Mesoporous batteries and heterojunction batteries
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Herein, we explore a bottom-up strategy, carried out under mild conditions, for the facile synthesis of monolayered mesoporous-titania–mesoporous-carbon vertical heterostructure with uniform mesopore …
Two-Dimensional Mesoporous Heterostructure …
Herein, we explore a bottom-up strategy, carried out under mild conditions, for the facile synthesis of monolayered mesoporous-titania–mesoporous-carbon vertical heterostructure with uniform mesopore …
N-doped porous carbon coated g-C3N4/ g-C3N4 heterojunction …
Notorious shuttle effects and poor electrical conductivity of S have long hindered the commercialization of lithium-sulfur (Li-S) batteries. Herein, N-doped porous carbon coated graphitic carbon nitride heterojunction (g-C 3 N 4 / g-C 3 N 4 @C) composites was prepared by growing g-C 3 N 4 / g-C 3 N 4 heterojunction on the pores of the porous carbon. The effective …
In-situ synthesized mesoporous TiO2-B/anatase ...
Mesoporous TiO 2-B/anatase microparticles have been in-situ synthesized from K 2 Ti 2 O 5 without template. The TiO 2-B phase around the particle surface accelerates the diffusion of charges through the interface, while the anatase phase in the core maintains the capacity stability.The heterojunction interface between the main polymorph of anatase and the …
Photoactive g-C3N4/CuZIF-67 bifunctional ...
A photoactive bifunctional g-C 3 N 4 /CuZIF-67 electrocatalyst exhibits wide-range solar spectrum absorption, enhanced electron-hole pairs separation efficiency, and stable long-cycle-life battery-performance, owing to synergistic effects of a suitable bandgap width, staggered p-n heterojunction band gap structure, built-in electric field at its p-n heterojunction, …
Interfacial engineering of Bi2Te3/Sb2Te3 heterojunction enables …
DOI: 10.1016/J.ENSM.2021.03.012 Corpus ID: 233546332; Interfacial engineering of Bi2Te3/Sb2Te3 heterojunction enables high–energy cathode for aluminum batteries @article{Du2021InterfacialEO, title={Interfacial engineering of Bi2Te3/Sb2Te3 heterojunction enables high–energy cathode for aluminum batteries}, author={Yiqun Du and Boya Zhang and …
Investigation of ordered mesoporous carbon@MnO core–shell
Here, we present a design of core–shell structured carbon@MnO composite nanospheres and investigate its electrochemical performance as an anode material for lithium-ion batteries. The core–shell carbon@MnO composite nanospheres are obtained from the intermediate product of carbon@MnO2 nanospheres by coating a MnO2 layer over the …
Citrulline-induced mesoporous CoS/CoO heterojunction …
Herein, an effective bifunctional oxygen electrocatalyst of mesoporous CoS/CoO heterojunction nanorods (CoS/CoO PNRs) is constructed through two-step topological transformations of Co(CO3)0.5OH·0. EN. ... As an air-cathode, the CoS/CoO PNRs can enable the solid-state Zn-air battery to achieve a large power density, a fast dynamic response, ...
An Ion-Pumping Interphase on Graphdiyne/Graphite Heterojunction …
Introduction. Fast-charging capability and high energy density are essential prerequisites for accelerating the widespread application of electric vehicles powered by lithium-ion (Li-ion) batteries. 1 – 5 Unfortunately, typical anodes (graphite, 5 Li titanium oxide (LTO), 6 Si, 7 Mo 8, etc.) are unable to achieve fast-charging capability without sacrificing battery …
Laminar-protuberant like p-FeS2 rooted in mesoporous carbon …
Compared to LIBs, SIBs have emerged as a promising and competitive battery system because of unlimited and ubiquitous Na source (23.6 × 10 3 mg k g − 1 abundance in earth''s crust) [7] sides that, the periodic table displays similar group for Na and Li, hence they acquire comparable chemical and physical properties [8].However, it is more challenging for …
Graphene/Heterojunction Composite Prepared by Carbon …
An interlayer nanocomposite (CC@rGO) consisting of a graphene heterojunction with CoO and Co9S8 was prepared using a simple and low-cost hydrothermal calcination method, which was tested as a cathode sulfur carrier for lithium-sulfur batteries. The CC@rGO composite comprises a spherical heterostructure uniformly distributed between …
[PDF] N-Doped Graphene-Decorated NiCo Alloy Coupled with Mesoporous …
The good performance can be assigned to N-doped graphene-decorated NiCo alloy and mesoporous NiCoMoO nano-sheet, which not only increase the intrinsic activity and expose abundant catalytic activity sites, but also enhance its chemical and mechanical stability. N-doped graphene-coated structure and mesoporous nano-sheet can efficiently boost active …
SnO2/SnS heterojunction anchoring on CMK-3 mesoporous …
The results show that SnO2/SnS heterojunction has a closer to zero ΔG for lithium/sodium ion batteries compared to SnO2, indicating that the heterojunction enhances the reversibility of the conversion reaction in chemical reaction thermodynamics. ... {Zhang2023SnO2SnSHA, title={SnO2/SnS heterojunction anchoring on CMK-3 mesoporous …
2D Mesoporous Naphthalene‐Based Conductive …
Accordingly, the resultant zinc-iodine batteries deliver a high specific capacity of 271.4 mAh g −1, excellent rate capability, and impressive long-term cycling stability (35 000 …
SnO2/Bi2O3/NF heterojunction with ordered macro/meso-pore …
SnO 2 /Bi 2 O 3 /NF heterojunction with ordered macro/meso-pore structure as an advanced binder-free anode for lithium ion batteries. Author links open overlay panel Ruili Zhang a 1, Tian Fang a 1, Liping Ni b, ... The prepared SnO 2 /Bi 2 O 3 /NF IOs possessed connected macroporous and mesoporous structures with the diameter of 150 nm and 10.5 ...
