File(s) under permanent embargo
Neuron-inspired interpenetrative network composed of cobalt-phosphorus-derived nanoparticles embedded within porous carbon nanotubes for efficient hydrogen production
journal contribution
posted on 2016-07-01, 00:00 authored by J Shen, Z Yang, M Ge, P Li, H Nie, Qiran CaiQiran Cai, C Gu, K Yang, S HuangThe ongoing search for cheap and efficient hydrogen evolution reaction (HER) electrocatalysts to replace currently used catalysts based on Pt or its alloys has been considered as an prevalent strategy to produce renewable and clean hydrogen energy. Herein, inspired by the neuron structure in biological systems, we demonstrate a novel fabrication strategy via a simple two-step method for the synthesis of a neuronlike interpenetrative nanocomposite network of Co-P embedded in porous carbon nanotubes (NIN-Co-P/PCNTs). It is found that the interpenetrative network provides a natural transport path to accelerate the hydrogen production process. The embedded-type structure improves the utilization ratio of Co-P and the hollow, tubelike, and porous structure of PCNTs further promote charge and reactant transport. These factors allow the as-prepared NIN-Co-P/PCNTs to achieve a onset potential low to 43 mV, a Tafel slope as small as 40 mV/decade, an excellent stability, and a high turnover frequency value of 3.2 s(-1) at η = 0.2 V in acidic conditions. These encouraging properties derived from the neuronlike interpenetrative network structure might offer new inspiration for the preparation of more nanocomposites for applications in other catalytic and optoelectronic field.
History
Journal
ACS applied materials and interfacesVolume
8Issue
27Pagination
17284 - 17291Publisher
American Chemical SocietyLocation
Washington, D.C.Publisher DOI
ISSN
1944-8244eISSN
1944-8252Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2016, American Chemical SocietyUsage metrics
Categories
No categories selectedKeywords
carbon nanotubescobalt phosphoruselectrocatalystshydrogen evolution reactionneuronlikeScience & TechnologyTechnologyNanoscience & NanotechnologyMaterials Science, MultidisciplinaryScience & Technology - Other TopicsMaterials ScienceMOLYBDENUM SULFIDEEVOLUTION REACTIONWATER OXIDATIONELECTROCATALYSTNANOSTRUCTURESPERFORMANCENANORODSOXIDEPH
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC