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	<title>Comments on: Breakthrough in water based energy storage</title>
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	<link>http://hackaday.com/2008/07/31/breakthrough-in-water-based-energy-storage/</link>
	<description>Fresh hacks every day</description>
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		<title>By: BS</title>
		<link>http://hackaday.com/2008/07/31/breakthrough-in-water-based-energy-storage/comment-page-2/#comment-39907</link>
		<dc:creator>BS</dc:creator>
		<pubDate>Sat, 06 Sep 2008 03:15:33 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2008/07/31/breakthrough-in-water-based-energy-storage/#comment-39907</guid>
		<description>Utter and total bullsh*t, bullsh*t, bullsh*t!!!

This has been areound for probably 50+ years! Squelched

many times by big energy/oil and the government! Google

Joe Brown Cell, and ignore the hype, I have built

dozens of these and they truly work. This is a semi-reverse

application of the priciple, but nearly the same

exact thing.</description>
		<content:encoded><![CDATA[<p>Utter and total bullsh*t, bullsh*t, bullsh*t!!!</p>
<p>This has been areound for probably 50+ years! Squelched</p>
<p>many times by big energy/oil and the government! Google</p>
<p>Joe Brown Cell, and ignore the hype, I have built</p>
<p>dozens of these and they truly work. This is a semi-reverse</p>
<p>application of the priciple, but nearly the same</p>
<p>exact thing.</p>
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		<title>By: SciVet</title>
		<link>http://hackaday.com/2008/07/31/breakthrough-in-water-based-energy-storage/comment-page-2/#comment-39906</link>
		<dc:creator>SciVet</dc:creator>
		<pubDate>Mon, 04 Aug 2008 21:20:45 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2008/07/31/breakthrough-in-water-based-energy-storage/#comment-39906</guid>
		<description>Mr Kocera: Platinum is a well known catalyst in the Chem industry and its&#039; price per ounce, currently over $1500 usd, has been spiking recently because of more interest in it.  A few months ago it was $2000 usd per ounce.  It&#039;s not so easy for the average consumer to use Pt or Co, but what you&#039;re lacking for a true breakthrough is the bio-research in what exactly are the plants and trees &quot;biochemically doing&quot; to store energy.&lt;br&gt;&lt;br&gt;The energy that plants store may not be &quot;electrical current&quot; like we use, so then there are enzymes and/or other biomechanisms at work for storing energy.  Biochemistry may not be your field, but you could look into bio-research for what you want to accomplish.&lt;br&gt;&lt;br&gt;A true breakthrough would be MIT discovering the exact biomechanisms involved in photosynthesis with the biochems listed, such as proteins and enzymes, and then this breakthrough will not require the use of expensive catalysts.</description>
		<content:encoded><![CDATA[<p>Mr Kocera: Platinum is a well known catalyst in the Chem industry and its&#8217; price per ounce, currently over $1500 usd, has been spiking recently because of more interest in it.  A few months ago it was $2000 usd per ounce.  It&#8217;s not so easy for the average consumer to use Pt or Co, but what you&#8217;re lacking for a true breakthrough is the bio-research in what exactly are the plants and trees &#8220;biochemically doing&#8221; to store energy.</p>
<p>The energy that plants store may not be &#8220;electrical current&#8221; like we use, so then there are enzymes and/or other biomechanisms at work for storing energy.  Biochemistry may not be your field, but you could look into bio-research for what you want to accomplish.</p>
<p>A true breakthrough would be MIT discovering the exact biomechanisms involved in photosynthesis with the biochems listed, such as proteins and enzymes, and then this breakthrough will not require the use of expensive catalysts.</p>
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		<title>By: Ryan</title>
		<link>http://hackaday.com/2008/07/31/breakthrough-in-water-based-energy-storage/comment-page-2/#comment-39905</link>
		<dc:creator>Ryan</dc:creator>
		<pubDate>Sun, 03 Aug 2008 01:42:08 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2008/07/31/breakthrough-in-water-based-energy-storage/#comment-39905</guid>
		<description>@37, water molecules are always split two at a time: 2H2O --&gt; 2H2 + O2. Oxygen never exists as just &quot;O&quot;. They call it HHO because that&#039;s just the ratio: 2 hydrogen to 1 oxygen</description>
		<content:encoded><![CDATA[<p>@37, water molecules are always split two at a time: 2H2O &#8211;> 2H2 + O2. Oxygen never exists as just &#8220;O&#8221;. They call it HHO because that&#8217;s just the ratio: 2 hydrogen to 1 oxygen</p>
