CN106831886A - A kind of electrochemical sensor material for detecting urea and preparation method thereof - Google Patents
A kind of electrochemical sensor material for detecting urea and preparation method thereof Download PDFInfo
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- CN106831886A CN106831886A CN201710181541.2A CN201710181541A CN106831886A CN 106831886 A CN106831886 A CN 106831886A CN 201710181541 A CN201710181541 A CN 201710181541A CN 106831886 A CN106831886 A CN 106831886A
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 239000004202 carbamide Substances 0.000 title claims abstract description 40
- 239000000463 material Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 150000004700 cobalt complex Chemical class 0.000 claims abstract description 13
- 229910001429 cobalt ion Inorganic materials 0.000 claims abstract description 7
- XLJKHNWPARRRJB-UHFFFAOYSA-N cobalt(2+) Chemical compound [Co+2] XLJKHNWPARRRJB-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000126 substance Substances 0.000 claims abstract description 7
- 238000010276 construction Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- ROFVEXUMMXZLPA-UHFFFAOYSA-N Bipyridyl Chemical compound N1=CC=CC=C1C1=CC=CC=N1 ROFVEXUMMXZLPA-UHFFFAOYSA-N 0.000 claims description 11
- 239000013078 crystal Substances 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 10
- 239000010935 stainless steel Substances 0.000 claims description 10
- QAHREYKOYSIQPH-UHFFFAOYSA-L cobalt(II) acetate Chemical compound [Co+2].CC([O-])=O.CC([O-])=O QAHREYKOYSIQPH-UHFFFAOYSA-L 0.000 claims description 9
- 230000036571 hydration Effects 0.000 claims description 8
- 238000006703 hydration reaction Methods 0.000 claims description 8
- 229940011182 cobalt acetate Drugs 0.000 claims description 7
- 230000004044 response Effects 0.000 claims description 7
- CXHLVSRLJAYJLY-UHFFFAOYSA-N O.[K].[N+](=O)([O-])C1=C(C(=O)O)NC(NC1=O)=O Chemical compound O.[K].[N+](=O)([O-])C1=C(C(=O)O)NC(NC1=O)=O CXHLVSRLJAYJLY-UHFFFAOYSA-N 0.000 claims description 5
- 238000007605 air drying Methods 0.000 claims description 5
- 239000012153 distilled water Substances 0.000 claims description 5
- 239000012467 final product Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000000376 reactant Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- -1 5- nitroorotic acids potassium monohydrate Chemical class 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000003197 catalytic effect Effects 0.000 abstract description 5
- MITDXNUXOAYFGC-UHFFFAOYSA-N 1-prop-2-ynylbenzimidazole Chemical compound C1=CC=C2N(CC#C)C=NC2=C1 MITDXNUXOAYFGC-UHFFFAOYSA-N 0.000 abstract description 3
- WJFDCFHWFHCLIW-UHFFFAOYSA-N 2-(bromomethyl)-6-methylpyridine Chemical compound CC1=CC=CC(CBr)=N1 WJFDCFHWFHCLIW-UHFFFAOYSA-N 0.000 abstract 1
- 230000021615 conjugation Effects 0.000 abstract 1
- 238000011031 large-scale manufacturing process Methods 0.000 abstract 1
- 229910052700 potassium Inorganic materials 0.000 abstract 1
- 239000011591 potassium Substances 0.000 abstract 1
- 239000011540 sensing material Substances 0.000 abstract 1
- 235000013877 carbamide Nutrition 0.000 description 33
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 5
- 238000006555 catalytic reaction Methods 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 241000124008 Mammalia Species 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 3
- OPGJGRWULGFTOS-UHFFFAOYSA-N 5-nitro-2,4-dioxo-1h-pyrimidine-6-carboxylic acid Chemical compound OC(=O)C=1NC(=O)NC(=O)C=1[N+]([O-])=O OPGJGRWULGFTOS-UHFFFAOYSA-N 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- NIOBSDDVAXCMQG-UHFFFAOYSA-N [Co].[N+](=O)([O-])C1=C(C(=O)O)NC(NC1=O)=O Chemical compound [Co].[N+](=O)([O-])C1=C(C(=O)O)NC(NC1=O)=O NIOBSDDVAXCMQG-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 230000005518 electrochemistry Effects 0.000 description 2
- 230000003907 kidney function Effects 0.000 description 2
- 230000002503 metabolic effect Effects 0.000 description 2
- 230000004060 metabolic process Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000000618 nitrogen fertilizer Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 210000004243 sweat Anatomy 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000004143 urea cycle Effects 0.000 description 2
- 210000002700 urine Anatomy 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- JGUQDUKBUKFFRO-GGWOSOGESA-N (NE)-N-[(3E)-3-hydroxyiminobutan-2-ylidene]hydroxylamine Chemical compound O\N=C(/C)\C(\C)=N\O JGUQDUKBUKFFRO-GGWOSOGESA-N 0.000 description 1
