CN105322190B - One kind utilizes plant extraction liquid fabricated in situ high stability three-dimensional H2O2The method of electroreduction catalysis electrode - Google Patents
One kind utilizes plant extraction liquid fabricated in situ high stability three-dimensional H2O2The method of electroreduction catalysis electrode Download PDFInfo
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- H01M4/90—Selection of catalytic material
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Abstract
One kind utilizes plant extraction liquid fabricated in situ high stability three-dimensional H2O2The method of electroreduction catalysis electrode, the present invention relates to three-dimensional H2O2The preparation method of electroreduction catalysis electrode, it is easy to fall off in order to solve existing DPPFC catalysis electrodes, the problem of less stable and relatively low power.The synthetic method of electrode：First, carbon base body is cut, is then immersed in strong acid solution and carries out surface oxidation；2nd, the carbon base body after aoxidizing is submerged initially in the Polymer Solution of polyelectrolyte, and metal salt and surfactant are dissolved in ultra-pure water, are then again immersed carbon base body and are modified in the mixed liquor；3rd, the blade or pericarp of plant are shredded, washed, and extract plant extraction liquid, and the carbon base body of modified is immersed in extract solution, obtains the three-dimensional H2O2Electroreduction catalysis electrode.Noble metal and its alloy catalyst are directly loaded on collector by the present invention, and the direct hydrogen peroxide fuel battery catalytic cathode with high activity and high stability is prepared in original position.
Description
Technical field
The present invention relates to a kind of three-dimensional H2O2The preparation method of electroreduction catalysis electrode, and in particular to utilize plant extraction liquid
The method of fabricated in situ high stability catalysis electrode.
Background technology
Direct hydrogen peroxide fuel battery (DPPFC) is a kind of not only using hydrogen peroxide as fuel but also be the new combustion of oxidant
Expect battery.Because the electroxidation of hydrogen peroxide and the product of electro-reduction reaction are only water and oxygen, so DPPFC is real " green
Color and zero carbon emission " TRT.Recent studies have shown that (Hydrogen peroxide as sustainable fuel:
electrocatalysts for production with a solar cell and decomposition with a
Fuel cell, Chem.Commun.46 (2010) 7334-7336.), it is catalyst using Cob altporphyrin, can using solar cell
With efficiently by the O in air2H is reduced in acid medium2O2, efficiency is up to 100%.Therefore, prepared using solar energy
H2O2, utilize H2O2Fuel cell power generation, can be achieved real zero carbon emission.In addition, if DPPFC is as under water and space power system,
There is provided O while output electric energy2, kill two birds with one stone.Direct hydrogen peroxide fuel battery has two kinds of structures of single chamber and dual chamber.Single chamber
Without barrier film between DPPFC anodes and negative electrode, the catalysis H of anode catalyst selectivity is utilized2O2Electroxidation and cathod catalyst selection
The catalysis H of property2O2Electroreduction generates electricity, and electrolyte can be that acid can also be alkali.Dual chamber DPPFC and conventional fuel cell structure
Identical, anode and negative electrode are separated with solid electrolyte film, and anolyte is alkali, and catholyte is acid, utilizes H2O2In alkali
Electrochemical catalytic oxidization and catalysis electro-reduction reaction in acid produce electric energy.Single chamber DPPFC is simple in construction, but open-circuit voltage and
Power output is low.Research shows (A membraneless hydrogen peroxide fuel cell using Prussian
Blue as cathode material, Energy Environ.Sci.5 (2012) 8225-8228.), loaded using carbon paper
Prussian blue is negative electrode, and nickel is anode, with containing 0.5mol/L H2O20.1M HCl solutions constitute single chamber DPPFC, it is opened
Road voltage can be promoted to 1.55mW/cm up to 0.6V, maximum power density2, this is the single chamber DPPFC reported at present highest
Energy.Dual chamber DPPFC open-circuit voltages and power output are obviously higher than single chamber DPPFC.Nickel is wherein carried as anode using carbon, carbon carries Pt and is