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		<title>By: some_person</title>
		<link>http://hackaday.com/2008/07/31/breakthrough-in-water-based-energy-storage/comment-page-2/#comment-39904</link>
		<dc:creator>some_person</dc:creator>
		<pubDate>Sun, 03 Aug 2008 00:34:45 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2008/07/31/breakthrough-in-water-based-energy-storage/#comment-39904</guid>
		<description>1:24) Unfortunately, splitting H2O does not give us H2 and O2; it only gives us H2 and O (or H, H, and O).</description>
		<content:encoded><![CDATA[<p>1:24) Unfortunately, splitting H2O does not give us H2 and O2; it only gives us H2 and O (or H, H, and O).</p>
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		<title>By: password</title>
		<link>http://hackaday.com/2008/07/31/breakthrough-in-water-based-energy-storage/comment-page-2/#comment-39903</link>
		<dc:creator>password</dc:creator>
		<pubDate>Sat, 02 Aug 2008 16:31:41 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2008/07/31/breakthrough-in-water-based-energy-storage/#comment-39903</guid>
		<description>@20&lt;br&gt;&lt;br&gt;I agree with you 100%. i hate it when people say you can burn water</description>
		<content:encoded><![CDATA[<p>@20</p>
<p>I agree with you 100%. i hate it when people say you can burn water</p>
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		<title>By: NXK</title>
		<link>http://hackaday.com/2008/07/31/breakthrough-in-water-based-energy-storage/comment-page-2/#comment-39902</link>
		<dc:creator>NXK</dc:creator>
		<pubDate>Sat, 02 Aug 2008 13:39:00 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2008/07/31/breakthrough-in-water-based-energy-storage/#comment-39902</guid>
		<description>@28 xeracy: If memory serves, Equinox&#039; production was funded Exxon, so keep that in mind when you watch it. The oil companies have done very well financially whilst spinning their wheels and dragging out the obvious outcome of our global reliance on fossil fuels.</description>
		<content:encoded><![CDATA[<p>@28 xeracy: If memory serves, Equinox&#8217; production was funded Exxon, so keep that in mind when you watch it. The oil companies have done very well financially whilst spinning their wheels and dragging out the obvious outcome of our global reliance on fossil fuels.</p>
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		<title>By: DarkFader</title>
		<link>http://hackaday.com/2008/07/31/breakthrough-in-water-based-energy-storage/comment-page-2/#comment-39901</link>
		<dc:creator>DarkFader</dc:creator>
		<pubDate>Sat, 02 Aug 2008 10:24:09 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2008/07/31/breakthrough-in-water-based-energy-storage/#comment-39901</guid>
		<description>I think that picture of &quot;the great wave&quot; is appropriate to this.</description>
		<content:encoded><![CDATA[<p>I think that picture of &#8220;the great wave&#8221; is appropriate to this.</p>
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		<title>By: threepointone</title>
		<link>http://hackaday.com/2008/07/31/breakthrough-in-water-based-energy-storage/comment-page-2/#comment-39900</link>
		<dc:creator>threepointone</dc:creator>
		<pubDate>Sat, 02 Aug 2008 08:22:32 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2008/07/31/breakthrough-in-water-based-energy-storage/#comment-39900</guid>
		<description>Personally I believe that we shouldn&#039;t be wasting our time trying so hard to create a completely new energy delivery system when we ought to be more concerned with the initial production (nitpicky physicists: I mean conversion) of energy to something we already use. We don&#039;t have that much time left before we run out of petroleum, and we should spend our efforts on getting an interim solution to the bigger problem--production, not storage or transport.&lt;br&gt;&lt;br&gt;Bottom line: I say we start building those nuke plants and spend more research into getting all the energy out of that nuclear waste (i.e. reduce the half-life) At the very least that will cut off a huge amount of our pollution, and at the very least we could pull off something with electric cars before you figure out the hydrogen fuel cell nonsense (or find something even better! maybe something that doesn&#039;t just so conveniently have to be a gas at STP!) in the meantime&lt;br&gt;&lt;br&gt;Anyway, seriously, I wouldn&#039;t believe any of the crap coming out of the peswiki.com site. There isn&#039;t a single physicist in his right mind who would believe any of that crap. Seriously, lots of those guys are trying to read up on quantum physics without even getting their college level physics straight, and come up with these weird meaningless ideas out of their heads. I wish I had the time to refute all the nonsense they say. . .of course, I agree with their goals (to reduce our dependence on petroleum, reduce CO2, etc) but they always love making it sound SO EASY when energy is a hard problem and needs more *cough* educated people to help solve it. And then there&#039;s the issue of how the education in this country is totally going downhill, but I digress. . .