When using chemical methods to prepare nanoparticles, the influencing factors are the agglomeration temperature of the particles and the speed of feeding, etc.
GOUYUJUN
Using biological methods to prepare nanoparticles The factors that affect its morphology during the process mainly include pH, temperature, raw material concentration and synthesis conditions. The main indicators for evaluating the advantages and disadvantages of nanoparticle synthesis methods include: dispersion, particle size (whether the size is within a very narrow range), yield, etc.
xiejf
The influencing factors of different substances in different systems cannot be generalized
gxytju2008
The substance itself is the most important. . Some of them are single crystals with good shapes just by making them, while others are messy no matter how they are made. . Sometimes it’s better not to be too persistent
pepsihu
2nd floor: Originally posted by spectacle lens 1 at 2013-07-25 14:36:19
Use Chemistry When preparing nano-microspheres by this method, the influencing factors are the agglomeration temperature of the particles and the speed of feeding, etc.
What is the specific impact? E.G. TEMPERATURE
pepsihu
3rd Floor: Originally posted by GOUYUJUN at 2013-07-25 14:42:33
In the process of preparing nanoparticles by biological methods The factors that affect its morphology mainly include pH, temperature, raw material concentration and synthesis conditions. The main indicators for evaluating the advantages and disadvantages of nanoparticle synthesis methods include: dispersion, particle size (whether the size is within a very narrow range), yield, etc.
Excuse me specifically, what is the intrinsic mechanism by which factors such as pH and temperature affect the morphology of nanoparticles
pepsihu
4th floor: Originally posted by xiejf at 2013-07-25 14:48:08
The influencing factors of different substances in different systems cannot be generalized
For example, when I synthesize platinum nanoparticles, I can obtain nanocube by chemical reduction. , nanoporous, etc., can be spherical by laser ablation. What is the underlying mechanism?
Spectacle Lens 1
7th Floor: Originally posted by pepsihu at 2013-07-26 22:13:25
What is the specific impact? ? E.G. TEMPERATURE...
If the temperature is high, serious particles that will agglomerate will grow larger
zhaocl
Different methods for preparing nanomaterials have different influencing factors. For the hydrothermal reaction we are doing, the main factors are concentration, pH value, solvent, template agent, heating temperature, reaction time, etc.
yuan999
This is very complicated and generally different The main influencing factors are different for different materials. This depends on your material, the specific reaction and the nucleation and growth process.
lychee0924
There are many influencing factors for chemical preparation. , temperature, solvent concentration, reaction time, dropping speed, container cleanliness, rotation speed, etc.
weifire123
The influencing factors include accidentally introduced impurity ions, temperature, concentration, and reaction time. Some nanoparticles must also add a certain amount of stabilizers and protective agents.
wpl4
Generally, they are temperature and reactant concentration
Mata Glacier
Reaction medium, product, reaction temperature, reactant activity are all Influential
lv992522490
Factors include: precursor (different precursors and their proportions); temperature; reducing agent (different reducing agents and their proportions); stabilizer; Additives; surfactants; different solvents; different reaction conditions, etc., read more literature,
Zixi_Suey
If it is a nanocrystal, the impact on the morphology is mentioned in the literature The most important thing is the anisotropy of the crystal, and then the different ions (or groups with coordination or chelation) contained in the raw materials will have different effects on the growth of each face of the crystal, thus affecting the crystal morphology. Of course, factors such as temperature, reaction time, raw material concentration, solvent type, surfactant type and dosage, dispersant type and dosage, etc., will all have different effects on the morphology.
yuan999
12th Floor: Originally posted by yuan999 at 2013-07-27 09:03:29
This is very complicated, generally different materials. The main influencing factors are different. This depends on your materials, the specific reaction and the nucleation and growth process.
There is no standard for this. It depends on your materials and methods, such as: soft template method, Mainly through the micelle assembly of surfactants and the nucleation interaction of materials.
Translucent Pigs
10th Floor: Originally posted by Eyeglass 1 at 2013-07-27 08:19:29
They will reunite when the temperature is high The serious particles will grow larger...
Hello, the temperature you mentioned will cause serious agglomeration
Frontier Materials
Source of Materials , temperature, pH, reaction time