Negative electrode, Nafion membrane is electrolyte, the dual chamber DPPFC with conventional fuel cell MEA structures, and open-circuit voltage reaches 0.9V, maximum
Power density 3.75mW/cm2(Response to Disselkamp:Direct peroxide/peroxide fuel cell
as a novel type fuel cell,Inter.J.Hydrogen Energy 36(2011)869-875.)。
Compared with other liquid base fuel batteries, DPPFC battery performance is still substantially relatively low.So, prepare high property
Energy, the catalysis electrode of low cost are the keys for improving battery performance.The cathode reaction of direct hydrogen peroxide is generation in solid-liquid two
Multimolecular reaction on boundary, while with the generation (H of gas2O2Decomposition reaction).It is therefore desirable to which electrode is with big
Area and good gas-liquid mass transfer performance are catalyzed, and it is stable in strong acid environment.The preparation of conventional fuel cell electrode, generally
It is first to prepare fine catalyst, composition suspension is then mixed with conductive carbon (carbon black, CNT etc.) and binding agent, is coated with
In on collector (carbon cloth, carbon paper etc.).In order to improve the activity of catalyst, catalyst fines is generally prepared into a nanometer chi
Very little, these nano-particles have larger specific surface area and higher surface energy, due to Oswald that moral effect, easily assemble shape
Into larger particle, and then reunite, come off.So, electrode prepared by conventional method is not suitable for direct hydrogen peroxide fuel
Battery electrode.
The content of the invention
Easy to fall off the invention aims to solve existing DPPFC catalysis electrodes, less stable and power are relatively low
The problem of, and one kind is provided using plant extraction liquid fabricated in situ high stability three-dimensional H2O2The method of electroreduction catalysis electrode.
The present invention utilizes plant extraction liquid fabricated in situ high stability three-dimensional H2O2The method of electroreduction catalysis electrode is by following
Step is realized：
First, carbon base body is cut, is then immersed in strong acid solution and carries out surface oxidation, it is carbon-based after being aoxidized
Body；
2nd, the carbon base body after oxidation is placed in distilled water and cleaned repeatedly, the macromolecule of immersion polyelectrolyte is molten after drying
4~10 hours in liquid, taking-up is rinsed repeatedly with distilled water, and metal salt and surfactant then are substantially dissolved in into ultra-pure water
In, mixed liquor is obtained, then carbon base body is placed in mixed liquor to the carbon base body for obtaining modified；
3rd, the blade or pericarp of natural plants are shredded, washed, plant extraction liquid is obtained after extracted processing, then
The carbon base body for the modified that step 2 is obtained is immersed in extract solution 4~10 hours, obtains high stability three-dimensional H2O2Electroreduction is urged
Polarizing electrode；
Natural plants wherein described in step 3 are aloe, eucalyptus leaves, tobacco or banana skin；The height of described polyelectrolyte
Molecular solution is the aqueous solution, the aqueous solution of poly- ammonium acetate, the aqueous solution of hexamethylene diamine or the phthalic acid diethyl of polyethyleneimine
The aqueous solution of omega-diol diacrylate.
Utilization plant extraction liquid fabricated in situ high stability three-dimensional H of the present invention2O2The method of electroreduction catalysis electrode
Use the carbon cloth with three-dimensional structure, carbon paper or carbon felt etc. for matrix, noble metal and its alloy catalyst are directly loaded in collection
On fluid, the direct hydrogen peroxide fuel battery catalytic cathode with high activity and high stability is prepared in original position.Due to most
Number water is cheap and easy to get, and low toxicity uses it to realize the reason of green syt for reducing agent and stabilizer, to a certain extent
Read.And electrostatic self-assembled principle is utilized, original position prepares catalyst nanoparticles, is effectively improved the stability of electrode.This
Outside, it is workable because preparation method is simple, and raw material sources are extensively, can be widely used in direct hydrogen peroxide fuel
The preparation of cell cathode.
