CN106902744A - The method that one kind prepares MIL 100 (Fe) at room temperature - Google Patents
The method that one kind prepares MIL 100 (Fe) at room temperature Download PDFInfo
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- CN106902744A CN106902744A CN201710095155.1A CN201710095155A CN106902744A CN 106902744 A CN106902744 A CN 106902744A CN 201710095155 A CN201710095155 A CN 201710095155A CN 106902744 A CN106902744 A CN 106902744A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/223—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material containing metals, e.g. organo-metallic compounds, coordination complexes
- B01J20/226—Coordination polymers, e.g. metal-organic frameworks [MOF], zeolitic imidazolate frameworks [ZIF]
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/41—Preparation of salts of carboxylic acids
- C07C51/418—Preparation of metal complexes containing carboxylic acid moieties
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4806—Sorbents characterised by the starting material used for their preparation the starting material being of inorganic character
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
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Abstract
The invention discloses a kind of method for preparing MIL 100 (Fe) at room temperature, the method comprises the following steps:Iron powder is placed in distilled water and is stirred, add concentrated nitric acid, 1 is added after stirring, 3,5 trimesic acids and the mixed solution of accelerator, then carry out 10 ~ 12h of synthetic reaction at ambient temperature, yellowish-brown crude product N, the N dimethylformamide and alcohol flushing for obtaining several times after, be soaked in NH4Purifying is stirred in F solution, is finally dried, obtain MIL 100 (Fe) sorbing material for having purified.The method of the present invention is capable of achieving to operate at normal temperatures compared with conventional method, without HF, has the advantages that energy-conserving and environment-protective, with good prospects for commercial application.
Description
Technical field
The invention belongs to chemical adsorbing separation Material Field, a kind of metal that can at ambient temperature prepare iron content is relate to
The method of organic framework material, and in particular to the method that one kind prepares MIL-100 (Fe) at room temperature.
Background technology
Metal organic framework (Metal-Organic Frameworks, MOFs), be by metal ion or metal cluster with have
The porous material with three-dimensional structure that machine part is constituted, it has larger specific surface area, constitutes various, and pore structure can
Adjust and the advantages of can be chemically modified to it as needed, in energy stores, gas absorption and separate, be catalyzed, sense
Multiple fields have shown good advantage, have great application prospect.
MIL series materials are the classes in MOFs materials.Wherein, MIL-100 (Fe) is a kind of Thermodynamically stable, environment friend
Good porous material, not only there is adsorption capacity high to VOCs, has good performance to alkene-alkane separation, and be current tide
To CO under the conditions of wet2One of the maximum sorbing material of adsorption capacity, with good industrial application value.At present, MIL-100
(Fe) preparation is mainly and is synthesized by high temperature hydro-thermal reaction.The deficiency that presently, there are is:, it is necessary to use hydrogen in building-up process
Fluoric acid [Horcajada PS, S.Serre, C.Hong, D.Y.Seo, Y.K.Chang, J.S.Greneche,
J.M.Margiolaki,I.Ferey,G.Synthesis and catalytic properties of MIL-100(Fe),an
iron(III)carboxylate with large pores.Chemical communications.2007(27):2820-
2], it is a kind of severe poisonous chemicals, with very strong corrosivity, meeting etching apparatus, and has serious harm to people;Additionally,
Reaction needs high temperature, huge [Peng J, Xian S, Xiao J, Huang Y, Xia Q, Wang H, the et al.A of energy ezpenditure
supported Cu(I)@MIL-100(Fe)adsorbent with high CO adsorption capacity and CO/
N2selectivity.Chemical Engineering Journal.2015;270:282-9].
For problem above, the present invention proposes a kind of new synthesis technique, and compared with original synthesis technique, it is not only not
Hydrofluoric acid is needed, but also can realize synthesizing MIL-100 (Fe) under normal temperature condition, so that the cost of commercial synthesis is reduced,
It is pushed further into the industrial applications of MOFs materials.
The content of the invention
There is high temperature it is an object of the invention to be directed in the existing method for preparing MIL-100 (Fe) material, and use
The shortcoming of hydrofluoric acid, there is provided the method that one kind prepares MIL-100 (Fe) at room temperature.
The purpose of the present invention is achieved through the following technical solutions.
