Highly reactive Cu-Pt bimetallic 3D-electrocatalyst for selective nitrate reduction to ammonia

Cerrón-Calle, Gabriel Antonio; Fajardo, Ana S.; Sánchez‐Sánchez, Carlos M.; Garcia‐Segura, Sergi

doi:10.1016/j.apcatb.2021.120844

Cited by 189 publications

(112 citation statements)

References 44 publications

(48 reference statements)

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“…Cu-Al2O3 with interfacial Cu-O-Al demonstrated high activity for NH3 generation in Liu's work [389]. Furthermore, different metals can combine with Cu for NO3RR to produce different products, such as CuNi alloys [390], Cu50Ni50 [391], Cu/Zn [392,393], Cu-Sn alloy [394], CuPt [395], Cu-Rh alloys [396], Au1Cu (111) single-atom alloys with surface Cu vacancies [397], PdCu [398], Pd-Cu/SS [399], and Cu-Pd-TiO2 [400]. Predicting product selectivity by the metal contained in the catalyst is not always correct.…”

Section: Electrochemical Reduction Of Nitrogen Oxyanionsmentioning

confidence: 99%

Recent advances in nanostructured heterogeneous catalysts for N-cycle electrocatalysis

Sun

Liang

Liu

et al. 2022

Nano Research Energy

340

229

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To restore the natural nitrogen cycle (N-cycle), artificial N-cycle electrocatalysis with flexibility, sustainability, and compatibility can convert intermittent renewable energy (e.g., wind) to harmful or value-added chemicals with minimal carbon emissions. The background of such N-cycles, such as nitrogen fixation, ammonia oxidation, and nitrate reduction, is briefly introduced here. The discussion of emerging nanostructures in various conversion reactions is focused on the architecture/compositional design, electrochemical performances, reaction mechanisms, and instructive tests. Energy device advancements for achieving more functions as well as in situ/operando characterizations toward understanding key steps are also highlighted. Furthermore, some recently proposed reactions as well as less discussed C-N coupling reactions are also summarized. We classify inorganic nitrogen sources that convert to each other under an applied voltage into three types, namely, abundant nitrogen, toxic nitrate (nitrite), and nitrogen oxides, and useful compounds such as ammonia, hydrazine, and hydroxylamine, with the goal of providing more critical insights into strategies to facilitate the development of our circular nitrogen economy.

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Section: Electrochemical Reduction Of Nitrogen Oxyanionsmentioning

confidence: 99%

Recent advances in nanostructured heterogeneous catalysts for N-cycle electrocatalysis

Sun

Liang

Liu

et al. 2022

Nano Research Energy

340

229

View full text Add to dashboard Cite

show abstract

“…13,14 Rational design of the electrocatalyst with excellent activity, high selectivity, and long durability is critical for the development of a practical eNO 3 RR device. Encouragingly, various catalysts, such as molecular solids, 13 pure metals, 7,15,16 metallic alloys, [17][18][19] metal compounds, [20][21][22][23] and atomic catalysts, [24][25][26][27][28][29][30][31][32][33][34] have been demonstrated to be highly efficient for eNO 3 RR. For example, it is shown that, at −0.4 V versus the reversible hydro-gen electrode, an NH 3 production rate of 436 ± 85 μg h −1 cm −2 and ultrahigh faradaic efficiency of 85.9% can be achieved on the copper-molecular solid catalyst.…”

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confidence: 99%

Theoretical insights into the electroreduction of nitrate to ammonia on graphene-based single-atom catalysts

Wang

et al. 2022

Nanoscale

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“…A recent techno-economic analysis conducted on electrified water treatment found that the cost of the electrode material was an area of much importance in terms of maximizing the cost effectiveness of this technology . Relying on an electrocatalyst design by Cerrón-Calle et al, for a highly active cathode for the reduction nitrate an electrode of a 10 cm 2 geometric area would cost approximate $2.15 USD . The bulk of this material would be copper foam (99.64%), which would account for $1.60 USD, while the remaining mass (0.36%) would come from the Pt nanoparticles with approximately $0.50 USD in costs.…”

Section: Selecting Cathodic Materials As a Key Aspect Of Translationa...mentioning

confidence: 99%

Outlining Key Perspectives for the Advancement of Electrocatalytic Remediation of Nitrate from Polluted Waters

et al. 2022

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As nitrate pollution in groundwater continues to escalate, more is being discovered about the detrimental health implications associated with concentrated nitrate ingestion. Thus, there is a great necessity for the effective and sustainable remediation of nitrate from water. The electrocatalytic reduction of nitrate (ERN) has been identified as a promising technology with respect to selective product formation (N 2(g) and NH3/NH4 +), adaptable instrument configurations, and compatibility with renewable energy sources. Electrocatalysts with appreciable selectivity for nitrate reduction to nitrogen gas are of great importance for drinking water applications. On the other hand, ammonia-selective catalysts are desirable for resource recovery. Traditional catalysts for ERN applications include expensive platinum group metals, which makes the widespread utilization of this technology economically unfavorable. Alternatively, research within the last five years has shown cost-effective catalytic materials such as bimetallic systems, graphitic composites, metal oxides, and metal sulfides exhibiting substantial activity/selectivity for ERN applications. Future ERN catalysts must not only express significant activity/selectivity but also be capable of stable and consistent performance under varying water chemistries. Combating electrocatalyst aging and fouling processes will be key in material design for catalysts capable of efficient remediation of nitrate from water under continuous long-term operation.

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Highly reactive Cu-Pt bimetallic 3D-electrocatalyst for selective nitrate reduction to ammonia

Cited by 189 publications

References 44 publications

Recent advances in nanostructured heterogeneous catalysts for N-cycle electrocatalysis

Recent advances in nanostructured heterogeneous catalysts for N-cycle electrocatalysis

Theoretical insights into the electroreduction of nitrate to ammonia on graphene-based single-atom catalysts

Outlining Key Perspectives for the Advancement of Electrocatalytic Remediation of Nitrate from Polluted Waters

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