A controllable vacuum‐diffusion method for gradual phosphidation of carbon coated metallic Co nanoparticles into Co/CoP Janus is reported. nanoparticles, as typical Mott–Schottky electrocatalysts, exhibit excellent hydrogen evolution reaction and oxygen performance in various electrolytes across wide pH range along with high durability. The catalyst can work bifunctional electrode materials overall water splitting achieve a current density 10 mA cm −2 neutral electrolyte at only 1.51 V.

Artificial photocatalytic energy conversion represents a highly intriguing strategy for solving the crisis and environmental problems by directly harvesting solar energy. The development of efficient photocatalysts is central task pushing real-world application reactions. Due to maximum atomic utilization efficiency distinct advantages outstanding catalytic activity, single-atom catalysts (SACs) have emerged as promising candidates photocatalysts. In current review, recent progresses...

The traditional NH3 production method (Haber-Bosch process) is currently complemented by electrochemical synthesis at ambient conditions, but the rather low selectivity (as indicated Faradaic efficiency) for reduction of molecular N2 into impedes progress. Here, we present a powerful to significantly boost efficiency Au electrocatalysts 67.8% nitrogen reaction (NRR) increasing their electron density through construction inorganic donor-acceptor couples Ni and nanoparticles. unique role...

Abstract Production of ammonia is currently realized by the Haber–Bosch process, while electrochemical N 2 fixation under ambient conditions recognized as a promising green substitution in near future. A lack efficient electrocatalysts remains primary hurdle for initiation potential electrocatalytic synthesis ammonia. For cheaper metals, such copper, limited progress has been made to date. In this work, we boost reduction reaction catalytic activity Cu nanoparticles, which originally...

Strategies for regulating the electronic structure of transition-metal-based electrocatalysts through doping, heterostructure, oxygen vacancies, alloy, and strain engineering are investigated.

Electrochemical reduction of aqueous nitrates has emerged as a sustainable and practical approach in combining water treatment ammonia fertilizer synthesis. However, the development highly integrated catalytic electrodes with consistently high activity from non-noble metals remains challenging issue despite potential to greatly decrease costs promote real-world applications. Here, we report high-performance electrode electron-abundant surfaces obtained direct boronization nickel foam,...

Highly efficient fixation of CO2 for the synthesis useful organic carbonates has drawn much attention. The design sustainable Lewis acid-base pairs, which mainly relied on expensive ligands, is key challenge in activation substrate and molecule. Here, we report application Mott-Schottky type nanohybrids composed electron-deficient Cu electron-rich N-doped carbon fixation. A ligand-free additive-free method was used to boost basicity supports acidity by increasing Schottky barrier at their...

Engineering the adsorption of molecules on active sites is an integral and challenging part for design highly efficient transition-metal-based catalysts methanol dehydrogenation. A Mott-Schottky catalyst composed Ni nanoparticles tailorable nitrogen-doped carbon-foam (Ni/NCF) thus tunable energy presented selective dehydrogenation gas-phase to hydrogen CO even under relatively high weight hourly space velocities (WHSV). Both theoretical experimental results reveal key role rectifying contact...

Abstract NO x − reduction acts a pivotal part in sustaining globally balanced nitrogen cycle and restoring ecological environment, ammonia (NH 3 ) is an excellent energy carrier the most valuable product among all products of reaction, selectivity which far from satisfaction due to intrinsic complexity multiple‐electron ‐to‐NH process. Here, we utilize Schottky barrier‐induced surface electric field, by construction high density electron‐deficient Ni nanoparticles inside nitrogen‐rich...

Platinum (Pt) is the most effective bench-marked catalyst for producing renewable and clean hydrogen energy by electrochemical water splitting. There demand high HER catalytic activity to achieve efficient utilization minimize loading of Pt in catalysts. In this work, we significantly boost mass nanoparticles Ptx /Co 8.3 times higher than that commercial Pt/C using Co/NC heterojunctions as a heterogeneous version electron donors. The highly coupled interfaces between metal enrich density...