The method that one kind prepares MIL-100 (Fe) at room temperature, comprises the following steps:
(1) mixed liquor of configuration iron powder and water, is subsequently adding concentrated nitric acid, stirs, and A liquid is obtained;
(2) 1 is configured, the aqueous solution of 3,5- trimesic acids/accelerator is obtained B liquid;
(3) in the B liquid obtained by step (2) being poured into A liquid obtained in step (1), react at ambient temperature, obtain rough
MIL-100 (Fe);
(4) the rough MIL-100 (Fe) of step (3) gained is centrifuged, N, N- dimethyl methyls is then used successively
After acid amides and alcohol flushing, centrifugation, the solid matter that will be obtained is soaked in NH4Stirred in F solution, by gained after filtering
Solid is dried and activated, and finally gives the MIL-100 (Fe) of purifying.
Preferably, in the A liquid that step (1) is configured, iron powder, concentrated nitric acid, the molar ratio of water are 1:(0.37~1.2):
(167~170).
Preferably, step (2) described accelerator is that quinones, peroxide or piperidines nitroxide radical promote
Agent.
It is further preferred that the accelerator is benzoquinones, methylbenzoquinone, H2O2, cumyl hydroperoxide or 2,2,6,6- tetra-
Methyl piperidine-nitrogen-oxide.
Preferably, in the B liquid that step (2) is configured, 1,3,5- trimesic acid, accelerator, the molar ratio of distilled water
For:
(1) when accelerator is quinones, 1,3,5- trimesic acids:Accelerator:Distilled water=(0.66~0.68):
(0.01~0.1):(111~115);
(2) when accelerator is peroxide, 1,3,5- trimesic acids:Accelerator:Distilled water=(0.66~
0.68):(1.11~5.55):(111~115);
(3) when accelerator is piperidines nitroxide radical, 1,3,5- trimesic acids:Accelerator:Distilled water=
(0.66~0.68):(0.045~0.075):(111~115).
Preferably, the volume ratio of step (3) the B liquid and A liquid is 1:1.5~1:1, the time of the reaction is that 7-12 is small
When.
Preferably, step (4) NH4The concentration of F solution is 25~35mmol/L.
Preferably, the time of step (4) described stirring is 8h~10h.
Preferably, step (4) activation is activation 2h~10h under 120 DEG C~150 DEG C of vacuum drying.
Compared with prior art, the invention has the advantages that:
The present invention need not add hydrofluoric acid, it is not necessary to heat, and can synthesize MIL-100 at ambient temperature
(Fe) crystal, the advantage with energy-conserving and environment-protective.
Brief description of the drawings
Fig. 1 is that the XRD of the MIL-100 (Fe) that embodiment 1-3 is prepared with hydro-thermal method characterizes comparison diagram.
Fig. 2 is the XRD spectra of MIL-100 (Fe) prepared by embodiment 4~7.
Fig. 3 is embodiment 8, the XRD spectra of the MIL-100 (Fe) of the preparation of embodiment 9.
Fig. 4 is the flow chart that the method for the present invention prepares MIL-100 (Fe).
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples, but the scope of protection of present invention is not
It is confined to this.
The flow chart that the method for the present invention prepares MIL-100 (Fe) is shown in Fig. 4.
Embodiment 1
Prepare A liquid:Weigh 0.28g iron powders to be placed in 15ml distilled water, add 0.13ml concentrated nitric acids, stir, obtain A
Liquid;
B liquid is prepared, the trimesic acids (BTC) of 0.7g 1,3,5- and 5.4mg benzoquinones is weighed, 10ml distilled water is added, shaken
Rolling, ultrasound, make its fully dispersed, obtain B liquid;
Synthetic reaction:B liquid is poured onto in A liquid, is covered, stir 12h.
Purifying:Add DMF to rinse, be centrifuged 3 times, be then again then transferred to solid with alcohol flushing, centrifugation 2 times
40ml, concentration is the NH of 30mmol/L4In F solution, 10h is stirred, filtered, last 90 DEG C of drying, and in 150 DEG C of vacuum drying
Lower activation 2h, that is, obtain the MIL-100 (Fe) of the inventive method preparation, is labeled as MIL-100 (Fe) -1#.
Embodiment 2
Prepare A liquid:Weigh 0.28g iron powders to be placed in 15ml distilled water, add 0.2ml concentrated nitric acids, stir, obtain A liquid;
B liquid is prepared, the trimesic acids (BTC) of 0.72g 1,3,5- and 6.1mg methylbenzoquinones is weighed, 12ml distillations are added
Water, rock, ultrasound, make its fully dispersed, obtain B liquid;
Synthetic reaction:B liquid is poured onto in A liquid, is covered, stir 10h.