&lt;br&gt;&lt;br&gt;Alright, onto the main comment I was going to make: &quot;a year&#039;s worth of energy consumed by us hits the earth every hour&quot; Sounds good at first, but if you think about it, it&#039;s pretty saddening. That means we would need to cover .01% of the earth with 100% efficient solar panels just to meet our CURRENT power needs, not including the however many percent is ALREADY covered by photosynthetic plants. That&#039;s about the size of a small state. Then imagine our power consumption increase 10x, which is pretty reasonable. . . there simply isn&#039;t enough energy on earth to sustain us. We are one very very sad race. . .so perhaps the L factor in Drake&#039;s Equation is really why we haven&#039;t found intelligent life yet--they&#039;re all dead by their own overconsumption.</description>
		<content:encoded><![CDATA[<p>Personally I believe that we shouldn&#8217;t be wasting our time trying so hard to create a completely new energy delivery system when we ought to be more concerned with the initial production (nitpicky physicists: I mean conversion) of energy to something we already use. We don&#8217;t have that much time left before we run out of petroleum, and we should spend our efforts on getting an interim solution to the bigger problem&#8211;production, not storage or transport.</p>
<p>Bottom line: I say we start building those nuke plants and spend more research into getting all the energy out of that nuclear waste (i.e. reduce the half-life) At the very least that will cut off a huge amount of our pollution, and at the very least we could pull off something with electric cars before you figure out the hydrogen fuel cell nonsense (or find something even better! maybe something that doesn&#8217;t just so conveniently have to be a gas at STP!) in the meantime</p>
<p>Anyway, seriously, I wouldn&#8217;t believe any of the crap coming out of the peswiki.com site. There isn&#8217;t a single physicist in his right mind who would believe any of that crap. Seriously, lots of those guys are trying to read up on quantum physics without even getting their college level physics straight, and come up with these weird meaningless ideas out of their heads. I wish I had the time to refute all the nonsense they say. . .of course, I agree with their goals (to reduce our dependence on petroleum, reduce CO2, etc) but they always love making it sound SO EASY when energy is a hard problem and needs more *cough* educated people to help solve it. And then there&#8217;s the issue of how the education in this country is totally going downhill, but I digress. . .</p>
<p>Alright, onto the main comment I was going to make: &#8220;a year&#8217;s worth of energy consumed by us hits the earth every hour&#8221; Sounds good at first, but if you think about it, it&#8217;s pretty saddening. That means we would need to cover .01% of the earth with 100% efficient solar panels just to meet our CURRENT power needs, not including the however many percent is ALREADY covered by photosynthetic plants. That&#8217;s about the size of a small state. Then imagine our power consumption increase 10x, which is pretty reasonable. . . there simply isn&#8217;t enough energy on earth to sustain us. We are one very very sad race. . .so perhaps the L factor in Drake&#8217;s Equation is really why we haven&#8217;t found intelligent life yet&#8211;they&#8217;re all dead by their own overconsumption.</p>
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		<title>By: shbazjinkens</title>
		<link>http://hackaday.com/2008/07/31/breakthrough-in-water-based-energy-storage/comment-page-2/#comment-39899</link>
		<dc:creator>shbazjinkens</dc:creator>
		<pubDate>Sat, 02 Aug 2008 04:20:47 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2008/07/31/breakthrough-in-water-based-energy-storage/#comment-39899</guid>
		<description>Eh, guess I should add, I did rtfa, but the previous post is &quot;why people still don&#039;t think hydrogen can safely be stored.&quot;  these are the common arguments that I have used against hydrogen: efficiency and storage.&lt;br&gt;&lt;br&gt;these pellet type storage processes negate the storage problem.</description>
