石墨碳黑负载Pt-PbO_x的制备及氧还原催化性能研究
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摘要
氧气还原反应(Oxygen Reduction Reaction)是绝大部分燃料电池的阴极反应,往往比阳极氧化反应需要更多的催化剂来推动.本文利用一锅水热法制备石墨碳黑负载铂(Pt/GCB)催化剂,采用旋转搅拌合成Pt-PbO_x纳米复合材料,通过电化学性能测试发现所制备的Pt-PbO_x/GCB复合材料具有优异的ORR催化活性和电化学稳定性.
Oxygen reduction reaction is the cathodic reaction of most fuel cells. ORR catalysts are important parts in fuel cells because more need of catalysts should be satisfied. We developed a facile one-pot hydrothermal approach to synthetize the catalyst that is supported on graphitized carbon black. Nano composition of lead dioxide nanoparticles and platinum nanoparticles were prepared by mixing and stirring. The result of electrochemical testing reveals that the as-prepared Pt-PbO_x/GCB compounds have an excellent ORR catalytic performance and a long-term stability.
Oxygen reduction reaction is the cathodic reaction of most fuel cells. ORR catalysts are important parts in fuel cells because more need of catalysts should be satisfied. We developed a facile one-pot hydrothermal approach to synthetize the catalyst that is supported on graphitized carbon black. Nano composition of lead dioxide nanoparticles and platinum nanoparticles were prepared by mixing and stirring. The result of electrochemical testing reveals that the as-prepared Pt-PbO_x/GCB compounds have an excellent ORR catalytic performance and a long-term stability.
引文
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[2]DONG Y C,SUNG Y E.Electrocatalyst for the oxygen reduction reaction:from the nanoscale to the macroscale[J].Journal of Electrochemical Science and Technology,2014,5(3):65-72.
[3]CHIWATA M,KAKINUMA K,WAKISAKAM,et al.Oxygen reduction reaction activity and durability of Pt catalysts supported on titanium carbide[J].Catalysts,2015,5(2):966-980.
[4]ZHANG J,FENG A,BAI J,et al.One-pot synthesis of hierarchical flower-like Pd-Cu alloy support on graphene towards ethanol oxidation[J].Nanoscale Research Letters,2017,12(1):521-528.
[5]WU Z S,YANG S,YI S,et al.3D nitrogen-doped graphene aerogel-supported Fe3O4 nanoparticles as efficient electrocatalysts for the oxygen reduction reaction[J].Journal of the American Chemical Society,2012,134(22):9082-9085.
[6]YUAN W,LI J,WANG L,et al.Nanocomposite of N-doped Ti O2 nanorods and graphene as an effective electrocatalyst for the oxygen reduction reaction[J].ACS Applied Materials&Interfaces,2014,6(24):21978-21985.
[7]LIU Y,LI K,LIU Y,et al.The high-performance and mechanism of P-doped activated carbon as a catalyst for air-cathode microbial fuel cells[J].Journal of Materials Chemistry A,2015,3(42):21149-21158.
[8]CHEN Y,LIN B,WANG H,et al.Surface modification of g-C3N4,by hydrazine:Simple way for noble-metal free hydrogen evolution catalysts[J].Chemical Engineering Journal,2016,286:339-346.
[9]HUSSAIN S,ERIKSON H,KONGI N,et al.Heat-treatment effects on the ORR activity of Pt nanoparticles deposited on multi-walled carbon nanotubes using magnetron sputtering technique[J].International Journal of Hydrogen Energy,2017,42(9):5958-5970.
[10]GUO S,ZHAO S,GAO J,et al.Cu-CDots nanocorals as electrocatalyst for highly efficient CO2 reduction to formate[J].Nanoscale,2017,9(1):298-303.
[11]LIU J,JIAO M,LU L,et al.High performance platinum single atom electrocatalyst for oxygen reduction reaction[J].Nature Communications,2017,8:15938.
[12]NIE L,MEI D,XIONG H,et al.Activation of surface lattice oxygen in single-atom Pt/Ce O2 for low-temperature COoxidation[J].Science,2017,358:1419-1423.
[13]HUANG Y,HUANG H,GAO Q,et al.Electroless synthesis of two-dimensional sandwich-like Pt/Mn3O4/reduced-graphene-oxide nanocomposites with enhanced electrochemical performance for methanol oxidation[J].Electrochimica Acta,2014,149:34-41.
[14]LEI Y Z,ZHAO G H,ZHANG Y G,et al.Highly efficient and mild electrochemical incineration:mechanism and kinetic process of refractory aromatic hydrocarbon pollutants on superhydrophobic Pb O2 anode[J].Environmental Science&Technology,2010,44(20):7921-7927.
[15]ZHANG Y Y,LIN Y L.Elevated Pb(II)release from the reduction of Pb(IV)corrosion product Pb O2 induced by bromide-catalyzed monochloramine decomposition[J].Environmental Science&Technology,2013,47(19):10931-10938.
[16]谢天,王斌.二氧化铅电极制备方法综述[J].成都大学学报(自然科学版),2003,22(3):25-30.
[17]BUZZO G S,NIQUIRILO R V,SUFFREDINI H B.Active Pt-Pb Ox/C anodes to promote the formic acid oxidation in presence of sulfuric acid[J].Journal of the Brazilian Chemical Society,2010,21(1):185-190.
[18]ZHANG L F,ZHONG S L,XU A W.Highly branched concave Au/Pd bimetallic nanocrystals with superior electrocatalytic activity and highly efficient SERS enhancement[J].Angewandte Chemie International Edition,2013,52(2):645-649.
[20]GE X,YAN X,WANG R,et al.Tailoring the structure and property of Pt-decorated nanoporous gold by thermal annealing[J].Journal of Physical Chemistry C,2009,113(17):7379-7384.
[21]TERZI F,ZANARDI C,DAOLIO S,et al.Au/Pt nanoparticle systems in methanol and carbon mon-oxide electroxidation[J].Electrochimica Acta,2011,56(10):3673-3678.
[22]TANG W,JAYARAMANA S,JARAMILLO T F,et al.Electrocatalytic activity of gold-platinum clusters for low temperature fuel cell applications[J].Journal of Intercollegiate Sport,2009,383-390(2):227-242.
[23]XU C,WANG R,CHEN M,et al.Dealloying to nanoporous Au/Pt alloys and their structure sensitive electrocatalytic properties[J].Physical Chemistry Chemical Physics,2010,12(1):239-246.
[24]PFISTERER J,LIANG Y,SCHNEIDER O,et al.Direct instrumental identification of catalytically active surface sites[J].Nature,2017,549:74-77.
[25]CHEN G,XU C,HUANG X,et al.Interfacial electronic effects control the reaction selectivity of platinum catalysts[J].Nature Materials,2016,15(5):564-571.