Large-Scale and Highly Selective CO 2 Electrocatalytic Reduction on Nickel Single-Atom Catalyst

Tingting Zheng, Kun Jiang, Na Ta, Yongfeng Hu, Jie Zeng, Jingyue Liu, Haotian Wang

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The scaling up of electrocatalytic CO 2 reduction for practical applications is still hindered by a few challenges: low selectivity, small current density to maintain a reasonable selectivity, and the cost of the catalytic materials. Here we report a facile synthesis of earth-abundant Ni single-atom catalysts on commercial carbon black, which were further employed in a gas-phase electrocatalytic reactor under ambient conditions. As a result, those single-atomic sites exhibit an extraordinary performance in reducing CO 2 to CO, yielding a current density above 100 mA cm −2 , with nearly 100% selectivity for CO and around 1% toward the hydrogen evolution side reaction. By further scaling up the electrode into a 10 × 10-cm 2 modular cell, the overall current in one unit cell can easily ramp up to more than 8 A while maintaining an exclusive CO evolution with a generation rate of 3.34 L hr −1 per unit cell.

Original languageEnglish (US)
Pages (from-to)265-278
Number of pages14
JournalJoule
Volume3
Issue number1
DOIs
StatePublished - Jan 16 2019
Externally publishedYes

Fingerprint

Current density
Nickel
Atoms
Catalysts
Carbon black
Earth (planet)
Hydrogen
Electrodes
Gases
Costs

Keywords

  • CO evolution
  • CO reduction
  • MEA
  • membrane electrode assembly
  • practical CO electrolysis
  • scaling up CO reduction
  • single-atom catalyst

ASJC Scopus subject areas

  • Energy(all)

Cite this

Large-Scale and Highly Selective CO 2 Electrocatalytic Reduction on Nickel Single-Atom Catalyst . / Zheng, Tingting; Jiang, Kun; Ta, Na; Hu, Yongfeng; Zeng, Jie; Liu, Jingyue; Wang, Haotian.

In: Joule, Vol. 3, No. 1, 16.01.2019, p. 265-278.

Research output: Contribution to journalArticle

Zheng, Tingting ; Jiang, Kun ; Ta, Na ; Hu, Yongfeng ; Zeng, Jie ; Liu, Jingyue ; Wang, Haotian. / Large-Scale and Highly Selective CO 2 Electrocatalytic Reduction on Nickel Single-Atom Catalyst In: Joule. 2019 ; Vol. 3, No. 1. pp. 265-278.
@article{1eae883c77cd458bab9f0bc94ef81d4b,
title = "Large-Scale and Highly Selective CO 2 Electrocatalytic Reduction on Nickel Single-Atom Catalyst",
abstract = "The scaling up of electrocatalytic CO 2 reduction for practical applications is still hindered by a few challenges: low selectivity, small current density to maintain a reasonable selectivity, and the cost of the catalytic materials. Here we report a facile synthesis of earth-abundant Ni single-atom catalysts on commercial carbon black, which were further employed in a gas-phase electrocatalytic reactor under ambient conditions. As a result, those single-atomic sites exhibit an extraordinary performance in reducing CO 2 to CO, yielding a current density above 100 mA cm −2 , with nearly 100{\%} selectivity for CO and around 1{\%} toward the hydrogen evolution side reaction. By further scaling up the electrode into a 10 × 10-cm 2 modular cell, the overall current in one unit cell can easily ramp up to more than 8 A while maintaining an exclusive CO evolution with a generation rate of 3.34 L hr −1 per unit cell.",
keywords = "CO evolution, CO reduction, MEA, membrane electrode assembly, practical CO electrolysis, scaling up CO reduction, single-atom catalyst",
author = "Tingting Zheng and Kun Jiang and Na Ta and Yongfeng Hu and Jie Zeng and Jingyue Liu and Haotian Wang",
year = "2019",
month = "1",
day = "16",
doi = "10.1016/j.joule.2018.10.015",
language = "English (US)",
volume = "3",
pages = "265--278",
journal = "Joule",
issn = "2542-4351",
publisher = "Cell Press",
number = "1",

}

TY - JOUR

T1 - Large-Scale and Highly Selective CO 2 Electrocatalytic Reduction on Nickel Single-Atom Catalyst

AU - Zheng, Tingting

AU - Jiang, Kun

AU - Ta, Na

AU - Hu, Yongfeng

AU - Zeng, Jie

AU - Liu, Jingyue

AU - Wang, Haotian

PY - 2019/1/16

Y1 - 2019/1/16

N2 - The scaling up of electrocatalytic CO 2 reduction for practical applications is still hindered by a few challenges: low selectivity, small current density to maintain a reasonable selectivity, and the cost of the catalytic materials. Here we report a facile synthesis of earth-abundant Ni single-atom catalysts on commercial carbon black, which were further employed in a gas-phase electrocatalytic reactor under ambient conditions. As a result, those single-atomic sites exhibit an extraordinary performance in reducing CO 2 to CO, yielding a current density above 100 mA cm −2 , with nearly 100% selectivity for CO and around 1% toward the hydrogen evolution side reaction. By further scaling up the electrode into a 10 × 10-cm 2 modular cell, the overall current in one unit cell can easily ramp up to more than 8 A while maintaining an exclusive CO evolution with a generation rate of 3.34 L hr −1 per unit cell.

AB - The scaling up of electrocatalytic CO 2 reduction for practical applications is still hindered by a few challenges: low selectivity, small current density to maintain a reasonable selectivity, and the cost of the catalytic materials. Here we report a facile synthesis of earth-abundant Ni single-atom catalysts on commercial carbon black, which were further employed in a gas-phase electrocatalytic reactor under ambient conditions. As a result, those single-atomic sites exhibit an extraordinary performance in reducing CO 2 to CO, yielding a current density above 100 mA cm −2 , with nearly 100% selectivity for CO and around 1% toward the hydrogen evolution side reaction. By further scaling up the electrode into a 10 × 10-cm 2 modular cell, the overall current in one unit cell can easily ramp up to more than 8 A while maintaining an exclusive CO evolution with a generation rate of 3.34 L hr −1 per unit cell.

KW - CO evolution

KW - CO reduction

KW - MEA

KW - membrane electrode assembly

KW - practical CO electrolysis

KW - scaling up CO reduction

KW - single-atom catalyst

UR - http://www.scopus.com/inward/record.url?scp=85060006685&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85060006685&partnerID=8YFLogxK

U2 - 10.1016/j.joule.2018.10.015

DO - 10.1016/j.joule.2018.10.015

M3 - Article

VL - 3

SP - 265

EP - 278

JO - Joule

JF - Joule

SN - 2542-4351

IS - 1

ER -