Switchover of Reaction Paths in the Catalytic Decomposition of Formic Acid on TiO2(110) Surface

Structure of a Model Dye/Titania Interface: Geometry of Benzoate on Rutile-TiO2 (110)(1 × 1)

“…[1][2][3][4] ). To date, most progress has been achieved for the simplest -COOH containing molecule, namely formic acid (HCOOH), on the prototypical rutile TiO 2 (110)(1×1) surface 2,[5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] . On this substrate, it is well known that at room temperature formic acid adsorbs dissociatively, i.e.…”

Adsorption of formic acid on rutile TiO2 (110) revisited: An infrared reflection-absorption spectroscopy and density functional theory study

“…6 Formate adsorption on TiO 2 has been studied extensively. [8][9][10][11][12][13][14][15][16][17][18][19][20][21] Previous studies of adsorption of formic acid (HCOOH) on rutile TiO 2 (110) surfaces have shown that upon adsorption it dissociates into a formate ion (HCOO -) and a proton (H + ), which bind to lowcoordinated Ti and O surface atoms, respectively. 22,23 The adsorption structure of small molecules, such as HCOOH, can be studied favourably by infrared spectroscopy, and in particular infrared reflection-absorption spectroscopy (IRRAS) has been employed to study e.g.…”

New reaction route of HCOOH catalytic decomposition

“…Formate decomposes further to a variety of products, the dominant of which are CO, CO 2 , H 2 O and H 2 . Taking into account these products, the decomposition of formic acid on TiO 2 surfaces has been described in terms of dehydration (to CO and H 2 O) and dehydrogenation (to CO 2 and H 2 ) mechanisms [3][4][5][6][7][8]. Recent studies on single-crystal TiO 2 surfaces revealed that the production of H 2 O and CO could not be directly linked, thus the dehydration reaction can be excluded [9].…”