Stable graphene suspensions are prepared using a new, green, and intriguing synthetic route. Graphene can be directly by the fast deoxygenation of exfoliated graphite oxide in strong alkaline solutions at low temperatures (50–90 °C), absence reducing agents. This study opens an opportunity towards production processable on industrial scale. Detailed facts importance to specialist readers published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They...

Nanoporous nickel hydroxide (Ni(OH)2) thin film was grown on the surface of ultrathin-graphite foam (UGF) via a hydrothermal reaction. The resulting free-standing Ni(OH)2/UGF composite used as electrode in supercapacitor without need for addition either binder or metal-based current collector. highly conductive 3D UGF network facilitates electron transport and porous Ni(OH)2 structure shortens ion diffusion paths rapid migration electrolyte ions. An asymmetric also made studied with positive...

Exfoliated 2H molybdenum disulfide (MoS2) has unique properties and potential applications in a wide range of fields, but corresponding studies have been hampered by the lack effective routes to it bulk quantities. This study presents rapid efficient route obtain exfoliated MoS2, which combines fast sonication-assisted lithium intercalation infrared (IR) laser-induced phase reversion. We found that complete MoS2 with butyllithium could be effected within 1.5 h aid sonication. The 1T...

A Si/graphene composite is drop-casted on an ultrathin-graphite foam (UGF) with three dimensional conductive network. The Si/graphene/UGF presents excellent stability and relatively high overall capacity when tested as anode for rechargeable lithium ion batteries.

Graphene has been successfully modified with palladium nanoparticles in a facile manner by reducing acetate [Pd(OAc)2] the present of sodium dodecyl sulfate (SDS), which is used as both surfactant and agent. The nanoparticle-graphene hybrids (Pd-graphene hybrids) are characterized high-resolution transmission electron microscopy, atomic force Raman spectroscopy, X-ray photoelectron diffraction, energy dispersive spectroscopy. We demonstrate that Pd-graphene can act an efficient catalyst for...

Acid catalysts are essential for various chemical reactions in the industrial hydrocarbon chemistry. Sulfonated carbon has shown promising application as a new, cheap and environmentally friendly solid acid catalyst. In this study, we prepared sulfonated graphene catalyst, it was characterized by electron microscopy, Raman spectroscopy, state 13C MAS NMR, energy dispersive spectroscopy (EDS) X-ray photoelectron (XPS). Catalytic hydrolysis of ethyl acetate shows that highly catalytic activity...

The controlled exfoliation of transition metal dichalcogenides (TMDs) into pristine single- or few-layer nanosheets remains a significant barrier to fundamental studies and device applications TMDs. Here we report novel strategy for exfoliating crystalline MoS2 suspensions with retention the semiconducting 2H phase. reaction substoichiometric amounts n-butyllithium results in intercalation edges crystals, which are then readily exfoliated 45 vol % ethanol–water solution. Surprisingly,...

Abstract Efficient charge separation and utilization are critical factors in photocatalysis. Herein, it is demonstrated that the complete spatial of oxidation reduction cocatalysts enhances efficacy surface reaction. Specifically, a Pt@NH 2 ‐UiO‐66@MnO x (PUM) heterostructured photocatalyst with Pt MnO as designed for optimization NH ‐UiO‐66 photocatalyst. Compared pristine ‐UiO‐66, (PU), (UM) samples, PUM sample exhibits highest hydrogen production activity. As cocatalysts, favors trapping...

Fenton-like reactions with persulfates as the oxidants have attracted increasing attentions for remediation of emerging antibiotic pollutions. However, developing effective activators outstanding activities and long-term stabilities remains a great challenge in these reactions. Herein, novel activator is successfully synthesized single iron atoms anchored on porous N-doped carbon (Fe-N-PC) by facile chemical vapor deposition (CVD) method. The Fe are coordinated four N according to XANES,...

MXenes, a family of two-dimensional (2D) transition-metal carbide and nitride materials, are supposed to be promising pseudocapacitive materials because their high electronic conductivity hydrophilic surfaces. prepared by removing the "A" elements corresponding MAX phases hydrofluoric acid (HF) or LiF–HCl etching, possess abundant terminal groups like −F, −OH, −O groups. It has been proven that MXenes with fewer −F more showed higher pseudocapacitor performance. In organic reactions, −OH −X...

An efficient strategy is proposed by engineering Co-doped MoS₂ coupled with Mo₂CT_x MXene to enhance the HER performance in alkaline media.

Capacitive deionization has been considered as a promising solution to the challenge of freshwater shortage due its high efficiency, low environmental footprint, and energy consumption. However, developing advanced electrode materials improve capacitive performance remains challenge. Herein, hierarchical bismuthene nanosheets (Bi-ene NSs)@MXene heterostructure was successfully prepared by combining Lewis acidic molten salt etching galvanic replacement reaction, which achieves effective...

Nitrogen and sulfur co-doped graphene (N,S-G) is activated using ZnCl2, KOH, CO2 to develop different defects functionalities. The modified carbo-catalysts are used activate peroxymonosulfate (PMS) for phenol degradation. Compared with nitrogen-doped (N-G), N,S-G exhibits better catalytic activity, KOH activation further enhances the oxidation efficiency. Radical quenching experiments, electrochemical characterization, electron paramagnetic resonance characterization reveal that N-G...

Herein, a series of Co@N–C materials are synthesized using nitrates (LiNO3, NaNO3, and KNO3) as templates to control the preferential growth cobalt (200) facet. Co@N–C–X (X = LiNO3, exhibit excellent activities long-term stabilities for Fenton-like degradation bisphenol A (BPA) with peroxymonosulfate (PMS) an oxidant. The texture coefficient (TC) is used investigate relationship between Co facets their catalytic activities, linear relation built TC Co(200) reaction rate constant (k)....

Abstract Aqueous zinc‐ion batteries (AZIBs), recognized for their safety and environmental friendliness, hold significant promise large‐scale energy storage. However, the rapid capacity degradation resulting from dissolution of active cathode materials hampers advancement AZIBs. Here, Ru 0.2 V 2 O 5 ∙0.41H (RuVO) is synthesized with remarkable retention (98.2% over 5000 cycles at 10 A g −1 ). The pre‐intercalation 3+ enhances stability both intrinsic cycling structures, elevating Gibbs free...

The increasing demand for energy has triggered tremendous research effort the development of high-performance and durable energy-storage devices. Advanced graphene-based electrodes with high electrical conductivity ion accessibility can exhibit superior electrochemical performance in Among them, binder-free configurations enhance electron electrode, which leads to a higher capacity by avoiding addition non-conductive inactive binders. Graphene, 2D material, be fabricated into porous flexible...

This paper describes the construction of reduced graphene oxide (rGO)/BiVO4 composites with maximized interfacial coupling and their application as visible light photocatalysts. Thin rGO sheets (<5 nm) could completely cover BiVO4 polyhedrons highly active (040) facets exposed through an evaporation-induced self-assembly process. In addition to increased surface adsorption effect rGO, a considerable enhancement photoactivity has been demonstrated degradation methylene blue upon covering rGO....