The current boom of safe and renewable energy storage systems is driving the recent renaissance Zn-ion batteries. However, notorious tip-induced dendrite growth on Zn anode restricts their further application. Herein, first demonstration constructing a flexible 3D carbon nanotube (CNT) framework as plating/stripping scaffold constituted to achieve dendrite-free robust anode. Compared with pristine deposited electrode, as-fabricated Zn/CNT affords lower nucleation overpotential more...

The construction of advanced Zn-ion hybrid supercapacitors (ZHSCs) with high energy density is promising but still challenging, especially at current densities. In this work, a high-energy and ultrastable aqueous ZHSC demonstrated by introducing N dopants into hierarchically porous carbon cathode for the purpose enhancing its chemical adsorption Zn ions. Experimental results theoretical simulations reveal that doping not only significantly facilitates process ions, also greatly increases...

This review highlights the progress and development of metal nitrides as electrode materials for energy storage devices.

Supercapacitors (SCs) have great promise as the state‐of‐the‐art power source in portable electronics and hybrid vehicles. The performance of SCs is largely determined by properties electrode material, numerous efforts been devoted to explorations novel materials. Recently, iron‐based materials, including Fe 2 O 3 , 4 FeOOH, FeO x CoFe MnFe received considerable attention very promising materials for due their high theoretical specific capacitances, natural abundance, low cost, non‐toxicity....

Abstract Currently, the main bottleneck for widespread application of Ni–Zn batteries is their poor cycling stability as a result irreversibility Ni‐based cathode and dendrite formation Zn anode during charging–discharging processes. Herein, highly rechargeable, flexible, fiber‐shaped battery with impressive electrochemical performance rationally demonstrated by employing Ni–NiO heterostructured nanosheets cathode. Benefiting from improved conductivity enhanced electroactivity heterojunction...

High-temperature activation has been commonly used to boost the photoelectrochemical (PEC) performance of hematite nanowires for water oxidation, by inducing Sn diffusion from fluorine-doped tin oxide (FTO) substrate into hematite. Yet, thermally annealed at high temperature suffer two major drawbacks that negatively affect their performance. First, structural deformation reduces light absorption capability nanowire. Second, this "passive" doping method leads nonuniform distribution dopant...

Herein, a three-dimensional monolithic and metal-free N-doped porous carbon cloth electrocatalyst was fabricated.

Abstract The surface plasmon resonance (SPR) induced photothermal and photoelectrocatalysis effects are crucial for catalytic reactions in many areas. However, it is still difficult to distinguish these two quantitatively. Here we used surface‐enhanced Raman scattering (SERS) detect the photoelectrocatalytic by SPR from Au core Pt shell Nanoparticles (Au@Pt NPs), calculated quantitative contribution of ratio towards activity. effect on nanoparticle after illumination detected SERS. generated...

We have rationally synthesized and optimized catalytic nanoparticles consisting of a gold core, covered by palladium shell, onto which platinum clusters are deposited (Au@Pd@Pt NPs). The amount Pt Pd used is extremely small, yet they show unusually high activity for electrooxidation formic acid. structure has only 2 atomic layers half-monolayer equivalent (θPt ≈ 0.5) but further increase in the loading or will actually reduce activity, inferring that synergistic effect exists between three...

Due to their unique architectures and outstanding electrical properties, three dimensional graphene‐based frameworks (3DGFs) have attracted extensive attention in wide fields. However, recently reported techniques always require complex processes high cost, which severely limit large‐scale application. In this study, the massive preparation of macroscopically porous 3DGFs from inherently inexpensive graphite paper is for first time realized by simply combining modified Hummer's method with...

Abstract Carbon composites with embedded metal/metal oxides represent a group of versatile electrochemical catalysts that has attracted extensive research attention. However, the beauty this concept is marred by severe carbon evaporation and aggregation metal species during their synthetic process, leading to diminishment in active sites catalytic durability. To address issue, study demonstrates feasibility utilizing Al 2 O 3 nanolayer trap volatile nitrogen alleviate Co pyrolysis Zn/Co‐ZIFs...