- UZGKAASZIMOAMU-UHFFFAOYSA-N 124177-85-1 Chemical compound NP(=O)=O UZGKAASZIMOAMU-UHFFFAOYSA-N 0.000 description 1
- 208000009304 Acute Kidney Injury Diseases 0.000 description 1
- 208000037157 Azotemia Diseases 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 206010015856 Extrasystoles Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 208000008839 Kidney Neoplasms Diseases 0.000 description 1
- AHLPHDHHMVZTML-BYPYZUCNSA-N L-Ornithine Chemical compound NCCC[C@H](N)C(O)=O AHLPHDHHMVZTML-BYPYZUCNSA-N 0.000 description 1
- CKLJMWTZIZZHCS-REOHCLBHSA-N L-aspartic acid Chemical compound OC(=O)[C@@H](N)CC(O)=O CKLJMWTZIZZHCS-REOHCLBHSA-N 0.000 description 1
- 206010027336 Menstruation delayed Diseases 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- AHLPHDHHMVZTML-UHFFFAOYSA-N Orn-delta-NH2 Natural products NCCCC(N)C(O)=O AHLPHDHHMVZTML-UHFFFAOYSA-N 0.000 description 1
- UTJLXEIPEHZYQJ-UHFFFAOYSA-N Ornithine Natural products OC(=O)C(C)CCCN UTJLXEIPEHZYQJ-UHFFFAOYSA-N 0.000 description 1
- 206010037601 Pyelonephritis chronic Diseases 0.000 description 1
- 208000001647 Renal Insufficiency Diseases 0.000 description 1
- 206010038372 Renal arteriosclerosis Diseases 0.000 description 1
- 208000033626 Renal failure acute Diseases 0.000 description 1
- 201000011040 acute kidney failure Diseases 0.000 description 1
- 208000012998 acute renal failure Diseases 0.000 description 1
- 235000003704 aspartic acid Nutrition 0.000 description 1
- OQFSQFPPLPISGP-UHFFFAOYSA-N beta-carboxyaspartic acid Natural products OC(=O)C(N)C(C(O)=O)C(O)=O OQFSQFPPLPISGP-UHFFFAOYSA-N 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 210000001175 cerebrospinal fluid Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 201000006368 chronic pyelonephritis Diseases 0.000 description 1
- 150000001869 cobalt compounds Chemical class 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 150000001470 diamides Chemical class 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000840 electrochemical analysis Methods 0.000 description 1
- 238000000835 electrochemical detection Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000003862 health status Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 201000006370 kidney failure Diseases 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229940054441 o-phthalaldehyde Drugs 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229960003104 ornithine Drugs 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- ZWLUXSQADUDCSB-UHFFFAOYSA-N phthalaldehyde Chemical compound O=CC1=CC=CC=C1C=O ZWLUXSQADUDCSB-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 235000021075 protein intake Nutrition 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 210000003296 saliva Anatomy 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 208000009852 uremia Diseases 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
- C07F15/06—Cobalt compounds
- C07F15/065—Cobalt compounds without a metal-carbon linkage
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B2200/00—Indexing scheme relating to specific properties of organic compounds
- C07B2200/13—Crystalline forms, e.g. polymorphs
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyridine Compounds (AREA)
Abstract
The invention discloses a kind of electrochemical sensor material for detecting urea and preparation method thereof, the electrochemical sensor material is a kind of with the cobalt complex for determining space structure, and its chemical formula is CoC15H15N5O9, construction unit is [Co (C5HN3O6)(C10H8N2)(H2O)2]·H2O, crystallographic system is anorthic system, and space group is P 1, and cell parameter isα=90.800 °, β=102.747 °, γ=91.518 °, cobalt ions is the octahedra geometric configuration of hexa-coordinate.The preparation method of the cobalt complex is：2, the 2 ' second bipyridines with the big π keys of conjugation, 5 nitroorotic acid potassium are mixed according to a certain percentage with the cobalt ions with electro catalytic activity and is chemically reacted, a kind of cobalt complex is obtained.The preparation method is simple to operate, with low cost, is adapted to large-scale production.Obtained cobalt complex of the invention has good electro catalytic activity to urea, has potential application prospect as electrochemical sensing material.
