Ultrathin Dendritic Pd-Ag Nanoplates for Efficient and Durable Electrocatalytic Reduction of CO2 to Formate

Hui Zi Huang; Di Liu; Li Wei Chen; Zhejiaji Zhu; Jiani Li; Zi Long Yu; Xin Su; Xiaoting Jing; Si Qian Wu; Wenjing Tian; An Xiang Yin

doi:10.1002/asia.202300110

Ultrathin Dendritic Pd-Ag Nanoplates for Efficient and Durable Electrocatalytic Reduction of CO₂ to Formate

Hui Zi Huang, Di Liu, Li Wei Chen, Zhejiaji Zhu, Jiani Li, Zi Long Yu, Xin Su, Xiaoting Jing, Si Qian Wu, Wenjing Tian, An Xiang Yin^*

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Beijing Institute of Technology

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

5 Citations (Scopus)

Abstract

CO₂ reduction reactions (CO₂RR) powered by renewable electricity can directly convert CO₂ to hydrocarbons and fix the sustainable but intermittent energy (e. g., sunlight, wind, etc.) in stable and portable chemical fuels. Advanced catalysts boosting CO₂RR with high activity, selectivity, and durability at low overpotentials are of great importance but still elusive. Here, we report that the ultrathin Pd-Ag dendritic nanoplates (PdAg DNPs) exhibited boosted activity, selectivity, and stability for producing formate from CO₂ at a very low overpotential in aqueous solutions under ambient conditions. As a result, the PdAg DNPs exhibited a Faradaic efficiency (FE) for formate of 91% and a cathodic energy efficiency (EE) of ∼90% at the potential of −0.2 V versus reversible hydrogen electrode (vs. RHE), showing significantly enhanced durability as compared with pure Pd catalysts. Our strategy represents a rational catalyst design by engineering the surface geometrical and electronic structures of metal nanocrystals and may find more applicability in future electrocatalysis.

Original language	English
Article number	e202300110
Journal	Chemistry - An Asian Journal
Volume	18
Issue number	9
DOIs	https://doi.org/10.1002/asia.202300110
Publication status	Published - 2 May 2023

Keywords

Pd-Ag alloy
anti-CO-poisoning
dendritic nanostructures
electrochemical CO reduction
surface electronic structure

UN SDGs

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

Access to Document

10.1002/asia.202300110

Cite this

@article{ab166ccf7ed04f6e8fde90308f512349,

title = "Ultrathin Dendritic Pd-Ag Nanoplates for Efficient and Durable Electrocatalytic Reduction of CO2 to Formate",

abstract = "CO2 reduction reactions (CO2RR) powered by renewable electricity can directly convert CO2 to hydrocarbons and fix the sustainable but intermittent energy (e. g., sunlight, wind, etc.) in stable and portable chemical fuels. Advanced catalysts boosting CO2RR with high activity, selectivity, and durability at low overpotentials are of great importance but still elusive. Here, we report that the ultrathin Pd-Ag dendritic nanoplates (PdAg DNPs) exhibited boosted activity, selectivity, and stability for producing formate from CO2 at a very low overpotential in aqueous solutions under ambient conditions. As a result, the PdAg DNPs exhibited a Faradaic efficiency (FE) for formate of 91% and a cathodic energy efficiency (EE) of ∼90% at the potential of −0.2 V versus reversible hydrogen electrode (vs. RHE), showing significantly enhanced durability as compared with pure Pd catalysts. Our strategy represents a rational catalyst design by engineering the surface geometrical and electronic structures of metal nanocrystals and may find more applicability in future electrocatalysis.",

keywords = "Pd-Ag alloy, anti-CO-poisoning, dendritic nanostructures, electrochemical CO reduction, surface electronic structure",

author = "Huang, {Hui Zi} and Di Liu and Chen, {Li Wei} and Zhejiaji Zhu and Jiani Li and Yu, {Zi Long} and Xin Su and Xiaoting Jing and Wu, {Si Qian} and Wenjing Tian and Yin, {An Xiang}",

note = "Publisher Copyright: {\textcopyright} 2023 Wiley-VCH GmbH.",

year = "2023",

month = may,

day = "2",

doi = "10.1002/asia.202300110",

language = "English",

volume = "18",

journal = "Chemistry - An Asian Journal",

issn = "1861-4728",

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T1 - Ultrathin Dendritic Pd-Ag Nanoplates for Efficient and Durable Electrocatalytic Reduction of CO2 to Formate

AU - Huang, Hui Zi

AU - Liu, Di

AU - Chen, Li Wei

AU - Zhu, Zhejiaji

AU - Li, Jiani

AU - Yu, Zi Long

AU - Su, Xin

AU - Jing, Xiaoting

AU - Wu, Si Qian

AU - Tian, Wenjing

AU - Yin, An Xiang

PY - 2023/5/2

Y1 - 2023/5/2

N2 - CO2 reduction reactions (CO2RR) powered by renewable electricity can directly convert CO2 to hydrocarbons and fix the sustainable but intermittent energy (e. g., sunlight, wind, etc.) in stable and portable chemical fuels. Advanced catalysts boosting CO2RR with high activity, selectivity, and durability at low overpotentials are of great importance but still elusive. Here, we report that the ultrathin Pd-Ag dendritic nanoplates (PdAg DNPs) exhibited boosted activity, selectivity, and stability for producing formate from CO2 at a very low overpotential in aqueous solutions under ambient conditions. As a result, the PdAg DNPs exhibited a Faradaic efficiency (FE) for formate of 91% and a cathodic energy efficiency (EE) of ∼90% at the potential of −0.2 V versus reversible hydrogen electrode (vs. RHE), showing significantly enhanced durability as compared with pure Pd catalysts. Our strategy represents a rational catalyst design by engineering the surface geometrical and electronic structures of metal nanocrystals and may find more applicability in future electrocatalysis.

AB - CO2 reduction reactions (CO2RR) powered by renewable electricity can directly convert CO2 to hydrocarbons and fix the sustainable but intermittent energy (e. g., sunlight, wind, etc.) in stable and portable chemical fuels. Advanced catalysts boosting CO2RR with high activity, selectivity, and durability at low overpotentials are of great importance but still elusive. Here, we report that the ultrathin Pd-Ag dendritic nanoplates (PdAg DNPs) exhibited boosted activity, selectivity, and stability for producing formate from CO2 at a very low overpotential in aqueous solutions under ambient conditions. As a result, the PdAg DNPs exhibited a Faradaic efficiency (FE) for formate of 91% and a cathodic energy efficiency (EE) of ∼90% at the potential of −0.2 V versus reversible hydrogen electrode (vs. RHE), showing significantly enhanced durability as compared with pure Pd catalysts. Our strategy represents a rational catalyst design by engineering the surface geometrical and electronic structures of metal nanocrystals and may find more applicability in future electrocatalysis.

KW - Pd-Ag alloy

KW - anti-CO-poisoning

KW - dendritic nanostructures

KW - electrochemical CO reduction

KW - surface electronic structure

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