Citrulline-induced mesoporous CoS/CoO heterojunction nanorods ...
Herein, an effective bifunctional oxygen electrocatalyst of mesoporous CoS/CoO heterojunction nanorods (CoS/CoO PNRs) is constructed through two-step topological …
Graphene/Heterojunction Composite Prepared by …
An interlayer nanocomposite (CC@rGO) consisting of a graphene heterojunction with CoO and Co9S8 was prepared using a simple and low-cost hydrothermal calcination method, which was tested as a cathode …
Size-controlled Co/CoO heterogeneous nanoparticles confined in …
The size of metal compound particles and interface electronic structure of heterojunctions in a matrix greatly affect oxygen reduction performance in zinc-air batteries. …
Hierarchically ordered mesoporous Co3O4 materials for high
Co 3 O 4 was developed as anode in lithium ion batteries in 2000 by Poizot et al. 1 can theoretically uptake more than 8 lithium per formula unit with a capacity as high as 890 mAh g −1 ...
Co/CoO heterojunction rich in oxygen vacancies introduced by …
Herein, Co/CoO heterojunction nanoparticles (NPs) rich in oxygen vacancies embedded in mesoporous walls of nitrogen-doped hollow carbon nanoboxes coupled with nitrogen-doped carbon nanotubes (P–Co/CoO V @NHCNB@NCNT) are well designed through zeolite-imidazole framework (ZIF-67) carbonization, chemical vapor deposition, and O 2 plasma treatment. As a …
Ordered mesoporous carbon with tubular framework …
Since it forms the p-n heterojunction with a relatively low potential ... developed by the nanocasting and hydrothermal methods and were employed as efficient anodes for lithium-ion batteries. The bimodal ordered mesoporous architecture of mesoporous carbon CMK-9 assisted in encapsulating the SnO 2 nanostructures into the mesopores and void ...
Investigation on the energy storage performance of Cu2Se@MnSe ...
At present, carbon materials, selenide and sulfides are the mainstream cathode materials for aluminum-ion battery [20] 2018, Liu et al. synthesized a special carbon nanoscrolls as a positive electrode material for aluminum batteries [21].Due to the excellent stability and ion transfer efficiency of this structure, the coulombic efficiency of the battery …
Z-scheme In2S3/MnO2/BiOCl heterojunction photo-enhanced …
Photo-assisted Li–O 2 batteries present a promising avenue for reducing overpotential and enhancing the capacity of next-generation energy storage devices. In this study, we introduce a novel photo-assisted Li–O 2 system featuring a Z-scheme In 2 S 3 /MnO 2 /BiOCl heterojunction as a photocathode. This innovative design significantly boosts visible light absorption and …
Scalable synthesis of mesoporous FeS2 nanorods as high …
Sodium-ion batteries (SIBs), as highly promising alternatives to lithium-ion batteries (LIBs), can be widely used in a variety of next-generation energy storage systems. However, the current commercial graphite anodes of LIBs could not intercalate sodium ions to appreciable extent, and the electrochemical irreversibility hinders further application. Searching for a suitable anode …
Investigation on the energy storage performance of Cu2Se@MnSe ...
