what makes the best electrodes for electrolisys?
494711
Pt is one of the best, but you really just need something more  noble than what you're seperating.  just look at a chart of standard electrode potentials to pick your best
749628
from my chemistry days we would use a 250 ml GLASS beaker and two GLASS testtubes to conduct electrolysis of water but it was only temporary the hydrogen would eventualy escape. now how to keep it pressurized is a little bit harder good luck finding that out.
1060369
Arc welding electrodes are identified using the A.W.S, (American Welding Society) numbering system and are made in sizes from 1/16 to 5/16 . An example would be a welding rod identified as an 1/8" E6011 electrode. \nThe electrode is 1/8" in diameter \n\nThe "E" stands for arc welding electrode. \n\nNext will be either a 4 or 5 digit number stamped on the electrode. The first two numbers of a 4 digit number and the first 3 digits of a 5 digit number indicate the minimum tensile strength (in thousands of pounds per square inch) of the weld that the rod will produce, stress relieved. Examples would be as follows: \n\nE60xx would have a tensile strength of 60,000 psi E110XX would be 110,000 psi \n\nThe next to last digit indicates the position the electrode can be used in. \n\nEXX1X is for use in all positions \nEXX2X is for use in flat and horizontal positions \nEXX3X is for flat welding\nThe last two digits together, indicate the type of coating on the electrode and the welding current the electrode can be used with. Such as DC straight, (DC -) DC reverse (DC+) or A.C.\n\n\nWelding Electrodes are wires or rods of metals or their alloys which are mainly used in welding. The primary purpose of using an electrode in welding is to maintain the arc needed for welding as well as supply the filler material at the point where the welding is done. It actually serves as a conductor for the current required to form the welding arc. The electrode may be consumed during the welding operation or may be just acting as a conductor. The metal electrode is mostly used as a cathode in direct current welding, whereas in alternating current welding the electrode is neither a cathode nor an anode.\n\n\n\nWelding Process \n\n\nA welding arc is created between the two metal pieces to be welded, using an electric power supply which can be either DC or AC. The power supply is so high that the arc created by it can melt the metal parts which form a part of the arc. If the electrode is the filler type, the arc created between the electrode and the base metal melts the electrode. The molten electrode serves at the filler material, enduring additional bondage between the welded parts. Additional filler materials and flux are used along with the electrodes to provide enhanced properties of the weld. Sometimes, even a special environment of a shielding gas is also provided to enhance the welding process.\n\n\n\nTypes of Welding Electrodes \n\n\nFactors which influence the classification of  welding electrodes are\n\n\n        Consumed electrode\n\n        Non-consumed electrode
372993
If you mean the decomposition of a chemical (electrolyte) by the passage of an electric current, you just get two electrodes (pieces of metal) that won't be attacked by the chemical or its electrolysis products and stick them in the electrolyte, and then connect the electrodes to a source of electrical current. You have to experiment with the voltage to be sure it is enough to produce electrolysis at a reasonable rate. If you want to collect any gaseous products of electrolysis, you can let the gas bubble up into an inverted container that is initally filled with the electrolyte. \nElectroplating (ref.) is a related phenomenon. In this case one electrode, connected to a negative voltage, is the metal item you want to receive the plating and the other, connected to a positive voltage, is the metal that provides the plating. The electrolyte is a water solution of a salt of the plating metal.
925200
The scientific supply companies like VWR probably have them.\n\nI searched for "oxygen reduction potential electrode" and got a bunch of hits.  Try that.\n\nYou'll also need a meter to attach it to.  Many better pH meters can handle this kind of probe as well.
993273
Process Electrolysis\n\nYou will need two ordinary glasses, A pan , a DC electrical source and some supports to support the glasses in the pan with the rim below the water level.\n\nYou can find a simple experiment  and details here : http://en.wikipedia.org/wiki/Electrolysis
828272
You will find all the answers here:\n\nhttp://library.thinkquest.org/10429/high/eleconfig/electron.htm
99748
about 3.2VDC using CaCl3 for the electrolytic salt.\nThe voltage needed must be enough to reduce the oxide, but not so much as to break down the CaCl3; the details are described in the link below:
135424
muscle wire, a nickel-titanium alloy, although it actually contracts from the heat caused by the electric current.\n\nmay not be what you had in mind, but you could build a cool robot with it I bet.
522225
Polyethylene is commonly used, sometimes "foamed" to lower the loss factor.\n\nThe best cable employs Teflon.\n\nHigh power transmitting cables have a minimum number of discrete spacers to maintain the geometry.
198278
Any marker made by AGD or Autococker is a good choice for a good mechnical marker. If you want an electro check out some of the smartparts markers.
234381
In order to do this you will most likley have to also apply a voltage to the wire in order to drive the reaction.  Also, the bridge between the 2 beakers must be conductive, so there has to be some sort of electrolyte soaked into the bridge.  i would suggest using a simple copper sulfide solution in the plating side of the cell, and using an iron electrode in the other beaker.  electroplating is sometimes quite complex so you may want to consult a chemist regarding your final setup.
98966
I think you can find everythin u are lookin for and more on this site.. good luck!!!http://www.tannerm.com/electrochem.htm
851280
(m)\n\n1. VERY PURE water is a poor conductor of electricity. However, very small amounts of impurities, especially salts, greatly increase the electrical conductivity of water.\n2. The main carriers of electrical current are dissolved ions. If a \nbattery is connected to a container of water so that the (+) and (-) poles of the battery are immersed in the water, the positive ions will migrate toward the (-) pole and the negative ions will migrate toward the (+) pole (electrical opposites attract). This closes the\n"switch" and electric current flows through the solution.\n3. Different ions can help carry the electric current, some more / some  less, depending upon their electrical charge and their size. More highly charged,  smaller ions are more efficient carriers of the electrical current.\n4. The higher the concentration of ions, the greater is the conductance of the solution.\n5. There is a complication however, the water and / or certain of the ions may undergo a chemical reaction to one or the other, or both of the electrodes. You may not want to introduce this in the beginning but it does happen.\n6. None of the ion electrical current carriers of salts dissolved in water are as mobile as "free" electrons in a metal are. And the differences are very large. For example, if the conductivity of  VERY PURE WATER is 0.000004 conductivity units, the conductivity of a saturated solution of common table salt NaCl is 23 conductivity units, and the conductivity of a typical metal such as copper wire is 60, 000, 000 conductivity units. So while the\nions in a dissolved salt behave something like "free" electrons, they are very slow and sluggish moving
91545
Search Google for \n\npiezoelectric wholesale\n\nBelow is one source.  If you don't find exactly what you want, pick one; call them and ask who carries what you want.
200995
by electrolisis\nH2O------>H2+O2\ni.e by passing electric current
649873
in electroplating, the metal ions would discharge at the cathode, ie negative electrode since they are positively charged. for continuous plating you need to maintain your object-to-be-plated as the negative electrode. A DC source maintains a constant potential and hence it is used. An AC source alternates between a +ve and a -ve value many times in one second. as a result, your electrodes would never have a fixed charge and the metal ions would be attracted alternately by one electrode and then the other around 50 times in a sec---the result being they would go nowhere and your object would never get plated.