-FTIR | Bruker | Tensor II FT-IR spectrometer equipped with a Harrick Scientific SplitPea ATR micro-sampling accessory | |
Bath sonicator | Fisher Scientific | 15-337-409 | -- |
Ethanol | VWR analytical | AC61509-0040 | 200 proof |
Ethylene Glycol | VWR analytical | BDH1125-4LP | 99% purity |
Falcon Centrifuge tubes | VWR analytical | 21008-940 | 50 mL |
KimWipes | VWR analytical | 21905-026 | -- |
Lab Quest 2 | Vernier | LABQ2 | -- |
Microwave Reactor | Anton Parr | 165741 | Monowave 450 |
Ni(NO3)2 · 6 H2O | Ward's Science | 470301-856 | Research lab grade |
pH Probe | Vernier | PH-BTA | Calibrated vs standard pH solutions (pH= 4, 7, 11) |
Porosemeter | Micromeritics | -- | ASAP 2020. Analysis software: Micromeritics, version 4.03 |
Powder x-ray diffactometer | Bruker | AXS Advanced Poweder x-ray diffractometer; d-spacing, and crystallite size analyses were performed using Highscore XRD software, and crystal structures were created using VESTA 3 software. | |
Reaction vial | Anton Parr | 82723 | 30 mL G30 wideneck, 20 mL max fill capacity |
Reaction vial locking lid | Anton Parr | 161724 | G30 Snap Cap |
Reaction vial PTFE septum | Anton Parr | 161728 | Wideneck |
Scanning electron microscope | FEI | -- | Helios Nanolab 400 |
Urea | VWR analytical | BDH4602-500G | ACS grade |
ABOUT JoVE
Copyright © 2024 MyJoVE Corporation. All rights reserved