NiCl2 powder synthesized at low temperature and application

A powder and low-temperature technology, which is applied to low-temperature synthesized NiCl2 powder and its application field, which can solve the problems of low yield of chemical synthesis, limitation of practical application of NiCl2, long preparation period, etc.

Pending Publication Date: 2022-01-21
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Synthesis of NiCl at high temperature 2 High energy consumption, long preparation cycle and low purity, while chemical synthesis yield is extremely low, which strictly limits the NiCl 2 practical application of
Currently about NiCl 2 The low-temperature synthesis process has not been reported, based on this, a NiCl 2 In this context, the low-temperature synthesis method of powder was proposed

Method used

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  • NiCl2 powder synthesized at low temperature and application
  • NiCl2 powder synthesized at low temperature and application
  • NiCl2 powder synthesized at low temperature and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Weigh a portion of raw material NiCl 2 ·6H 2 O and one part extraction aid CuCl 2 2H 2 O, wherein the extraction aid is 5 at.% of the raw material, the two are dissolved in dehydrated alcohol, stirred evenly, and the quality of dehydrated alcohol is 4 times that of the raw material.

[0039] (2) The above solution was placed in a drying oven, the drying temperature was 100° C., the drying time was 8 hours, and the drying environment was atmospheric environment.

[0040] (3) Put the product obtained in step (2) into a muffle furnace for calcination, wherein the calcination temperature is 300°C, and the heating rate is 10°C·min -1 , Calcination time 3h. After the muffle furnace was cooled to room temperature, the sample was taken out, the surface product was scraped off, and the remaining product was sealed and stored.

[0041] Show through XRD analysis, the NiCl prepared by above-mentioned steps 2 Corresponds well to anhydrous NiCl 2 The standard PDF card for ...

Embodiment 2

[0045] (1) Weigh a portion of raw material NiCl 2 ·6H 2 O and one part extraction aid CuCl 2 2H 2 O, wherein the extraction aid is 15 at.% of the raw material, the two are dissolved in dehydrated alcohol, stirred evenly, and the quality of dehydrated alcohol is 4 times that of the raw material.

[0046] (2) Put the above solution in a drying oven, the drying temperature is 80° C., the drying time is 16 hours, and the drying environment is atmospheric environment.

[0047] (3) Put the product obtained in step (2) into a muffle furnace for calcination, wherein the calcination temperature is 350°C, and the heating rate is 5°C·min -1 , Calcination time 6h. After the muffle furnace was cooled to room temperature, the sample was taken out, the surface product was scraped off, and the remaining product was sealed and stored.

[0048] Show through XRD analysis, the NiCl prepared by above-mentioned steps 2 Corresponds well to anhydrous NiCl 2 The standard PDF card for the single...

Embodiment 3

[0052] (1) Weigh a portion of raw material NiCl 2 ·6H 2 O and a part of extraction aid CuCl, wherein the extraction aid is 3at.% of the raw material, the two are dissolved in absolute ethanol, stirred evenly, and the quality of absolute ethanol is 4.5 times that of the raw material.

[0053] (2) The above solution was placed in a drying oven, the drying temperature was 100°C, the drying time was 12 hours, and the drying environment was atmospheric environment.

[0054] (3) The product obtained in step (2) is placed in a muffle furnace for calcination, wherein the calcination temperature is 400°C, and the heating rate is 10°C·min -1 , Calcination time 3h. After the muffle furnace was cooled to room temperature, the sample was taken out, the surface product was scraped off, and the remaining product was sealed and stored.

[0055] Show through XRD analysis, the NiCl prepared by above-mentioned steps 2 Corresponds well to anhydrous NiCl 2 The standard PDF card for the single...

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Abstract

The invention relates to NiCl2 powder synthesized at low temperature and application, and belongs to the technical field of powder preparation. The NiCl2 powder synthesized at low temperature takes hydrated nickel chloride as a raw material; raw materials and an extraction aid are uniformly mixed in an organic solvent, dried and then calcined at 280-550 DEG C to obtain the product; the extraction aid is chloride of transition metal elements. The pure-phase NiCl2 is prepared under the low-temperature condition for the first time. The related preparation process is short in period, low in energy consumption and low in cost. The designed and prepared product can be applied to at least one of thermal batteries, supercapacitors, lithium ion batteries and sodium ion batteries.

Description

technical field [0001] The invention relates to a low-temperature synthesized NiCl 2 The powder and its application belong to the technical field of powder preparation. Background technique [0002] Due to the advantages of short activation time, high output energy, and long storage time, thermal batteries are widely used as output power sources in weapons and military devices. With the rapid development of modern weapons, higher requirements are put forward for the thermal battery's performance indicators of long life, high power and fast activation. Transition metal halides have attracted extensive attention due to their high potential, high specific energy, and excellent thermal stability. Among them, NiCl 2 The potential for Li is as high as 2.64V, and the theoretical specific capacity is as high as 414mAhg -1 , and has good thermal stability, is an alternative to transition metal dichalcogenides (FeS 2 、CoS 2 ) become an ideal cathode material for high-power therm...

Claims

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Application Information

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IPC IPC(8): C01G53/09
CPCC01G53/09C01P2006/40C01P2002/72
Inventor 符立才姚斌周灵平朱家俊杨武霖李德意
Owner HUNAN UNIV
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