Atomic Carbon Material Low-Temperature Carbonization

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Solution Overview

Problem

Conventional carbonization techniques at high temperatures result in graphitized charcoal with limited ion adsorption ability and difficulty in combining with other materials, while low-temperature carbonization produces non-crystalline charcoal with low electrical conductivity and poor material compatibility.

Innovation Solution

An atomic carbon material is created by heating a covalent bonded organic material in an inactive atmosphere to separate non-carbon elements, maintaining temperatures below 450°C to prevent graphitization, resulting in ultra-fine particles with two to ten linearly bonded carbon atoms, which are then cooled and ground to enhance ion adsorption ability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If high temperature heating is applied to carbonize organic material, then pure carbon material is obtained, but graphitization occurs and ion adsorption ability is limited

Engineering Contradiction:
Improvepurity of carbon materialVSAvoidion adsorption ability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent changes the temperature parameter from conventional high temperature (800°C or higher) to low temperature (450°C or lower), which prevents graphitization while still achieving complete decomposition of non-carbon elements. This parameter change resolves the contradiction by obtaining pure carbon material without graphitization, thereby maintaining high ion adsorption ability

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

Instead of following the conventional approach of high-temperature carbonization, the patent inverts the temperature approach by using low-temperature carbonization. This inversion allows the decomposition of hydrogen and oxygen at lower temperatures while preventing the graphitization that normally occurs at high temperatures, thus achieving both purity and high ion adsorption ability

Inventive Principle:
Principle #13The other way round (Inversion)

2Adaptability or versatility

If low temperature carbonization is applied, then non-crystalline structure is obtained, but electrical conductivity is low

Engineering Contradiction:
Improveion adsorption abilityVSAvoidelectrical conductivity
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The patent changes the temperature parameter to 450°C or lower, which is sufficient to decompose non-carbon elements but too low to cause graphitization. This produces amorphous carbon with high ion adsorption ability. The low temperature prevents the formation of crystalline graphite structures, maintaining the amorphous state that provides superior ion adsorption capabilities

Inventive Principle:
Principle #35Parameter changes

3Reliability

If high temperature heating is applied to remove hydrogen and oxygen, then pure carbon is obtained, but material becomes difficult to combine with other materials

Engineering Contradiction:
Improvepurity of carbon materialVSAvoidcombining ability with other materials
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies low temperature (450°C or lower) carbonization, which removes hydrogen and oxygen through decomposition while preventing graphitization. The resulting amorphous carbon material maintains high reactivity and combining ability with other materials, resolving the contradiction between purity and adaptability

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent inverts the conventional high-temperature approach by using low-temperature carbonization. This inversion achieves complete removal of non-carbon elements while preventing the graphitization that reduces material combining ability, thus obtaining pure carbon that remains highly reactive and combinable with other materials

Inventive Principle:
Principle #13The other way round (Inversion)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The atomic carbon material exhibits four times the ion adsorption ability of fullerenes and carbon nano-tubes, allowing for better material combination and application in medicine, healthcare, and beauty products without toxicity, while maintaining amorphous structure and high reactivity.

Implementation Method 1

heating at a predetermined temperature while sequentially increasing the temperature; expected elements except for carbon (for instance, gaseous elements such as oxygen and water vapor, etc) in the aforementioned atmosphere and the organic material are individually separated from being bonded with carbon by thermally decomposing

Methodology Applied
Scientific EffectThermal decomposition: Pyrolysis

Implementation Method 2

the aforementioned decomposed elements are exhausted each time of separation to outside of the atmosphere under a condition where the inactive atmosphere is maintained

Methodology Applied
Scientific EffectEvaporation and exhaustion: Evaporation

Data Source

PatentUS8685359B2Atomic carbon material and method for preparation thereof
Publication Date: 2014.04.01 SATO
  • US8685359B2 patent drawing
  • US8685359B2 patent drawing
  • US8685359B2 patent drawing

AI summary

An atomic carbon material and a preparation method thereof having ion adsorption ability superior to fullerenes and nano-tubes are provided. This atomic carbon material is in a state existing as an organic compound and in a state close to an atom with a diameter of 1 nm or less (theoretically about 1.66 angstrom), and is a bulk where they are congregated with each other with an interatomic force or a particle with a particle size of 1 nm or less. This atomic carbon material is manufactured by heating a raw material composed of an organic material which does not include carbon units in an inactive atmosphere at a predetermined temperature while sequentially increasing the temperature and by individually separating expected elements except for carbon in the aforementioned atmosphere and the organic material from being bonded with carbon by thermally decomposing in order from an element having a lower decomposition temperature at a temperature of 450 C or lower.