A novel self-assembly approach for synthesizing nanofiber aerogel supported platinum single atoms

doi:10.1039/d0ta03207g

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	A novel self-assembly approach for synthesizing nanofiber aerogel supported platinum single atoms
	Zhang, HJ ; Zhao, YH ; Sun, Y ; Xu, Q ; Yang, RO ; Zhang, H ; Lin, C ; Kato, K ; Li, XP ; Yamauchi, M
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2020
卷号	8 期号:30 页码:15094-15102
关键词	OXYGEN REDUCTION REACTION TOTAL-ENERGY CALCULATIONS WATER OXIDATION METAL NANOWIRES OXIDE CATALYST GROWTH NANOPARTICLES CONDUCTORS
ISSN号	2050-7488
DOI	10.1039/d0ta03207g
文献子类	期刊论文
英文摘要	A great challenge in catalyst engineering is precisely assembling and positioning nanoscale active metals at desired locations while constructing robust functional architectures. This article presents a novel approach for constructing macroscopic Ag-doped manganese oxide aerogels (up to 2 L) while homogeneously incorporating active Pt single atoms (Pt/Ag-MnO2) based on a solution-solid-solid (SSS) mechanism. AgO(x)seeds were identified as key species for triggering the octopus-like growth of MnO(2)nanofibers and inserting Ag and Pt into the MnO(2)crystalline framework. The interconnection and entanglement among nanofibers allowed the formation of mechanically strengthened hierarchical structures, leading to one of the most robust manganese-based aerogels to date. Impressively, the Pt/Ag-MnO(2)aerogel also possessed promising selectivity and stability toward the electrocatalytic oxygen reduction reaction, with Pt showing a high mass activity of 1.6 A/(mg(Pt)) at 0.9 Vvs.RHE. Experimental characterization and theoretical calculation confirmed Pt single atoms to be located at substitutional lattice sites, which reduced the overall oxygen reduction barriers. Our approach suggests that SSS or other analogous nanofiber or nanowire growth strategies are powerful in controlling structural formation over the entire range of length scales while being applicable to fabricating single-atom catalysts.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/32685]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.RIKEN SPring 8 Ctr, 1-1-1 Kouto, Sayo, Hyogo 6795148, Japan 2.Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2 CNER, Nishi Ku, Motooka 744, Fukuoka 8190395, Japan 3.Chinese Acad Sci, Shanghai Inst Appl Phys, 2019 Jia Luo Rd, Shanghai 201800, Peoples R China 4.Tohoku Univ, Adv Inst Mat Res AIMR, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan 5.Donghua Univ, State Key Lab Modificat Chem Fibers Polymer Mat, 299-9 North Renmin Rd, Shanghai 201620, Peoples R China 6.Donghua Univ, Coll Mat Sci & Engn, 299-9 North Renmin Rd, Shanghai 201620, Peoples R China 7.Chinese Acad Sci, Shanghai Adv Res Inst SARI, CAS Key Lab Low Carbon Convers Sci & Engn, 100 Haike Rd, Shanghai 201210, Peoples R China 8.Hokkaido Univ, Inst Adv Higher Educ, Kita Ku, North 10 West 8, Sapporo, Hokkaido 0600817, Japan 9.Chinese Acad Sci, Shanghai Adv Res Inst SARI, Zhangjiang Lab, Shanghai Synchrotron Radiat Facil, 239 Zhangheng Rd, Shanghai 201203, Peoples R China
推荐引用方式 GB/T 7714	Zhang, HJ,Zhao, YH,Sun, Y,et al. A novel self-assembly approach for synthesizing nanofiber aerogel supported platinum single atoms[J]. JOURNAL OF MATERIALS CHEMISTRY A,2020,8(30):15094-15102.
APA	Zhang, HJ.,Zhao, YH.,Sun, Y.,Xu, Q.,Yang, RO.,...&Jiang, Z.(2020).A novel self-assembly approach for synthesizing nanofiber aerogel supported platinum single atoms.JOURNAL OF MATERIALS CHEMISTRY A,8(30),15094-15102.
MLA	Zhang, HJ,et al."A novel self-assembly approach for synthesizing nanofiber aerogel supported platinum single atoms".JOURNAL OF MATERIALS CHEMISTRY A 8.30(2020):15094-15102.