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Comparison of Electrochemical Synthesis of Ammonia by Using Sulfonated Polysulfone and Nafion Membrane with Sm 1.5 Sr 0.5 NiO 4
Author(s) -
Liu Ruiquan,
Xu Gaochao
Publication year - 2010
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201090044
Subject(s) - polysulfone , nafion , non blocking i/o , chemistry , membrane , electrochemistry , cathode , ammonia , nuclear chemistry , scanning electron microscope , anode , inorganic chemistry , analytical chemistry (journal) , chemical engineering , materials science , environmental chemistry , composite material , organic chemistry , catalysis , electrode , biochemistry , engineering
Polysulfone (PSF) and sulfonated polysulfone (SPSF) were synthesized and characterized by IR spectrum. Sm 1.5 Sr 0.5 NiO 4 (SSN) and Ni‐Ce 0.8 Sm 0.2 O 2− δ (Ni‐SDC, Ni‐samarium doped ceria) were prepared and characterized by X‐ray diffraction (XRD) and scanning electron microscopy (SEM). Ammonia was synthesized from wet hydrogen and dry nitrogen with applied voltage, using SSN as cathode, Ni‐SDC as anode, Nafion and SPSF as proton membrane respectively. The performances of Nafion and SPSF membranes in ammonia synthesis were investigated and compared at atmospheric pressure and low temperature (25–100°C). The results demonstrated that the proton conducting performances of Nafion and SPSF membranes were similar and the highest rates of evolution of ammonia were up to 1.05×10 −8 and 1.03×10 −8 mol·cm −2 ·s −1 respectively at 80°C and 2.5 V.