Abstract The optimization of surface‐enhanced Raman scattering (SERS) activity gold nanoparticles is essential for further enhancing SERS capability in terms high sensitivity, stability and reproducibility. Recently, we utilized a simple seed‐mediated growth method to synthesize monodisperse Au with controllable size from about 16 160 nm, which were characterized by scanning electron microscopy (SEM), transmission (TEM) UV–vis spectroscopy. These can be easily formed as uniform thin film on...

Away from the surface: Novel nanoparticles (NPs) consisting of 16 nm Au cores surrounded by Pd shells various thicknesses catalyze Suzuki–Miyaura cross-coupling reactions in water at room temperature. NPs having two to five monolayers thick exhibit highest catalytic activity. Catalysis was attributed leaching species through synergistic action carbonate base and arylboronic acid.

This review presents the current progress of 3D structured electrodes, mainly focusing on their design, assembly and applications in supercapacitors. The main challenges new trends electrode development have also been proposed.

Gold nanoparticle (Au NP) mirrors, which exhibit both high reflectance and electrical conductance, were self-assembled at a [heptane + 1,2-dichloroethane]/water liquid/liquid interface. The highest reflectance, as observed experimentally confirmed by finite difference time domain calculations, occurred for Au NP films consisting of 60 nm diameter NPs approximate monolayer surface coverage. Scanning electrochemical microscopy approach curves over the interfacial metallic revealed transition...

Abstract The challenge in the artificial CO 2 reduction to fuel is achieving high selective electrocatalysts. Here, a highly Cu O/CuO heterostructure electrocatalyst developed for electroreduction. nanowires modified by Ni nanoparticles exhibit superior catalytic performance with faradic efficiency (95% CO). Theoretical and experimental analyses show that hybridization of can not only adjust d‐band center electrocatalysts enhance intrinsic activity but also improve adsorption COOH*...

Photocatalysis is a promising technology for renewable energy production. Many photocatalysis have realized the visible-light-driven catalytic activity. However, it still difficult to achieve enhanced photocatalytic activity with tunable wavelength. We designed wavelength photoelectrochemical cells by tuning surface plasmon resonance (SPR) peaks, which can be controlled aspect ratios of Au nanorods, both cathode hydrogen evolution reaction and anode electrooxidation methanol reaction. The...

The aim of this work is to further improve the molecular generality and substrate SERS (i.e., fully optimize activity transition-metal electrodes). We utilized a strategy borrowing high from Au core based on Au-core Pt-shell (Au@Pt) nanoparticle film electrodes, which can be simply routinely prepared. shell thickness about one five monolayers Pt atoms well controlled by adjusting ratio number seeds Pt(IV) ions in solution. experimental results carbon monoxide adsorption indicate that...

Abstract Shell‐isolated nanoparticle‐enhanced Raman spectroscopy (SHINERS) based on Au@SiO 2 or Au@Al O 3 nanoparticles (NPs) shows great potential to break the long‐standing limitations of substrate and surface generality surface‐enhanced scattering (SERS). However, shell SiO Al can easily be dissolved in alkaline media, which limits applications SHINERS systems. Besides that, synthesis NPs further simplified replaced by other that are more amenable for mass production. In an attempt make...

An efficient and facile surface partial oxidation strategy was demonstrated to significantly enhance the reversibility durability of Bi nanoflakes.

Directly monitoring the oxygen reduction reaction (ORR) process in situ is very important to deeply understand mechanism and a critical guideline for design of high-efficiency catalysts, but there still lack definite evidence clarify effect between adsorbed intermediates strain/electronic enhanced ORR performance. Herein, surface-enhanced Raman spectroscopy (SERS) was employed detect during on Au@Pd@Pt core/shell heterogeneous nanoparticles (NPs). Direct spectroscopic *OOH intermediate...