CN103440806A - Method for manufacturing hydrogen oxygen fuel cell teaching aid capable of changing electrode material to generate strong currents - Google Patents
Method for manufacturing hydrogen oxygen fuel cell teaching aid capable of changing electrode material to generate strong currents Download PDFInfo
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- CN103440806A CN103440806A CN2013103890833A CN201310389083A CN103440806A CN 103440806 A CN103440806 A CN 103440806A CN 2013103890833 A CN2013103890833 A CN 2013103890833A CN 201310389083 A CN201310389083 A CN 201310389083A CN 103440806 A CN103440806 A CN 103440806A
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- fuel cell
- breeches pipe
- pipe
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Abstract
A method for manufacturing a hydrogen oxygen fuel cell teaching aid capable of changing an electrode material to generate strong currents is characterized by including the following steps: (1) experiment supplies are prepared, (2) rubber plugs with graphite electrodes are plugged on two openings of a Y-shaped pipe and the two openings are sealed, (3) a saturated Na2SO4 solution is injected into the Y-shaped pipe, and the opening ends are immersed into a saturated Na2SO4 solution in a beaker after air is exhausted, (4) a direct-current power supply is connected, and electrolysis begins, (5) when the amount of gas generated through electrolysis exceeds the length of each graphite electrode, electrolyzed water automatically stops, and (6) light emitting diodes are connected through wires to form a fuel cell, and lighting of the diodes is observed. According to the method, the expected effect of a fuel cell class demonstration experiment is that large currents are generated, the light emitting diodes are luminous, a music card sounds, small lamp beads are luminous and a small motor rotates, persuasiveness and interestingness are enhanced, and practical value of the method is presented.
Description
Technical field
The present invention relates to first, senior chemistry classroom experiment teaching aid, help the composition of students ' understanding water, the perception hydrogen-oxygen fuel cell, understand the application of the principles of chemistry in the energy and high and new technology field.
Background technology
" brine electrolysis " and " hydrogen-oxygen fuel cell " be just, the important content in senior chemistry course " chemical energy and electric energy transform mutually ".It is green energy resource that teaching material first allows the student understand Hydrogen Energy at Junior, and the Conversion of Energy mode while understanding chemical cell (comprising fuel cell) electric discharge, for the principle of work of further learning fuel cell to senior high school period lays the foundation.
Known a kind of hydrogen-oxygen fuel cell panel formula teaching aid is to fill saturated Na
2sO
4insert Y tube in the small beaker of solution, and mix graphite electrode at the Y tube two ends, by electrolysis by H
2and O
2be stored in respectively the Y tube two ends, then observe the LED lighting situation with wire connection two ends graphite electrode and light emitting diode, energising.After test, find: Y tube can complete the fuel cell experiment, and volume is little, the material-saving that saves time, and can separate gaseous product is ingenious, still, there are problems in the microminiaturization of this device.For example: (1), because the Y tube volume is little, the gas flow that can store is limited, and generation current intensity is little, can only detect with sensitive galvanometer, and the luminescence phenomenon of light emitting diode is not obvious, is not easy to observe.(2) bore due to Y tube is little, is difficult to find the rubber stopper of coupling.By exposing one section pencil-lead after the pencil skiving, as electrode, tested, but difficulty has appearred in the sealing of the mouth of pipe.(3) high to the device sealing requirements to the operation of filling electrolytic solution in Y tube, and complicated operation, difficulty, electrolytic solution also can be stained with to hand.(4) there is no fixedly Y tube of suitable clamping instrument, during experiment, Y tube can only be placed in beaker, install lack of standardization.
Summary of the invention
For above deficiency, the object of the present invention is to provide a kind of method for making that electrode material produces heavy current hydrogen-oxygen fuel cell teaching aid that changes, be material, the size of electrode surface area, generation H from electrode
2and O
2how many equal angles of amount have been launched further test, to obtain larger strength of current.
