Synthesis and application of CeO2–NiO loaded TiO2 nanofiber as novel catalyst for hydrogen production from sodium borohydride hydrolysis

Tamboli, Ashif H.; Chaugule, Avinash A.; Sheikh, Faheem A.; Chung, Wook–Jin; Kim, Hern

doi:10.1016/j.energy.2015.06.013

Cited by 32 publications

(8 citation statements)

References 38 publications

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“…Compared with the reference samples of ZIF-8 and pristine TiO 2 ESNFs, FTIR analysis of the TiO 2 /ZIF-8 composite revealed the presence of an adsorption band at 421 cm –1 (Zn–N stretch), another adsorption band at 1574 cm –1 (CN stretch), and also two bands at 1421 and 996 cm –1 (C–N stretch), which were typically characteristic for ZIF-8. , The broad absorption below 1000 cm –1 can be found in all composites. The absorption peak around 456 cm –1 was the typical vibration of the Ti–O–Ti bond in TiO 2 . − It was worth noting that a significant adsorption appeared at 508 cm –1 , which is assigned to the formation of typical N–Ti–O bonds. , The Raman spectrum can also provide evidence of the structure of the TiO 2 /ZIF-8 composite. The Raman spectra of the TiO 2 ESNFs and the composites prepared with different TiO 2 /ZIF-8 ratios were shown in Figure S3.…”

Section: Resultsmentioning

confidence: 98%

Sonocrystallization of ZIF-8 on Electrostatic Spinning TiO₂ Nanofibers Surface with Enhanced Photocatalysis Property through Synergistic Effect

Zeng

Huang

Wang

et al. 2016

ACS Appl. Mater. Interfaces

204

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Semiconductor-metal-organic framework (MOF) hybrid photocatalysts have attracted increasing attention because of their enhanced photocatalytic activity. However, the effect of the interface reaction between semiconductor and MOFs is rarely studied. In this work, we studied the synthesis and photocatalytic activity of zeolitic imidazolate framework-8 (ZIF-8) decorated electrostatic spinning TiO2 nanofibers (TiO2 ESNFs). TiO2/ZIF-8 hybrid photocatalysts were prepared via a facile sonochemical route. It was crucial that the ZIF-8 was assembled homogeneously on the surface of TiO2 ESNFs and formed a N-Ti-O bond under sonochemical treatment, which may result in reducing recombination of the electron-hole pairs. The chemically bonded TiO2/ZIF-8 nanocomposites displayed excellent performance of thermal stability, controllable crystallinity, and great enhancement of photocatalytic activity in Rhodamine B (Rh B) photodegradation. Furthermore, the UV-vis light adsorption spectra of TiO2/ZIF-8 nanocomposites showed that the ZIF-8 photosensitizer extended the spectral response of TiO2 to the visible region. The new strategy reported here can enrich the method for designing new semiconductor-MOF hybrid photocatalysts.

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Section: Resultsmentioning

confidence: 98%

Sonocrystallization of ZIF-8 on Electrostatic Spinning TiO₂ Nanofibers Surface with Enhanced Photocatalysis Property through Synergistic Effect

Zeng

Huang

Wang

et al. 2016

ACS Appl. Mater. Interfaces

204

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“…As seen in Figure 10 B and the Arrhenius equation (Equation (4)), Ea = 35.21 kJ mol-1 was found. The literature reports activation energies for non-noble metals ranging from 16.28 to 42.45 kJ mol −1 [ 73 , 74 , 75 , 76 , 77 ]. The obtained E a value was compared with the E a values of various Co-based catalysts and catalysts supported on polymer substrate.…”

Section: Resultsmentioning

confidence: 99%

Electrospun Co Nanoparticles@PVDF-HFP Nanofibers as Efficient Catalyst for Dehydrogenation of Sodium Borohydride

et al. 2023

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Metallic Co NPs@poly(vinylidene fluoride-co- hexafluoropropylene) nanofibers (PVFH NFs) were successfully synthesized with the help of electrospinning and in situ reduction of Co2+ ions onto the surface of PVFH membrane. Synthesis of PVFH NFs containing 10, 20, 30, and 40 wt% of cobalt acetate tetrahydrate was achieved. Physiochemical techniques were used to confirm the formation of metallic Co@PVFH NFs. High catalytic activity of Co@PVFH NFs in the dehydrogenation sodium borohydride (SBH) was demonstrated. The formulation with 40 wt% Co proved to have the greatest performance in comparison to the others. Using 1 mmol of SBH and 100 mg of Co@PVFH NFs, 110 mL of H2 was produced in 19 min at a temperature of 25 °C, but only 56, 73, and 89 mL were produced using 10, 20, and 30 wt% Co, respectively. With the rise of catalyst concentration and reaction temperature, the amount of hydrogen generated increased. By raising the temperature from 25 to 55 °C, the activation energy was lowered to be 35.21 kJ mol−1 and the yield of H2 generation was raised to 100% in only 6 min. The kinetic study demonstrated that the reaction was pseudo-first order in terms of the amount of catalyst utilized and pseudo-zero order in terms of the SBH concentration. In addition, after six cycles of hydrolysis, the catalyst showed outstanding stability. The suggested catalyst has potential applications in H2 generation through hydrolysis of sodium borohydride due to its high catalytic activity and flexibility of recycling.

