Abstract Two Pt single‐atom catalysts (SACs) of Pt‐GDY1 and Pt‐GDY2 were prepared on graphdiyne (GDY)supports. The isolated atoms are dispersed GDY through the coordination interactions between alkynyl C in GDY, with formation five‐coordinated 1 ‐Pt‐Cl 4 species four‐coordinated 2 Pt‐GDY2. shows exceptionally high catalytic activity for hydrogen evolution reaction (HER), a mass up to 3.3 26.9 times more active than state‐of‐the‐art commercial Pt/C catalysts, respectively. possesses higher...

Abstract The catalytic activity of metal clusters is closely related with the support; however, knowledge on influence support scarce. We demonstrate that Pt nanoclusters (NCs) anchored porous TiO 2 nanosheets rich oxygen vacancies ( V O ‐rich Pt/TiO ) and deficient ‐deficient ), display significantly different for hydrogen evolution reaction (HER), in which shows a mass 45.28 A mg −1 at −0.1 vs. RHE, 16.7 58.8 times higher than those commercial Pt/C, respectively. DFT calculations situ...

A carbon nitride/TiO2 nanotube array (CN/TNT) heterojunction photocatalyst with visible-light response was prepared by a simple electrochemical method. The characterized X-ray powder diffraction (XRD), field-emission scanning electron microscopy (SEM), photoelectron spectroscopy (XPS) and Fourier transform infrared (FT-IR). photoelectrochemical properties photocatalytic activities of the obtained-samples were systematically tested under visible light irradiation. activity CN/TNTs is higher...

Carbon materials have received an increasing amount of attention due to their low cost, long-term stability, and high electrocatalytic activity in catalyzing the cathodic oxygen reduction reaction (ORR). However, most carbon catalysts exhibited excellent only alkaline media, which greatly hinders practical application polymer electrolyte membrane fuel cells (PEMFCs). In order break restriction conditions, sulfur nitrogen doped nanotubes (SN-CNTs) were designed successfully prepared via...

The solar-driven CO2 reduction is a challenge in the field of "artificial photosynthesis", as most catalysts display low activity and selectivity for water-containing reaction systems result competitive proton reduction. Herein, we report dinuclear heterometallic complex, [CoZn(OH)L1 ](ClO4 )3 (CoZn), which shows extremely high photocatalytic water/acetonitrile solution. It achieves 98 % -to-CO conversion, with TON TOF values 65000 1.8 s-1 , respectively, 4, 19, 45-fold higher than...

The effective separation and transport of photoinduced electron-hole pairs in photoanodes is great significance to photoelectrochemical catalytic performance. Here, a facile two-step strategy developed fabricate double-shelled ZnO/CdS/CdSe porous nanotube from ZnO nanorod arrays (NRAs). Surprisingly, after the process deposition CdS CdSe, are partially dissolved, resulting formation (NTAs). By virtue their unique structure cosensitization effect, NTAs show superior water-splitting...

The development of highly efficient and robust photocatalysts has attracted great attention for solving the global energy crisis environmental problems. Herein, we describe synthesis a p-n heterostructured photocatalyst, consisting ZnO nanorod arrays (NRAs) decorated with BiOI nanoplates (NPs), by facile solvothermal method. product thus obtained shows high photoelectrochemical water splitting performance enhanced photoelectrocatalytic activity pollutant degradation under visible light...

Nanoporous SnO2 containing two types of porous structures has been prepared at the air–water interface by a new photochemical route. This room temperature method is surfactant- and template-free, low-cost, high-yield. Only SnSO4 diluted H2SO4 aqueous solution were used as precursors. Under ultraviolet (UV) light irradiation, Sn2+ absorbs photons to produce metallic tin stannic ions. The reacts immediately with oxygen in air form SnO2. Meanwhile, small amount can also react dissolved one type...

Abstract Developing broadband and strong visible-light-absorbing photosensitizer is highly desired for dramatically improving the utilization of solar energy boosting artificial photosynthesis. Herein, we develop a facile strategy to co-sensitize Ir-complex with Coumarins boron dipyrromethene explore covering ca. 50% visible light region (Ir-4). This type firstly introduced into water splitting system, exhibiting significantly enhanced performance over 21 times higher than that typical...

A series of single-atom Mo-PCN photocatalysts were facilely and large-scale prepared. The two-coordinated Mo center can serve as active site for N₂ chemisorption activation, first achieving solar-driven reduction in pure water under ambient conditions.

Novel carbon nitride polymer sensitized TiO2 nanotube arrays with high photocatalytic activity and photoelectrochemical response under visible light irradiation are prepared by electrodeposition.

Abstract Platinum (Pt)‐based catalysts with high Pt utilization efficiency for efficient H 2 evolution are attracting extensive attention to meet the issues of energy exhaustion and environmental pollution. Herein, a one‐step electrochemical method is demonstrated construct ultrafine heterostructure W/WO 3 on reduced graphene oxide (RGO) by injecting multielectrons into Preyssler anion [NaP 5 W 30 O 110 ] 14− codeposit anodic deliquescent cations. The resulting /RGO shows much higher...

Abstract The universal linear scan voltammogram measurement on the rotating disk electrode (RDE) has been identified as a simple method to investigate oxygen reduction activity of electrocatalysts. steady‐state limiting current density I lim indicates maximum diffusion in reaction (ORR) during RDE measurement, which should be fixed value theory for 4e ORR particular concentration solution and at certain rotate speed. However, experiments, is always variable smaller than theoretical even...

Abstract The catalytic activity of metal clusters is closely related with the support; however, knowledge on influence support scarce. We demonstrate that Pt nanoclusters (NCs) anchored porous TiO 2 nanosheets rich oxygen vacancies ( V O ‐rich Pt/TiO ) and deficient ‐deficient ), display significantly different for hydrogen evolution reaction (HER), in which shows a mass 45.28 A mg −1 at −0.1 vs. RHE, 16.7 58.8 times higher than those commercial Pt/C, respectively. DFT calculations situ...

The reaction kinetics of photocatalytic CO 2 reduction is highly dependent on the transfer rate electrons and protons to molecules adsorbed catalytic centers. Studies uncovering proton effect in catalysts activity are significant but rarely reported. In this paper, we, from molecular level, revealed that closely related availability catalysts. Specifically, four dinuclear Co(II) complexes based Robson-type ligands with different number carboxylic groups (– n COOH; = 0, 2, 4, 6) were designed...