Topochemical Synthesis of Two-Dimensional Transition-Metal Phosphides Using Phosphorene Templates

Yang S, Chen G, Ricciardulli AG, Zhang P, Zhang Z, Shi H, Ma J, Zhang J, Blom PWM, Feng X (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Angewandte Chemie International Edition Wiley

Book Volume: 59

Pages Range: 465-470

Journal Issue: 1

DOI: 10.1002/anie.201911428

Abstract

Transition-metal phosphides (TMPs) have emerged as a fascinating class of narrow-gap semiconductors and electrocatalysts. However, they are intrinsic nonlayered materials that cannot be delaminated into two-dimensional (2D) sheets. Here, we demonstrate a general bottom-up topochemical strategy to synthesize a series of 2D TMPs (e.g. Co2P, Ni12P5, and CoxFe2−xP) by using phosphorene sheets as the phosphorus precursors and 2D templates. Notably, 2D Co2P is a p-type semiconductor, with a hole mobility of 20.8 cm2 V−1 s−1 at 300 K in field-effect transistors. It also behaves as a promising electrocatalyst for the oxygen evolution reaction (OER), thanks to the charge-transport modulation and improved surface exposure. In particular, iron-doped Co2P (i.e. Co1.5Fe0.5P) delivers a low overpotential of only 278 mV at a current density of 10 mA cm−2 that outperforms the commercial Ir/C benchmark (304 mV).

Involved external institutions

Technische Universität Dresden DE Germany (DE) Max-Planck-Institut für Polymerforschung (MPI-P) / Max Planck Institute for Polymer Research DE Germany (DE)

How to cite

APA:

Yang, S., Chen, G., Ricciardulli, A.G., Zhang, P., Zhang, Z., Shi, H.,... Feng, X. (2020). Topochemical Synthesis of Two-Dimensional Transition-Metal Phosphides Using Phosphorene Templates. Angewandte Chemie International Edition, 59(1), 465-470. https://doi.org/10.1002/anie.201911428

MLA:

Yang, Sheng, et al. "Topochemical Synthesis of Two-Dimensional Transition-Metal Phosphides Using Phosphorene Templates." Angewandte Chemie International Edition 59.1 (2020): 465-470.

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