PdNi/N-doped graphene aerogel with over wide potential activity for formic acid electrooxidation

Co/MoC Nanoparticles Embedded in Carbon Nanoboxes as Robust Trifunctional Electrocatalysts for a Zn–Air Battery and Water Electrocatalysis

“…Figure S2d shows the energy-dispersive spectrometry (EDS) spectrum of ZIF-67, and three compositional signals of Co, C, and N are clearly visible. Other peaks such as O and Cu may originate from the adsorbed trace oxygen and the used copper substrate, respectively …”

Co/CoP Heterojunction on Hierarchically Ordered Porous Carbon as a Highly Efficient Electrocatalyst for Hydrogen and Oxygen Evolution

“…[14][15][16][17] 3D transition metals and metal compounds such as metal chalcogenides, (oxy)hydroxides, phosphides, nitrides, and carbides have been intensively investigated as low-cost substitutes for the precious noble metal-based catalysts. [18][19][20][21][22][23][24] Among them, transition metal phosphide-based composites, especially CoP/carbon hybrids have attracted increasing interest due to the fact that the CoP possesses a hydrogenase-like catalytic process in the HER and may convert into active oxyhydroxides layers in the OER while the coupled carbon increases the electronic conductivity and prevents the corrosion of CoP from the extreme environments. In addition, interface engineering of transition metal phosphides-based heterostructures would allow the intriguing electronic features at the interfacial regions, thus endowing them with optimized adsorption and activation energy for intermediates.…”

Recent advances in electrocatalysts, mechanism, and cell architecture for direct formic acid fuel cells

“…(a) SEM and (b) TEM images of carbon nanobowl structures and (c) schematic showing the packing density and the open window structures which facilitate mass transfer of reactants and gas products (Reprinted with permission (through Copyright Clearance Central) from reference (Jia et al, 2017) Copyright © 2017, Elsevier); (d) Impact of TiO 2 on performance of CNT supports and the uniformity of TiO 2 coating achieved by different solvents (e) EG, (f) DMF, (g) DMSO during synthesis (Reprinted with permission (through Copyright Clearance Central) from reference (W. Shi et al, 2021) Copyright © 2020, Elsevier); (h), (i) FESEM images of Pd supported on NG–CNT hybrid supports, (j) the CV curves of the Pd/NG‐LCNT, Pd/G, Pd/ACNT and Pd/C electrodes in 0.5 M H 2 SO 4 with 0.5 M HCOOH solution at 50 mV s −1 (Reprinted with permission (through Copyright Clearance Central) from reference (Ren et al, 2020) Copyright © 2020, Elsevier); (k) HRTEM image of Pd nanowires supported on 3D reduced graphene oxide support and its corresponding (l) HAADF‐STEM image with elemental mapping (Reprinted with permission (through Copyright Clearance Central) from reference (Qiu et al, 2015) Copyright © 2015, WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim); (m) SEM images of PdNi supported on N‐doped graphene aerogels (Reprinted with permission (through Copyright Clearance Central) from reference (Bao et al, 2021) Copyright © 2020, Elsevier); TEM images of (n) Pd‐gCN‐CB‐30 and (o) Pd‐CB, (p) HRTEM image of Pd‐gCN‐CB‐30, (q) Particle size distribution histograms of Pd‐gCN‐CB‐30 and Pd‐CB. (Reprinted with permission (through Copyright Clearance Central) from reference (Qian et al, 2015) Copyright © 2014, Elsevier); (r) Cyclic voltammograms of Pd supported on different supports in 0.5 M H 2 SO 4 + 0.5 M HCOOH solution with a scan rate of 50 mV s −1 at 25°C (Reprinted with permission (through Copyright Clearance Central) from reference (W. Zhang, Yao, et al, 2016) Copyright © 2016, Elsevier)…”

“…Pd nano‐networks supported on hollow 3D reduced graphene oxide (rGO) nanospheres (Figure 7k–m) synthesized using SiO 2 nanospheres as sacrificial template exhibited enhanced activity and durability compared to those loaded on 2D rGO supports (Qiu et al, 2015). The porous hierarchical 3D architecture of graphene aerogels (Figure 7m) prepared mainly by post‐synthesis freeze‐drying also proved to be a viable support (Bao et al, 2021). Heteroatom doping was further found to almost double the mass activity and improve durability because of the oxidative removal of CO and better anchoring of the Pd catalysts (Y. Yang, Huang, et al, 2020).…”