Purifying:Add DMF to rinse, be centrifuged 3 times, be then again then transferred to solid with alcohol flushing, centrifugation 2 times
40ml, concentration is the NH of 30mmol/L4In F solution, 8h is stirred, filtered, last 90 DEG C of drying, and in 150 DEG C of vacuum drying
Lower activation 5h, that is, obtain the MIL-100 (Fe) of the inventive method preparation, is labeled as MIL-100 (Fe) -2#.
Embodiment 3
Prepare A liquid:Weigh 0.28g iron powders to be placed in 15ml distilled water, add 0.42ml concentrated nitric acids, stir, obtain A
Liquid;
B liquid is prepared, the trimesic acids (BTC) of 0.7g 1,3,5- and 5.4mg benzoquinones is weighed, 12ml distilled water is added, shaken
Rolling, ultrasound, make its fully dispersed, obtain B liquid;
Synthetic reaction:B liquid is poured onto in A liquid, is covered, stir 7h.
Purifying:Add DMF to rinse, be centrifuged 3 times, be then again then transferred to solid with alcohol flushing, centrifugation 2 times
40ml, concentration is the NH of 28mmol/L4In F solution, 9h is stirred, filtered, last 90 DEG C of drying, and in 135 DEG C of vacuum drying
Lower activation 10h, that is, obtain the MIL-100 (Fe) of the inventive method preparation, is labeled as MIL-100 (Fe) -3#.
As shown in figure 1, compared with the MIL-100 (Fe) that traditional hydro-thermal method is synthesized, sample 1#, 2#, 3# shows
Good X-ray diffraction peak is gone out, has shown sample 1#, 2#, 3# crystallinity very well, proved that quinones substance ought be used as accelerator
When, MIL-100 (Fe) successfully synthesizes.
Embodiment 4
Prepare A liquid:Weigh 0.28g iron powders to be placed in 15ml distilled water, add 0.42ml concentrated nitric acids, stir, obtain A
Liquid;
B liquid is prepared, the trimesic acids (BTC) of 0.71g 1,3,5- are weighed, 10ml distilled water is added, and add 10 μ L
H2O2, rock, ultrasound, make its fully dispersed, obtain B liquid;
Synthetic reaction:B liquid is poured onto in A liquid, is covered, 9.5h is stirred under the irradiation of visible ray.
Purifying:Add DMF to rinse, be centrifuged 3 times, be then again then transferred to solid with alcohol flushing, centrifugation 2 times
40ml, concentration is the NH of 32mmol/L4In F solution, 10h is stirred, filtered, last 90 DEG C of drying, and in 120 DEG C of vacuum drying
Lower activation 10h, that is, obtain the MIL-100 (Fe) of the inventive method preparation, is labeled as MIL-100 (Fe) -4#.
Embodiment 5
Prepare A liquid:Weigh 0.28g iron powders to be placed in 16ml distilled water, add 0.42ml concentrated nitric acids, stir, obtain A
Liquid;
B liquid is prepared, the trimesic acids (BTC) of 0.7g 1,3,5- are weighed, 10ml distilled water is added, and add 25 μ L H2O2,
Rock, ultrasound, make its fully dispersed, obtain B liquid;
Synthetic reaction:B liquid is poured onto in A liquid, is covered, 12h is stirred under the irradiation of visible ray.
Purifying:Add DMF to rinse, be centrifuged 3 times, be then again then transferred to solid with alcohol flushing, centrifugation 2 times
40ml, concentration is the NH of 35mmol/L4In F solution, 8h is stirred, filtered, last 90 DEG C of drying, and in 140 DEG C of vacuum drying
Lower activation 8h, that is, obtain the MIL-100 (Fe) of the inventive method preparation, is labeled as MIL-100 (Fe) -5#.
Embodiment 6
Prepare A liquid:Weigh 0.28g iron powders to be placed in 14ml distilled water, add 0.42ml concentrated nitric acids, stir, obtain A
Liquid;
B liquid is prepared, the trimesic acids (BTC) of 0.72g 1,3,5- are weighed, 10ml distilled water is added, and add 10 μ L peroxides
Change hydrogen isopropylbenzene, rock, ultrasound, make its fully dispersed, obtain B liquid;
Synthetic reaction:B liquid is poured onto in A liquid, is covered, continue to stir 12h under the irradiation of visible ray.
Purifying:Add DMF to rinse, be centrifuged 3 times, be then again then transferred to solid with alcohol flushing, centrifugation 2 times
40ml, concentration is the NH of 30mmol/L4In F solution, 10h is stirred, filtered, last 90 DEG C of drying, and in 130 DEG C of vacuum drying
Lower activation 8h, that is, obtain the MIL-100 (Fe) of the inventive method preparation, is labeled as MIL-100 (Fe) -6#.
