<lecture>
   <title>Reactions important to fuel cells technology</title>
   <section>
     <title>Production of
       <cmp myId="H2"/>
     </title>
     <para> Two reactions are very important for the production of
       <cmp myId="H2"/> in fuel cells applications.
     </para>
     <para> Reaction of
       <cmp myId="CO"/> with
       <cmp myId="H2O"/> which yields
       <cmp myId="CO2"/> and
       <cmp myId="H2"/>, called water gas shift.
     </para>
     <para> Steam reforming reaction: a reaction of
       <cmp myId="CxHy"/> with
       <cmp myId="H2O"/>, yielding
       <cmp myId="H2"/> and
       <cmp myId="CO2"/> or
       <cmp myId="CO"/>.
     </para>
   </section>
 </lecture>