广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2014年
21期
59-61,151
,共4页
金环%王娟%徐特%张轶%王齐%丛燕青
金環%王娟%徐特%張軼%王齊%叢燕青
금배%왕연%서특%장질%왕제%총연청
氧化铋%催化剂%选择性氧化%苯甲醇%苯甲醛
氧化鉍%催化劑%選擇性氧化%苯甲醇%苯甲醛
양화필%최화제%선택성양화%분갑순%분갑철
Bi2 O3%catalysts%selective oxidation%benzyl alcohol%benzaldehyde
采用滴凃法和电沉积法制备了Bi2 O3薄膜电极，运用场发射扫描电子显微镜和X射线衍射仪对其进行了表征。在水相中以苯甲醇选择性氧化合成苯甲醛为模型反应，研究Bi2 O3薄膜的催化性能。其中电沉积法制备的Bi2 O3薄膜电极在水相溶液中表现出优异的电催化选择性氧化性能，苯甲醇的转化率最高，并且在外加偏压为2V时达到了最高的苯甲醛选择性和苯甲醛收率。
採用滴凃法和電沉積法製備瞭Bi2 O3薄膜電極，運用場髮射掃描電子顯微鏡和X射線衍射儀對其進行瞭錶徵。在水相中以苯甲醇選擇性氧化閤成苯甲醛為模型反應，研究Bi2 O3薄膜的催化性能。其中電沉積法製備的Bi2 O3薄膜電極在水相溶液中錶現齣優異的電催化選擇性氧化性能，苯甲醇的轉化率最高，併且在外加偏壓為2V時達到瞭最高的苯甲醛選擇性和苯甲醛收率。
채용적도법화전침적법제비료Bi2 O3박막전겁，운용장발사소묘전자현미경화X사선연사의대기진행료표정。재수상중이분갑순선택성양화합성분갑철위모형반응，연구Bi2 O3박막적최화성능。기중전침적법제비적Bi2 O3박막전겁재수상용액중표현출우이적전최화선택성양화성능，분갑순적전화솔최고，병차재외가편압위2V시체도료최고적분갑철선택성화분갑철수솔。
Bi2 O3 electrodes were successfully synthesized by coating and electrodeposition methods respectively. The properties of the composite electrode were characterized by scanning electron microscopy and X - ray diffraction. Furthermore, the acquiring benzaldehyde via the selective oxidation of benzyl alcohol in water solution was studied. The Bi2 O3 electrode prepared by electrodeposition showed excellent electrocatalytic properties of selective oxidation, which exhibited the highest selectivity of benzaldehyde and the benzoquinone yield at the bias of 2 V.
