Here is a short paper published in the Journal of Energy Engineering about plasma hydrolysis in 2006. (Authored by 4 disinguished members of 4 distinguished institutions). They say the electrode does not have to be in the water for plasma hydrolysis. It can be near the water. They also say when plasma hydrolysis is carried out together with normal hydrolysis - at the same time, large bubbles are seen coming from the conventional electrode.
I wonder what would happen if plasma hydrolysis was carried out in a meyer cell at the same time?
http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JLEED9000132000003000104000001&idtype=cvips&gifs=yes
Here is a video showing plasm hydrolysis.
http://video.aol.com/video-detail/plasma-electrolysis-of-water/2699431737
Cheers Chris