Skip to main content
placeholder image

Biomass-mediated synthesis of carbon-supported nanostructured metal sulfides for ultra-high performance lithium-ion batteries

Journal Article


Abstract


  • A bio-inspired, environmentally friendly route to prepare three-dimensional (3D) hybrid nanostructured materials for lithium-ion batteries (LIBs) is presented. Alginate, a naturally occurring biopolymer, was employed as a template to synthesize molybdenum sulfide (MoS2) nanostructures from ammonium heptamolybdate and l-cysteine precursors under physiological conditions. Here we show that MoS2 precursors did not interact specifically with alginate; instead, MoS2 nanocrystallites were precipitated within a porous alginate matrix made up of hollow nanospheres. In contrast, when cobalt (Co2+) was added to crosslinked alginate mixed with ammonium heptamolybdate and l-cysteine precursors, a highly crosslinked hydrogel network was obtained instead. Upon annealing, CoMoS3.13 nanocrystallites were found to be well-dispersed within a 3D porous carbon matrix (CoMoS3.13@ADC, ADC represents alginate derived carbon). The novel CoMoS3.13@ADC hybrid materials were evaluated as anodes in lithium ion batteries, and were found to have exceptional capability performance, excellent cycle stability and rate performance. The lithiation mechanisms of CoMoS3.13@ADC were proposed; the shortened ion transport paths and rapid reaction kinetics were due to the nano-sized CoMoS3.13 crystals and inter-connected 3D porous structure. In summary, we showed that alginate biopolymers could offer a facile route towards the synthesis of novel 3D metal sulfide hybrid nanomaterials for energy storage applications.

Authors


  •   Lu, Yan
  •   Fong, Eileen (external author)

Publication Date


  • 2016

Citation


  • Lu, Y. & Fong, E. (2016). Biomass-mediated synthesis of carbon-supported nanostructured metal sulfides for ultra-high performance lithium-ion batteries. Journal of Materials Chemistry A, 4 (7), 2738-2745.

Scopus Eid


  • 2-s2.0-84958056420

Number Of Pages


  • 7

Start Page


  • 2738

End Page


  • 2745

Volume


  • 4

Issue


  • 7

Place Of Publication


  • United Kingdom

Abstract


  • A bio-inspired, environmentally friendly route to prepare three-dimensional (3D) hybrid nanostructured materials for lithium-ion batteries (LIBs) is presented. Alginate, a naturally occurring biopolymer, was employed as a template to synthesize molybdenum sulfide (MoS2) nanostructures from ammonium heptamolybdate and l-cysteine precursors under physiological conditions. Here we show that MoS2 precursors did not interact specifically with alginate; instead, MoS2 nanocrystallites were precipitated within a porous alginate matrix made up of hollow nanospheres. In contrast, when cobalt (Co2+) was added to crosslinked alginate mixed with ammonium heptamolybdate and l-cysteine precursors, a highly crosslinked hydrogel network was obtained instead. Upon annealing, CoMoS3.13 nanocrystallites were found to be well-dispersed within a 3D porous carbon matrix (CoMoS3.13@ADC, ADC represents alginate derived carbon). The novel CoMoS3.13@ADC hybrid materials were evaluated as anodes in lithium ion batteries, and were found to have exceptional capability performance, excellent cycle stability and rate performance. The lithiation mechanisms of CoMoS3.13@ADC were proposed; the shortened ion transport paths and rapid reaction kinetics were due to the nano-sized CoMoS3.13 crystals and inter-connected 3D porous structure. In summary, we showed that alginate biopolymers could offer a facile route towards the synthesis of novel 3D metal sulfide hybrid nanomaterials for energy storage applications.

Authors


  •   Lu, Yan
  •   Fong, Eileen (external author)

Publication Date


  • 2016

Citation


  • Lu, Y. & Fong, E. (2016). Biomass-mediated synthesis of carbon-supported nanostructured metal sulfides for ultra-high performance lithium-ion batteries. Journal of Materials Chemistry A, 4 (7), 2738-2745.

Scopus Eid


  • 2-s2.0-84958056420

Number Of Pages


  • 7

Start Page


  • 2738

End Page


  • 2745

Volume


  • 4

Issue


  • 7

Place Of Publication


  • United Kingdom