燃料电池铂基核壳结构催化剂性能提升策略
收稿日期: 2022-02-12
网络出版日期: 2022-11-23
基金资助
国家自然科学基金项目(22171217)
Strategy to improve catalytic performance of Pt-based core-shell catalysts for fuel cells
Received date: 2022-02-12
Online published: 2022-11-23
开发高活性、长寿命的铂纳米催化剂是能源催化领域中一项迫在眉睫的研究任务。核壳型铂催化剂能提高铂原子的利用率，为实现上述目标提供了重要途径。核壳型铂催化剂的催化活性对晶格应变高度敏感，稳定性则与核壳界面作用紧密相关。然而，铂晶格应变的精准调控方法极度缺乏，导致其催化活性难以通过晶格应变实现最优化；而现有的核壳界面构建方式难以在铂原子利用率最大化的情况下实现催化剂的优异稳定性。发展高效的应变调控方法及核壳强界面作用是实现核壳型铂纳米催化剂实际应用的关键。围绕厚度调节、形貌控制、应变调控3个方面阐述了核壳结构铂基催化剂性能的提升策略，为高效燃料电池催化剂的开发提供指导。
郑杨子 , 金明尚 . 燃料电池铂基核壳结构催化剂性能提升策略[J]. 无机盐工业, 2022 , 54(11) : 1 -7 . DOI: 10.19964/j.issn.1006-4990.2022-0236
The development of highly active and long life Pt-based nanocatalysts is an urgent research task in the field of energy catalysis.Core-shell structured Pt catalysts can improve the utilization rate of Pt atom，which provides an effective route to achieve the above goal.The catalytic activity of Pt-based core-shell nanocatalysts is highly sensitive to the lattice strain，while the stability is closely related to the interaction of the core-shell interface.However，it is extremely difficult to manipulate the lattice strain of Pt shells in a controllable manner，making it difficult to optimize the catalytic activity through manipulating lattice strain.The existing approaches for preparing Pt-based core-shell nanocatalysts are difficult to accomplish good stability of the catalysts while maximizing the utilization of Pt metal.Approaches that can tune strains in a systematic way and construct strong interactions between core and Pt shell are the key to realize the practical application of Pt-based core-shell nanocatalysts.The strategy for improving the performance of Pt-based core-shell nanocatalysts was discussed，including shell thickness adjustment，morphology control，and strain manipulation.This work would provide guidance for the development of highly efficient fuel cell catalysts.
Key words： fuel cell; core-shell structure; platinum; electrocatalysis; activity; stability
| 1 | LI Wei, WANG Dongdong, ZHANG Yiqiong, et al.Defect engineering for fuel-cell electrocatalysts[J].Advanced Materials,2020,32(19).Doi:10.1002/adma.201907879. |
| 2 | THOMPSON S T, JAMES B D, HUYA-KOUADIO J M, et al.Direct hydrogen fuel cell electric vehicle cost analysis：System and high-volume manufacturing description，validation，and outlook[J].Journal of Power Sources,2018,399: 304-313. |
| 3 | JIAO Kui, XUAN Jin, DU Qing, et al.Designing the next generation of proton-exchange membrane fuel cells[J].Nature,2021,595(7867):361-369. |
| 4 | HAIDER R, WEN Yichan, MA Zifeng, et al.High temperature proton exchange membrane fuel cells：Progress in advanced materials and key technologies[J].Chemical Society Reviews,2021,50(2):1138-1187. |
| 5 | LEE S, JANG J H, JANG I, et al.Development of robust Pt shell through organic hydride donor in PtCo@Pt core-shell electrocatalysts for highly stable proton exchange membrane fuel cells[J].Journal of Catalysis,2019,379: 112-120. |
| 6 | LIU Meiling, ZHAO Zipeng, DUAN Xiangfeng, et al.Nanoscale structure design for high-performance Pt-based ORR catalysts[J].Advanced Materials,2019,31(6).Doi:10.1002/adma.201802234. |
| 7 | WANG Yao, WANG Dingsheng, LI Yadong.A fundamental comprehension and recent progress in advanced Pt-based ORR nanocatalysts[J].SmartMat,2021,2(1):56-75. |
| 8 | LIU Mingkai, Zhiheng LYU, ZHANG Yu, et al.Twin-directed deposition of Pt on Pd icosahedral nanocrystals for catalysts with enhanced activity and durability toward oxygen reduction[J].Nano Letters,2021,21(5):2248-2254. |