		<content:encoded><![CDATA[<p>Eh, guess I should add, I did rtfa, but the previous post is &#8220;why people still don&#8217;t think hydrogen can safely be stored.&#8221;  these are the common arguments that I have used against hydrogen: efficiency and storage.</p>
<p>these pellet type storage processes negate the storage problem.</p>
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		<title>By: shbazjinkens</title>
		<link>http://hackaday.com/2008/07/31/breakthrough-in-water-based-energy-storage/comment-page-2/#comment-39898</link>
		<dc:creator>shbazjinkens</dc:creator>
		<pubDate>Sat, 02 Aug 2008 04:15:51 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2008/07/31/breakthrough-in-water-based-energy-storage/#comment-39898</guid>
		<description>@30:&lt;br&gt;The difference is that gasoline can be stored at atmospheric pressure.  Not only is hydrogen volatile, but it is much more likely to leak because it is pressurized.  Do you think you can put it in a bladder such that, like gasoline, it won&#039;t necessarily leak out even if the tank is crushed?  Doubt it.  Lots of gasoline makes a slight explosion and then a burn.  Lots of hydrogen makes a BIG explosion.  Can&#039;t say that either is a desirable situation.&lt;br&gt;&lt;br&gt;I&#039;ll bet the cost/benefit still doesn&#039;t beat charging batteries instead of converting to hydrogen/compressing/re-converting to electricity.  In autos, it&#039;s crap.  For homes, probably a great idea.</description>
		<content:encoded><![CDATA[<p>@30:<br />The difference is that gasoline can be stored at atmospheric pressure.  Not only is hydrogen volatile, but it is much more likely to leak because it is pressurized.  Do you think you can put it in a bladder such that, like gasoline, it won&#8217;t necessarily leak out even if the tank is crushed?  Doubt it.  Lots of gasoline makes a slight explosion and then a burn.  Lots of hydrogen makes a BIG explosion.  Can&#8217;t say that either is a desirable situation.</p>
<p>I&#8217;ll bet the cost/benefit still doesn&#8217;t beat charging batteries instead of converting to hydrogen/compressing/re-converting to electricity.  In autos, it&#8217;s crap.  For homes, probably a great idea.</p>
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		<title>By: Dave Eaton</title>
		<link>http://hackaday.com/2008/07/31/breakthrough-in-water-based-energy-storage/comment-page-2/#comment-39897</link>
		<dc:creator>Dave Eaton</dc:creator>
		<pubDate>Sat, 02 Aug 2008 03:45:55 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2008/07/31/breakthrough-in-water-based-energy-storage/#comment-39897</guid>
		<description>The biggest deals here are a) the low overpotential and b)the ability to work at neutral pH.&lt;br&gt;&lt;br&gt;Overpotential is a measure of the extra energy over the theoretical minimum needed to do an electrochemical reaction. In this case, lowering the overpotential means you don&#039;t waste energy you can use to split water. This is where the efficiency gain comes from.&lt;br&gt;&lt;br&gt;Most catalysts for oxygen reduction are expensive, or work at high pH, or both. High pH=highly alkaline, which makes the solution dangerous and corrosive. Platinum is expensive. Cobalt phosphate is dirt cheap by comparison. &lt;br&gt;&lt;br&gt;As Nocera says, it opens a door. It might be economical, and it might not. It has a much better chance, because it is at neutral pH and low overpotential, than existing electrolysis.</description>
		<content:encoded><![CDATA[<p>The biggest deals here are a) the low overpotential and b)the ability to work at neutral pH.</p>
<p>Overpotential is a measure of the extra energy over the theoretical minimum needed to do an electrochemical reaction. In this case, lowering the overpotential means you don&#8217;t waste energy you can use to split water. This is where the efficiency gain comes from.</p>
<p>Most catalysts for oxygen reduction are expensive, or work at high pH, or both. High pH=highly alkaline, which makes the solution dangerous and corrosive. Platinum is expensive. Cobalt phosphate is dirt cheap by comparison. </p>
<p>As Nocera says, it opens a door. It might be economical, and it might not. It has a much better chance, because it is at neutral pH and low overpotential, than existing electrolysis.</p>
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		<title>By: Thebes</title>
		<link>http://hackaday.com/2008/07/31/breakthrough-in-water-based-energy-storage/comment-page-2/#comment-39896</link>
		<dc:creator>Thebes</dc:creator>
		<pubDate>Sat, 02 Aug 2008 00:57:51 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2008/07/31/breakthrough-in-water-based-energy-storage/#comment-39896</guid>