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“…As Supporting Information, TiO 2 prevents the agglomeration of active particles and provides a surface to build a heterogeneous catalyst with higher activity in various catalytic systems. , In the past decade, titanium dioxide (TiO 2 ) has gained attention for its role in the catalytic hydrolysis of NaBH 4 . – So far, various metals and metal oxide materials, such as cobalt borates, cobalt, nickel, samarium, and cerium oxide, have been used with TiO 2 support for hydrogen production from NaBH 4 hydrolysis. – ,, On the other hand, a relatively limited number of studies have been performed on the use of Ru/TiO 2 and especially Pt/TiO 2 catalysts in NaBH 4 hydrolysis. ,– In addition, a comparative analysis is lacking for the activation energies of the catalysts based on Ru and Pt on TiO 2 support in aqueous and alkaline solutions. – Most of the literature reports on activation energy comprise carbon-based support materials for Ru and Pt metals. – In previous research based on TiO 2 -supported Ru nanoparticles, Wei et al reported an H 2 generation in the NaBH 4 hydrolysis reaction with an activation energy of 55.9 kJ mol –1 . In recent work, the synergetic effect of porous titanium oxide cages was highlighted for PtNi alloy nanoparticles to have very low activation energy (28.7 kJ mol –1 ) …”

Section: Introductionmentioning

confidence: 99%

“…20−25 So far, various metals and metal oxide materials, such as cobalt borates, cobalt, nickel, samarium, and cerium oxide, have been used with TiO 2 support for hydrogen production from NaBH 4 hydrolysis. [20][21][22][23][24]26,27 On the other hand, a relatively limited number of studies have been performed on the use of Ru/TiO 2 and especially Pt/TiO 2 catalysts in NaBH 4 hydrolysis. 15,28−31 In addition, a comparative analysis is lacking for the activation energies of the catalysts based on Ru and Pt on TiO 2 support in aqueous and alkaline solutions.…”

Section: Introductionmentioning

confidence: 99%

Ruthenium and Platinum-Modified Titanium Dioxide Support for NaBH₄ Hydrolysis

Altaf,

Minkina,

Shabunya

et al. 2023

ACS Omega

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Highly stable platinum (Pt) and ruthenium (Ru)-based catalysts on titanium oxide (TiO 2 ) nanoparticle support were prepared. The productivity of hydrogen generation from sodium borohydride (NaBH 4 ) hydrolysis was observed to be as high as 95%. The activation energies for the hydrolysis reaction in the presence of Ru/TiO 2 in aqueous and alkaline solutions were 62.00 and 64.65 kJ mol −1 , respectively. On the other hand, the activation energy value of the hydrolysis reaction with the Pt/TiO 2 catalyst decreased from 60.5 to 53.2 kJ mol −1 , and the solution was changed from an aqueous to an alkaline medium. The experimental results have indicated that NaOH concentration (ranging from 0.5 to 2 M) affected the hydrogen generation rate (HGR) differently for both metals on the TiO 2 support. Consequently, the HGR of the hydrolysis reaction in the presence of the Ru/TiO 2 catalyst decreased with increasing NaOH concentration, whereas the Pt/TiO 2 catalyst efficiency increased with increasing NaOH concentration.

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Synthesis and application of CeO2–NiO loaded TiO2 nanofiber as novel catalyst for hydrogen production from sodium borohydride hydrolysis

Cited by 32 publications

References 38 publications

Sonocrystallization of ZIF-8 on Electrostatic Spinning TiO₂ Nanofibers Surface with Enhanced Photocatalysis Property through Synergistic Effect

Sonocrystallization of ZIF-8 on Electrostatic Spinning TiO₂ Nanofibers Surface with Enhanced Photocatalysis Property through Synergistic Effect

Electrospun Co Nanoparticles@PVDF-HFP Nanofibers as Efficient Catalyst for Dehydrogenation of Sodium Borohydride

Ruthenium and Platinum-Modified Titanium Dioxide Support for NaBH₄ Hydrolysis

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Synthesis and application of CeO2–NiO loaded TiO2 nanofiber as novel catalyst for hydrogen production from sodium borohydride hydrolysis

Cited by 32 publications

References 38 publications

Sonocrystallization of ZIF-8 on Electrostatic Spinning TiO2 Nanofibers Surface with Enhanced Photocatalysis Property through Synergistic Effect

Sonocrystallization of ZIF-8 on Electrostatic Spinning TiO2 Nanofibers Surface with Enhanced Photocatalysis Property through Synergistic Effect

Electrospun Co Nanoparticles@PVDF-HFP Nanofibers as Efficient Catalyst for Dehydrogenation of Sodium Borohydride

Ruthenium and Platinum-Modified Titanium Dioxide Support for NaBH4 Hydrolysis

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Product

Resources

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Sonocrystallization of ZIF-8 on Electrostatic Spinning TiO₂ Nanofibers Surface with Enhanced Photocatalysis Property through Synergistic Effect

Sonocrystallization of ZIF-8 on Electrostatic Spinning TiO₂ Nanofibers Surface with Enhanced Photocatalysis Property through Synergistic Effect

Ruthenium and Platinum-Modified Titanium Dioxide Support for NaBH₄ Hydrolysis