Electrocatalytic Activity of a 2D Phosphorene-Based Heteroelectrocatalyst for Photoelectrochemical Cells

Munkhbayar Batmunkh, Aabhash Shrestha, Munkhjargal Bat-Erdene, Md Julker Nine, Cameron Shearer, Christopher Gibson, Ashley D. Slattery, Sherif Abdulkader Tawfik, Michael Ford, Sheng Dai, Shizhang Qiao, Joseph Shapter

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

Research into efficient synthesis, fundamental properties, and potential applications of phosphorene is currently the subject of intense investigation. Herein, solution-processed phosphorene or few-layer black phosphorus (FL-BP) sheets are prepared using a microwave exfoliation method and used in photoelectrochemical cells. Based on experimental and theoretical (DFT) studies, the FL-BP sheets are found to act as catalytically active sites and show excellent electrocatalytic activity for triiodide reduction in dye-sensitized solar cells. Importantly, the device fabricated based on the newly designed cobalt sulfide (CoSx) decorated nitrogen and sulfur co-doped carbon nanotube heteroelectrocatalyst coated with FL-BP (FL-BP@N,S-doped CNTs-CoSx) displayed an impressive photovoltaic efficiency of 8.31 %, outperforming expensive platinum based cells. This work paves the way for using phosphorene-based electrocatalysts for next-generation energy-storage systems.

Original languageEnglish
Pages (from-to)2644-2647
Number of pages4
JournalAngewandte Chemie International Edition
Volume57
Issue number10
DOIs
Publication statusPublished - 17 Jan 2018

Keywords

  • 2D materials
  • black phosphorus
  • electrocatalysis
  • photochemistry
  • solar cells

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