Coenzyme A-regulated Pd nanocatalysts for formic acid-mediated reduction of hexavalent chromium

Nitrogen-doped lignin-derived carbon for catalytic reduction of hexavalent chromium via HCOOH-mediated hydrogenation

“…4d , the highest k value was calculated to be 2.98 min −1 for N@C-g-C 3 N 4 at 50 °C, higher than that of CoA–Pd heterogeneous catalyst ( k = 0.602 min −1 ) reported in literature. 3 …”

“…To date, a common consensus is widely accepted that the chemical decomposition of HCOOH is proceeding on catalyst via dehydrogenation pathway (HCOOH → CO 2 + 2H + + 2e − ), 27 following with the reduction of Cr 6+ to Cr 3+ through H + transfer (Cr 2 O 7 2− + 14H + + 6e − → 2Cr 3+ + 7H 2 O). 3 Simultaneously, the electrons participate in hydrogen production through H + rearrangement (2H + + 2e − → H 2 ). The electrons perhaps participate in both hydrogen production and reduction of Cr 6+ at the same time ( Fig.…”

“…, Pd, Pt, Ag, and Au) catalysts have been extensively applied in the catalytic reduction of Cr 6+ from aqueous environments. 3–5 For instance, Dai and co-workers investigated coenzyme A-regulated Pd nanocatalysts for HCOOH-mediated reduction of Cr 6+ with the highest reduction rate of 2.45 mmol mg −1 min −1 at 50 °C. 3 Celebi and co-workers synthesized Pd nanoparticles decorated on graphene oxide for Cr 6+ reduction in the presence of HCOOH with the mass specific activity of 3.6 mol K 2 Cr 2 O 7 mol Pd −1 min −1 at room temperature.…”

“…3–5 For instance, Dai and co-workers investigated coenzyme A-regulated Pd nanocatalysts for HCOOH-mediated reduction of Cr 6+ with the highest reduction rate of 2.45 mmol mg −1 min −1 at 50 °C. 3 Celebi and co-workers synthesized Pd nanoparticles decorated on graphene oxide for Cr 6+ reduction in the presence of HCOOH with the mass specific activity of 3.6 mol K 2 Cr 2 O 7 mol Pd −1 min −1 at room temperature. 6 Shao and co-workers described AuPd@Pd core–shell nanocrystals for HCOOH-mediated reduction of Cr 6+ with a rate constant of up to 1.44 min −1 .…”

Facile Synthesis of Ultrahigh Molecular Weight Poly(Methyl Methacrylate) by Organic Halides in the Presence of Palladium Nanoparticles

“…Clearly, the Pd NPs were narrowly dispersed and the average diameter was determined to be 3.4 ± 0.68 nm. According to the high-resolution TEM image ( Figure 1 c), the interplanar spacing of synthesized Pd NPs was measured to be 0.231 nm, which corresponds to the Pd crystal (111) plane [ 51 ].…”