@article{209d904ed31445449549119eaa60d631,
title = "In-situ synthesis of freestanding porous SnOx-decorated Ni3Sn2 composites with enhanced Li storage properties",
abstract = "In this paper, novel freestanding 3D hierarchical porous SnOx-decorated Ni3Sn2 (3D-HP SnOx@Ni3Sn2) composites are synthesized facilely by two-step chemical dealloying of designed as-cast Sn-45 at.% Ni alloy in different corrosive solutions. The results show that the 3D-HP SnOx@Ni3Sn2 composites have a typical bimodal pore size distribution composed of a micron-sized ligament-channel structure with highly nanoporous channel walls built by ultrafine SnOx (x = 1, 2) nanoparticles (3–6 nm). The unique 3D-HP composites as a binder-free integrated anode for lithium ion batteries (LIBs) display a significantly improved Li storage performance with first reversible capacity of 2.68 mAh cm−2 and good cycling stability with 85.1% capacity retention and over 98.4% coulombic efficiency after 100 cycles (just 0.004 mAh cm2 per cycle for capacity fading). This can be mainly ascribed to the synergistic effect between chemically inert 3D microporous Ni3Sn2 substrate with robust mechanical stress buffer and good transfer mass channels and in-situ growth of nanoporous SnOx with large specific surface areas and high electrochemical active sites. We believe that the present work can offer a promising anode candidate toward advanced LIBs.",
keywords = "Anode, Dealloying, Hierarchical porous structure, Lithium ion battery, Sn-Ni alloy",
author = "Wenbo Liu and Xue Chen and Jizhou Zhang and Shichao Zhang and Sanqiang Shi",
note = "Funding Information: We give thanks to financial support by the National Natural Science Foundation of China (52075351, 51604177), the National Key Research and Development Program of China (2019YFA0705701), the Research Grants Council of the Hong Kong Special Administrative Region, China (GRF PolyU152174/17E), the International S&T Innovation Cooperation Program of Sichuan Province (2020YFH0039), the Chengdu International S&T Cooperation Funded Project (2019-GH02-00015-HZ, 2020-GH02-00006-HZ), the ?1000 Talents Plan? of Sichuan Province, the Experimental Technology Project of Sichuan University (20200080), and the Talent Introduction Program of Sichuan University (YJ201410). Additionally, the authors specially thank Dr. Shanling Wang (Analytical & Testing Center, Sichuan University) for help in TEM characterization. Funding Information: We give thanks to financial support by the National Natural Science Foundation of China ( 52075351 , 51604177 ), the National Key Research and Development Program of China ( 2019YFA0705701 ), the Research Grants Council of the Hong Kong Special Administrative Region , China ( GRF PolyU152174/17E ), the International S&T Innovation Cooperation Program of Sichuan Province ( 2020YFH0039 ), the Chengdu International S&T Cooperation Funded Project ( 2019-GH02-00015-HZ , 2020-GH02-00006-HZ ), the “1000 Talents Plan” of Sichuan Province, the Experimental Technology Project of Sichuan University ( 20200080 ), and the Talent Introduction Program of Sichuan University ( YJ201410 ). Additionally, the authors specially thank Dr. Shanling Wang (Analytical & Testing Center, Sichuan University) for help in TEM characterization. Publisher Copyright: {\textcopyright} 2021 Elsevier B.V. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.",
year = "2021",
month = may,
day = "15",
doi = "10.1016/j.cej.2021.128591",
language = "English",
volume = "412",
journal = "Chemical Engineering Journal",
issn = "1385-8947",
publisher = "Elsevier",
}