BiVO-Based Heterojunction Photocathode for High-Performance Photoelectrochemical Hydrogen Peroxide Production.

Photoelectrochemical (PEC) cells provide a promising solution for the synthesis of hydrogen peroxide (HO). Herein, an integrated photocathode of p-type BiVO (p-BVO) array with tetragonal zircon structure coupled with different metal oxide (MO, M = Sn, Ti, Ni, and Zn) heterostructure and NiNC cocatalyst (p-BVO/MO/NiNC) was synthesized for the PEC oxygen reduction reaction (ORR) in production of HO. The p-BVO/SnO/NiNC array achieves the production rate 65.

Engineering Surface Passivation and Hole Transport Layer on Hematite Photoanodes Enabling Robust Photoelectrocatalytic Water Oxidation.

Regulation of charge transport at the molecular level is essential to elucidating the kinetics of junction photoelectrodes across the heterointerface for photoelectrochemical (PEC) water oxidation. Herein, an integrated photoanode as the prototype was constructed by use of a 5,10,15,20-tetrakis(4-carboxyphenyl) porphyrin-cobalt molecule (CoTCPP) and ZnO on hematite (α-FeO) photoanode. CoTCPP molecules serve as a typical hole transport layer (HTL), accelerating the transport of the photogenerated holes to oxygen evolution cocatalysts (OECs).

Metal-Organic Framework Glass Catalysts from Melting Glass-Forming Cobalt-Based Zeolitic Imidazolate Framework for Boosting Photoelectrochemical Water Oxidation.

Sluggish oxygen evolution kinetics and serious charge recombination restrict the development of photoelectrochemical (PEC) water splitting. The advancement of novel metal-organic frameworks (MOFs) catalysts bears practical significance for improving PEC water splitting performance. Herein, a MOF glass catalyst through melting glass-forming cobalt-based zeolitic imidazolate framework (Co-a ZIF-62) was introduced on various metal oxide (MO: Fe O , WO and BiVO ) semiconductor substrates coupled with NiO hole transport layer, constructing the integrated Co-a ZIF-62/NiO/MO photoanodes.

Engineering single-atom active sites anchored covalent organic frameworks for efficient metallaphotoredox CN cross-coupling reactions.

Photoredox catalysis has become an indispensable solution for the synthesis of small organic molecules. However, the precise construction of single-atomic active sites not only determines the catalytic performance, but also avails the understanding of structure-activity relationship. Herein, we develop a facile approach to immobilize single-atom Ni sites anchored porous covalent organic framework (COF) by use of 4,4',4″-(1,3,5-triazine-2,4,6-triyl)trianiline and 2,6-diformylpyridine (Ni SAS/TD-COF).

Engineering Single-Atom Active Sites on Covalent Organic Frameworks for Boosting CO Photoreduction.

Solar carbon dioxide (CO) conversion is an emerging solution to meet the challenges of sustainable energy systems and environmental/climate concerns. However, the construction of isolated active sites not only influences catalytic activity but also limits the understanding of the structure-catalyst relationship of CO reduction. Herein, we develop a universal synthetic protocol to fabricate different single-atom metal sites (e.

Engineering MoO /MXene Hole Transfer Layers for Unexpected Boosting of Photoelectrochemical Water Oxidation.

The development of semiconductor photoanodes is of great practical interest for the realization of photoelectrochemical (PEC) water splitting. Herein, MXene quantum dots (MQD) were grafted on a BiVO substrate, then a MoO layer by combining an ultrathin oxyhydroxide oxygen evolution cocatalyst (OEC) was constructed as an integrated photoanode. The OEC/MoO /MQD/BiVO array not only achieves a current density of 5.