Structural sensitivity of heterogeneous catalysts for sustainable chemical synthesis of gluconic acid from glucose

Size-dependent strong metal-support interaction in TiO2 supported Au nanocatalysts

“…Catalytic application of the size-dependent SMSI. It is known that in many reactions the catalytic performance of supported gold catalysts is size dependent [26][27][28]52,53 . The usually uneven particle size distribution may give rise to different products thus lowering the selectivity.…”

Effect of CeO2 morphology on the catalytic properties of Au/CeO2 for base-free glucose oxidation

“…3c), which are consistent with the signals of the Au 0 and Au + species, respectively. 35 As shown in Table 1, compared with Au/C-CeO 2 and Au/O-CeO 2 , the Au/R-CeO 2 catalyst exhibits the largest percentage of Au + species (19.5%), indicating that R-CeO 2 has the strongest interaction with Au. The strong interaction between Au and R-CeO 2 leads to the electron transfer from Au 0 to Ce 4+ on the (110) plane, forming more Ce 3+ (as well as oxygen vacancies) and Au + in the Au/R-CeO 2 catalyst.…”

Low‐energy Hemiacetal Dehydrogenation Pathway: Co‐production of Gluconic Acid and Green Hydrogen via Glucose Dehydrogenation

“…PtH À and H + generate H 2 which desorbs from Pt. Several studies [8,10,11,24,33] have posited that the mechanism of the oxidation (oxidative dehydrogenation) of D-glucose involves the liquid-phase oxidation of an aldehyde group, namely the terminal aldehyde group of glucose after ring opening. In other words, the traditional method of glucose conversion is not based on hemiacetal chemistry.…”

“…The catalytic oxidation of glucose to gluconic acid and its salts (GNA), which are important chemical substances that exhibit good biodegradability and biocompatibility, is performed using H 2 O 2 or O 2 as an oxidizing agent (Scheme 1a). [8] In comparison, the catalytic dehydrogenation of glucose to GNA and H 2 , two high-value-added products, is performed under milder conditions and achieves better atom economy. [9,10] In the acceptorless dehydrogenation reaction (Scheme 1b) developed by Mata et al [10,11] Iridium (III) complexes were used as catalysts to convert glucose into GNA and H 2 .…”