Electrochemical Promotion and Metal–Support Interactions

Electrochemical promotion of RuO2 catalysts for the combustion of toluene and ethylene

“…Recent work has shown that electrochemical promotion results from electrochemically controlled migration of promoting ionic species (O d) , Na d+ ) from the electrolyte support to the metal/gas catalytic interface where an ''effective'' double layer is formed (figure 1, bottom) [9,13,14] and that classical promotion, electrochemical promotion and metal-support interactions with O 2) conducting and mixed ionic-electronic conducting supports are functionally identical and only operationally different [14,16]. Electrochemical promotion allows for in situ control of catalyst activity and selectivity by controlling in situ the promoter coverage via potential application [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17].…”

“…Electrochemical promotion allows for in situ control of catalyst activity and selectivity by controlling in situ the promoter coverage via potential application [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17].…”

Primary oxide spillover DL pseudo-capacitance charging and discharging in the light of the first principle theory

“…9), as the prevailing part of inner or Galvani potential (∆φ). Namely, Vayenas et al [24,25] have proved on plentiful systems in solid state electrolyte [26], aqueous media [27-29,] and PEM Nafion 112 [30] the basic NEMCA or EPOC promotion relation in heterogeneous catalysis, Φ e U WR    (14) that could also be considered as fundamental both in electrode kinetics [31][32][33] and spillover phenomena [34]. Meanwhile, the latter (Eq.…”

Tailor-structured skeletal Pt catalysts employed in a monolithic electropromoted reactor

“…The electrochemical promotion of catalysis (non-Faradaic electrochemical modification of catalytic activity, NEMCA effect) refers to the very pronounced and reversible changes in the catalytic properties of conductive catalysts deposited on solid electrolytes caused by application of small electrical currents or potentials [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. There exist shorter [4,6,14,15] as well as more detailed recent reviews [3,5] describing the phenomenology, limits and molecular origin of the phenomenon.…”