Brief description of the drawings
Fig. 1 is the three-dimensional H that embodiment one to example IV is obtained2O2Electroreduction catalysis electrode is to hydrogen peroxide electroreduction
Cyclic voltammetry scan curve map, 1-Au-Pd/CFC, 2-Pd-Ag/CP, 3-Pd-Pt/CP, 4-Au-Pd/CF；
Fig. 2 be the Au-Pd/CFC obtained using embodiment one as negative electrode, Ni/Ni-foam is anode, the DPPFC of composition electricity
Pond performance map.
Fig. 3 be the Au-Pd/CFC obtained using embodiment one as negative electrode, Ni/Ni-foam is anode, the DPPFC of composition electricity
Pond stability curve map.
Embodiment
Embodiment one：Present embodiment utilizes plant extraction liquid fabricated in situ high stability three-dimensional H2O2Electroreduction
The method of catalysis electrode is realized according to the following steps：
First, carbon base body is cut, is then immersed in strong acid solution and carries out surface oxidation, it is carbon-based after being aoxidized
Body；
2nd, the carbon base body after oxidation is placed in distilled water and cleaned repeatedly, the macromolecule of immersion polyelectrolyte is molten after drying
4~10 hours in liquid, taking-up is rinsed repeatedly with distilled water, and metal salt and surfactant then are substantially dissolved in into ultra-pure water
In, mixed liquor is obtained, then carbon base body is placed in mixed liquor to the carbon base body for obtaining modified；
3rd, the blade or pericarp of natural plants are shredded, washed, plant extraction liquid is obtained after extracted processing, then
The carbon base body for the modified that step 2 is obtained is immersed in extract solution 4~10 hours, obtains high stability three-dimensional H2O2Electroreduction is urged
Polarizing electrode；
Natural plants wherein described in step 3 are aloe, eucalyptus leaves, tobacco or banana skin；The height of described polyelectrolyte
Molecular solution is polyethyleneimine, poly- ammonium acetate, hexamethylene diamine (H+) or PDDA is water-soluble
Liquid.
The extraction process of present embodiment natural plants is mainly the reductive polysacchride extracted in plant.
Present embodiment, for matrix, utilizes polyelectrolyte height with the carbon cloth with Three-dimensional Open structure, carbon paper and carbon felt etc.
Molecular modification carbon base body surface, and combined using metal ions such as electrostatic self-assembled and Pt, Pd, Au, Ag, with extracted form natural plant
Liquid is reducing agent and stabilizer, and in-situ reducing prepares the catalyst particle with high stability high activity.The preparation method is distinguished
In the preparation of conventional fuel cell electrode, catalyst particle is directly loaded on collector, and it is high steady that binder free is prepared in original position
Fixed catalysis electrode, it is to avoid harmful effect of the acid with strong oxidizing property to binding agent etc., and electrode is with big catalysis area and good
Good gas-liquid mass transfer performance, effectively increases the specific surface area of electrode.Further, since preparation method is simple, it is workable,
And raw material sources are extensive.
Embodiment two：Present embodiment is from the carbon base body described in step one unlike embodiment one
Carbon cloth, carbon paper or carbon felt.Other steps and parameter are identical with embodiment one.
Embodiment three：Present embodiment and the strong acid described in step one unlike embodiment one or two
Solution is the H that mass concentration is 98%2SO4, mass concentration be 65% HNO3Or H2SO4-HNO3Nitration mixture.Other steps and ginseng
Number is identical with embodiment one or two.
Present embodiment is H when strong acid solution2SO4-HNO3During nitration mixture, it can be mixed by any ratio.
Embodiment four：Described in step 2 unlike one of present embodiment and embodiment one to three
The mass concentration of the Polymer Solution of polyelectrolyte is 10%~40%.Other steps and parameter and embodiment one to three
One of it is identical.
