CAJ | 학술논문

采用改性处理的聚丙烯腈基石墨毡和聚合物为基体的碳塑板制备得到了钒电池用一体化复合电极.研究表明,聚丙烯腈基石墨毡经过400～450℃、2 h的热处理和98%浓硫酸中浸泡6 h的酸处理后具有较好的催化活性.用以聚醋酸乙烯乳液占总原料的70%,而活性炭和石墨粉占30%(活性炭:石墨粉=1:1)的比例压制的碳塑板、改性处理后的石墨毡及不锈钢网组成一体化复合电极,循环伏安测试表明此一体化复合电极具有较好的电化学活性.
채용개성처리적취병희정기석묵전화취합물위기체적탄소판제비득도료범전지용일체화복합전겁.연구표명,취병희정기석묵전경과400～450℃、2 h적열처리화98%농류산중침포6 h적산처리후구유교호적최화활성.용이취작산을희유액점총원료적70%,이활성탄화석묵분점30%(활성탄:석묵분=1:1)적비례압제적탄소판、개성처리후적석묵전급불수강망조성일체화복합전겁,순배복안측시표명차일체화복합전겁구유교호적전화학활성.
In this paper,integral composite electrodes of vanadium redox flow battery were prepared using modified PAN-based graphite felt and carbon plastic plate with polymer matrix.It shows that PAN-based graphite felts heat-treated under 400-450 ℃ for 2 h and immersed in 98% concentrated sulfuric acid for 6 h have good catalytic activity.The carbon plastic plates were suppressed with the materials of polyvinyl acetate emulsion with the ratio of 70%,and the activated carbon and graphite powder with the ratio of 30% (activated carbon:graphite=1:1).The made integral composite electrodes were composed of the carbon plastic plates,modified graphite felts and stainless steel wire meshes.The cyclic voltammetry tests show that integral composite electrodes have good electrochemical activity.