以泡沫镍为基体,应用电化学沉积法制备Pd-Ir/Ni复合催化剂.由SEM、XPS分析样品的表面形态、组成以及各组分的价态.电化学测试表明该催化剂对H2O2电还原具有较高的催化性能,当过氧化氢的浓度为0.4 mol/L时,极限电流密度可超过318 mA/cm2.以纯铝或其合金作阳极、Pd-Ir/Ni作阴极组装Al-H2O2半燃料电池,得出其最大放电功率可达198 mW/cm2.
朱丁旺
,
陈丹丹
,
李必进
,
王贵领
,
曹殿学
. 泡沫镍负载Pd-Ir作为Al-H_2O_2半燃料阴极的研究[J]. 电化学, 2008
, 14(3)
: 292
-297
.
DOI: 10.61558/2993-074X.1909
The Pd-Ir/Ni electrodes were prepared by electrodeposition of Pd and Ir on the porous nickel foam surface.The structure,composition and state of the Pd-Ir catalyst were analyzed using SEM and XPS.The catalytic performance of Pd-Ir/Ni for H2O2 electroveduction at different concentrations of H2O2 were investigated.A limiting current density of 318 mA/cm2 was obtained with 0.4 mol/L H2O2.The aluminum-hydrogen peroxide semi-fuel cells using different aluminum alloys as anode and Pd-Ir/Ni as cathode were assembled and tested.It was found that the fuel cell with aluminum-manganese alloy anode demonstrated a maximum power density of 198mW/cm2 at 234mA/cm2.
[1]HasvoldΦ,Johansen K H.The alkaline aluminium/hy-drogen peroxide power source in the huginⅡautono-mous underwater vehicle[J].J Power Sources,1999,80:254-260.
[2]Shen P K,Tseung AC C,Kuo C.Development of an a-luminium/sea water battery for subsea applications[J].J Power Sources,1994,47:119-127.
[3]HasvoldΦ.Battery system:US,6573008[P].2003.
[4]HasvoldΦ,Storkersen N J,Forseth S,et al.Powersources for autonomous underwater vehicles[J].J Pow-er Sources,2006,162:935-942.
[5]HasvoldΦ,Storkersen N J.Electrochemical powersources for unmanned underwater vehicles used in deepsea survey operations[J].J Power Sources,2001,96(1):252-258.
[6]Li Q F,Bjerrum N J.Aluminum as anode for energystorage and conversiona review[J].J Power Sources,2002,110:1-10.
[7]Medeiros M G,Bessette R R,Deschenes C M,et al.Magnesium-solution phase catholyte semi-fuel cell forundersea vehicles[J].J Power Sources,2002,110:1-10.
[8]Yang Wei Qian(杨维谦),Yang Shao Hua(杨少华),Sun Wei(孙伟),et al.Nano-structured palladium-sil-ver coated nickel foam cathode for magnesium-hydrogen[J].Electrochimica Acta,2006,52:9-14.
[9]Raman R K,Prashant S K,Shukla A K.A.28-W port-able direct borohydride-hydrogen peroxide fuel-cellstack[J].J Power Sources,2006,162:1073-1076.
[10]Bessette R R,Cichon J M,Dischert D W,et al.Astudy of cathode catalysis for the aluminium-hydrogenperoxide semi-fuel cell[J].J Power Sources,1999,80:248-253.
[11]Bessette R R,Medeiros MG,Patrissi C J,et al.De-velopment and characterization of a novel carbon fiberbased cathode for semi-fuel cell applications[J].JPower Sources,2001,96:240-244.
[12]Yang Wei Qian(杨维谦),Yang Shao Hua(杨少华),Sun Wei(孙伟),et al.Nanostructured silver cata-lyzed nickel foam cathode for an aluminum-hydrogenperoxide fuel cell[J].J Power Sources,2006,160(2):1420-1424.
[13]Raman R K,Shukla A A K.Electro-reduction of hy-drogen peroxide on iron tetramethoxy phenyl porphyrinand lead sulfate electrodes with application in directborohydride fuel cells[J].J Appl Electrochem,2005,35:1157-1161.
[14]Dias V L N,Fernandes E N,Dasilva L M S,et al.Electrochemical reduction of oxygen and hydrogen per-oxide catalyzed by a surface copper(II)-2,4,6-tris(2-piridil)-1,3,5-triazine complex adsorbed on a graphiteelectrode[J].J Power Sources,2005,142:10-17.
[15]Xie Xian Yu(谢先宇),Ma Zi Feng(马紫峰),MaXiao Xia(麻晓霞),et al.Effect of pretreatment ofparbon supports on activity of CoTMPP electrocatalystsfor the reduction of oxygen[J].Chin J Inorg Chem(inChinese),2007,23(1):35-39.
[16]Dow E G,Bessette R R,Seeback G L,et al.En-hanced electrochemical performance in the develop-ment of the aluminum/hydrogen peroxide semi-fuelcell[J].J Power Sources,1997,65:207-212.
[17]Doche ML,Novel-Cattin F,Durand R,et al.Charac-terization of different grades of aluminum anodes for a-luminum/air batteries[J].J Power Sources,1997,65:197-205.