What does a catalyst mean, what does the catalyst effect mean

Catalyst is the old name for catalyst.

The metaphor is a medium for things to change.

Guo Moruo. The Sequel to the Literary Treatise: A Review of the Literary Revolution": "The times are constantly creating their literary language, and the times are constantly creating their vernacular, and the two are constantly harmonizing, and writers are the catalyst for promoting this culture and promoting this harmony. ”

A catalyst generally refers to a substance that increases (or decreases) the rate of a reaction without changing the Gibbs free energy change in the total standard of the reaction. It can also be expressed as a substance that can increase (or decrease) the rate of chemical reaction in a chemical reaction without changing the chemical equilibrium, and its mass and chemical properties have not changed before and after the chemical reaction.

According to statistics, more than 90% of industrial processes use catalysts, such as chemical, petrochemical, biochemical, environmental protection, etc. There are many types of catalysts, which can be divided into liquid catalysts and solid catalysts according to their states; According to the phase state of the reaction system, it can be divided into homogeneous catalysts and heterogeneous catalysts, and homogeneous catalysts include acids, alkalis, soluble transition metal compounds and peroxide catalysts.

Catalysts play an extremely important role in the modern chemical industry, for example, iron catalysts are used in the production of ammonia, vanadium catalysts are used in the production of sulfuric acid, and different catalysts are used in the polymerization of ethylene and the production of rubber from butadiene.

Catalyst is the old name for catalysts used in the chemical industry. In many cases, the addition of a catalyst can speed up the reaction of a substance.

Therefore, it is often used in dialects as a metaphor for the medium that promotes the change of things, and the catalytic effect --- means the effect of the factors that play a role in promoting or mediating the change of things.

The word "catalyst" is explained as: catalyst chùméi. (1) The old name of the catalyst.

The word "catalyst" is explained as: catalyst chùméi. (1) The old name of the catalyst.

The part of speech is: noun. The phonetic pronunciation is:

The structure is: touch (left and right structure) medium (left and right structure). The pinyin is:

chùméi。

What is the specific explanation of the catalyst, we will introduce it to you through the following aspects:

1. Citations and explanations [click here to view the details of the plan].

The old name for a catalyst. The metaphor is a medium for things to change. Quote Guo Moruo's "Sequel to the Collection of Literary and Artistic Treatises: A Review of the Literary Revolution":

The times are constantly creating its literary language, and the times are constantly repenting of the vernacular that created it, and the two are constantly harmonizing, and writers are the catalyst for promoting this culture and promoting this harmony. ”

2. Chinese dictionary.

Another name for a catalyst. See also the Catalyst article.

3. Network Explanation.

Catalyst catalyst is another term for "catalyst" that acts to change the rate of certain chemical cluster processes. This is how you can achieve the desired result. According to the definition proposed by IUPAC in 1981, a catalyst is a substance that is capable of changing the rate of a reaction without changing the standard Gibbs free enthalpy change of that reaction.

This action is called catalysis. A reaction involving a catalyst is a catalytic reaction.

Idioms about catalysts.

The male media, the female concubine, the touch class, the bypass, the three media, the six certificates, the butterfly, the bee media touch, the matchmaker's words, the media is marrying the media, and the self-show touch class grows.

Words about catalysts.

The words of the matchmaker: the media is marrying, the touching class is bypassed, the Ming media is the ceremony, and the bee is sent to the bee medium, the butterfly makes the butterfly, and the bee media makes the bee medium, and the three media and six certificates.

Sentence formation about catalysts.

1. Nano silver and photocatalyst coatings can also prevent the spread and infection of infectious diseases by effectively eliminating bacteria and molds in the air.

2. In this study, it was found that the catalyst supported by the metallocene catalyst at the nanoscale silica had a better yield and activity, but failed to adsorb more active substances, but could effectively form active points in front of the cherry.

3. EU countries will mainly face a shortage of catalyst converter production due to the high concentration of the automobile manufacturing industry.

4. Catalyst converters become tempting targets for stealing because they are easy to get their hands on.

5. In this paper, the effect of boron additive on pure iron powder catalyst synthetic diamond was studied.

1. Photocatalyst, also known as photocatalyst, is a general term for semiconductor materials with photocatalytic function represented by nano-scale titanium dioxide.

2. The representative photocatalyst material is titanium dioxide, which can produce strong oxidizing substances (such as hydroxyl radicals, oxygen, etc.) under light irradiation, and can be used to decompose organic compounds, some inorganic compounds, bacteria and viruses.

3. In daily life, photocatalysts can effectively degrade toxic and harmful gases in the air, such as formaldehyde, and efficiently purify the air; At the same time, it can effectively kill a variety of bacteria, and can decompose and harmless the toxins released by bacteria or fungi.