The results show that Pt-Fe/C catalyst has smaller crystal lattice parameter than Pt/C catalyst and the potential state of Fe in it should be alloy state integrated with Pt, but a portion of Fe in the catalyst surface exists as ferric oxides as well.是什么意思_The results show that Pt-Fe/C catalyst has smaller crystal lattice parameter than Pt/C catalyst and the potential state of Fe in it should be alloy state integrated with Pt, but a portion of Fe in the catalyst surface exists as ferric oxides as well.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句