Pd–Cu alloy catalyst synthesized by citric acid-assisted galvanic displacement reaction for N2O reduction

Baek, Seungyeon; Kim, Kyeounghak; Kwon, O’Dae; Kim, Hyeonsu; Han, Jeong Woo; Kwon, Oh Joong; Kim, Jae Jeong

doi:10.1007/s10800-019-01396-x

Cited by 8 publications

(6 citation statements)

References 74 publications

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“…In the regime that HER was expected, the longer deposition time slightly improved the N 2 Faradaic efficiency. Among all the samples, the Cu-30 min electrode achieved the highest N 2 partial current density of −9.1 mA cm −2 , which is on-par with that of Pd, 15 and a 3.5-fold improvement over the flat Cu electrode.…”

Section: Resultsmentioning

confidence: 93%

“…14 Furthermore, the high temperature could also lead to toxic by-products such as NO and NO 2 . 15 As a result, more cost-effective N 2 O abatement processes are required for the technology to be extensively implemented around the world.…”

Section: Introductionmentioning

confidence: 99%

“…14 Furthermore, the high temperature could also lead to toxic by-products such as NO and NO 2 . 15 As a result, more costeffective N 2 O abatement processes are required for the technology to be extensively implemented around the world. N 2 O decomposition via an electrochemical route has the potential to be less energy intensive than the thermal process since it can be operated even at ambient temperature.…”

Section: Introductionmentioning

confidence: 99%

“…Among them, Pd offers the highest N 2 ORR activity and a high Faradaic efficiency toward N 2 formation. 20 Various Pd-based catalysts have been investigated for N 2 ORR such as bimetallic catalysts 15 and core-shell structures. 21 While these Pd-based catalysts have the earliest onset potential of any catalyst now available, 15,21,22 their exorbitant cost makes large-scale production of this technology challenging.…”

Section: Introductionmentioning

confidence: 99%

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Development of a high surface area Cu electrocatalyst for effective nitrous oxide reduction reaction

et al. 2023

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Section: Resultsmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Development of a high surface area Cu electrocatalyst for effective nitrous oxide reduction reaction

et al. 2023

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“…In the present study (here, 100 °C), Pd cored inside the Cu nanocubes. Therefore, it is reasonable to speculate that Cu nanocubes were gradually oxidized to form copper ions, 39 and a similar effect occurred to Pd once it was exposed to the solution. The as-formed Cu and Pd ions were then reduced by CA to form metal atoms, which further catalyzed the carbonization of CA to form a carbon nanobelt.…”

Section: Resultsmentioning

confidence: 99%

Facile Synthesis of Carbon Nanobelts Decorated with Cu and Pd for Nitrate Electroreduction to Ammonia

Wang

Sun

Bai

et al. 2022

ACS Appl. Mater. Interfaces

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The electrocatalytic nitrate conversion of ammonia at ambient conditions provides not only a solution for restoring the imbalance in the global nitrogen cycle but also a sustainable alternative for the Haber–Bosch process. However, large-scale and efficient application of electrocatalytic denitrification has been limited by the lack of active catalysts with a high selectivity of nitrate reduction to N2. In this work, we present a one-step solution processed synthetic strategy at low temperature to prepare carbon-nanobelts-supported uniform Cu and Pd nanoclusters. It is found that Cu catalyzed the formation of carbon nanobelts. The prepared samples were used for the green synthesis of ammonia from nitrate by electrocatalysis. For the nitrate reduction reaction (NO3RR), Cu–Pd/C nanobelts show higher activity than Cu/C nanobelts, achieving a high yield of ammonia of 220.8 μg mgcat –1 h–1 with a Faradaic efficiency (FE) of 62.3% at −0.4 V vs RHE (reversible hydrogen electrode), while for the nitrite reduction reaction (NO2RR), a high FE of 95% at −0.2 V vs RHE can be obtained for Cu/C nanobelts with the yield of ammonia increased with the negative shift of the applied potentials. Theoretical calculations demonstrated that Pd and Cu are responsible for hydrogen evolution reaction (HER) and NO3RR, respectively.

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Potential of Single Transition Metal Atom Embedded C₂N as Efficient Catalysts for N₂O Reduction: Theoretical Investigation

Liu

Sheng

2023

Advcd Theory and Sims

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Converting the toxic air pollutant N 2 O into less harmful gas has potential advantages. Herein, the feasibility of the N 2 O reduction reaction over pristine C 2 N and TM/C 2 N (TM = V, Cr, Mn, Fe, Co, Ni, Cu, and Zn) monolayers are explored by density functional theory calculations with Grimme-D3 correction. The results reveal that the existence of TM atoms indeed improves the adsorption performance of C 2 N, where the TM atoms act as both electron acceptors and donors, favoring the activation of N 2 O and CO molecules. Based on thermal stability, selectivity, and catalytic activity, TM/C 2 N (TM = V and Mn) catalysts are screened from the above transition metal atoms. In particular, N 2 O reduction is a thermodynamically and kinetically favorable pathway, which can take place with negligible energy barriers on V/C 2 N and Mn/C 2 N catalysts. The CO 2 desorption on V/C 2 N and Mn/C 2 N catalysts is the rate-limiting step with the desorption barrier of only 13.1 and 15.1 kcal mol −1 , respectively. These results suggest that the screened TM/C 2 N (TM = V and Mn) materials can be used as promising catalysts for the adsorption and reduction of environmentally unfriendly N 2 O molecules.

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Pd–Cu alloy catalyst synthesized by citric acid-assisted galvanic displacement reaction for N2O reduction

Cited by 8 publications

References 74 publications

Development of a high surface area Cu electrocatalyst for effective nitrous oxide reduction reaction

Development of a high surface area Cu electrocatalyst for effective nitrous oxide reduction reaction

Facile Synthesis of Carbon Nanobelts Decorated with Cu and Pd for Nitrate Electroreduction to Ammonia

Potential of Single Transition Metal Atom Embedded C₂N as Efficient Catalysts for N₂O Reduction: Theoretical Investigation

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Pd–Cu alloy catalyst synthesized by citric acid-assisted galvanic displacement reaction for N2O reduction

Cited by 8 publications

References 74 publications

Development of a high surface area Cu electrocatalyst for effective nitrous oxide reduction reaction

Development of a high surface area Cu electrocatalyst for effective nitrous oxide reduction reaction

Facile Synthesis of Carbon Nanobelts Decorated with Cu and Pd for Nitrate Electroreduction to Ammonia

Potential of Single Transition Metal Atom Embedded C2N as Efficient Catalysts for N2O Reduction: Theoretical Investigation

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Potential of Single Transition Metal Atom Embedded C₂N as Efficient Catalysts for N₂O Reduction: Theoretical Investigation