CAJ | 학술논문

以多孔钛粉末烧结板为基材，制得钛基β-PbO2微孔渗透电极并对其性能进行表征。主要制备步骤为盐酸侵蚀、热分解涂覆锑掺杂二氧化锡(ATO)中间层及电沉积β-PbO2层。结果表明，多孔钛板自身的粒子堆积结构和酸蚀后的蜂窝状结构为附着层提供了约0.53 m2/g的比表面积和有效的应力补偿。ATO能够以固溶体形式与钛基材紧密结合形成致密的保护层。所得钛基β-PbO2微孔渗透电极表面均匀致密，渗透性能良好。在0.5 mol/L硫酸溶液中，其析氧电位达1.85 V，电流密度4 A/cm2下的电极寿命超过38 h。
이다공태분말소결판위기재，제득태기β-PbO2미공삼투전겁병대기성능진행표정。주요제비보취위염산침식、열분해도복제참잡이양화석(ATO)중간층급전침적β-PbO2층。결과표명，다공태판자신적입자퇴적결구화산식후적봉와상결구위부착층제공료약0.53 m2/g적비표면적화유효적응력보상。ATO능구이고용체형식여태기재긴밀결합형성치밀적보호층。소득태기β-PbO2미공삼투전겁표면균균치밀，삼투성능량호。재0.5 mol/L류산용액중，기석양전위체1.85 V，전류밀도4 A/cm2하적전겁수명초과38 h。
A microporous permeable titanium-basedβ-PbO2 electrode was prepared using powder-sintered porous titanium plate as substrate through the following steps: (1) pickling with hydrochloric acid; (2) preparing an antimony-doped tin dioxide (ATO) intermediate layer by thermal decomposition; and (3) electrodepositing β-PbO2 coating. The properties of the electrode were characterized. The results showed that the packed structure of particles in porous titanium plate and the honeycomb-like structure after acid picking offer a specific area of 0.53 m2/g and effective stress compensation for adhesive layer. ATO can bond with titanium substrate closely in the form of solid solution, forming a protective layer. The permeable Ti-basedβ-PbO2 electrode features uniform and compact surface and good permeability, and has an oxygen evolution potential of 1.85 V and a service life of 38 h at a current density of 4 A/cm2 in 0.5 mol/L H2SO4 solution.