Description
Technical field
The invention belongs to technical field of material chemistry, and in particular to a kind of electrochemical sensor material for detecting urea and its
Preparation method.
Background technology
Urea (Urea), also known as phosphoamide (Carbamide), the simplest organic compound being made up of C, N, O, H
One of.Also known as urea, the diamides of carbonic acid, molecular formula is H2NCONH2, it is a kind of white crystal, molecular mass 60.Urea is used as one
Neutral fertilizer is planted, is also current nitrogen content highest nitrogenous fertilizer.Urea is applied to various soil and plant.It is easy to maintain, user
Just, the destruction to soil is small, is a kind of larger chemical nitrogen fertilizer of current usage amount.Industrial ammonia and carbon dioxide exist
Certain condition urea synthesis.
Biology is with the chemical substance urea synthesis such as carbon dioxide, water, aspartic acid and ammonia.Promote the metabolism of urea synthesizing on the way
Footpath is a kind of anabolism, is called urea cycle, and also known as " ornithine circulation ", this process expends energy, but very necessary.Because containing
Nitrogenous wastes has toxicity, and is common metabolism product, it is necessary to be eliminated.Urea cycle is mammal and amphibian
Drain the main path of nitrogenous metabolic waste.
Urea is the main nitrogenous end-product of mammal and some fish vivo protein metabolic breakdowns.Urea is in liver
Blood (concentration in human body is in 2.5-7.5 μm of ol/L) is incorporated after generation, finally by kidney by urine ejection, a small amount of urea is by sweat
Discharge.Contain urea in the urine of mammal, amphibian and some fishes.
Detect that the content of internal urea can be with anticipation human health status, or assisted diagnosis some diseases.Urea is due to dividing
Son amount is small, and dissolving is easy to again, and extension is very big, therefore the urea concentration basic in cerebrospinal fluid, dropsy of serous cavity, saliva, sweat
Cause.Plasma wrea concentration is mainly influenceed by renal function and protein intake and catabolism situation.Acute renal failure, chronic renal
Inflammation, renal arteriosclerosis, chronic pyelonephritis, nephrophthisis, kidney neoplasms late period etc., when renal function is slightly damaged, urea can be caused to contain
Amount increases, and to renal failure, especially uremia diagnosis has special value, and can determine whether the state of an illness.Therefore, to the quick of urea
Effective detection seems great meaning.
Current clinical labororatory determines urea most common method has diacetyl-oxime method, neutralization titration, enzyme coupling ultraviolet
AAS and o-phthalaldehyde method.Report about Electrochemical Detection urea is very few.Electrochemical analysis detection have it is simple,
Fast, the advantages of sensitivity is high, causes the great interest of people in recent years.
The present invention, by simple hydro-thermal reaction, is prepared for one kind with cobalt acetate, bipyridyl and nitroorotic acid as raw material
Cobalt complex, the compound has good electro catalytic activity to urea, can be as the modification material of chemical electrode
Material, processability is excellent, detect quick electrochemical sensor etc..Cobalt compound prepared by the present invention is used as detection urea
Electrochemical sensor material, has potential application prospect in electro-catalysis sensing detection urea.
The content of the invention
The technical problems to be solved by the invention are directed to prior art, there is provided a kind of electrochemistry for detecting urea is passed
Sensor material and preparation method thereof.