Technical scheme of the present invention is achieved in the following ways: change the method for making that electrode material produces heavy current hydrogen-oxygen fuel cell teaching aid, comprise the following steps:
1), imitate the threeway structure of " Y tube ", at mouth of pipe footpath 3cm, one section glass arm of U-shaped pipe bottom sintering of length of tube 12cm, two tube pitch 5cm, form improved " breeches pipe ", join again two rubber stopper with double hole, load onto respectively the porous carbon-point and, with the conduit of piston, be assembled into electrolytic cell;
2), select the thick diameter multi-hole carbon-point that diameter is 1.5cm;
3), adopt the method for electrolysis red fuming nitric acid (RFNA) to process the porous carbon-point;
4), process the plank that a length and width, high standard are 55cm * 2cm * 75cm, base is thickeied;
5), according to shape and the size of galvanometer, direct supply, the corresponding position of plank is emptied, install;
6), with emulsion tube, the arm of " breeches pipe " lower end is connected with common funnel, forms the communication type tank room, and " breeches pipe " is fixed on panel, funnel carries with the opening iron ring, and position is higher than " breeches pipe ";
7), music greeting card is sticked on panel with 502 glue;
8), take panel as support, combined communication type " breeches pipe " tank room, direct supply, sensitive galvanometer, music greeting card, containing the series connection hummer and light emitting diode;
9), at one section glass arm of U-shaped pipe bottom sintering, form " breeches pipe ", can be by electrolysate H
2and O
2be stored in U-shaped pipe two ends by drainage, supply raw materials for carrying out the fuel cell experiment;
10), with emulsion tube, the arm of breeches pipe lower end and common funnel are connected into to linker, be convenient to from bell mouth add, discharge electrolytic solution and cleaning device;
While 1. discharging electrolytic solution, only funnel need be taken off from iron ring, mouth down is put into large beaker, opens piston, and the height of adjusting funnel is lower than breeches pipe, makes in breeches pipe electrolytic solution take advantage of a situation and flows down;
2. the operation of cleaning device is equal to dress liquid, discharge opeing process, only need change solution into water;
11), the Conversion of Energy while adopting various ways such as " light, sound, electricity " to present the hydrogen-oxygen fuel cell electric discharge, reach experiment and be rich in interesting effect.
The present invention, adopt the saturated Na of 16V direct supply electrolysis
2sO
4solution, only need electrolysis 3min left and right, and the gas flow of storage can complete the fuel cell experiment.The teacher uses this teaching aid at classroom teaching, can save the process of building experimental provision, saves time, and can allow again the full student of class observe clearly experimental phenomena.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Change the method for making that electrode material produces heavy current hydrogen-oxygen fuel cell teaching aid, comprise the following steps:
1), imitate the threeway structure of " Y tube ", at mouth of pipe footpath 3cm, one section glass arm of U-shaped pipe bottom sintering of length of tube 12cm, two tube pitch 5cm, form improved " breeches pipe ", then join two rubber stopper with double hole, load onto respectively the porous carbon-point and with the conduit of piston, be assembled into electrolytic cell, this improvement can not only keep the advantage of Y tube, can increase the gas storage amount again, improves the strength of current of fuel cell;
2), select the thick diameter multi-hole carbon-point that diameter is 1.5cm, to increase the adsorbance of gas at electrode surface, the strength of current of raising fuel cell;
3), adopt the method for electrolysis red fuming nitric acid (RFNA) to process the porous carbon-point, make the carbon-point surface more coarse, contribute to the absorption of gas, improve the strength of current of fuel cell;
4), process the plank that a length and width, high standard are 55cm * 2cm * 75cm, by the base thickening, while being convenient to education experiment, lay.
5), according to shape and the size of galvanometer, direct supply, the corresponding position of plank is emptied, install;
6), with emulsion tube, the arm of " breeches pipe " lower end is connected with common funnel, forms the communication type tank room, and " breeches pipe " is fixed on panel, the opening iron ring carries (can take off) for funnel, and position is higher than " breeches pipe ".
7), music greeting card is sticked on panel with 502 glue;
8), take panel as support, communication type " breeches pipe " tank room, direct supply, sensitive galvanometer, music greeting card have been combined, hummer and light emitting diode containing series connection, the teacher uses this teaching aid at classroom teaching, can save the process of building experimental provision, save time, can allow again the full student of class observe clearly experimental phenomena.
9) at one section glass arm of U-shaped pipe bottom sintering, form " breeches pipe ", can be by electrolysate H
2and O
2be stored in U-shaped pipe two ends by drainage, supply raw materials for carrying out the fuel cell experiment;
10), with emulsion tube, the arm of breeches pipe lower end and common funnel are connected into to linker, be convenient to from bell mouth add, discharge electrolytic solution and cleaning device;
While 1. discharging electrolytic solution, only funnel need be taken off from iron ring, mouth down is put into large beaker, opens piston, and the height of adjusting funnel is lower than breeches pipe, makes in breeches pipe electrolytic solution take advantage of a situation and flows down;
2. the operation of cleaning device is equal to dress liquid, discharge opeing process, only need change solution into water.