Embodiment five：Described in step 2 unlike one of present embodiment and embodiment one to four
Metal salt is Pt villaumite, Pt nitrate, Pd villaumite, Pd nitrate, Au villaumite, one kind in Ag nitrate or many
The mixture planted.Other steps and parameter are identical with one of embodiment one to four.
Embodiment six：Present embodiment is from the metal salt described in step 2 unlike embodiment five
AgNO3、HAuCl4、Pd(NO3)2、PdCl2、H2PtCl4In one or more mixtures.Other steps and parameter with it is specific
Embodiment five is identical.
Embodiment seven：Step 2 mixed liquor unlike one of present embodiment and embodiment one to six
In metal ion concentration be 0.05molL-1~0.5molL-1, the concentration of surfactant is 0molL-1~
2.0mol·L-1.Other steps and parameter are identical with one of embodiment one to six.
Embodiment eight：Described in step 2 unlike one of present embodiment and embodiment one to seven
Surfactant is cetyl trimethylammonium bromide (CTAB), polyvinylpyrrolidone (PVP), lauryl sodium sulfate
Or neopelex (SDBS) (SDS).Other steps and parameter are identical with one of embodiment one to seven.
Embodiment nine：Step 2 metal salt unlike one of present embodiment and embodiment one to eight
It is substantially dissolved in surfactant by magnetic agitation in ultra-pure water.Other steps and parameter and embodiment one to eight
One of it is identical.
Embodiment ten：Described in step 3 unlike one of present embodiment and embodiment one to nine
The method of extraction process is steam distillation, cooking process or direct extrusion.Other steps and parameter and embodiment
One of one to nine is identical.
Embodiment 11：Step 3 unlike one of present embodiment and embodiment one to ten is walking
The carbon base body of rapid two obtained modifieds is immersed in extract solution 6~8 hours.Other steps and parameter and embodiment one
It is identical to one of ten.
Embodiment one：The present embodiment utilizes plant extraction liquid fabricated in situ high stability three-dimensional H2O2Electroreduction catalysis electrode
Method implement according to the following steps：
First, 1cm*1cm is cut into carbon cloth (carbon cloth, CC), is then immersed in the mixing of concentrated nitric acid and the concentrated sulfuric acid
(volume ratio 3 in solution:1) surface oxidation is carried out in 4 hours, the carbon base body after being aoxidized；
2nd, the carbon base body after oxidation is placed in distilled water and cleaned repeatedly, after drying 4 hours in immersion hexamethylene diamine, taken out
Rinsed, then metal salt and surfactant are substantially dissolved in ultra-pure water repeatedly with distilled water, obtain 0.5mmol L- 1HAuCl4+0.5mmol L-1PdCl2+0.1mol L-1SDS mixed liquors, the carbon base body after flushing is placed in 4 hours in mixed liquor and obtained
To the carbon base body of modified；
3rd, Tobacco Leaf is shredded, washed, extracted through steam distillation and obtain plant extraction liquid (composition such as nicotine),
Then the carbon base body of modified step 2 obtained is immersed in extract solution 8 hours, obtains high stability three-dimensional H2O2Electroreduction
Catalysis electrode (Au-Pd/CFC electrodes).
In 2.0mol L-1H2O2+2.0mol L-1H2SO4Urging for the electrode pair hydrogen peroxide electro-reduction reaction is tested in solution
Change performance, find under -0.2V current potentials, the reduction current on Au-Pd/CFC electrodes is 484mA cm-2.Using Ni/Ni-foam as
Anode, Au-Pd/CFC is negative electrode, constitutes DPPFC, wherein anolyte is 4.0mol L-1KOH+1.0mol L-1H2O2, it is cloudy
Pole electrolyte is 2.0mol L-1H2SO4+2.0mol L-1H2O2, flow velocity is 10mL min–1, test temperature is 20 DEG C.Battery
Open-circuit voltage be up to 0.9V, peak power reaches 22.8mW cm-2.It in current density is 30mA cm that Fig. 3, which is,-2Constant current bar
Under part, the stability test energy curve map, it can be seen that the electrode has good stability.
