Double-Helix Structure in Carrageenan-Metal Hydrogels: A General Approach to Porous Metal Sulfides/Carbon Aerogels with Excellent Sodium-Ion Storage

Daohao Li; Dongjiang Yang; Xianfeng Yang; Yu Wang; Ziqi Guo; Yanzhi Xia; Shenglei Sun; Shaojun Guo

doi:10.1002/anie.201610301

Double-Helix Structure in Carrageenan-Metal Hydrogels: A General Approach to Porous Metal Sulfides/Carbon Aerogels with Excellent Sodium-Ion Storage

Angew Chem Int Ed Engl. 2016 Dec 19;55(51):15925-15928. doi: 10.1002/anie.201610301. Epub 2016 Nov 23.

Authors

Daohao Li¹, Dongjiang Yang¹, Xianfeng Yang², Yu Wang¹, Ziqi Guo³, Yanzhi Xia¹, Shenglei Sun¹, Shaojun Guo⁴

Affiliations

¹ Collaborative Innovation Center for Marine Biomass Fibers Materials and Textiles of Shandong Province, Institute of Marine Biobased Materials, School of Environmental Science and Engineering, Qingdao University, Qingdao, 266071, P.R. China.
² Analytical and Testing Centre, South China University of Technology, Guangzhou, 510640, China.
³ College of Science, China University of Petroleum, Qingdao, 266580, P.R. China.
⁴ Department of Materials Science and Engineering, The Beijing Innovation Center for Engineering Science and Advanced Technology, Key Laboratory of Theory and Technology of Advanced Batteries Materials, Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing, 100871, China.

PMID: 27879049
DOI: 10.1002/anie.201610301

Abstract

The metal sulfide-carbon nanocomposite is a new class of anode material for sodium ion batteries, but its development is restricted by its relative poor rate ability and cyclic stability. Herein, we report the use of double-helix structure of carrageenan-metal hydrogels for the synthesis of 3D metal sulfide (M_x S_y ) nanostructure/carbon aerogels (CAs) for high-performance sodium-ion storage. The method is unique, and can be used to make multiple M_x S_y /CAs (such as FeS/CA, Co₉ S₈ /CA, Ni₃ S₄ /CA, CuS/CA, ZnS/CA, and CdS/CA) with ultra-small nanoparticles and hierarchical porous structure by pyrolyzing the carrageenan-metal hydrogels. The as-prepared FeS/CA exhibits a high reversible capacity and excellent cycling stability (280 mA h^-1 at 0.5 A g^-1 over 200 cycles) and rate performance (222 mA h^-1 at 5 A g^-1 ) when used as the anode material for sodium-ion batteries. The work shows the value of biomass-derived metal sulfide-carbon heterostuctures in sodium-ion storage.

Keywords: aerogel; carrageenan; double-helix structure; metal sulfides; sodium-ion batteries.

Publication types

Research Support, Non-U.S. Gov't