Multi-functional integration of pore P25@C@MoS2 core-double shell nanostructures as robust ternary anodes with enhanced lithium storage properties

Chen, Biao; Zhao, Naiqin; Wei, Chaopeng; Zhou, Jingwen; He, Fang; Shi, Chunsheng; He, Chunnian; Liu, Enzuo

doi:10.1016/j.apsusc.2017.01.003

Cited by 26 publications

(9 citation statements)

References 51 publications

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“…This finding indicates the reduction in crystallinity and TiO 2 on the surface of Cu-BTC are amorphization, which agrees with the HRTEM results presented in Figure 3G. The Cu-BTC peaks might be covered by the peaks of amorphous TiO 2 and would be difficult to observe [52]. Thus, the XRD patterns of the Cu-BTC@TiO 2 showed no crystalline phases, except for the broad peak arising from an amorphous TiO 2 shell [53].…”

Section: Resultssupporting

confidence: 76%

Combining the Photocatalysis and Absorption Properties of Core-Shell Cu-BTC@TiO2 Microspheres: Highly Efficient Desulfurization of Thiophenic Compounds from Fuel

Liu

et al. 2018

Materials

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A core-shell Cu-benzene-1,3,5-tricarboxylic acid (Cu-BTC)@TiO2 was successfully synthesized for photocatalysis-assisted adsorptive desulfurization to improve adsorptive desulfurization (ADS) performance. Under ultraviolet (UV) light irradiation, the TiO2 shell on the surface of Cu-BTC achieved photocatalytic oxidation of thiophenic S-compounds, and the Cu-BTC core adsorbed the oxidation products (sulfoxides and sulfones). The photocatalyst and adsorbent were combined using a distinct core-shell structure. The morphology and structure of the fabricated Cu-BTC@TiO2 microspheres were verified by scanning electron microscopy, high-resolution transmission electron microscopy, energy-dispersive x-ray spectroscopy, X-ray powder diffraction, nitrogen adsorption-desorption and X-ray photoelectron spectroscopy analyses. A potential formation mechanism of Cu-BTC@TiO2 is proposed based on complementary experiments. The sulfur removal efficiency of the microspheres was evaluated by selective adsorption of benzothiophene (BT) and dibenzothiophene (DBT) from a model fuel with a sulfur concentration of 1000 ppmw. Within a reaction time of 20 min, the BT and DBT conversion reached 86% and 95%, respectively, and achieved ADS capacities of 63.76 and 59.39 mg/g, respectively. The BT conversion and DBT conversion obtained using Cu-BTC@TiO2 was 6.5 and 4.6 times higher, respectively, than that obtained using Cu-BTC. A desulfurization mechanism was proposed, the interaction between thiophenic sulfur compounds and Cu-BTC@TiO2 microspheres was discussed, and the kinetic behavior was analyzed.

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Section: Resultssupporting

confidence: 76%

Combining the Photocatalysis and Absorption Properties of Core-Shell Cu-BTC@TiO2 Microspheres: Highly Efficient Desulfurization of Thiophenic Compounds from Fuel

Liu

et al. 2018

Materials

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“…In the curve of TiO 2 -P25, the Raman scattering peaks at 154.0, 393.9, 516.3 and 632.4 cm À1 can be associated with Eg(1), Bg(1), Ag(1) þ Bg 2 anatase TiO 2 , respectively (Fig. 4a) [22]. In addition, the Raman phonon vibrational mode of rutile TiO 2 at 483.1 cm À1 correspond Eg, since TiO 2 -P25 has both anatase and rutile phase.…”

Section: Resultsmentioning

confidence: 99%

Highly active P25@Pd/C nanocomposite for the degradation of Naphthol Blue Black with visible light

Krishnakumar

Kumar

Gil

et al. 2018

Journal of Molecular Structure

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TiO 2-P25 supported Pd/C (P25@Pd/C) composite was prepared by the solid state dispersion method. The prepared composite was characterized by XRD, Raman, PL, SEM and DRS measurements. The photocatalytic activity of the composite was tested towards Naphthol Blue Black (NBB) azo dye degradation under visible light. The photocatalytic activity of P25 was highly influenced by Pd/C. Almost complete degradation was achieved with P25@Pd/C in 120 min, and found to be more efficient when compared with pristine Degussa-P25. The composite was reused in four cycles without loss of activity. A mechanism was proposed for NBB degradation by P25@Pd/C composite under visible light.

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“…The binding energies of Ti 2p in the composite were observed at 458.6 (Ti 2p 3/2 ) and 464.4 (Ti 2p 1/2 ) eV, confirming that TTIP pyrolysis in the flame can generate normal surface states of Ti IV in TiO 2 . [ 51 ] The O 1s core spectra showed the formation of Ti–O bindings in TiO 2 and clarified the contacts between TiO 2 and G (CO and OH in carbon) formed during the flame reaction. The C 1s profile showed three peaks at 284.8, 286.4, and 288.7 eV, which were assigned to CC, CO, and OCO functionalities, respectively, [ 52,53 ] supporting the formation of G layers and the existence of TiOC and TiOH peaks in the O 1s profile.…”

Section: Resultsmentioning

confidence: 99%

Coaxial Multiphase Flame for Continuous‐Flow Assembly of Ternary Nanocomposite Photocatalysts

Kwak

Prakash

Lim

et al. 2022

Adv Funct Materials

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For the low-cost production of graphene (G)-included composites, the growth of graphene on a transition metal in hydrocarbon flames is introduced, where the hydrocarbons are adsorbed on the metal surface, followed by catalytic decomposition, leading to continuous G formation. On the other hand, the flame synthesis of G is still a batch process, limiting the practical applications of such materials. Moreover, the hybridization of G for enhanced catalytic activities requires additional reaction and separation steps. Here, a coaxial multiphase flame is generated and combined with a rotating Cu-Ni foil and ultrasonic bath for the continuous-flow assembly of ternary G composites with low-cost and rapid implementation. The continuous flows to generate a multicomponent flame consist of MoS 2 particle-laden N 2 gas (inner), titanium isopropoxide vapor-laden CH 4 -air (middle), and ethanol liquid (outer), while Cu-Ni foil plies between the flame and ultrasonic bath for the assembly and dispersion of MoS 2 -TiO 2 @G composites. The configuration of the composite can be modulated by replacing the MoS 2 flow with a CdS flow to construct CdS-TiO 2 @G. From photocatalytic H 2 production and CO 2 reduction tests, the developed coaxial flame provides comparable performance with analogous architectures from the usual multistep methods despite the highthroughput production.

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Multi-functional integration of pore P25@C@MoS2 core-double shell nanostructures as robust ternary anodes with enhanced lithium storage properties

Cited by 26 publications

References 51 publications

Combining the Photocatalysis and Absorption Properties of Core-Shell Cu-BTC@TiO2 Microspheres: Highly Efficient Desulfurization of Thiophenic Compounds from Fuel

Combining the Photocatalysis and Absorption Properties of Core-Shell Cu-BTC@TiO2 Microspheres: Highly Efficient Desulfurization of Thiophenic Compounds from Fuel

Highly active P25@Pd/C nanocomposite for the degradation of Naphthol Blue Black with visible light

Coaxial Multiphase Flame for Continuous‐Flow Assembly of Ternary Nanocomposite Photocatalysts

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