Electrochemical Synthesis of Ammonia Based on Co 3 Mo 3 N Catalyst and LiAlO 2–(Li, Na, K) 2 CO 3 Composite Electrolyte

Ibrahim A Amar, Rong Lan, Christophe TG Petit, Shanwen Tao

    Research output: Contribution to journalArticle

    14 Citations (Scopus)

    Abstract

    Cobalt molybdenum nitride (Co3Mo3N) catalyst was synthesised through ammonolysis of the corresponding precursors by flowing pure ammonia gas. The catalyst was characterised by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Ammonia was successfully synthesised from wet hydrogen and dry nitrogen at atmospheric pressure using Co3Mo3N–Ag composite as cathode, Ag–Pd alloy as anode and LiAlO2–(Li/Na/K)2CO3 composite as an electrolyte. Ammonia formation was investigated at 400, 425 and 450 °C, and the maximum observed ammonia formation rate was 3.27×10−10 mol s−1 cm−2 at 450 °C when applied at 0.8 V. The catalytic activity of Co3Mo3N for electrochemical ammonia synthesis is lower than that of Pd. The successful synthesis of ammonia demonstrates that LiAlO2–(Li/Na/K)2CO3 composite exhibits protonic or/and oxygen ion conduction.
    Original languageEnglish
    Pages (from-to)286-294
    Number of pages8
    JournalElectrocatalysis
    Volume6
    Issue number3
    Early online date5 Dec 2014
    DOIs
    Publication statusPublished - May 2015

    Fingerprint

    Carbon Monoxide
    Ammonia
    Electrolytes
    Catalysts
    Composite materials
    Molybdenum
    Cobalt
    Nitrides
    Atmospheric pressure
    Hydrogen
    Catalyst activity
    Anodes
    Cathodes
    Nitrogen
    Gases
    Ions
    Oxygen
    X ray diffraction
    Scanning electron microscopy

    Keywords

    • Electrochemical synthesis of ammonia
    • Nitrides
    • Co3Mo3N
    • Oxide-carbonate composite electrolyte

    Cite this

    Electrochemical Synthesis of Ammonia Based on Co 3 Mo 3 N Catalyst and LiAlO 2–(Li, Na, K) 2 CO 3 Composite Electrolyte. / Amar, Ibrahim A; Lan, Rong; Petit, Christophe TG ; Tao, Shanwen .

    In: Electrocatalysis, Vol. 6, No. 3, 05.2015, p. 286-294.

    Research output: Contribution to journalArticle

    Amar, Ibrahim A ; Lan, Rong ; Petit, Christophe TG ; Tao, Shanwen . / Electrochemical Synthesis of Ammonia Based on Co 3 Mo 3 N Catalyst and LiAlO 2–(Li, Na, K) 2 CO 3 Composite Electrolyte. In: Electrocatalysis. 2015 ; Vol. 6, No. 3. pp. 286-294.
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    abstract = "Cobalt molybdenum nitride (Co3Mo3N) catalyst was synthesised through ammonolysis of the corresponding precursors by flowing pure ammonia gas. The catalyst was characterised by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Ammonia was successfully synthesised from wet hydrogen and dry nitrogen at atmospheric pressure using Co3Mo3N–Ag composite as cathode, Ag–Pd alloy as anode and LiAlO2–(Li/Na/K)2CO3 composite as an electrolyte. Ammonia formation was investigated at 400, 425 and 450 °C, and the maximum observed ammonia formation rate was 3.27×10−10 mol s−1 cm−2 at 450 °C when applied at 0.8 V. The catalytic activity of Co3Mo3N for electrochemical ammonia synthesis is lower than that of Pd. The successful synthesis of ammonia demonstrates that LiAlO2–(Li/Na/K)2CO3 composite exhibits protonic or/and oxygen ion conduction.",
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    T1 - Electrochemical Synthesis of Ammonia Based on Co 3 Mo 3 N Catalyst and LiAlO 2–(Li, Na, K) 2 CO 3 Composite Electrolyte

    AU - Amar, Ibrahim A

    AU - Lan, Rong

    AU - Petit, Christophe TG

    AU - Tao, Shanwen

    PY - 2015/5

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    N2 - Cobalt molybdenum nitride (Co3Mo3N) catalyst was synthesised through ammonolysis of the corresponding precursors by flowing pure ammonia gas. The catalyst was characterised by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Ammonia was successfully synthesised from wet hydrogen and dry nitrogen at atmospheric pressure using Co3Mo3N–Ag composite as cathode, Ag–Pd alloy as anode and LiAlO2–(Li/Na/K)2CO3 composite as an electrolyte. Ammonia formation was investigated at 400, 425 and 450 °C, and the maximum observed ammonia formation rate was 3.27×10−10 mol s−1 cm−2 at 450 °C when applied at 0.8 V. The catalytic activity of Co3Mo3N for electrochemical ammonia synthesis is lower than that of Pd. The successful synthesis of ammonia demonstrates that LiAlO2–(Li/Na/K)2CO3 composite exhibits protonic or/and oxygen ion conduction.

    AB - Cobalt molybdenum nitride (Co3Mo3N) catalyst was synthesised through ammonolysis of the corresponding precursors by flowing pure ammonia gas. The catalyst was characterised by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Ammonia was successfully synthesised from wet hydrogen and dry nitrogen at atmospheric pressure using Co3Mo3N–Ag composite as cathode, Ag–Pd alloy as anode and LiAlO2–(Li/Na/K)2CO3 composite as an electrolyte. Ammonia formation was investigated at 400, 425 and 450 °C, and the maximum observed ammonia formation rate was 3.27×10−10 mol s−1 cm−2 at 450 °C when applied at 0.8 V. The catalytic activity of Co3Mo3N for electrochemical ammonia synthesis is lower than that of Pd. The successful synthesis of ammonia demonstrates that LiAlO2–(Li/Na/K)2CO3 composite exhibits protonic or/and oxygen ion conduction.

    KW - Electrochemical synthesis of ammonia

    KW - Nitrides

    KW - Co3Mo3N

    KW - Oxide-carbonate composite electrolyte

    U2 - 10.1007/s12678-014-0242-x

    DO - 10.1007/s12678-014-0242-x

    M3 - Article

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    JO - Electrocatalysis

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