We successfully synthesized large-scale and highly pure ultrathin SnO2 nanosheets (NSs), with a minimum thickness in the regime of ca. 2.1 nm as determined by HRTEM good agreement XRD refinements AFM height profiles. Through TEM observations on time-dependent samples, we found that as-prepared NSs were assembled "oriented attachment" preformed nanoparticles (NPs). Systematic trials showed well-defined could only be obtained under appropriate reaction time, solvent, additive, precursor...

Abstract Semiconductor heterostructures are of great interest in a wide range applications. In this work, we design and synthesize novel heteronanostructure with controlled relative composition, i.e., BiVO 4 /Bi 2 S 3 hollow discoid‐like particles mesoporous shell. The synthesis involves facile anion exchange process by reacting pre‐synthesized Na an aqueous solution. Benefiting from the unique structural features formation heterostructure, as‐prepared discoids exhibit significantly enhanced...

Abstract Hollow nanostructures with mesoporous shells are attractive for their advantageous structure‐dependent high‐efficiency electrochemical catalytic performances. In this work, a novel nanostructure of Fe‐doped CoP hollow triangle plate arrays (Fe–CoP HTPAs) unique is designed and synthesized through room‐temperature postsynthetic ligand exchange reaction followed by facile phosphorization treatment. The mild the presynthesized ZIF‐67 TPAs K 4 [Fe(CN) 6 ] in an aqueous solution at room...

Brought to light: Ag2S–Ag hybrid nanotubes were synthesized by rapid microwave-assisted sulfidation of Ag2CO3 nanorods. The relative amounts Ag2S and Ag in the structure can be controlled easily varying concentration sulfur precursor. optimized has superior photocatalytic activity (yellow) for both degradation methyl orange (see graph) reduction aqueous CrVI under visible-light irradiation. Detailed facts importance specialist readers are published as "Supporting Information". Such documents...

Ultrasmall palladium nanoparticles (1.5–2.5 nm) encapsulated within the highly porous and hydrothermally stable amine-functionalized metal–organic framework UiO-66 exhibit excellent catalytic activity for selective conversion of vanillin to 2-methoxy-4-methylphenol.

The photooxidation of water into O2 has been identified as the barrier water-splitting, and light-driven oxidation catalysts have intensively explored to develop highly active splitting materials. Despite fascinating advantages for photocatalytic oxidation, such abundance in nature, inexpensiveness, low toxicity, thermo/photostability, suitable electronic band structures, hematite α-Fe2O3 is a poor photocatalyst due its short exciton lifetime hole diffusion length, weak carrier mobility,...

A self-templating strategy was used to prepare novel mesoporous Cu-doped Co₉S₈ rectangular nanotube arrays (Cu-Co₉S₈ NTAs) as an advanced electrode for all-solid-state asymmetric supercapacitors, which deliver a high energy density of 71.93 W h kg⁻¹ at power 750 kg⁻¹.

Highly reversible plating/stripping in aqueous electrolytes is one of the critical processes determining performance Zn-ion batteries, but it severely impeded by parasitic side reaction and dendrite growth. Herein, a novel electrolyte engineering strategy first proposed based on usage 100 mM xylitol additive, which inhibits hydrogen evolution accelerates cations migration expelling active H2 O molecules weakening electrostatic interaction through oriented reconstruction bonds. Concomitantly,...

Abstract Dual doping of boron (B) and nitrogen (N) provides an effective strategy to tailor chemical properties electron distributions in the carbon plane, as well customize energy storage performance. Herein, a systematic theoretical experimental study on rationally constructing coralloidal B, N dual‐doped (BNC) nano‐bundles with abundant BN bonds for efficient Zn‐ion is presented. Compared single B or doped sample other sites, bond sites are found boost adsorption Zn ions enhance...

The large-scale applicability of Zn-metal anodes is severely impeded by the issues such as dendrite growth, complicated hydrogen evolution, and uncontrollable passivation reaction. Herein, a negatively charged carboxylated double-network hydrogel electrolyte (Gelatin/Sodium alginate-acetate, denoted Gel/SA-acetate) has been developed to stabilize interfacial electrochemistry, which restructures type Zn2+ ion solvent sheath optimized via chain-liquid synergistic effect. New bonds are...

Surface atomic vacancies in semiconductor photocatalysts are highly attractive for improving catalysis efficiency and product selectivity, but the underlying mechanism of vacancy-mediated selectivity still remains ambiguous. By constructing a type direct Z-scheme Co3O4/NiCo2O4 hetero-nanocage (HNC) that accommodates three kinds possible oxygen (VOs), comprehensive study was performed to unravel roles demonstrate efficient visible-light-driven carbon dioxide (CO2) methanation. Upon light...

Abstract The highly sluggish kinetics of oxygen reduction/evolution reactions (ORR/OER) at air cathodes lead to problems such as low power density and unsatisfactory cycling life with rechargeable Zn–air batteries (RZABs). To engineer the reaction cathodes, a hydrophobic–aerophilic strategy is developed fabricate self‐supported cathode based on CoS/Fe 3 S 4 nanoparticles encapsulated in S, N co‐doped carbon plate arrays (CoS/Fe @SNCP). It experimentally shown that situ growth bimetallic...

Abstract Highly reversible plating/stripping in aqueous electrolytes is one of the critical processes determining performance Zn‐ion batteries, but it severely impeded by parasitic side reaction and dendrite growth. Herein, a novel electrolyte engineering strategy first proposed based on usage 100 mM xylitol additive, which inhibits hydrogen evolution accelerates cations migration expelling active H 2 O molecules weakening electrostatic interaction through oriented reconstruction bonds....

Abstract Rechargeable aqueous zinc‐ion batteries (ZIBs) are highly promising for large‐scale sustainable energy storage applications, but there remain serious problems such as Zn dendrites and side reactions that limit the cycling performance. Herein, arrays of core–shell nanorods on Cu foam developed to stabilize zinc anodes, which have a hierarchical topological structure consisting N‐doped carbon layers embedded with zincophilic component 5 8 alloy (Cu @NC). It is found inner alloys...

Modulating electronic structures of single-atom metal cocatalysts is vital for highly active photoreduction CO2, and it's especially challenging to develop a facile method modify the dispersion atomical photocatalytic sites. We herein report an ion-loading pyrolysis route in-situ anchor Pd single atoms as well twinned nanoparticles on ultra-thin graphitic carbon nitride nanosheets (PdTP/PdSA-CN) high-efficiency CO2. The anchored donate electrons adjacent Pd–N4 sites through networks,...

Metal sulfides are a type of potential anode materials for lithium-ion batteries (LIBs). However, their electrochemical behaviors and mechanism during the charge discharge process remain unclear. In present paper, we use CoS2 as model material to investigate using in situ transmission electron microscopy (TEM). Two kinds reaction revealed. The pure particles show side-to-side conversion process, which large anisotropic size expansion (47.1%) occurs that results formation cracks fractures...