Electrospun zirconia nanofibers for enhancing the electrochemical synthesis of ammonia by artificial nitrogen fixation

Xia, Jiaojiao; Guo, Haoran; Cheng, Maozeng; Chen, Chuyan; Wang, Minkang; Xiang, Yong; Li, Tingshuai; Traversa, Enrico

doi:10.1039/d0ta08089f

Cited by 45 publications

(23 citation statements)

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“…Zirconia nanofiber mats are ceramic nanofiber mats with a wide range of possible applications as scaffolds for solid oxide fuel cells cathodes [5,6], separators for high-power rechargeable batteries [7], filters and adsorbents [8][9][10][11], catalysts [12][13][14], gas sensors [15], bone tissue regeneration scaffolds [16], shape-memory material for artificial muscle applications [17], electromagnetic interference shielding [18], an element of a light-sensitive photodetector [19], electrode material for electrochemical devices [20], etc.…”

Section: Introductionmentioning

confidence: 99%

Effect of Zirconia Nanofibers Structure Evolution on the Hardness and Young’s Modulus of Their Mats

et al. 2021

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Zirconia nanofiber mats containing filaments with the average diameter of less than 100 nm were fabricated. It is found that the hardness and Young’s modulus of the mats are sensitive to the microstructure, phase composition and average diameter of the zirconia nanofibers. The hardness and Young’s modulus of the prepared zirconia nanofiber mats vary from 0.86 to 1.67 MPa and from 133 to 362 MPa, respectively, wherein an increase in hardness is accompanied by the rise in Young’s modulus.

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Section: Introductionmentioning

confidence: 99%

Effect of Zirconia Nanofibers Structure Evolution on the Hardness and Young’s Modulus of Their Mats

et al. 2021

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“…Over 90% of the molecular N 2 in the atmosphere is reduced to NH 3 by N 2 -fixing microorganisms. Thus, researchers have attempted to mimic the process of natural NH 3 synthesis as an alternative method to artificial NH 3 fixation at room temperature and 1 atm. ,− …”

Section: Introductionmentioning

confidence: 99%

Electrochemical Reduction of N₂ into NH₃ under Ambient Conditions Using Ag-doped TiO₂ Nanofibers

Dong

Wang

et al. 2021

ACS Appl. Nano Mater.

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The efficient electrochemical synthesis of ammonia (NH 3 ) is a topic of great concern in theoretical research and in various industries. However, given the limitations of high-performance catalysts, achieving high NH 3 yields from the electrocatalytic N 2 reduction reaction (ENRR) remains challenging. In this work, we report that a Ag-doped titanium dioxide (TiO 2 ) nanofiber catalyst synthesized by a simple electrospinning method could effectively convert N 2 into NH 3 at room temperature. The Ag-doped TiO 2 nanofibers had a high NH 3 yield rate of 3.158 × 10 −10 mol s −1 cm −2 with a Faradaic efficiency (FE) of 0.13% at a low overpotential of −0.6 V versus a reversible hydrogen electrode (RHE) in acidic solution (0.1 mol L −1 HCl). The absence of hydrazine in the system proved that the prepared catalyst has excellent selectivity. Operation for eight consecutive cycles at an overpotential of −0.6 V vs RHE demonstrated the high stability of the Ag-doped TiO 2 nanofibers without obvious variations in the NH 3 yield rate and FE. The current density in the chronoamperometric curve did not decrease remarkably over 12 h of continuous electrolysis, thus confirming the durability of the catalyst. This work proves that Ag/TiO 2 nanofibers may be a highly efficient ENRR catalyst that could achieve high NH 3 yield rates. The unique structure of the interface between Ag and TiO 2 in the Ag/TiO 2 nanofibers prepared by electrospinning not only enhances the adsorption of N 2 but also promotes electron exchange and the synergy between the nanofibers and N 2 .

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“…[3][4][5][6] Noble metal catalysts (Pd, 7 Au, 8 Ag, 9 and Ru 10 ) have been proven to be active electrocatalysts for the NRR, but their scarcity and high price hinder their widespread applications. Much attention has therefore focused on the design and development of earth-abundant non-noble metal catalysts, such as metal oxides, 11,12 sulfides, 13 carbides 14 and nitrides, 15 and metal-free materials. 16,17 TiO 2 has attracted great attention due to its advantages of natural abundance, environmental benignity and excellent stability.…”

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confidence: 99%

Enhanced electrocatalytic performance of TiO₂ nanoparticles by Pd doping toward ammonia synthesis under ambient conditions

et al. 2022

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Electrospun zirconia nanofibers for enhancing the electrochemical synthesis of ammonia by artificial nitrogen fixation

Abstract: Electrocatalytic nitrogen reduction reaction (NRR) has been deemed as a promising and reliable approach to massively produce ammonia at ambient conditions. A high-efficiency electrocatalyst with an excellent selectivity is highly...

Cited by 45 publications

References 53 publications

Effect of Zirconia Nanofibers Structure Evolution on the Hardness and Young’s Modulus of Their Mats

Effect of Zirconia Nanofibers Structure Evolution on the Hardness and Young’s Modulus of Their Mats

Electrochemical Reduction of N₂ into NH₃ under Ambient Conditions Using Ag-doped TiO₂ Nanofibers

Enhanced electrocatalytic performance of TiO₂ nanoparticles by Pd doping toward ammonia synthesis under ambient conditions

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Electrospun zirconia nanofibers for enhancing the electrochemical synthesis of ammonia by artificial nitrogen fixation

Abstract: Electrocatalytic nitrogen reduction reaction (NRR) has been deemed as a promising and reliable approach to massively produce ammonia at ambient conditions. A high-efficiency electrocatalyst with an excellent selectivity is highly...

Cited by 45 publications

References 53 publications

Effect of Zirconia Nanofibers Structure Evolution on the Hardness and Young’s Modulus of Their Mats

Effect of Zirconia Nanofibers Structure Evolution on the Hardness and Young’s Modulus of Their Mats

Electrochemical Reduction of N2 into NH3 under Ambient Conditions Using Ag-doped TiO2 Nanofibers

Enhanced electrocatalytic performance of TiO2 nanoparticles by Pd doping toward ammonia synthesis under ambient conditions

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Product

Resources

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Electrochemical Reduction of N₂ into NH₃ under Ambient Conditions Using Ag-doped TiO₂ Nanofibers

Enhanced electrocatalytic performance of TiO₂ nanoparticles by Pd doping toward ammonia synthesis under ambient conditions