Spinel NiFe2O4 nanoparticles decorated 2D Ti3C2 MXene sheets for efficient water splitting: Experiments and theories

Shinde, Pratik V.; Mane, Pratap; Chakraborty, Brahmananda; Rout, Chandra Sekhar

doi:10.1016/j.jcis.2021.06.007

Cited by 82 publications

(40 citation statements)

References 37 publications

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“…A band occurred at 1600 and 3400 cm –1 in the FTIR spectrum of all materials, which corresponds to the bending and stretching vibration of H–O–H. The peak at 642 cm –1 is attributed to the deformation vibration of the Ti–O bond in Ti 3 C 2 T x nanosheets . The absorption bands at 1017, 1382, and 1745 cm –1 indicate the C–F vibrations, the existence of molecular water (O–H), and CO bonding .…”

Section: Resultsmentioning

confidence: 96%

“…The peak at 642 cm −1 is attributed to the deformation vibration of the Ti−O bond in Ti 3 C 2 T x nanosheets. 27 The absorption bands at 1017, 1382, and 1745 cm −1 indicate the C−F vibrations, the existence of molecular water (O−H), and CO bonding. 27 All these peaks strongly suggest that negative functional groups are present on the surface of the synthesized Ti 3 C 2 T x nanosheets.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…27 The absorption bands at 1017, 1382, and 1745 cm −1 indicate the C−F vibrations, the existence of molecular water (O−H), and CO bonding. 27 All these peaks strongly suggest that negative functional groups are present on the surface of the synthesized Ti 3 C 2 T x nanosheets. The absorption band appearing around 745 cm −1 for pristine MoTe 2 corresponds to the metal-telluride vibrations.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…The pristine Ti 3 C 2 T x MXene sheets were obtained by etching the Al atom layers from the layer-structured Ti 3 AlC 2 with HF solution. 27 In a typical synthesis, 3 g of Ti 3 AlC 2 MAX phase was added into 60 mL of 40 wt % HF solution, and then the mixture was kept stirring at 40 °C for 24 h. After that, the reaction product layered Ti 3 C 2 T x MXene sheets were washed by DI water until pH ≈ 7. Then, the centrifugally separated precipitate was dried in a vacuum oven at 60 °C for 12 h to receive few-layered Ti 3 C 2 T x MXene nanosheets.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

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Promising 2D/2D MoTe₂/Ti₃C₂T_x Hybrid Materials for Boosted Hydrogen Evolution Reaction

Shinde

Mane

Late

et al. 2021

ACS Appl. Energy Mater.

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Hydrogen as an energy source has been regarded as a clean and efficient energy carrier and as a promising alternative to traditional fossil fuels. Among numerous hydrogen generation systems, water splitting is deemed as the most productive technology to generate clean and high-purity hydrogen. The prominent features-based two-dimensional (2D) materials have proven themselves as efficient as well as robust electrocatalysts for the hydrogen evolution reaction (HER). Here we designed a remarkably active and durable HER catalyst by integrating semimetallic 1T′ MoTe2 petal clusters on Ti3C2T x nanosheets by a facile hydrothermal approach. As-prepared MoTe2/Ti3C2T x hybrids exhibited significantly enhanced electrocatalytic HER performance, generating a cathode current density of 10 mA/cm2 at an overpotential of only 293 mV with a small Tafel slope of 65 mV/dec and satisfactory long-term stability in acidic media. The experimental results are further verified by the first-principles studies presenting the geometrical and electronic properties of MoTe2, Ti3C2T x , and MoTe2/Ti3C2T x hybrids. The interaction between the Ti3C2T x and MoTe2 is due to charge transfer from Ti3C2T x to MoTe2. Theoretically, we have calculated the overpotential for HER activities. Computed overpotential follows the qualitative trend of MoTe2/Ti3C2T x < MoTe2 < Ti3C2T x , which supports the experimental findings. The unique aspects of these unique hybrids, such as semimetallic nature MoTe2 petal clusters and strong interface interaction between MoTe2 and conductive Ti3C2T x nanosheets, cause superior HER catalytic performance. We believe these outcomes accentuate the promising perspective of MoTe2/Ti3C2T x hybrids as a capable and nonprecious catalyst and provide an auspicious prospect for the development of 2D materials-based HER electrocatalysts.

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Section: Resultsmentioning

confidence: 96%

Section: ■ Results and Discussionmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

Section: ■ Experimental Sectionmentioning

confidence: 99%

See 2 more Smart Citations

Promising 2D/2D MoTe₂/Ti₃C₂T_x Hybrid Materials for Boosted Hydrogen Evolution Reaction

Shinde

Mane

Late

et al. 2021

ACS Appl. Energy Mater.