Embodiment two：The present embodiment utilizes plant extraction liquid fabricated in situ high stability three-dimensional H2O2Electroreduction catalysis electrode
Method implement according to the following steps：
First, 1cm*1cm is cut into carbon paper (carbon paper, CP), is then immersed in the dense sulphur that commercial concentration is 98%
Surface oxidation is carried out in acid 6 hours, the carbon base body after being aoxidized；
2nd, the carbon base body after oxidation is placed in distilled water and cleaned repeatedly, O-phthalic acid diethylene glycol is immersed after drying
6 hours in diacrylate, taking-up is rinsed repeatedly with distilled water, is then substantially dissolved in metal salt and surfactant ultrapure
In water, 0.5mmol L are obtained-1AgNO3+0.2mmol L-1Pd(NO3)2+0.1mol L-1PVP mixed liquors, the carbon base body after flushing
It is placed in the carbon base body that 4 hours obtain modified in mixed liquor；
3rd, aloe is shredded, washed, extracted through cooking process and obtain extract solution from aloe, the modification that then step 2 is obtained
The carbon base body crossed is immersed in extract solution 8 hours, obtains high stability three-dimensional H2O2Electroreduction catalysis electrode (Pd-Ag/CP electricity
Pole).
In 2.0mol L-1H2O2+2.0mol L-1H2SO4Urging for the electrode pair hydrogen peroxide electro-reduction reaction is tested in solution
Change performance, under -0.2V current potentials, the reduction current on Pd-Ag/CP electrodes is 302mA cm-2.Using the Ni/Ni-foam of preparation as
Anode, Pd-Ag/CP is negative electrode, and the DPPFC of composition, wherein anolyte are 4.0mol L-1KOH+1.0mol L-1H2O2, it is cloudy
Pole electrolyte is 2.0mol L-1H2SO4+2.0mol L-1H2O2, flow velocity is 10mL min–1, test temperature is 20 DEG C.Battery
Open-circuit voltage be up to 0.87V, peak power reaches 17.4mW cm-2。
Embodiment three：The present embodiment utilizes plant extraction liquid fabricated in situ high stability three-dimensional H2O2Electroreduction catalysis electrode
Method implement according to the following steps：
First, 1cm*1cm is cut into carbon paper (carbon paper, CP), is then immersed in the nitric acid that commercial concentration is 65%
Middle progress surface oxidation 8 hours, the carbon base body after being aoxidized；
2nd, the carbon base body after oxidation is placed in distilled water and cleaned repeatedly, immersed in poly- ammonium acetate 7 hours, take after drying
Go out and rinsed repeatedly with distilled water, then metal salt and surfactant are substantially dissolved in ultra-pure water, obtain 0.1mmol L- 1H2PtCl6+0.25mmol L-1PdCl2+0.1mol L-1CTAB mixed liquors, the carbon base body after flushing is placed in mixed liquor 4 hours
Obtain the carbon base body of modified；
3rd, banana skin is shredded, washed, extracted through cooking process and obtain banana skin extract solution, then step 2 is obtained
The carbon base body of modified is immersed in extract solution 8 hours, obtains high stability three-dimensional H2O2Electroreduction catalysis electrode (Pd-Pt/CP
Electrode).
