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

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

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    48 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 - 1 Mar 2018

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