Tunable oxidative dehydrogenation of ethane in a solid oxide electrolysis cell via modulating oxygen activity
Tunable oxidative dehydrogenation of ethane in a solid oxide electrolysis cell via modulating oxygen activity
研究概述
以V掺杂Sr2Ti0.8(Fe1.2−xVx)O6−δ作为固体氧化物电解池阳极，降低金属–氧共价性及氧活性，使乙烷氧化脱氢更倾向生成并释放乙烯，抑制深度脱氢。700 ℃、1.6 V下乙烯收率51%，揭示氧活性在转化率与选择性平衡中的作用。
谱图与表征信息
Fig. 3. Spectroscopic and electronic structure analysis: (a) Fe L-edge sXAS; (b) normalized Fe K-edge EXAFS; (c) phase-uncorrected Fourier transforms of k2-weighted Fe K-edge EXAFS; (d–f) wavelet transforms of k2-weighted EXAFS for STF, STFV05, and STFV20; (g) Fe–O crystal orbital Hamilton population (COHP); (h) inte grated COHP (−ICOHP) below EF; (i) V L-edge and O K-edge sXAS for STF and STFV05.