【簡介】
通過向Ni—W合金鍍液中添加Zr02納米微粒,制備了Ni-W/Zr02納米復合電極,并采用電化學方法研究了納米復合電極在30%NaOH溶液中的析氫催化性能。陰極析氫極化曲線與表觀活化自由能的測試表明, Ni—W/Zr02納米復合電極在NaOH溶液中的催化析氫.活性高于Ni—W合金電極;提高NaOH溶液的溫度,可降低Ni—W/Zr02納米復合電極的析氫過電位,提高電極析氫的電催化活性;掃描電鏡的表面形貌照片顯示,Zr02納米微粒的加入使復合鍍層的表面得到細化,真實表面積增大,有利于氫的析出。Ni-W/Zr02納米復合電極作為析氫電極,具有高的催化活性和電化學穩(wěn)定性,有一定的工業(yè)應用前景。
參考文獻:
[1] BIRRY L,LASIA A Studies ofthe hydrogen evolution reaction on Raney nickel-molybdenum electrodes[J]Journal of Applied Electrochemistry, 2004,34(7):735—749.
[2] HUANG L,YANG F Z,SUN S G,et al.Studies on structure and electrocatalytic hydrogen evolution of nanocrystalline Ni—Mo__Fe alloy electrodeposit electrodes[J].Chinese Journal of Chemistry,2003,21(4): 382—386.
[3] MEGURO S,SASAKI T,KATAGIRI H,et al.Electrodeposited Ni-Fe-:C cathodes for hydrogen evolution[J].Journal of the Electrochemical Society,2000,147(8):3003.3009.
[4] HAN Q,LIU K R,CHEN J S,et al.A study on the electrodeposited Ni-S alloys as hydrogen evolution reaction cathodes(J].International Journal of Hydrogen Energy,2003,28(1 1):1207—1212.
[5] HAN Q,CHEN J S,LIU K R,et al.The heat.treatment effect of amorphous Ni—S(La)electrode on the hydrogen evolution reaction in an alkaline media[J]International Journal ofHydrogen Energy,2004,29(6): 597—603.
[6] HE H W,LIU H J,LIU F,et al Distribution of sulphur and electrochemical properties of nickel sulphur coatings electrodeposited on the nickel foam as hydrogen evolution reaction cathodes[J].Materials Leners,2005,59(29/30):3968.3972.
[7] SHI Y L,YANG Z,LI M K et al.Electroplated synthesis of Ni-P-UFD. Ni-P一2NTs,and Ni-P—UFDA2NTs composite coatings as hydrogen evolution electrodes[J]Materials Chemistry and Physics,2004,87(1): 154—161.
[8] WU G,LI N,DAI C S,et al.Electrochemical preparation and characteristics of Ni—Co-LaNi5 composite coatings as electrode materials for hydrogen evolution[J]Materials Chemistry and Physics,2004,83(2): 307.3 14.
[9] LOSIEWICZ B,BUDNIOK A,LASIA A,et al.Composite Ni—P+Ti02 electrocoatings for hydrogen evolution reaction in alkaline solutions[J]. Polish Journal ofChemistry,2004,78(9):1457—1476.
[10] LOSIEWlCZ B,BUDNIOK A,ROWINSKI E.et al.Effect of heat. treatment on the mechanism and kinetics Of the hydrogen evolution mac"lion on Ni-P+Ti02+Ti electrodes叨.Journal ofApplied Electrochemistry, 2004,34(5):507—516.
[11] 武剛,李寧,周德瑞.Ni一20--LaNi5復合電極材料在堿性介質(zhì)中的電催化析氫性能[J].無機化學學報,2003,19(7):739—744.
[12] 朱龍章,陳宇飛,張慶元.(Ni—co)—wC復合電極的析氫催化性能[J].應用化學,1999,16(4):52.54.
[13] 鄒勇進,肖作安,費錫明.電沉積Co-Ni—W合金電極在堿性溶液中的析氫電催化活性[J].稀有金屬,2004,28(5):954.957.
[編輯:韋風仙]
鎳-鎢/二氧化鋯納米復合電極析氫性能的研究:結果與討論(一)
鎳-鎢/二氧化鋯納米復合電極析氫性能的研究:結果與討論(二)
鎳-鎢/二氧化鋯納米復合電極析氫性能的研究:結果與討論(三)
鎳-鎢/二氧化鋯納米復合電極析氫性能的研究:結果與討論(四)
鎳-鎢/二氧化鋯納米復合電極析氫性能的研究:結果與討論(五)










