Stable metal–organic frameworks for PEC water splitting

Metal–Organic Frameworks Can Photocatalytically Split Water—Why Not?

“…The readers are also directed to critical reviews that discuss the ability and properties of MOFs for this application. [14,33,34] In fact, there are several MOFs that can photocatalytically split water into hydrogen and oxygen, which are Al-ATA-Ni (ATA = amino terephthalic acid), [35] MIL-125-NH 2 -CoPi-Pt, [19] Pt-RuO x -MIL-125-NH 2 , [36] UiO-66(Zr/Ce/Ti), [37] IEF-13, [38] and MIL-125-NH 2 -10m. [39] We can clearly see that all MOF photocatalysts used for this application are composed of high valent metal [Ti(IV), Zr(IV)] and innerness Al-oxide clusters.…”

XPS as a probe for the bonding nature in metal acetates

“…From the line-shape profiles, it followed that the spectra can be fitted with three peaks. 45,46 The first two comprise the atomic-like terms OKL 23 L 23 1 D and OKL 23 L 23 1 S, which arise from highly localized final two-hole states where the L-S coupling is reflected. 47,48 These atomic-like features are the result of strong polarization of the electrons in the valence orbitals toward the formed 1s core-hole, which indicates that the valence orbitals after core-hole relaxation have higher O 2p character than in the ground state; such a change in the local density of states around the O atom causes its electron configuration to approach that of 2p 6 , leading to Auger transitions with marked atomic character, albeit broadened because the final valence orbitals still present a finite degree of delocalization within the molecule.…”

“…Metal carboxylates are fundamental components in many advanced functional materials with interesting and novel properties that find applications in many fields, including hydrogen production, watersplitting catalysis, energy-storage devices, and molecular magnetism. [1][2][3][4][5][6][7] Besides, metal carboxylates are encountered in nanoparticle applications for wastewater treatment 8,9 and in surface functionalization to change properties like chemisorption, hydrophobicity, or charge transfer. [10][11][12][13][14] Also, this family of coordination compounds plays important roles in several biochemical functions of living organisms, which makes it a target for intense study in biomimetic systems.…”

Amorphous CoB layer cooperates with piezoelectric polarization to boost carrier separation of Bi2WO6 for efficient piezo-PEC performance

“…Due to the intensication of the global energy crisis, as well as the pollution caused by the continuous reduction of global stone fuel reserves, in today's society, the development of sustainable, green, new energy technology has become the focus of people's concern. [1][2][3] Hydrogen energy is regarded as one of the most dynamic energy sources in the future because of its pollution-free and high energy content per unit mass. [4][5][6][7] Photocatalysis, which converts solar energy into chemical energy by splitting water, is a promising way to improve the energy problem among many hydrogen production technologies.…”