通过交流伏安法,发现碱性体系中镍电极在很负的电位下有非常规的法拉第电流响应.根据金属水合氧化物催化理论,电流响应是由镍表面缺陷处原子氧化成镍的水合氧化物引起的,由于其起始电位与次亚磷酸根氧化的起始电位相同,所以认为镍的水合氧化物是催化次亚磷酸根氧化的真正物种.
参考文献
| [1] | JUSYS Z .The Catalytic Oxidation of Hypophosphite on Nickel Studied by Electrochemical Mass Spectrometry[J].Journal of Electroanalytical Chemistry,1991,307(1/2):87-97. |
| [2] | MARSHALL J H .The Nickel Metal Catalyzed Decomposition of Aqueous Hypophosphite Solutions[J].Journal of the Electrochemical Society,1983,130(02):369-372. |
| [3] | 金莹,俞宏英,杨德钧,孙冬柏.金属催化化学沉积反应的电化学本质研究[J].稀有金属材料与工程,2010(08):1365-1369. |
| [4] | ABRANTES L M .In Situ IR Study of the Electrooxidation of Hypophosphite on a Polycrystalline Nickel Electrode[J].Journal of the Chemical Society,Faraday Transactions,1997,93(06):1119-1125. |
| [5] | 蒋太祥,吴辉煌.酸性溶液中NaH2PO2在铂电极上氧化的原位红外光谱研究[J].高等学校化学学报,2003(08):1464-1467. |
| [6] | BURKE L D .The Importance of Superficial (Adatom)Surface Oxidation in the Electrocatalytic Behaviour of Noble Metals in Aqueous Media[J].Journal of Applied Electrochemistry,1989,19(05):758-767. |
| [7] | Laurence D. Burke .Scope for New Applications for Gold Arising from the Electrocatalytic Behaviour of its Metastable Surface States[J].Gold Bulletin,2004(1/2):125-135. |
| [8] | Joaqun Rodrguez-Lpez;Mario A. Alpuche-Avils;Allen J. Bard .Interrogation of Surfaces for the Quantification of Adsorbed Species on Electrodes: Oxygen on Gold and Platinum in Neutral Media[J].Journal of the American Chemical Society,2008(50):16985-16995. |
| [9] | L D Burke;A J Ahern;A P O'Mullane .High Energy States of Gold and their Importance in Electrocatalytic Processes at Surfaces and Interfaces[J].Gold Bulletin,2002(1):3-10. |
| [10] | Nagle, L.C.;Burke, L.D. .Anomalous electrochemical behaviour of palladium in base[J].Journal of solid state electrochemistry,2010(8):1465-1479. |
| [11] | BOND A M .Changing the Look of Vohammetry[J].Analytical Chemistry,2005,77(09):186A-195A. |
| [12] | Lertanantawong B;O'Mullane AP;Surareungchai W;Somasundrum M;Burke LD;Bond AM .Study of the underlying electrochemistry of polycrystalline gold electrodes in aqueous solution and electrocatalysis by large amplitude Fourier transformed alternating current voltammetry[J].Langmuir: The ACS Journal of Surfaces and Colloids,2008(6):2856-2868. |
| [13] | Shiddiky, M.J.A.;O'Mullane, A.P.;Zhang, J.;Burke, L.D.;Bond, A.M. .Large amplitude fourier transformed AC voltammetric investigation of the active state electrochemistry of a copper/aqueous base interface and implications for electrocatalysis[J].Langmuir: The ACS Journal of Surfaces and Colloids,2011(16):10302-10311. |
| [14] | BURKE L D .A Study of the Electrocatalytic Behaviour of Gold in Acid Using Ac Voltammetry[J].Electrochimica Acta,1992,37(11):2087-2094. |
| [15] | BURKE L D .A Study of the Electrocatalytic Behaviour of Gold in Base Using Ac Voltammetry[J].Electrochimica Acta,1992,37(04):585-594. |
| [16] | BURKE L D .An Investigation of Some Electrocatalytic Processes Occurring at Low Potentials at a Nickel Elec trode in Base[J].Journal of the Electrochemical Society,1991,138(09):2496-2504. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%