化工学报
化工學報
화공학보
JOURNAL OF CHEMICAL INDUSY AND ENGINEERING (CHINA)
2014年
11期
4524-4529
,共6页
王宏智%黄波%张卫国%刘祥亭%姚素薇
王宏智%黃波%張衛國%劉祥亭%姚素薇
왕굉지%황파%장위국%류상정%요소미
深共融溶剂%电化学%Ni-Mo合金%催化%析氢反应
深共融溶劑%電化學%Ni-Mo閤金%催化%析氫反應
심공융용제%전화학%Ni-Mo합금%최화%석경반응
deep eutectic solvents%electrochemistry%Ni-Mo alloy%catalysis%hydrogen generation reaction
在深共融溶剂体系中电沉积制备了 Ni-Mo 合金。利用扫描电镜(SEM)、X 射线衍射仪(XRD)及电化学测试对Ni-Mo合金形貌、结构及性能进行了表征。SEM、XRD测试结果表明,Ni-Mo合金为纳米晶结构,平均晶粒尺寸约为2.2 nm;镀层表面微观粗糙度较大,Mo的质量分数约为5%。阴极极化曲线测试结果表明,当电流密度为0.1 A·cm-2时,深共融溶剂中制备的Ni-Mo合金电极析氢电位比水溶液中制备的Ni-Mo合金电极正移约100 mV,相比纯Ni电极正移近250 mV。
在深共融溶劑體繫中電沉積製備瞭 Ni-Mo 閤金。利用掃描電鏡(SEM)、X 射線衍射儀(XRD)及電化學測試對Ni-Mo閤金形貌、結構及性能進行瞭錶徵。SEM、XRD測試結果錶明,Ni-Mo閤金為納米晶結構,平均晶粒呎吋約為2.2 nm;鍍層錶麵微觀粗糙度較大,Mo的質量分數約為5%。陰極極化麯線測試結果錶明,噹電流密度為0.1 A·cm-2時,深共融溶劑中製備的Ni-Mo閤金電極析氫電位比水溶液中製備的Ni-Mo閤金電極正移約100 mV,相比純Ni電極正移近250 mV。
재심공융용제체계중전침적제비료 Ni-Mo 합금。이용소묘전경(SEM)、X 사선연사의(XRD)급전화학측시대Ni-Mo합금형모、결구급성능진행료표정。SEM、XRD측시결과표명,Ni-Mo합금위납미정결구,평균정립척촌약위2.2 nm;도층표면미관조조도교대,Mo적질량분수약위5%。음겁겁화곡선측시결과표명,당전류밀도위0.1 A·cm-2시,심공융용제중제비적Ni-Mo합금전겁석경전위비수용액중제비적Ni-Mo합금전겁정이약100 mV,상비순Ni전겁정이근250 mV。
Ni-Mo alloys were electrodeposited in the deep eutectic solvent system. To obtain the information on deposit’s morphology, structure and hydrogen evolution activity, scanning electron microscopy (SEM),X-ray diffraction (XRD) and polarization curve test were used respectively. SEM images and XRD pattern showed that the prepared alloy had a nanocrystalline structure with average crystallites size of 2.2 nm. The deposit contained about 5% (mass) Mo and had a large roughness factor. Polarization curves indicated that hydrogen generation potential of Ni-Mo alloy deposited in ionic liquid had a positively shift of about 100 mV compared to Ni-Mo alloy deposited in aqueous solution and had a positive shift of about 250 mV compared to pure Ni electrode at current density of 0.1 A·cm2.