Porous CoFe2 O4 /C NRAs supported on nickel foam@NC (denoted as NF@NC-CoFe2 NRAs) are directly fabricated by the carbonization of bimetal-organic framework grown NF@poly-aniline(PANI), and they exhibit high electrocatalytic activity, low overpotential, stability for oxygen evolution reaction in alkaline media.

Postsynthetic ion exchange of [Co2(μ-Cl)2(btta)] (MAF-X27-Cl, H2bbta =1H,5H-benzo(1,2-d:4,5-d′)bistriazole) possessing open metal sites on its pore surface yields a material [Co2(μ-OH)2(bbta)] (MAF-X27-OH) functionalized by both and hydroxide ligands, giving drastically improved electrocatalytic activities for the oxygen evolution reaction (an overpotential 292 mV at 10.0 mA cm–2 in 1.0 M KOH solution). Isotope tracing experiments further confirm that ligands are involved OER process to...

Abstract Industrial application of overall water splitting requires developing readily available, highly efficient, and stable oxygen evolution electrocatalysts that can efficiently drive large current density. This study reports a facile practical method to fabricate non‐noble metal catalyst by directly growing Co‐Fe Prussian blue analogue on 3D porous conductive substrate, which is further phosphorized into bifunctional Fe‐doped CoP (Fe‐CoP) electrocatalyst. The Fe‐CoP/NF (nickel foam)...

Abstract A dinuclear cobalt complex [Co 2 (OH)L 1 ](ClO 4 ) 3 ( , L =N[(CH NHCH m ‐C 6 H )CH NH(CH ] N) displays high selectivity and efficiency for the photocatalytic reduction of CO to in CH CN/H O (v/v=4:1) under a 450 nm LED light irradiation, with intensity 100 mW cm −2 . The reaches as 98 %, turnover numbers (TON) frequencies (TOF) reach 16896 0.47 s −1 respectively, calculated quantum yield 0.04 %. Such activity can be attributed synergistic catalysis effect between two Co II ions...

Ni₂P@FePO<italic>x</italic> has been synthesized <italic>via</italic> extraction and selective phosphorization of nickel in NiFe-LDH, then conversed to a new heterostructure Ni₂P@NiFe hydroxide (P-NiFe) during water splitting. P-NiFe can act as an efficient bifunctional electrocatalyst for overall

This paper highlights the current key progress on HOF-based materials, including their design, structural characteristics, and applications.

Abstract It is common that different crystal facets in metal and oxide nanocrystals display catalytic performances, whereas such phenomena have been rarely documented metal–organic frameworks (MOFs). Herein, we demonstrate for the first time a nickel layer (MOL) exposing rich (100) (Ni‐MOL‐100) shows much higher photocatalytic CO 2 ‐to‐CO activity than one (010) (Ni‐MOL‐010) its bulky counterpart (bulky Ni‐MOF), with up to 2.5 4.6 times more active Ni‐MOL‐010 Ni‐MOF, respectively....

The development of readily available, highly efficient and stable electrocatalysts for the oxygen evolution reaction (OER) is extremely significant to facilitate water splitting generation clean hydrogen energy.

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...

Abstract A photothermal bacterium (PTB) is reported for tumor‐targeted therapy (PTT) by using facultative anaerobic Shewanella oneidensis MR‐1 ( S. MR‐1) to biomineralize palladium nanoparticles (Pd NPs) on its surface without affecting bacterial activity. It found that PTB possesses superior property in near infrared (NIR) regions, as well preferential tumor‐targeting capacity. Zeolitic imidazole frameworks‐90 (ZIF‐90) encapsulating photosensitizer methylene blue (MB) are hybridized the of...

Abstract Aqueous zinc metal batteries have garnered unprecedented attention owing to their high theoretical specific capacity, appropriate redox potential, and remarkable sustainability. Nevertheless, the intractable issues induced by notorious Zn dendrite growth serious interfacial side reactions significantly impede large‐scale utilization. Inducing electrodeposit through parallel arrangement mode is critical realizing dendrite‐free anodes (ZMAs). To realize this purpose, a unique...