| 9 | NESSELBERGER M, ASHTON S, MEIER J C, et al.The particle size effect on the oxygen reduction reaction activity of Pt catalysts：Influence of electrolyte and relation to single crystal models[J].Journal of the American Chemical Society,2011,133(43):17428-17433. |
| 10 | XIE Shuifen, CHOI S I, LU Ning, et al.Atomic layer-by-layer deposition of Pt on Pd nanocubes for catalysts with enhanced activi-ty and durability toward oxygen reduction[J].Nano Letters,2014,4,14(6):3570-3576. |
| 11 | HE Tianou, WANG Weicong, YANG Xiaolong, et al.Deposition of atomically thin Pt shells on amorphous palladium phosphide cores for enhancing the electrocatalytic durability[J].ACS Nano,2021,15(4):7348-7356. |
| 12 | FAN Fengru, LIU Deyu, WU Yuanfei, et al.Epitaxial growth of heterogeneous metal nanocrystals：From gold nano-octahedra to palladium and silver nanocubes[J].Journal of the American Che- mical Society,2008,130(22):6949-6951. |
| 13 | XIONG Y, XIA Y.Shape-controlled synthesis of metal nanostructures：The case of palladium[J].Advanced Materials,2007,19(20):3385-3391. |
| 14 | XIONG Yujie, WILEY B, XIA Younan.Nanocrystals with unconventional shapes：A class of promising catalysts[J].Angewandte Chemie International Edition,2007,46(38):7157-7159. |
| 15 | TIAN Na, ZHOU Zhiyou, SUN Shigang, et al.Synthesis of tetrahexahedral platinum nanocrystals with high-index facets and high electro-oxidation activity[J].ChemInform,2007,38(31).Doi:10.1002/chin.200731015. |
| 16 | MA Yanyun, KUANG Qin, JIANG Zhiyuan, et al.Synthesis of tri-soctahedral gold nanocrystals with exposed high-index facets by a facile chemical method[J].Angewandte Chemie International Edition,2008,47(46):8901-8904. |
| 17 | WANG Chao, DAIMON H, LEE Y, et al.Synthesis of monodisperse Pt nanocubes and their enhanced catalysis for oxygen reduction[J].Journal of the American Chemical Society,2007, |
| 17 | 129(22):6974-6975. |
| 18 | WANG Xue, VARA M, LUO Ming, et al.Pd@Pt core-shell concave decahedra：A class of catalysts for the oxygen reduction reaction with enhanced activity and durability[J].Journal of the American Chemical Society,2015,137(47):15036-15042. |
| 19 | LI Xiang, CHEN Qiang, WANG Mengyue, et al.Coordination effect assisted synthesis of ultrathin Pt layers on second metal nanocrystals as efficient oxygen reduction electrocatalysts[J].Journal of Materials Chemistry A,2016,4(34):13033-13039. |
| 20 | STAMENKOVIC V R, FOWLER B, MUN B S, et al.Improved oxygen reduction activity on Pt3Ni（Ⅲ） via increased surface site availability[J].Science,2007,315(5811):493-497. |
| 21 | WANG Weicong, LI Xiang, HE Tianou, et al.Engineering surface structure of Pt nanoshells on Pd nanocubes to preferentially expose active surfaces for ORR by manipulating the growth kineti- cs[J].Nano Letters,2019,19(3):1743-1748. |
| 22 | LI Xiang, LIU Yaming, BI Wei, et al.Lattice-mismatch-induced growth of ultrathin Pt shells with high-index facets for boosting oxygen reduction catalysis[J].Journal of Materials Chemistry A,2020,8(32):16477-16486. |
| 23 | XIA Zhonghong, GUO Shaojun.Strain engineering of metal-based nanomaterials for energy electrocatalysis[J].Chemical Society Re- views,2019,48(12):3265-3278. |
| 24 | BU Lingzheng, ZHANG Nan, GUO Shaojun, et al.Biaxially strain-ed PtPb/Pt core/shell nanoplate boosts oxygen reduction catalysis[J].Science,2016,354(6318):1410-1414. |
| 25 | HE Tianou, WANG Weicong, SHI Fenglei, et al.Mastering the surface strain of platinum catalysts for efficient electrocataly-sis[J].Nature,2021,598(7879):76-81. |
/
| 〈 |
|
〉 |
