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Hong, Hao (author), Sun, J. (author), Wu, Cinan (author), Liu, Zewen (author)High performance mixed potential type NO<sub>2</sub> sensors using porous yttria-stabilized zirconia (YSZ) layers doped with different concentration graphite as solid electrolyte and LaFeO<sub>3</sub> as sensing electrode were fabricated and characterized. LaFeO<sub>3</sub> was prepared by a typical citrate sol–gel method and characterized...journal article 2019