In order to prolong the service time and enhance biocompatibility of magnesium (Mg) alloys used for cardiovascular scaffolds, composite coatings Schiff base (corrosion inhibitor) sulfonated hyaluronic acid (S-HA) nanoparticles (NP@S-HA) with different sulfur content (10.02 wt% 11.55wt%) were prepared on ZE21B alloy by means electrostatic spraying 0.5 min, 1.0 min 1.5 in this paper. Through a series representations including corrosion experiments biological characterization, 11.55wt% spray...

The activation of C-H bonds is a central challenge in organic chemistry and usually key step for the retro-synthesis functional natural products due to high chemical stability bonds. Electrochemical methods are powerful alternative activation, but this approach requires overpotential homogeneous mediators. Here, we design electron-deficient W

The exploitation of metal-free organic polymers as electrodes for water splitting reactions is limited by their presumably low activity and poor stability, especially the oxygen evolution reaction (OER) under more critical conditions. Now, thickness a cheap robust polymer, poly(p-phenylene pyromellitimide) (PPPI) was rationally engineered an in situ polymerization method to make polymer available first time flexible, tailorable, efficient, ultra-stable oxidation over wide pH range. PPPI...

Biodegradable magnesium (Mg) alloy as a new generation of cardiovascular stent material has attracted great attention. However, the problems excessive degradability and lack corresponding biological functions Mg alloys still need to be solved urgently. In present study, series hyaluronic acid (HA)/polyethyleneimine (PEI) nanoparticles (NP) with optimized parameters were designed fixed on fluorination/poly-dopamine (PDA) treated Mg–Zn–Y-Nd prepare multi-functional composite coating. Our data...

Abstract Doping the host materials with either electron‐rich heteroatoms or electron‐deficient have been applied as a straightforward and main‐stream method to modify electronic structures boost electrochemical activity for various reactions, including nitrogen reduction reactions (NRR). As third type of dopants, isoelectric (exemplified Si atoms in carbon framework this work) designed highly efficient active centers NRR. same group element different size electronegativity support,...

Colorectal cancer usually refers to the occurrence of appendix, rectum or colon and other parts malignant tumor in large intestine mucosa glands, is also one most common tumors human. In recent years, studies have shown that chronic inflammation "initiator" cancer. Inflammation plays a causal role early formation by regulating initiation promotion genesis development through series inflammatory cytokines. The latter part this review describes several important factors: necrosis factor-α...

Highly base-free catalytic of biomass-derived feedstock into value-added chemical is great interest in catalysis but remains a challenge. Herein, hollow nanocatalyst composed Au nanoparticles as the core and Zn/Ni bimetallic metal–organic frameworks (MOFs) functionalized with −NH2 ligand shell (Au@Zn/Ni-MOF-2-NH2) fabricated through straightforward one-pot hydrothermal method for highly efficient, selective, synthesis d-xylonic acid by oxidation d-xylose. Experimental theoretical results...

Electrochemical oxygen evolution reaction (OER) is the bottleneck for realizing renewable powered green hydrogen production through water splitting due to challenges of electrode stability under harsh oxidative environments and electrolytes with extreme acidity basicity. Here, we introduce a single-atom manganese-incorporated ruthenium oxide electrocatalyst via facile impregnation approach catalyzing OER across wide pH range, while solving issues RuO2. The modified catalyst maintains over...

Transition metal-based catalysts usually suffer from poor coke resistance during the dehydrogenation processes of hydrocarbon compounds in gas–solid heterogeneous systems, including methanol dehydrogenation. Herein, atomically dispersed Ni sites have been rationally anchored nitrogen-doped carbon sheets (Ni–N4/NC), which could act as an integrated, active, and anticoking catalyst for with a high selectivity toward hydrogen CO under 15 h–1 (weight hourly space velocities, WHSV) fixed-bed...