Embodiment 7
Prepare A liquid:Weigh 0.28g iron powders to be placed in 15ml distilled water, add 0.42ml concentrated nitric acids, stir, obtain A
Liquid;
B liquid is prepared, the trimesic acids (BTC) of 0.7g 1,3,5- are weighed, 13ml distilled water is added, and add 25 μ L peroxides
Change hydrogen isopropylbenzene, rock, ultrasound, make its fully dispersed, obtain B liquid;
Synthetic reaction:B liquid is poured onto in A liquid, is covered, continue to stir 9.5h under the irradiation of visible ray.
Purifying:Add DMF to rinse, be centrifuged 3 times, be then again then transferred to solid with alcohol flushing, centrifugation 2 times
40ml, concentration is the NH of 25mmol/L4In F solution, 9h is stirred, filtered, last 90 DEG C of drying, and in 150 DEG C of vacuum drying
Lower activation 10h, that is, obtain the MIL-100 (Fe) of the inventive method preparation, is labeled as MIL-100 (Fe) -7#.
As shown in Figure 2, sample 4#, 5#, 6#, 7# show good X-ray diffraction peak, show sample 4#, 5#,
Very well, the XRD spectra to the MIL-100 (Fe) that hydro-thermal method in Fig. 1 synthesizes is similar, proves to use peroxide for 6#, 7# crystallinity
When class material is as accelerator, MIL-100 (Fe) successfully synthesizes.
Embodiment 8
Prepare A liquid:Weigh 0.28g iron powders to be placed in 17ml distilled water, add 0.13ml concentrated nitric acids, stir, obtain A
Liquid;
Preparation B liquid, the weighing trimesic acids (BTC) of 0.7g 1,3,5- and 11.7mg 2,2,6,6- tetramethyl piperidines-nitrogen-
Oxide (TEMPO), add 11ml distilled water, rock, ultrasound, make its fully dispersed, obtain B liquid;
Synthetic reaction:B liquid is poured onto in A liquid, is covered, stir 7h.
Purifying:Add DMF to rinse, be centrifuged 3 times, be then again then transferred to solid with alcohol flushing, centrifugation 2 times
40ml, concentration is the NH of 28mmol/L4In F solution, 10h is stirred, filtered, last 90 DEG C of drying, and in 150 DEG C of vacuum drying
Lower activation 6h, that is, obtain the MIL-100 (Fe) of the inventive method preparation, is labeled as MIL-100 (Fe) -8#.
Embodiment 9
Prepare A liquid:Weigh 0.28g iron powders to be placed in 15ml distilled water, add 0.13ml concentrated nitric acids, stir, obtain A
Liquid;
Preparation B liquid, the weighing trimesic acids (BTC) of 0.7g 1,3,5- and 7.8mg 2,2,6,6- tetramethyl piperidines-nitrogen-
Oxide (TEMPO), add 10ml distilled water, rock, ultrasound, make its fully dispersed, obtain B liquid;
Synthetic reaction:B liquid is poured onto in A liquid, is covered, stir 12h.
Purifying:Add DMF to rinse, be centrifuged 3 times, be then again then transferred to solid with alcohol flushing, centrifugation 2 times
40ml, concentration is the NH of 30mmol/L4In F solution, 8h is stirred, filtered, last 90 DEG C of drying, and in 150 DEG C of vacuum drying
Lower activation 7h, that is, obtain the MIL-100 (Fe) of the inventive method preparation, is labeled as MIL-100 (Fe) -9#.
As shown in Figure 3, sample 8#, 9# show good X-ray diffraction peak, show sample 8#, 9# crystallinity very
Good, the XRD spectra to the MIL-100 (Fe) that hydro-thermal method in Fig. 1 synthesizes is similar, proves using piperidines nitroxide radical thing
When matter is as accelerator, MIL-100 (Fe) successfully synthesizes.
Table 1
The parameter of pore structure of the MIL-100 (Fe) that MIL-100 (Fe) prepared by embodiment 1~9 is prepared with hydro-thermal method is shown in
Table 1.
