Electrocatalytic performance of Sb-modified Bi25FeO40 for nitrogen fixation

Zhang, Yu; Cao, Shihai; Chu, Liang T.; Shen, Jiaming; Chen, Yeqing; Feng, Yanchao; Chen, Huan; Li, Rui; Jiang, Fang

doi:10.1016/j.jcis.2021.02.106

Cited by 18 publications

(15 citation statements)

References 51 publications

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“…The multiple valence states occurred at the Mn and Fe elements of the dual-phase catalyst. For single state Ga 2p in Figure S5d, the corresponding peaks appeared at 1117.35 and 1144.22 eV for both Ga 2p 3/2 and Ga 2p 1/2 orbitals, respectively. − The two deconvoluted peaks of O 1s at 529.47 and 531.29 eV were ascribed to the lattice oxygen (O L ) and oxygen vacancy (OV), respectively, as depicted in Figure e. ,, 50.71% O contains 52.89% O L and 47.11% OV (Table S2). The OV site, not belonging to the lattice-bonded oxygen, is weakly attached by oxygen species.…”

Section: Resultsmentioning

confidence: 94%

In Situ Grown (Fe,Mn,Ga)₃O_4–x Spinel/(Mn,Fe)₂O_3–y Bixbyite Dual-Phase Electrocatalyst for Preeminent Nitrogen Reduction to Ammonia: A Step toward the NH₃ Economy

Gemeda

Kuo

Wolde

et al. 2023

ACS Appl. Energy Mater.

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Employing a non-noble trimetal oxide system toward an electrochemical nitrogen reduction reaction (eNRR) instead of a century-long and CO2-emission Haber–Bosch process reveals a green path for NH3 production. In this work, the trimetal Fe–Mn–Ga oxide electrocatalyst was prepared with a facile one-pot hydrothermal method followed by annealing. Crystal structure, morphology, composition, and electrochemical properties were characterized. The flower-like (Fe,Mn,Ga)3O4–x spinel/tabular crystal-like (Mn,Fe)2O3–y bixbyite composite electrocatalyst was in situ formed with many active oxygen atoms on the oxygen vacancy sites and transition metals of Fe and Mn at multiple oxidation states. In a N2-saturated 0.1 M Na2SO4 solution, the NH3 yield rate at a potential of −0.6 V vs RHE is 814 μg h–1mgcat –1 (2036 μg h–1cm–2) with Faradaic efficiency (FE) of 5.77%, while the highest FE of 19.7% is achieved at −0.5 V with a yield rate of 599 μg h–1mgcat –1. The reaction mechanism for NH3 production is investigated and explained.

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Section: Resultsmentioning

confidence: 94%

In Situ Grown (Fe,Mn,Ga)₃O_4–x Spinel/(Mn,Fe)₂O_3–y Bixbyite Dual-Phase Electrocatalyst for Preeminent Nitrogen Reduction to Ammonia: A Step toward the NH₃ Economy

Gemeda

Kuo

Wolde

et al. 2023

ACS Appl. Energy Mater.

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“…105,106 Apart from low-valence metallic Bi, many bismuth-based compounds have been explored for electrocatalytic N 2 RR, such as Bi 2 O 3 , 107−109 Bi 2 S 3 , 110,111 118 and Bi 25 FeO 40 . 119 However, fully oxidized Bi is inactive for electrocatalytic N 2 RR, as indicated by DFT calculation. 120 The electron occupation of the Bi p orbital needs to be modulated through designed strategies, including oxidation state adjustment, heteroatom doping, oxygen vacancy (V O ) engineering, amorphization, or heterostructure construction.…”

Section: P-block-element-based Electrocatalysts For Nh 3 Synthesismentioning

confidence: 93%

“…As indicated by the DFT calculations, K + could not only lower the free energy change (Δ G ) for the potential-determining step (PDS) (Figure a) but also inhibit the proton transfer from the bulk solution to the electrode surface (Figure b), which contributed to a selective N 2 RR process with an extremely high FE of 66% . The alloying strategy was further developed to synthesize BiNi and Pd 3 Bi electrocatalysts, which could optimize the adsorption and activation of N 2 . , Apart from low-valence metallic Bi, many bismuth-based compounds have been explored for electrocatalytic N 2 RR, such as Bi 2 O 3 , − Bi 2 S 3 , , Bi 2 Te 3 , Bi/Bi 2 O 2 CO 3, Bi 2 WO 6 , , Bi 2 MoO 6 , BiVO 4 , Bi 4 V 2 O 11 , and Bi 25 FeO 40 . However, fully oxidized Bi is inactive for electrocatalytic N 2 RR, as indicated by DFT calculation .…”

Section: P-block-element-based Electrocatalysts For Nh3 Synthesismentioning

confidence: 99%

Emerging p-Block-Element-Based Electrocatalysts for Sustainable Nitrogen Conversion

Liu

Lee

et al. 2022

ACS Nano

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Artificial nitrogen conversion reactions, such as the production of ammonia via dinitrogen or nitrate reduction and the synthesis of organonitrogen compounds via C−N coupling, play a pivotal role in the modern life. As alternatives to the traditional industrial processes that are energy-and carbon-emission-intensive, electrocatalytic nitrogen conversion reactions under mild conditions have attracted significant research interests. However, the electrosynthesis process still suffers from low product yield and Faradaic efficiency, which highlight the importance of developing efficient catalysts. In contrast to the transition-metal-based catalysts that have been widely studied, the p-block-element-based catalysts have recently shown promising performance because of their intriguing physiochemical properties and intrinsically poor hydrogen adsorption ability. In this Perspective, we summarize the latest breakthroughs in the development of p-block-elementbased electrocatalysts toward nitrogen conversion applications, including ammonia electrosynthesis from N 2 reduction and nitrate reduction and urea electrosynthesis using nitrogen-containing feedstocks and carbon dioxide. The catalyst design strategies and the underlying reaction mechanisms are discussed. Finally, major challenges and opportunities in future research directions are also proposed.