Abstract Metal-organic layers with ordered structure and molecular tunability are of great potential as heterogeneous catalysts due to their readily accessible active sites. Herein, we demonstrate a facile template strategy prepare metal-organic uniform thickness three metal coordination (ca. 1.5 nm) graphene oxide both electron mediator. The resulting hybrid catalyst exhibits an excellent performance for CO 2 photoreduction total yield 3133 mmol g –1 MOL (CO selectivity 95%), ca. 34 times...

Abstract By leveraging the ability of Shewanella oneidensis MR‐1 ( S. MR‐1) to anaerobically catabolize lactate through transfer electrons metal minerals for respiration, a lactate‐fueled biohybrid (Bac@MnO 2 ) was constructed by modifying manganese dioxide (MnO nanoflowers on surface. The Bac@MnO uses decorated MnO as electron receptor and tumor metabolite donor make complete bacterial respiration pathway at sites, which results in continuous catabolism intercellular lactate. Additionally,...

Abstract The fulfillment of a high quantum efficiency for photocatalytic CO 2 reduction presents key challenge, which can be overcome by developing strategies dynamic attachment between photosensitizer and catalyst. In this context, we exploit the use coordinate bond to connect pyridine-appended iridium molecular catalysts reduction, is systematically demonstrated 1 H nuclear magnetic resonance titration, theoretical calculations, spectroscopic measurements. mechanistic investigations reveal...

Abstract Monodispersed microspheres play a major role in optical science and engineering, providing ideal building blocks for structural color materials. However, the method toward high solid content (HSC) monodispersed has remained key hurdle. Herein, facile access to harvest based on emulsion polymerization mechanism is demonstrated, where anionic nonionic surfactants are employed achieve electrostatic steric dual‐stabilization balance synergistic manner. poly(styrene‐butyl...

Abstract The development of high‐performance photocatalytic systems for CO 2 reduction is appealing to address energy and environmental issues, while it challenging avoid using toxic metals organic sacrificial reagents. We here immobilize a family cobalt phthalocyanine catalysts on Pb‐free halide perovskite Cs AgBiBr 6 nanosheets with delicate control the anchors catalysts. Among them, molecular hybrid photocatalyst assembled by carboxyl achieves optimal performance an electron consumption...

In the photocatalytic conversion of CO2 to valuable chemicals under aqueous conditions, selectivity and product yield still present most challenging issues. Against this backdrop, negatively charged water-soluble CdS nanocrystals were used assemble with a positively dinuclear cobalt complex through electrostatic interactions. This assembly efficiently catalyzes CO2-to-CO visible light, high 95%, 34.51 μmol CO, large turnover number (TON) 1380 based on catalyst, all which are record values...

Recently, a dinuclear cobalt complex, [(TPA)CoIII(μ-OH)(μ-O2)CoIII(TPA)](ClO4)3 (1; TPA = tris(2-pyridylmethyl)amine), has been reported as homogeneous catalyst for electrochemical and photochemical water oxidation (Angew. Chem. Int. Ed. 2014, 53, 14499). During the reinvestigation of (WOC) 1, several characterizations such EDTA bipyridine titrations, electrochemistry, SEM, EDX, ICP-AES, TEM, XPS, UV–vis spectroscopy have revealed that may happen due to formation CoOx real heterogeneous WOC,...

Abstract The reduction of carbon dioxide (CO 2 ) has been considered as an approach to mitigate global warming and provide renewable carbon‐based fuels. Rational design efficient, selective, inexpensive catalysts with low overpotentials is urgently desired. In this study, four cobalt(II) tripodal complexes are tested for CO in a MeCN/H O (4:1 v / solution. replacement pyridyl groups the ligands less basic quinolinyl greatly reduces required overpotential ‐to‐CO conversion down 200–380 mV....