The present invention is for the solution technical scheme taken of above-mentioned technical problem：A kind of electrochemistry for detecting urea is passed
Sensor material, the electrochemical sensor material is a kind of cobalt complex (abbreviation complex), and the complex has what is determined
Space structure, construction unit is [Co (C5HN3O6)(C10H8N2)(H2O)2]·H2O, its chemical formula is CoC15H15N5O9, crystallographic system is
Anorthic system, space group is P-1, and cell parameter is α=
90.800 °, β=102.747 °, γ=91.518 °, cobalt ions is the octahedra geometric configuration of hexa-coordinate.
A kind of above-mentioned preparation method for detecting the electrochemical sensor material of urea, comprises the following steps：
(1) to adding appropriate 5- nitroorotic acid potassium monohydrate, 2,2 '-bigeminy pyrrole in 25mL polytetrafluoroethyllining linings
Pyridine and hydration cobalt acetate, are subsequently adding 8~15mL of distilled water, stir, and obtain reactant mixture；
(2) above-mentioned polytetrafluoroethyllining lining is sealed, is put into stainless steel cauldron, stainless steel cauldron is put into baking oven
In, then 100~125 DEG C of 48~72h of heating response naturally cool to room temperature, open reactor and obtain brown color bulk crystals；
(3) brown color bulk crystals are taken out, natural air drying, obtains final product described electrochemical sensor material.
Preferably, it is described participate in reaction material be chemistry it is pure, it is described hydration cobalt acetate be four hydration cobalt acetates.
It is preferred that the mol ratio of the 5- nitroorotic acids potassium monohydrate, 2,2 '-second bipyridine and hydration cobalt acetate is
1: 1: 1~1.5.
Compared with prior art, the advantage of the invention is that：
With conjugatedπbond 2,2 '-second bipyridine, nitroorotic acid and the cobalt ions with electrochemical catalysis activity are entered
Row chemical reaction, is obtained new bipyridyl, nitroorotic acid cobalt complex, and the compound has as electro catalytic activity material
There are accurate space structure (Fig. 1) and accurate molecular formula；Cobalt ions can utilize 3d tracks that the coordination of stabilization is formed with part
Key, is conducive to electronics to transmit, and promotes the carrying out of electrochemical reaction, so as to present have good electro catalytic activity to urea.
Prepared cobalt complex has potential application prospect as electro-catalysis chemical sensor material.
Brief description of the drawings
Fig. 1 is 2,2 '-second bipyridine of the invention, the construction unit figure of 5- nitroorotic acid cobalt complexes；
Fig. 2 is 2,2 '-second bipyridine of the invention, 5- nitroorotic acids cobalt complex to urea electrochemical catalysis response diagram
(a：Naked glass electrode, b：Glass electrode after complex decorating, c：Glass electrode after complex decorating and to add urea molten
Liquid).
Specific embodiment
The present invention is described in further detail with reference to embodiments.
Embodiment 1：
To in 25mL polytetrafluoroethyllining linings add 5- nitroorotic acid potassium monohydrate (0.5mmol, 0.1286g), 2,
2 '-second bipyridine (0.5mmol, 0.0781g), and Co (Ac)2·4H2O (0.5mmol, 0.1245g), and add distilled water 15mL,
Stirring, obtains reactant mixture；Polytetrafluoroethyllining lining is sealed, is put into stainless steel cauldron, stainless steel cauldron is put into
In baking oven, then 100 DEG C of heating response 72h naturally cool to room temperature, open reactor and obtain brown color bulk crystals；Take out brilliant
Body, natural air drying obtains final product described cobalt complex.
Embodiment 2：
To in 25mL polytetrafluoroethyllining linings add 5- nitroorotic acid potassium monohydrate (0.1mmol, 0.0257g), 2,
2 '-second bipyridine (0.1mmol, 0.0156g), and Co (Ac)2·4H2O (0.15mmol, 0.0374g), and add distilled water 8mL,
Stirring, obtains reactant mixture；Polytetrafluoroethyllining lining is sealed, is put into stainless steel cauldron, stainless steel cauldron is put into
In baking oven, then 125 DEG C of heating response 48h naturally cool to room temperature, open reactor and obtain brown color bulk crystals；Take out brilliant
Body, natural air drying obtains final product described cobalt complex.