		<description>Well, regardless of what this posts author left out: I do need to take issue with the idea that batteries are not a practical means to store photovoltaic electricity in off-grid homes- I&#039;ve been doing it for years and know a few people who&#039;ve done it since the early 70s. IMHO deep-cycle lead acid batteries (if steps are taken against sulfated plates) will prove massively preferable to dealing with explosive hydrogen. Ever been in an off-grid home??? Most have electrical setups that would make a code inspector wet himself! Now imagine that when dealing with an explosive gas...</description>
		<content:encoded><![CDATA[<p>Well, regardless of what this posts author left out: I do need to take issue with the idea that batteries are not a practical means to store photovoltaic electricity in off-grid homes- I&#8217;ve been doing it for years and know a few people who&#8217;ve done it since the early 70s. IMHO deep-cycle lead acid batteries (if steps are taken against sulfated plates) will prove massively preferable to dealing with explosive hydrogen. Ever been in an off-grid home??? Most have electrical setups that would make a code inspector wet himself! Now imagine that when dealing with an explosive gas&#8230;</p>
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		<title>By: sitwon</title>
		<link>http://hackaday.com/2008/07/31/breakthrough-in-water-based-energy-storage/comment-page-2/#comment-39895</link>
		<dc:creator>sitwon</dc:creator>
		<pubDate>Sat, 02 Aug 2008 00:26:55 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2008/07/31/breakthrough-in-water-based-energy-storage/#comment-39895</guid>
		<description>While it&#039;s true that H2 and O2 are potentially dangerous materials, what makes people think that they can&#039;t be safely stored? Gasoline is also a flammable chemical and has been used to burn house and people so why is it safer? &lt;br&gt;&lt;br&gt;There are a lot of flammable and dangerous chemicals and devices already in your home, but for some reason H2 and O2 are extra scary to people. I just don&#039;t get it. &lt;br&gt;&lt;br&gt;I supposed when people talk about fuel-cell cars there is some viable reasoning for concern because if you collide two vehicles which are transporting a substantial quantity of any volatile substance you could have trouble. That said, how often do you see people crashing their houses into each other?</description>
		<content:encoded><![CDATA[<p>While it&#8217;s true that H2 and O2 are potentially dangerous materials, what makes people think that they can&#8217;t be safely stored? Gasoline is also a flammable chemical and has been used to burn house and people so why is it safer? </p>
<p>There are a lot of flammable and dangerous chemicals and devices already in your home, but for some reason H2 and O2 are extra scary to people. I just don&#8217;t get it. </p>
<p>I supposed when people talk about fuel-cell cars there is some viable reasoning for concern because if you collide two vehicles which are transporting a substantial quantity of any volatile substance you could have trouble. That said, how often do you see people crashing their houses into each other?</p>
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		<title>By: strider_mt2k</title>
		<link>http://hackaday.com/2008/07/31/breakthrough-in-water-based-energy-storage/comment-page-1/#comment-39894</link>
		<dc:creator>strider_mt2k</dc:creator>
		<pubDate>Fri, 01 Aug 2008 19:34:53 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2008/07/31/breakthrough-in-water-based-energy-storage/#comment-39894</guid>
		<description>If I don&#039;t find a bathroom really soon there&#039;s going to be a breakthrough in bladder-based water storage!&lt;br&gt;&lt;br&gt;out of my way!!!!</description>
		<content:encoded><![CDATA[<p>If I don&#8217;t find a bathroom really soon there&#8217;s going to be a breakthrough in bladder-based water storage!</p>
<p>out of my way!!!!</p>
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		<title>By: backwash</title>
		<link>http://hackaday.com/2008/07/31/breakthrough-in-water-based-energy-storage/comment-page-1/#comment-39893</link>
		<dc:creator>backwash</dc:creator>
		<pubDate>Fri, 01 Aug 2008 18:10:57 +0000</pubDate>
		<guid isPermaLink="false">http://hackaday.iheartcashews.com:8181/2008/07/31/breakthrough-in-water-based-energy-storage/#comment-39893</guid>
		<description>More details here  &lt;br&gt;&lt;a href=&quot;http://blog.wired.com/wiredscience/2008/07/reverse-fuel-ce.html&quot; rel=&quot;nofollow&quot;&gt;http://blog.wired.com/wiredscience/2008/07/reverse-fuel-ce.html&lt;/a&gt;</description>
		<content:encoded><![CDATA[<p>More details here  <br /><a href="http://blog.wired.com/wiredscience/2008/07/reverse-fuel-ce.html" rel="nofollow">http://blog.wired.com/wiredscience/2008/07/reverse-fuel-ce.html</a></p>
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