Tandem Nitrate Electroreduction to Ammonia with Industrial-Level Current Density on Hierarchical Cu Nanowires Shelled with NiCo-Layered Double Hydroxide

Xiaoxue Zhang; Xiaokang Liu; Zhen Feng Huang; Lei Guo; Li Gan; Shishi Zhang; Muhammad Ajmal; Lun Pan; Chengxiang Shi; Xiangwen Zhang; Guidong Yang; Ji Jun Zou

doi:10.1021/acscatal.3c04541

Tandem Nitrate Electroreduction to Ammonia with Industrial-Level Current Density on Hierarchical Cu Nanowires Shelled with NiCo-Layered Double Hydroxide

Xiaoxue Zhang
, Xiaokang Liu
, Zhen Feng Huang
, Lei Guo
, Li Gan
, Shishi Zhang
, Muhammad Ajmal
, Lun Pan
, Chengxiang Shi
, Xiangwen Zhang
, Guidong Yang
, Ji Jun Zou

School of Chemical Engineering and Technology

Research output: Contribution to journal › Article › peer-review

81 Scopus citations

Abstract

Electrochemical conversion of industrial nitrate wastewater to valuable ammonia (NH₃) is an attractive method for nitrate removal and NH₃ production. However, the energy efficiency is limited by the high reaction overpotential and poor selectivity. Herein, we demonstrate a tandem electrode composed of hierarchical Cu nanowires shelled with NiCo-layered double hydroxide (NiCo LDH/Cu NW) that exhibits an industrial-relevant NH₃ partial current density of 570 mA cm^-2 while maintaining a Faradaic efficiency of 94.25% through the nitrate reduction reaction (NO₃RR). The practical application of the NO₃RR route in simulated wastewater with different NO₃^- concentrations and in membrane electrode assembly is developed, which demonstrates great potential for industrial application.

Original language	English
Pages (from-to)	14670-14679
Number of pages	10
Journal	ACS Catalysis
Volume	13
Issue number	22
DOIs	https://doi.org/10.1021/acscatal.3c04541
State	Published - 17 Nov 2023

Keywords

ammonia synthesis
industrial-relevant current density
membrane electrode assembly
nitrate reduction reaction
tandem catalysis

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1021/acscatal.3c04541

Cite this

@article{b9a3f56cc4124a34b88e9ae34bfeeb35,

title = "Tandem Nitrate Electroreduction to Ammonia with Industrial-Level Current Density on Hierarchical Cu Nanowires Shelled with NiCo-Layered Double Hydroxide",

abstract = "Electrochemical conversion of industrial nitrate wastewater to valuable ammonia (NH3) is an attractive method for nitrate removal and NH3 production. However, the energy efficiency is limited by the high reaction overpotential and poor selectivity. Herein, we demonstrate a tandem electrode composed of hierarchical Cu nanowires shelled with NiCo-layered double hydroxide (NiCo LDH/Cu NW) that exhibits an industrial-relevant NH3 partial current density of 570 mA cm-2 while maintaining a Faradaic efficiency of 94.25\% through the nitrate reduction reaction (NO3RR). The practical application of the NO3RR route in simulated wastewater with different NO3- concentrations and in membrane electrode assembly is developed, which demonstrates great potential for industrial application.",

keywords = "ammonia synthesis, industrial-relevant current density, membrane electrode assembly, nitrate reduction reaction, tandem catalysis",

author = "Xiaoxue Zhang and Xiaokang Liu and Huang, \{Zhen Feng\} and Lei Guo and Li Gan and Shishi Zhang and Muhammad Ajmal and Lun Pan and Chengxiang Shi and Xiangwen Zhang and Guidong Yang and Zou, \{Ji Jun\}",

note = "Publisher Copyright: {\textcopyright} 2023 American Chemical Society",

year = "2023",

month = nov,

day = "17",

doi = "10.1021/acscatal.3c04541",

language = "英语",

volume = "13",

pages = "14670--14679",

journal = "ACS Catalysis",

issn = "2155-5435",

publisher = "American Chemical Society",

number = "22",

}

TY - JOUR

T1 - Tandem Nitrate Electroreduction to Ammonia with Industrial-Level Current Density on Hierarchical Cu Nanowires Shelled with NiCo-Layered Double Hydroxide

AU - Zhang, Xiaoxue

AU - Liu, Xiaokang

AU - Huang, Zhen Feng

AU - Guo, Lei

AU - Gan, Li

AU - Zhang, Shishi

AU - Ajmal, Muhammad

AU - Pan, Lun

AU - Shi, Chengxiang

AU - Zhang, Xiangwen

AU - Yang, Guidong

AU - Zou, Ji Jun

PY - 2023/11/17

Y1 - 2023/11/17

N2 - Electrochemical conversion of industrial nitrate wastewater to valuable ammonia (NH3) is an attractive method for nitrate removal and NH3 production. However, the energy efficiency is limited by the high reaction overpotential and poor selectivity. Herein, we demonstrate a tandem electrode composed of hierarchical Cu nanowires shelled with NiCo-layered double hydroxide (NiCo LDH/Cu NW) that exhibits an industrial-relevant NH3 partial current density of 570 mA cm-2 while maintaining a Faradaic efficiency of 94.25% through the nitrate reduction reaction (NO3RR). The practical application of the NO3RR route in simulated wastewater with different NO3- concentrations and in membrane electrode assembly is developed, which demonstrates great potential for industrial application.

AB - Electrochemical conversion of industrial nitrate wastewater to valuable ammonia (NH3) is an attractive method for nitrate removal and NH3 production. However, the energy efficiency is limited by the high reaction overpotential and poor selectivity. Herein, we demonstrate a tandem electrode composed of hierarchical Cu nanowires shelled with NiCo-layered double hydroxide (NiCo LDH/Cu NW) that exhibits an industrial-relevant NH3 partial current density of 570 mA cm-2 while maintaining a Faradaic efficiency of 94.25% through the nitrate reduction reaction (NO3RR). The practical application of the NO3RR route in simulated wastewater with different NO3- concentrations and in membrane electrode assembly is developed, which demonstrates great potential for industrial application.

KW - ammonia synthesis

KW - industrial-relevant current density

KW - membrane electrode assembly

KW - nitrate reduction reaction

KW - tandem catalysis

UR - https://www.scopus.com/pages/publications/85178368123

U2 - 10.1021/acscatal.3c04541

DO - 10.1021/acscatal.3c04541

M3 - 文章

AN - SCOPUS:85178368123

SN - 2155-5435

VL - 13

SP - 14670

EP - 14679

JO - ACS Catalysis

JF - ACS Catalysis

IS - 22

ER -

Tandem Nitrate Electroreduction to Ammonia with Industrial-Level Current Density on Hierarchical Cu Nanowires Shelled with NiCo-Layered Double Hydroxide

Abstract

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this