A comparison of the electrochemical performance of noble metal, sp²- and sp³-carbon electrodes towards the reduction of concentrated hypochlorite (ClO⁻; 0.02 M–1.88 M), an alkaline (pH ~ 13) and chemically oxidising solution, is presented. Boron-doped diamond (BDD) gave no discernible electrochemical response whilst all other electrodes showed an electrochemically irreversible cathodic response in the following order (most facile electron transfer): Pt > Au > edge-plane pyrolytic graphite (EPPG) ≈ sp²-carbon containing BDD > basal plane pyrolytic graphite > glassy carbon ≈ highly-ordered pyrolytic graphite. Reduction at sp²-BDD occurred at a similar potential to EPPG, but with much lower currents, suggesting edge-plane-like sites are the active sp² sites in this sp²-BDD, but at much lower surface coverage than in EPPG. Finally, both EPPG and sp²-BDD showed linear current versus [ClO⁻] responses over the concentration range 0.02 M–1.41 M (R² > 0.995).

贵金属的电化学性能的比较，SP ² -和SP ^3个碳上向浓的次氯酸盐的还原电极（CLO ^- 0.02 M-1.88 M），碱性（pH约13）和化学氧化溶液中，呈现。硼掺杂的金刚石（BDD），得到没有明显的电化学反应，而所有其它电极显示出在以下顺序的电化学可逆反应的阴极（最容易的电子转移）：铂>金>缘面内的热解石墨（EPPG）≈SP ²碳上包含BDD>基面热解石墨>玻碳≈高阶热解石墨。在sp ²处减少-BDD的电势与EPPG相似，但电流要低得多，这表明边缘平面样位点是该sp ² -BDD中的活性sp ²位点，但表面覆盖率却比EPPG低。最后，EPPG和SP二者² -BDD显示与[CLO线性电流^- ]在浓度范围0.02 M-1.41 M（响应- [R ²  > 0.995）。