Embodiment 3：
To in 25mL polytetrafluoroethyllining linings add 5- nitroorotic acid potassium monohydrate (0.2mmol, 0.0514g), 2,
2 '-second bipyridine (0.2mmol, 0.0216g), and Co (Ac)2·4H2O (0.25mmol, 0.0623g), and add distilled water 10mL,
Stirring, obtains reactant mixture；Polytetrafluoroethyllining lining is sealed, is put into stainless steel cauldron, stainless steel cauldron is put into
In baking oven, then 115 DEG C of heating response 60h naturally cool to room temperature, open reactor and obtain brown color bulk crystals；Take out brilliant
Body, natural air drying obtains final product described cobalt complex.
Tan crystals obtained in embodiment 1-3 are carried out into structured testing with Single Crystal X-ray, as a result shows that the brown color is brilliant
Body is cobalt complex, its construction unit as shown in figure 1, its molecular formula is CoC15H15N5O9, construction unit is [Co
(C5HN3O6)(C10H8N2)(H2O)2]·H2O, crystallographic system is anorthic system, and space group is P-1, and cell parameter isα=90.800 °, β=102.747 °, γ=91.518 °, cobalt ions
It is the octahedra geometric configuration of hexa-coordinate.
By obtained cobalt complex CoC15H15N5O9Electrocatalysis characteristic test is carried out to urea, the change is as a result shown
Compound has good electro-catalysis response performance (such as Fig. 2) to urea.
Claims (4)
1. a kind of electrochemical sensor material for detecting urea, it is characterised in that the electrochemical sensor material is a kind of
With the cobalt complex for determining space structure, its chemical formula is CoC15H15N5O9, construction unit is [Co (C5HN3O6)
(C10H8N2)(H2O)2]·H2O, crystallographic system is anorthic system, and space group is P-1, and cell parameter isα=90.800 °, β=102.747 °, γ=91.518 °, cobalt ions
It is the octahedra geometric configuration of hexa-coordinate.
2. a kind of preparation method of the as claimed in claim 1 electrochemical sensor material for being used to detect urea, its feature exists
In comprising the following steps：
(1) to added in 25mL polytetrafluoroethyllining linings appropriate 5- nitroorotic acid potassium monohydrate, 2,2 '-second bipyridine and
Hydration cobalt acetate, is subsequently adding 8~15mL of distilled water, stirs, and obtains reactant mixture；
(2) above-mentioned polytetrafluoroethyllining lining is sealed, is put into stainless steel cauldron, stainless steel cauldron is put into baking oven,
100~125 DEG C of 48~72h of heating response, then naturally cool to room temperature, open reactor and obtain brown color bulk crystals；
(3) brown color bulk crystals are taken out, natural air drying, obtains final product described electrochemical sensor material.
3. the preparation method for detecting the electrochemical sensor material of urea according to claim 2, it is characterised in that
The mol ratio of the 5- nitroorotic acids potassium monohydrate, 2,2 '-second bipyridine and hydration cobalt acetate is 1: 1: 1~1.5.
4. the preparation method for detecting the electrochemical sensor material of urea according to claim 2, it is characterised in that
It is described participate in reaction material be chemistry it is pure, it is described hydration cobalt acetate be four hydration cobalt acetates.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103435659A (en) * | 2013-08-12 | 2013-12-11 | 宁波大学 | Cobalt complex with electrochemical catalytic activity |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103435659A (en) * | 2013-08-12 | 2013-12-11 | 宁波大学 | Cobalt complex with electrochemical catalytic activity |
Non-Patent Citations (1)
| Title |
|---|
| M. JOHN PLATER等，: "Hydrothermal crystallisation of metal (II) orotates(M_/nickel,cobalt, manganese or zinc). Effect of 2,2-bipyridyl, 2,2-dipyridyl amine, 1-methyl-3-(2-pyridyl)pyrazole, phenanthroline and 2,9-Dimethyl -1,10-phenanthroline upon structure", 《INORGANICA CHIMICA ACTA》 * |
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