Coverage-dependent formic acid oxidation reaction kinetics determined by oscillating potentials

Non-Faradaic Promotion of Ethylene Hydrogenation under Oscillating Potentials

“…Kakekhani and Ismail-Beigi claimed based on DFT calculations that dynamic potentials on ferroelectric catalyst surfaces are capable of overcoming the Sabatier limit. , For the electrocatalytic Faradaic adiponitrile synthesis, rapidly switching between the resting and cathodic potential enhanced both activity and selectivity . A thorough microkinetic analysis was provided by Dauenhauer and co-workers, demonstrating the possibility of enhancing catalytic rates by orders of magnitude by the application of time-variant external stimuli corroborated by DFT. − Experimental proof for the efficiency of dynamic catalytic processes has so far been provided solely for dynamic photocatalytic and Faradaic electrocatalytic reactions. − …”

Quantum yield enhancement in the photocatalytic HCOOH decomposition to H2 under periodic illumination

“…These results indicate that a saturated HCOOH coverage is established under both reaction conditions, 49 thereby suggesting that the promotion mechanism under periodic illumination in our system is not consistent with the proposed devotion of a dark period to replenish the surface coverage of adsorbates. 3,[5][6][7][8][9][10][11][12][13][14]30,31 HCOOH decomposition reactions have been extensively studied by means of thermo-, [51][52][53] electro-, [54][55][56] and photocatalysis, which consist of two major reaction paths: (1) a dehydrogenation pathway (HCOOH → CO 2 + H 2 ); and (2) a dehydration pathway (HCOOH → CO + H 2 O). Regardless of the illumination mode, the CO peak was not observed in GC analysis (detection limit: approximately 45 ppm) while H 2 was observed in the gaseous product stream.…”

Electrochemical Oxidation of Formic Acid on PdM (M=Cr, Mn, Fe, Co, Ni, and Ag) Alloy Nanoparticles with Low M Content: A Comparative Study

“…With the advancement of experimental methodologies, a better understanding of the mechanism for formic acid oxidation reaction (FAOR) has emerged. [8,9] The FA oxidation reaction occurs in two separate ways including dehydrogenation (direct) and dehydration (indirect) paths. [10][11][12][13] Direct oxidation of FA is accompanied by a dehydrogenation reaction that produces CO 2 via one or more active intermediates…”