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“…For example, Ti 3 C 2 T x MXene combined with CoNi layered double hydroxides (CoNi LDH) showed the strong interfacial interaction and electronic coupling, thus giving high OER activity in alkaline solution. [33] Similarly, MXene combined with heterojunction, [34] metal oxides, [35] and others to enhance OER performance. In this regard, it is feasible to enhance the catalytic activity by the interface interaction between MXene and catalyst.…”

Section: Introductionmentioning

confidence: 99%

Ru/Rh Cation Doping and Oxygen‐Vacancy Engineering of FeOOH Nanoarrays@Ti₃C₂T_x MXene Heterojunction for Highly Efficient and Stable Electrocatalytic Oxygen Evolution

Zhang

Shan

Wang

et al. 2022

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Oxyhydroxides hold promise as highly-efficient non-noble electrocatalysts for the oxygen evolution reaction (OER), but their poor conductivity and structural instability greatly impede their progress. Herein, the authors develop a cation-doping and oxygenvacancy engineering strategy to fabricate Ru/Rh-doped FeOOH nanoarrays with abundant oxygen-vacancies in situ grown on Ti 3 C 2 T x MXene (Ru/Rh-FeOOH@Ti 3 C 2 T x ) as highly-efficient OER electrocatalysts. Benefiting from Ru/Rh-cation regulation, oxygenvacancy engineering, and heterojunction synergy between MXene and modulated FeOOH, the optimized Rh/Ru-FeOOH@Ti 3 C 2 T x electrocatalysts exhibit excellent OER activities and remarkable stabilities with 100 h. Particularly, 3%Rh-FeOOH@Ti 3 C 2 T x electrocatalyst only needs a 223 mV overpotential at 10 mA cm -2 and 306 mV to reach 100 mA cm -2 , which is superior to commercial IrO 2 catalyst and most reported oxyhydroxide-based electrocatalysts. Further, systematically theoretical caculation, kinetics, thermodynamics, and microstructural analysis verify that the integration of Ru/Rh-cation doping and oxygen vacancy obviously enhances the intrinsic conductivity and lattice defects of FeOOH and expose more active sites, thereby decreasing the adsorption/desorption energy barrier and activation energy, and improving the specific activity and catalytic kinetics of electrocatalysts, whereas in situ hybridization with MXene strengthens the structural stability. This work clearly confirms that cationdoping and oxygen-vacancy engineering offers a joint strategy for the electronic structure modulation and design of highlyefficient inexpensive OER electrocatalysts.Research data are not shared.

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MXenes for Catalysis and Electrocatalysis

Inobeme,

Mathew,

Ajai

et al. 2024

MXenes

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Spinel NiFe2O4 nanoparticles decorated 2D Ti3C2 MXene sheets for efficient water splitting: Experiments and theories

Cited by 82 publications

References 37 publications

Promising 2D/2D MoTe₂/Ti₃C₂T_x Hybrid Materials for Boosted Hydrogen Evolution Reaction

Promising 2D/2D MoTe₂/Ti₃C₂T_x Hybrid Materials for Boosted Hydrogen Evolution Reaction

Ru/Rh Cation Doping and Oxygen‐Vacancy Engineering of FeOOH Nanoarrays@Ti₃C₂T_x MXene Heterojunction for Highly Efficient and Stable Electrocatalytic Oxygen Evolution

MXenes for Catalysis and Electrocatalysis

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Spinel NiFe2O4 nanoparticles decorated 2D Ti3C2 MXene sheets for efficient water splitting: Experiments and theories

Cited by 82 publications

References 37 publications

Promising 2D/2D MoTe2/Ti3C2Tx Hybrid Materials for Boosted Hydrogen Evolution Reaction

Promising 2D/2D MoTe2/Ti3C2Tx Hybrid Materials for Boosted Hydrogen Evolution Reaction

Ru/Rh Cation Doping and Oxygen‐Vacancy Engineering of FeOOH Nanoarrays@Ti3C2Tx MXene Heterojunction for Highly Efficient and Stable Electrocatalytic Oxygen Evolution

MXenes for Catalysis and Electrocatalysis

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Product

Resources

About

Promising 2D/2D MoTe₂/Ti₃C₂T_x Hybrid Materials for Boosted Hydrogen Evolution Reaction

Promising 2D/2D MoTe₂/Ti₃C₂T_x Hybrid Materials for Boosted Hydrogen Evolution Reaction

Ru/Rh Cation Doping and Oxygen‐Vacancy Engineering of FeOOH Nanoarrays@Ti₃C₂T_x MXene Heterojunction for Highly Efficient and Stable Electrocatalytic Oxygen Evolution