11), the Conversion of Energy while adopting various ways such as " light, sound, electricity " to present the hydrogen-oxygen fuel cell electric discharge, reach experiment and be rich in interesting effect.
Claims (2)
1. change the method for making that electrode material produces heavy current hydrogen-oxygen fuel cell teaching aid, comprise the following steps: it is characterized in that:
1), imitate the threeway structure of " Y tube ", at mouth of pipe footpath 3cm, one section glass arm of U-shaped pipe bottom sintering of length of tube 12cm, two tube pitch 5cm, form improved " breeches pipe ", join again two rubber stopper with double hole, load onto respectively the porous carbon-point and, with the conduit of piston, be assembled into electrolytic cell;
2), select the thick diameter multi-hole carbon-point that diameter is 1.5cm;
3), adopt the method for electrolysis red fuming nitric acid (RFNA) to process the porous carbon-point;
4), process the plank that a length and width, high standard are 55cm * 2cmm * 75cm, base is thickeied;
5), according to shape and the size of galvanometer, direct supply, the corresponding position of plank is emptied, install;
6), with emulsion tube, the arm of " breeches pipe " lower end is connected with common funnel, forms the communication type tank room, and " breeches pipe " is fixed on panel, funnel carries with the opening iron ring, and position is higher than " breeches pipe ";
7), music greeting card is sticked on panel with 502 glue;
8), take panel as support, combined communication type " breeches pipe " tank room, direct supply, sensitive galvanometer, music greeting card, containing the series connection hummer and light emitting diode;
9), at one section glass arm of U-shaped pipe bottom sintering, form " breeches pipe ", can be by electrolysate H
2and O
2be stored in U-shaped pipe two ends by drainage, supply raw materials for carrying out the fuel cell experiment;
10), with emulsion tube, the arm of breeches pipe lower end and common funnel are connected into to linker, be convenient to from bell mouth add, discharge electrolytic solution and cleaning device;
11), the Conversion of Energy while adopting various ways such as " light, sound, electricity " to present the hydrogen-oxygen fuel cell electric discharge, reach experiment and be rich in interesting effect.
2. change electrode material according to claim 1 produces the method for making of heavy current hydrogen-oxygen fuel cell teaching aid, it is characterized in that: described step 10): while 1. discharging electrolytic solution, only funnel need be taken off from iron ring, mouth down is put into large beaker, open piston, and the height of adjusting funnel is lower than breeches pipe, makes in breeches pipe electrolytic solution take advantage of a situation and flow down; 2. the operation of cleaning device is equal to dress liquid, discharge opeing process, only need change solution into water.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103890833A CN103440806A (en) | 2013-09-02 | 2013-09-02 | Method for manufacturing hydrogen oxygen fuel cell teaching aid capable of changing electrode material to generate strong currents |
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|---|---|---|---|
| CN2013103890833A CN103440806A (en) | 2013-09-02 | 2013-09-02 | Method for manufacturing hydrogen oxygen fuel cell teaching aid capable of changing electrode material to generate strong currents |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2745147Y (en) * | 2004-06-15 | 2005-12-07 | 李进 | Flicker LED type hydrogen-oxygen fuel cell demonstration instrument |
| CN202306924U (en) * | 2011-10-27 | 2012-07-04 | 马可龙 | Novel solution electrolyzing device |
| CN203085054U (en) * | 2012-12-28 | 2013-07-24 | 普教装备产业股份有限公司 | Electrolytic experiment device |
-
2013
- 2013-09-02 CN CN2013103890833A patent/CN103440806A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2745147Y (en) * | 2004-06-15 | 2005-12-07 | 李进 | Flicker LED type hydrogen-oxygen fuel cell demonstration instrument |
| CN202306924U (en) * | 2011-10-27 | 2012-07-04 | 马可龙 | Novel solution electrolyzing device |
| CN203085054U (en) * | 2012-12-28 | 2013-07-24 | 普教装备产业股份有限公司 | Electrolytic experiment device |
Non-Patent Citations (2)
| Title |
|---|
| 孔玲芸: "自制"氢氧燃料电池展板式教具"在化学实验教学中的应用", 《化学教学》, no. 5, 10 May 2013 (2013-05-10) * |
| 赵会科: "对氢氧燃料电池实验的研究与改进", 《化学教育》, no. 6, 30 June 2009 (2009-06-30) * |
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Application publication date: 20131211 |