Claims (9)
1. the method that one kind prepares MIL-100 (Fe) at room temperature, it is characterised in that comprise the following steps:
(1)The mixed liquor of configuration iron powder and water, is subsequently adding concentrated nitric acid, stirs, and A liquid is obtained;
(2)The aqueous solution of 1,3,5- of configuration trimesic acids/accelerator, is obtained B liquid;
(3)By step(2)The B liquid of gained pours into step(1)In obtained A liquid, react at ambient temperature, obtain rough
MIL-100(Fe);
(4)By step(3)The rough MIL-100 of gained(Fe)It is centrifuged, DMF is then used successively
After alcohol flushing, centrifugation, the solid matter that will be obtained is soaked in NH4Stirred in F solution, by the solid of gained after filtering
Dry and activate, finally give the MIL-100 (Fe) of purifying.
2. method according to claim 1, it is characterised in that step(1)In the A liquid for being configured, iron powder, concentrated nitric acid, water
Molar ratio be 1:(0.37~1.2):(167~170).
3. method according to claim 1, it is characterised in that step(2)The accelerator be quinones, peroxide or
Piperidines nitroxide radical accelerator.
4. method according to claim 3, it is characterised in that the accelerator is benzoquinones, methylbenzoquinone, H2O2, peroxidating
Hydrogen isopropylbenzene or 2,2,6,6- tetramethyl piperidines-nitrogen-oxide.
5. method according to claim 1, it is characterised in that step(2)In the B liquid for being configured, 1,3,5- equal benzene front three
Acid, accelerator, the molar ratio of distilled water are:
(1)When accelerator is quinones, 1,3,5- trimesic acids:Accelerator:Distilled water=(0.66~0.68):(0.01~
0.1):(111~115);
(2)When accelerator is peroxide, 1,3,5- trimesic acids:Accelerator:Distilled water=(0.66~0.68):
(1.11~5.55):(111~115);
(3)When accelerator is piperidines nitroxide radical, 1,3,5- trimesic acids:Accelerator:Distilled water=
(0.66~0.68):(0.045~0.075):(111~115).
6. method according to claim 1, it is characterised in that step(3)The volume ratio of the B liquid and A liquid is 1:1~1:
1.5, the time of the reaction is 7-12 hours.
7. method according to claim 1, it is characterised in that step(4)The NH4The concentration of F solution be 25 ~
35mmol/L。
8. method according to claim 1, it is characterised in that step(4)The time of the stirring is 8h ~ 10h.
9. method according to claim 1, it is characterised in that step(4)The activation is the vacuum at 120 DEG C ~ 150 DEG C
Dry lower activation 2h ~ 10h.
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CN107445820A (en) * | 2017-08-10 | 2017-12-08 | 哈尔滨工业大学 | Floride-free, the solvent-free and Fast back-projection algorithm high yield metal-organic framework materials MIL 100 of one kind(Fe)Method |
CN107715916A (en) * | 2017-10-09 | 2018-02-23 | 贵州师范大学 | A kind of MIL 100(Fe)The preparation method and applications of nanocatalyst |
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CN107445820A (en) * | 2017-08-10 | 2017-12-08 | 哈尔滨工业大学 | Floride-free, the solvent-free and Fast back-projection algorithm high yield metal-organic framework materials MIL 100 of one kind(Fe)Method |
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CN107715916A (en) * | 2017-10-09 | 2018-02-23 | 贵州师范大学 | A kind of MIL 100(Fe)The preparation method and applications of nanocatalyst |
CN109876776A (en) * | 2019-02-02 | 2019-06-14 | 北京建筑大学 | Indium base MOF micro-nano powder and its room temperature preparation method and application |
CN109876776B (en) * | 2019-02-02 | 2022-04-15 | 北京建筑大学 | Indium-based MOF micro-nano powder and room-temperature preparation method and application thereof |
CN110639618A (en) * | 2019-10-14 | 2020-01-03 | 山东科技大学 | Freeze-drying type porous MIL-100 catalyst for benzene hydroxylation reaction and preparation method and application thereof |
CN111410749A (en) * | 2020-03-17 | 2020-07-14 | 广西民族大学 | Application of nano carrier MI L-100 (Fe) in loading of nitidine chloride |
CN111675684A (en) * | 2020-06-29 | 2020-09-18 | 广西壮族自治区农业科学院 | Method for extracting procyanidine from mulberry fruits |
TWI792222B (en) * | 2021-03-15 | 2023-02-11 | 國立中興大學 | Heterogeneous composite catalyst and its preparation method |
CN114247431A (en) * | 2022-01-14 | 2022-03-29 | 中南大学 | Method for preparing MIL-100(Fe) material at normal temperature and normal pressure and application thereof |
CN114247431B (en) * | 2022-01-14 | 2023-02-03 | 中南大学 | Method for preparing MIL-100 (Fe) material at normal temperature and normal pressure and application thereof |
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