Preparation and chemical reduction of Pt(IV) chloride-GICS: Supported Pt vs Pt inclusion graphite compounds

Promoted Glycerol Oxidation Reaction in an Interface‐Confined Hierarchically Structured Catalyst

“…X‐ray diffraction (XRD) is a powerful technique for characterizing the structural evolution for intercalated materials. As shown in Figure a, reflections from the parent few‐layered graphene were essentially indiscernible at low angles, with the observed, weak, and very broad reflections at ≈13.5° assigned to a stage III intercalated compound with PtCl 4 (0.66 nm) . This is also validated by the 1D and 2D spectra of grazing incidence X‐ray diffraction (GIXRD) in Figure S6 in the Supporting Information.…”

“…Growth of Pt Nanosheets in Few‐Layered Graphene : A total of 1.18 g of few‐layered graphene (≈0.8 nm thickness, XF001W from Nanjing XFNANO Materials Tech Co., Ltd) and 0.804 g of chloroplatinic acid hexahydrate (H 2 PtCl 6 · 6H 2 O) were added to 20 mL of SOCl 2 . The mixture was then stirred for two days followed by sonication for 4 h prior to reflux at 83 °C for 4 h . After cooling down to room temperature, 40 mL of toluene was added to the mixture, with the product (PtCl 4 ‐in‐GN) filtered and washed with toluene, ethanol, water, and acetone before drying overnight at 80 °C.…”

“…The D band is also much stronger compared to that found in pristine graphene, with an increased I D / I G ratio of ≈0.68. Meanwhile, the 2D peak for PtCl 4 ‐in‐GN also downshifts to 2681 cm −1 due to the charge transfer between PtCl 4 and graphene . The reduction of PtCl 4 to its zero‐valent state recovers the disturbance in the aromatic structure, reflected by a reduced D band, the disappearance of the intercalation peak, and a backshift of the 2D band to its original position.…”

“…Layered materials are promising in hosting catalytically active materials, such as zero‐valent transition metals, in their interlayer spacing to enhance the activity and stability . Such encapsulation usually involves an isothermal vapor transport method to intercalate metal chlorides above their sublimation points under a pressure of chlorine gas, which is extremely dangerous and time‐consuming . It is also difficult to control the morphology of encapsulated transition metals via subsequent alkali metal reduction, yielding amorphous nanoparticles with a diameter of 3–10 nm .…”

Magnetic properties of cobalt‐carbon nanocomposites

“…MGs may be a source of new issues in solid state physics and are also very important for future industrial application in spintronics. methods of MGs' production: the synthesis by the reduction of corresponding acceptor-type metal-chloride GIC's [4][5][6][20][21][22] by hydrogen, by alkali metal vapor, by chemical reductants or by electrochemical methods. The structure, phase compositions and.…”