Pt (1 1 1) quantum dot engineered Fe-MOF nanosheet arrays with porous core-shell as an electrocatalyst for efficient overall water splitting

Electronic Modulation Caused by Interfacial Ni‐O‐M (M=Ru, Ir, Pd) Bonding for Accelerating Hydrogen Evolution Kinetics

“…The transmission electron microscopy (TEM) images in Figure 1 d and e show that the Ru NPs are uniformly anchored on the surface of Ni-MOF and present a narrow size distribution of 2-4 nm, originating from the confinement effect of nanosheet structure and immobilization of O atom in the architecture of MOFs. [35] The high-resolution TEM (HRTEM) image clearly reveals that the lattice spacing is Angewandte 0.23 nm (Figure 1 f), corresponding to the (100) facet of metallic Ru with hcp structure. [19] Consistent results are also obtained in the corresponding fast Fourier transform (FFT) diagrams.…”

Metal–Organic Frameworks for Electrocatalysis: Beyond Their Derivatives

“…In another study, Ye et al synthesized a high‐performance bifunctional MOF‐HGCC using a generic one‐step hydrothermal treatment for water splitting, in which Pt quantum dots cores were homogeneously integrated with Fe‐MOF nanosheet arrays shell (Pt QDs@Fe‐MOF) with a porous cuboids structure on Ni foam (Figure 12h). [ 64 ] Benefiting from the quantum size and core–shell structure, whereas the Pt QDs@Fe‐MOF electrocatalyst possessed ultralow content of Pt (1.84 μg cm −2 ), the overpotentials of 33 and 191 mV were realized at 10 and 100 mA cm −2 in 1 m KOH solutions, respectively. Furthermore, the Pt‐based MOF‐HGCC electrodes showed exceptional activity and stability with a current density of 10 mA cm −2 at 1.47 V for overall water splitting of at least 100 h. This work proposed a unique porous core–shell structure to judiciously engineer the MOF‐HGCCs for water splitting in industrial practices.…”

Electronic Modulation Caused by Interfacial Ni‐O‐M (M=Ru, Ir, Pd) Bonding for Accelerating Hydrogen Evolution Kinetics

“…The transmission electron microscopy (TEM) images in Figure 1 d and e show that the Ru NPs are uniformly anchored on the surface of Ni-MOF and present a narrow size distribution of 2-4 nm, originating from the confinement effect of nanosheet structure and immobilization of O atom in the architecture of MOFs. [35] The high-resolution TEM (HRTEM) image clearly reveals that the lattice spacing is 0.23 nm (Figure 1 f), corresponding to the (100) facet of metallic Ru with hcp structure. [19] Consistent results are also obtained in the corresponding fast Fourier transform (FFT) diagrams.…”