In 2.0mol L-1H2O2+2.0mol L-1H2SO4Urging for the electrode pair hydrogen peroxide electro-reduction reaction is tested in solution
Change performance, under -0.2V current potentials, the reduction current on Pd-Pt/CP electrodes is 300mA cm-2.Using the Ni/Ni-foam of preparation as
Anode, Pd-Pt/CP is negative electrode, and the DPPFC of composition, wherein anolyte are 4.0mol L-1KOH+1.0mol L-1H2O2, it is cloudy
Pole electrolyte is 2.0mol L-1H2SO4+2.0mol L-1H2O2, flow velocity is 10mL min–1, test temperature is 20 DEG C.Battery
Open-circuit voltage be up to 0.82V, peak power reaches 15mW cm-2。
Example IV：The present embodiment utilizes plant extraction liquid fabricated in situ high stability three-dimensional H2O2Electroreduction catalysis electrode
Method implement according to the following steps：
First, 1cm*1cm is cut into carbon felt (carbon felt, CF), the mixing for being then immersed in concentrated nitric acid and the concentrated sulfuric acid is molten
Liquid (volume ratio 1:3) surface oxidation is carried out in 8 hours, the carbon base body after being aoxidized；
2nd, the carbon base body after oxidation is placed in distilled water and cleaned repeatedly, after drying 10 hours in immersion polyethyleneimine,
Taking-up is rinsed repeatedly with distilled water, and then metal salt and surfactant are substantially dissolved in ultra-pure water, 0.1mmol is obtained
L-1HAuCl4+0.2mmol L-1PdCl2+0.1mol L-1SDBS mixed liquors, the carbon base body after flushing is placed in mixed liquor 6 hours
Obtain the carbon base body of modified；
3rd, aloe is shredded, washed, size-reduced extrusion is extracted and obtains extract solution from aloe, and then step 2 is obtained
The carbon base body of modified is immersed in extract solution 8 hours, obtains high stability three-dimensional H2O2Electroreduction catalysis electrode (Au-Pd/CF
Electrode).
In 2.0mol L-1H2O2+2.0mol L-1H2SO4Urging for the electrode pair hydrogen peroxide electro-reduction reaction is tested in solution
Change performance, under -0.2V current potentials, the reduction current on Au-Pd/CF electrodes is 287mA cm-2.Using the Ni/Ni-foam of preparation as
Anode, Au-Pd/CF is negative electrode, and the DPPFC of composition, wherein anolyte are 4.0mol L-1KOH+1.0mol L-1 H2O2,
Catholyte is 2.0mol L-1H2SO4+2.0mol L-1H2O2, flow velocity is 10mL min–1, test temperature is 20 DEG C.Electricity
The open-circuit voltage in pond is up to 0.82V, and peak power reaches 15.3mW cm-2。
Claims (9)
1. one kind utilizes plant extraction liquid fabricated in situ high stability three-dimensional H2O2The method of electroreduction catalysis electrode, its feature exists
Then follow these steps to realize：
First, carbon base body is cut, is then immersed in strong acid solution and carries out surface oxidation, the carbon base body after being aoxidized；
2nd, the carbon base body after oxidation is placed in distilled water and cleaned repeatedly, after drying 4 in the Polymer Solution of immersion polyelectrolyte
~10 hours, taking-up was rinsed repeatedly with distilled water, and then metal salt and surfactant are substantially dissolved in ultra-pure water, obtained
Mixed liquor, then carbon base body is placed in mixed liquor to the carbon base body for obtaining modified；
3rd, the blade or pericarp of natural plants are shredded, washed, plant extraction liquid is obtained after extracted processing, then step
The carbon base body of two obtained modifieds is immersed in extract solution 4~10 hours, obtains high stability three-dimensional H2O2Electroreduction catalysis electricity
Pole；
Natural plants wherein described in step 3 are aloe, eucalyptus leaves, tobacco or banana skin；The macromolecule of described polyelectrolyte
Solution is the aqueous solution of polyethyleneimine or the aqueous solution of PDDA；Gold described in step 2
It is Pt villaumite, Pt nitrate, Pd villaumite, Pd nitrate, Au villaumite, one kind in Ag nitrate or many to belong to salt
The mixture planted.
2. one kind according to claim 1 utilizes plant extraction liquid fabricated in situ high stability three-dimensional H2O2Electroreduction is catalyzed
The method of electrode, it is characterised in that the carbon base body described in step one is carbon cloth, carbon paper or carbon felt.