Semantic Scholar extracted view of "Investigation on the energy storage performance of Cu2Se@MnSe heterojunction hollow spherical shell for aluminum-ion battery" by Chen Zhang et al. ... Mesoporous carbon hollow spheres with controllable pore structure for efficient lithium and aluminum ion storage.
Intimate triple phase interfaces confined in two-dimensional …
Semantic Scholar extracted view of "Intimate triple phase interfaces confined in two-dimensional ordered mesoporous carbon towards high-performance all-solid-state lithium-sulfur batteries" by Baihui Chen et al. ... Integrating CoP/Co heterojunction into nitrogen-doped carbon polyhedrons as electrocatalysts to promote polysulfides conversion in ...
A fast response hydrogen sensor based on the heterojunction of …
A fast response hydrogen sensor based on the heterojunction of MXene and SnO 2 nanosheets for lithium-ion battery failure detection. ... etching or washing, and a very small peak appears between 35 and 45 degrees. The XRD spectrum of 10 wt% MXene-SnO 2 heterojunction is at 2 ... Pt-Pd nanoalloys functionalized mesoporous SnO 2 spheres ...
Facile synthesis of mesoporous one-dimensional Fe2O3
One-dimensional (1D) transition metal oxides materials with unique mesoporous structure have potential applications in the energy conversion and storage field. In this work, 1D mesoporous Fe 2 O 3 nanowires growth on strain steel substrate were prepared through a two-step solution method and used as anode materials for lithium batteries.The electrode delivers …
Co/CoO heterojunction rich in oxygen vacancies …
In this work, Co/CoO heterojunction nanoparticles (NPs) rich in oxygen vacancies embedded in mesoporous walls of nitrogen-doped hollow carbon nanoboxes (NHCNBs) coupled with nitrogen-doped carbon nanotubes …
Size-controlled Co/CoO heterogeneous nanoparticles confined in …
Size-controlled Co/CoO heterogeneous nanoparticles confined in N-doped mesoporous carbon for efficient oxygen reduction in zinc-air batteries J Colloid Interface Sci . 2024 Jan;653(Pt B):1317-1325. doi: 10.1016/j.jcis.2023.09.176.
Two-electron redox chemistry via single-atom catalyst for …
Now a mesoporous single-atom catalyst steers the sluggish four-electron oxygen reduction reaction pathway to a faster two-electron process and enables highly reversible zinc–air batteries.
g-C3N4/g-C3N4 Heterojunction as the Sulfur Host for Enhanced …
Li–S batteries are recognized as one of the most promising energy storage and conversion devices because of the high theoretical energy density and acceptable financial and environmental costs but suffer from sluggish sulfur reduction. Herein, the g-C3N4/g-C3N4 heterojunction is synthesized using two kinds of precursors, aiming to adjust the electron cloud …
A Mott-Schottky Heterojunction with Strong ...
The design of the Fe/FeS2 heterojunction electrocatalyst provides a new strategy for the development of highly stable RT Na-S batteries. The practical application of the room-temperature sodium-sulfur (RT Na-S) batteries is currently limited by low reversible capacity and serious capacity decay due to the sluggish reaction kinetics and shuttle ...
Mesoporous materials for energy conversion and storage devices
In this Review, we summarize the primary methods for preparing mesoporous materials and discuss their applications as electrodes and/or catalysts in solar cells, solar fuel …
Synergized oxygen vacancies with Mn2O3@CeO2 heterojunction …
The application of Li–O 2 batteries (LOBs) with ultra-high theoretical energy density is limited due to the slow redox kinetics and serious side reactions, especially in high-rate cycles. Herein, CeO 2 is constructed on the surface of Mn 2 O 3 through an interface engineering strategy, and Mn 2 O 3 @CeO 2 heterojunction with good activity and stability at high current …
Hierarchical V3S4/C nanofibers with fast kinetics for ...
Luo H, Wang B, Wang CL, Wu FD, Jin F, Cong BW, Ning W, Zhou Y, Wang DL, Liu HK, Dou SX. Synergistic deficiency and heterojunction engineering boosted VO 2 redox kinetics for aqueous zinc-ion batteries with superior comprehensive performance. Energy Storage Mater. 2020;33:390.
Scalable synthesis of mesoporous FeS2 nanorods as high …
Our specially designed one-dimensional mesoporous structure of FeS2 takes full advantage of ultra-high strain relaxation as well as fast Na+ transport rate arising from microstructural …
Hierarchically ordered mesoporous Co3O4 materials …
High reversible capacities around 1141 mAh g−1 of the hierarchically mesoporous Co3O4 materials are obtained, implying their potential applications for high performance Li-ion batteries.