( ( ( The ( voltage efficiency ) ) ( determined ( by ( the ( reactions overpotential ) ) ) ) ) ( ( is ( ( more directly ) ( related ( to ( ( the thermodynamics ) ( of ( the ( electrochemical reaction ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (JJ voltage) (NN efficiency)) (VP (VBN determined) (PP (IN by) (NP (DT the) (NNS reactions) (NN overpotential))))) (VP (VBZ is) (ADJP (ADVP (RBR more) (RB directly)) (VBN related) (PP (TO to) (NP (NP (DT the) (NNS thermodynamics)) (PP (IN of) (NP (DT the) (JJ electrochemical) (NN reaction))))))) (. .)))
The voltage efficiency determined by the reactions overpotential is more directly related to the thermodynamics of the electrochemical reaction.
(ROOT (S (NP (NP (DT The) (NN difference)) (PP (IN between) (NP (NP (DT the) (JJ theoretical) (JJ half-reaction) (NN reduction) (NN potential)) (CC and) (NP (NP (DT the) (JJ actual) (NN voltage)) (VP (VBN required)))))) (VP (VBZ is) (VP (VBN called) (S (ADJP (JJ overpotential))))) (. .)))