Unsaturated p-Metal Based Metal-Organic Frameworks for Selective Nitrogen Reduction Under Ambient Conditions
File version
Accepted Manuscript (AM)
Author(s)
Li, Kangkang
Batmunkh, Munkhbayar
Yu, Hai
Donne, Scott W
Jia, Baohua
Ma, Tianyi
Griffith University Author(s)
Primary Supervisor
Other Supervisors
Editor(s)
Date
Size
File type(s)
Location
License
Abstract
Electrochemical ammonia synthesis that utilizes renewable electricity in the nitrogen reduction reaction (NRR) has recently been remarkably considered. Of particular importance is to develop efficient electrocatalysts at low costs. Herein, highly selective nitrogen capture using porous aluminum-based metal-organic frameworks (MOFs) materials, MIL-100 (Al), is first designed for the electrochemical nitrogen fixation in alkaline media under ambient conditions. Owing to the unique structure, MIL-100 (Al) exhibits remarkable NRR properties (NH3 yield: 10.6 µg h-1 cm-2 mgcat.-1, Faradaic efficiency: 22.6%) at a low overpotential (177 mV). Investigation indicates that the catalyst shows excellent N2-selective captures due to the unsaturated metal sites binding with N2. More specifically, as Al 3p band can strongly interact with N 2p orbitals, Al as a main-group metal presents a high and selective affinity to N2. The utilization of multifunctional MOF catalysts delivers both high N2 selectivity and abundant catalytic sites, resulting in remarkable efficiency for NH3 production.
Journal Title
ACS Applied Materials & Interfaces
Conference Title
Book Title
Edition
Volume
Issue
Thesis Type
Degree Program
School
Publisher link
Patent number
Funder(s)
Grant identifier(s)
Rights Statement
Rights Statement
This document is the Postprint of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, © 2020 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsami.0c13902
Item Access Status
Note
This publication has been entered in Griffith Research Online as an advanced online version.
Access the data
Related item(s)
Subject
Chemical sciences
Engineering
Persistent link to this record
Citation
Fu, Y; Li, K; Batmunkh, M; Yu, H; Donne, SW; Jia, B; Ma, T, Unsaturated p-Metal Based Metal-Organic Frameworks for Selective Nitrogen Reduction Under Ambient Conditions, ACS Applied Materials & Interfaces, 2020