3. one kind according to claim 1 utilizes plant extraction liquid fabricated in situ high stability three-dimensional H2O2Electroreduction is catalyzed
The method of electrode, it is characterised in that the strong acid solution described in step one is the H that mass concentration is 98%2SO4, mass concentration be
65% HNO3Or H2SO4-HNO3Nitration mixture.
4. one kind according to claim 1 utilizes plant extraction liquid fabricated in situ high stability three-dimensional H2O2Electroreduction is catalyzed
The method of electrode, it is characterised in that the mass concentration of the Polymer Solution of the polyelectrolyte described in step 2 is 10%~40%.
5. one kind according to claim 1 utilizes plant extraction liquid fabricated in situ high stability three-dimensional H2O2Electroreduction is catalyzed
The method of electrode, it is characterised in that the concentration of the metal ion in step 2 mixed liquor is 0.05molL-1~0.5molL-1, the concentration of surfactant is 2.0molL-1。
6. one kind according to claim 1 utilizes plant extraction liquid fabricated in situ high stability three-dimensional H2O2Electroreduction is catalyzed
The method of electrode, it is characterised in that the surfactant described in step 2 is cetyl trimethylammonium bromide, polyvinyl pyrrole
Alkanone, lauryl sodium sulfate or neopelex.
7. one kind according to claim 1 utilizes plant extraction liquid fabricated in situ high stability three-dimensional H2O2Electroreduction is catalyzed
The method of electrode, it is characterised in that step 2 metal salt and surfactant are substantially dissolved in ultra-pure water by magnetic agitation.
8. one kind according to claim 1 utilizes plant extraction liquid fabricated in situ high stability three-dimensional H2O2Electroreduction is catalyzed
The method of electrode, it is characterised in that the method for the extraction process described in step 3 is steam distillation, cooking process or directly squeezed
Platen press.
9. one kind according to claim 1 utilizes plant extraction liquid fabricated in situ high stability three-dimensional H2O2Electroreduction is catalyzed
The method of electrode, it is characterised in that step 3 is immersed in the carbon base body of modified in extract solution 6~8 hours.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097640A (en) * | 2011-01-12 | 2011-06-15 | 湖南科技大学 | Method for manufacturing fuel cell capable of synthesizing acetic acid simultaneously |
| CN103346332A (en) * | 2013-05-31 | 2013-10-09 | 哈尔滨工程大学 | Preparation method of carbon-free binder-free all-metal three-dimensional porous H2O2 electrooxidation catalytic electrode |
| CN103343378A (en) * | 2013-07-09 | 2013-10-09 | 北京工业大学 | Preparation method and application of carbon nanotube doped Nafion membrane modified high-stability catalytic electrode |
| CN103400996A (en) * | 2013-08-20 | 2013-11-20 | 哈尔滨工程大学 | Method of taking carbon-modified and palladium-loaded cosmetic cotton as cathode material of H2O2 based fuel cell |
| CN104282920A (en) * | 2013-07-04 | 2015-01-14 | 华中科技大学 | Preparation method of metal-free oxygen reduction catalyst |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102097640A (en) * | 2011-01-12 | 2011-06-15 | 湖南科技大学 | Method for manufacturing fuel cell capable of synthesizing acetic acid simultaneously |
| CN103346332A (en) * | 2013-05-31 | 2013-10-09 | 哈尔滨工程大学 | Preparation method of carbon-free binder-free all-metal three-dimensional porous H2O2 electrooxidation catalytic electrode |
| CN104282920A (en) * | 2013-07-04 | 2015-01-14 | 华中科技大学 | Preparation method of metal-free oxygen reduction catalyst |
| CN103343378A (en) * | 2013-07-09 | 2013-10-09 | 北京工业大学 | Preparation method and application of carbon nanotube doped Nafion membrane modified high-stability catalytic electrode |
| CN103400996A (en) * | 2013-08-20 | 2013-11-20 | 哈尔滨工程大学 | Method of taking carbon-modified and palladium-loaded cosmetic cotton as cathode material of H2O2 based fuel cell |
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