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“…For comparison, Bi 25 FeO 40 -H catalysts were prepared by the hydrothermal method based on previous report . Generally, 5 mmol Bi(NO 3 ) 3 ·5H 2 O and 5 mmol Fe(NO 3 ) 3 ·9H 2 O were mixed in 5 mL of dilute HNO 3 (10%).…”

Section: Methodsmentioning

confidence: 99%

“…For comparison, Bi 25 FeO 40 -H catalysts were prepared by the hydrothermal method based on previous report. 37 Generally, 5 mmol Bi(NO 3 ) 3 •5H 2 O and 5 mmol Fe(NO 3 ) 3 •9H 2 O were mixed in 5 mL of dilute HNO 3 (10%). Then, a dropwise addition of 6 M KOH solution was added to the mixed solution under continuous stirring until pH values up to 10.…”

Section: Preparation Of Bimentioning

confidence: 99%

Synthesis of Bi₂₅FeO₄₀ Nanoparticles with Oxygen Vacancies via Ball Milling for Fenton Oxidation of Tetracycline Hydrochloride and Reduction of Cr(VI)

Zou

Dong

Wang

et al. 2023

ACS Appl. Nano Mater.

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Though heterogeneous Fenton-like reactions possess various characteristics such as a wide application range and mild reaction conditions, their reactivity is currently restricted by unsatisfactory H2O2 decomposition efficiency and low pH adaptation. Hence, Bi25FeO40 nanoparticles prepared via the mechanical ball-milling method (Bi25FeO40-B) with extensive oxygen vacancies possess high reactive oxygen species production performance by enhancing the H2O2 decomposition for tetracycline hydrochloride oxidation and Cr(VI) reduction. H2O2 decomposition efficiency can reach 55.3% in the presence of the Bi25FeO40-B catalyst, which is much higher than that of Bi25FeO40 prepared by the traditional hydrothermal method (23.8%). The Bi25FeO40-B/H2O2 heterogeneous Fenton system demonstrates efficient performance for simultaneous oxidation of tetracycline hydrochloride (TCH) and reduction of Cr(VI). It is capable of removing 75.2% of 50 mg/L TCH and 93.0% of 20 mg/L Cr(VI) at pHinitial = 7, respectively. Abundant oxygen vacancies on the surface of Bi25FeO40-B nanoparticles due to the nanometer size effect can accelerate the decomposition of H2O2 to promote the formation of reactive oxygen species for removing the target organic pollutants and reduction of Cr(VI). Consequently, this work provides a strategy for the preparation of oxygen-rich Bi25FeO40 catalysts for efficient degradation of contaminants and depicts the bright future of Fe-based metal oxides with oxygen vacancies on H2O2 activation in Fenton-like reactions.

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Electrocatalytic performance of Sb-modified Bi25FeO40 for nitrogen fixation

Cited by 18 publications

References 51 publications

In Situ Grown (Fe,Mn,Ga)₃O_4–x Spinel/(Mn,Fe)₂O_3–y Bixbyite Dual-Phase Electrocatalyst for Preeminent Nitrogen Reduction to Ammonia: A Step toward the NH₃ Economy

In Situ Grown (Fe,Mn,Ga)₃O_4–x Spinel/(Mn,Fe)₂O_3–y Bixbyite Dual-Phase Electrocatalyst for Preeminent Nitrogen Reduction to Ammonia: A Step toward the NH₃ Economy

Emerging p-Block-Element-Based Electrocatalysts for Sustainable Nitrogen Conversion

Synthesis of Bi₂₅FeO₄₀ Nanoparticles with Oxygen Vacancies via Ball Milling for Fenton Oxidation of Tetracycline Hydrochloride and Reduction of Cr(VI)

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Electrocatalytic performance of Sb-modified Bi25FeO40 for nitrogen fixation

Cited by 18 publications

References 51 publications

In Situ Grown (Fe,Mn,Ga)3O4–x Spinel/(Mn,Fe)2O3–y Bixbyite Dual-Phase Electrocatalyst for Preeminent Nitrogen Reduction to Ammonia: A Step toward the NH3 Economy

In Situ Grown (Fe,Mn,Ga)3O4–x Spinel/(Mn,Fe)2O3–y Bixbyite Dual-Phase Electrocatalyst for Preeminent Nitrogen Reduction to Ammonia: A Step toward the NH3 Economy

Emerging p-Block-Element-Based Electrocatalysts for Sustainable Nitrogen Conversion

Synthesis of Bi25FeO40 Nanoparticles with Oxygen Vacancies via Ball Milling for Fenton Oxidation of Tetracycline Hydrochloride and Reduction of Cr(VI)

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Product

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In Situ Grown (Fe,Mn,Ga)₃O_4–x Spinel/(Mn,Fe)₂O_3–y Bixbyite Dual-Phase Electrocatalyst for Preeminent Nitrogen Reduction to Ammonia: A Step toward the NH₃ Economy

In Situ Grown (Fe,Mn,Ga)₃O_4–x Spinel/(Mn,Fe)₂O_3–y Bixbyite Dual-Phase Electrocatalyst for Preeminent Nitrogen Reduction to Ammonia: A Step toward the NH₃ Economy

Synthesis of Bi₂₅FeO₄₀ Nanoparticles with Oxygen Vacancies via Ball Milling for Fenton Oxidation of Tetracycline Hydrochloride and Reduction of Cr(VI)