Pd(1 1 1)/SnO2(1 0 1) heterostructure on porous N-carbon material as enhanced catalyst for formic acid electrooxidation

Li, You-Fen; Jiang, Yutong; Wang, Lege; Zhang, Shuo; Yang, Renqiang

doi:10.1016/j.apsusc.2021.151922

Cited by 6 publications

(5 citation statements)

References 55 publications

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“…The C 1s peak of L-Pd/rGO (Figure c) can be deconvoluted into four peaks: The majority of the carbon signals detected by XPS (54 atom % from the total composite) originate from C–C and CC denoted for sp 3 and sp 2 carbon at 284.8 eV, confirming the successful conversion of GO to rGO. Still, the presence of C–O and CO peaks indicates the existence of an oxidized form of carbon in minute quantity (11.6 atom %) from the total composite, Figure a. , After heat treatment, there is minimal change in the C 1s spectra (Figure S7b) of H-Pd/rGO, with only the Pd–C peak disappearing due to the oxidation of Pd to PdO. This observation is consistent with the Raman spectra.…”

Section: Resultssupporting

confidence: 79%

“…3a. 52,53 After heat treatment, there is minimal change in the C 1s spectra (Figure S7b) of H-Pd/rGO, with only the Pd−C peak disappearing due to the oxidation of Pd to PdO. This observation is consistent with the Raman spectra.…”

Section: Physiochemical Characterization Of the Pd-pdosupporting

confidence: 80%

“…Still, the presence of C–O and C=O peaks indicates the existence of an oxidized form of carbon in minute quantity (11.6 atom %) from the total composite, Figure 3 a. 52 , 53 After heat treatment, there is minimal change in the C 1s spectra ( Figure S7b ) of H-Pd/rGO, with only the Pd–C peak disappearing due to the oxidation of Pd to PdO. This observation is consistent with the Raman spectra.…”

Section: Resultsmentioning

confidence: 96%

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Laser-Induced Pd-PdO/rGO Catalysts for Enhanced Electrocatalytic Conversion of Nitrate into Ammonia

Ebenezer,

Lal,

Velayudham

et al. 2024

ACS Appl. Mater. Interfaces

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Electrochemical reduction of nitrate to ammonia (eNO 3 RR) is proposed as a sustainable solution for high-rate ammonia synthesis under ambient conditions. The complex, multistep eNO 3 RR mechanism necessitates the use of a catalyst for the complete conversion of nitrate to ammonia. Our research focuses on developing a novel Pd-PdO doped in a reduced graphene oxide (rGO) composite catalyst synthesized via a laserassisted one-step technique. This catalyst demonstrates dual functionality: palladium (Pd) boosts hydrogen adsorption, while its oxide (PdO) demonstrates considerable nitrogen adsorption affinity and exhibits a maximum ammonia yield of 5456.4 ± 453.4 μg/h/cm 2 at −0.6 V vs reversible hydrogen electrode (RHE), with significant yields for nitrite and hydroxylamine under ambient conditions in a nitrate-containing alkaline electrolyte. At a lower potential of −0.1 V, the catalyst exhibited a minimal hydrogen evolution reaction of 3.1 ± 2.2% while achieving high ammonia selectivity (74.9 ± 4.4%), with the balance for nitrite and hydroxylamine. Additionally, the catalyst's stability and activity can be regenerated through the electrooxidation of Pd.

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Section: Resultssupporting

confidence: 79%

Section: Physiochemical Characterization Of the Pd-pdosupporting

confidence: 80%

Section: Resultsmentioning

confidence: 96%

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Laser-Induced Pd-PdO/rGO Catalysts for Enhanced Electrocatalytic Conversion of Nitrate into Ammonia

Ebenezer,

Lal,

Velayudham

et al. 2024

ACS Appl. Mater. Interfaces

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“…Metal oxides have long been regarded as efficient catalytic promoters for noble metal-based electrocatalysts because of their ability to minimize the overall usage of noble-metal components and to offer plentiful hydroxyl sources at relatively low electrode potentials for rapid CO oxidation. − However, most metal oxides deliver high charge-transfer resistances owing to their intrinsic semiconducting property; such high resistances retard the anode kinetics for electrooxidation of small organic molecules. , In addition, the inert surfaces of metal oxides usually lack adequate binding sites for anchoring noble-metal nanocrystals, thus rendering suppressed concerted catalytic effects . To overcome the above issues, a considerable amount of effort has been devoted to the exploration of metal oxides combined with porous carbon nanoarchitectures, which are beneficial for increasing the utilization efficiency of noble metals. − …”

Section: Application Of Noble Metal-decorated Porous Carbon Nanoarchi...mentioning

confidence: 99%

Advancements in Noble Metal-Decorated Porous Carbon Nanoarchitectures: Key Catalysts for Direct Liquid Fuel Cells

Huang,

Guo,

Zhang

et al. 2024

ACS Nano

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Noble-metal nanocrystals have emerged as essential electrode materials for catalytic oxidation of organic small molecule fuels in direct liquid fuel cells (DLFCs). However, for large-scale commercialization of DLFCs, adopting cost-effective techniques and optimizing their structures using advanced matrices are crucial. Notably, noble metaldecorated porous carbon nanoarchitectures exhibit exceptional electrocatalytic performances owing to their three-dimensional cross-linked porous networks, large accessible surface areas, homogeneous dispersion (of noble metals), reliable structural stability, and outstanding electrical conductivity. Consequently, they can be utilized to develop nextgeneration anode catalysts for DLFCs. Considering the recent expeditious advancements in this field, this comprehensive review provides an overview of the current progress in noble metal-decorated porous carbon nanoarchitectures. This paper meticulously outlines the associated synthetic strategies, precise microstructure regulation techniques, and their application in electrooxidation of small organic molecules. Furthermore, the review highlights the research challenges and future opportunities in this prospective research field, offering valuable insights for both researchers and industry experts.

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“…Nanowires and nanochain networks tend to provide better electrical conductivity and contain defects, terraces and edges which favor the FAO. [41,164] In this this regard, Pd 4 Sn nano chain networks (NNCs) were synthesized using solvothermal method. The formation of Nano chain network and the effect of heat treatment is described in Figure 6A.…”

Section: Tinmentioning

confidence: 99%

Recent Advances in Anode Electrocatalysts for Direct Formic Acid Fuel Cells – Part I – Fundamentals and Pd Based Catalysts

Hossain

Saleem

Alwi

et al. 2022

The Chemical Record

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Direct formic acid fuel cells (DFAFCs) have gained immense importance as a source of clean energy for portable electronic devices. It outperforms other fuel cells in several key operational and safety parameters. However, slow kinetics of the formic acid oxidation at the anode remains the main obstacle in achieving a high power output in DFAFCs. Noble metal‐based electrocatalysts are effective, but are expensive and prone to CO poisoning. Recently, a substantial volume of research work have been dedicated to develop inexpensive, high activity and long lasting electrocatalysts. Herein, recent advances in the development of anode electrocatalysts for DFAFCs are presented focusing on understanding the relationship between activity and structure. This review covers the literature related to the electrocatalysts based on noble metals, non‐noble metals, metal‐oxides, synthesis route, support material, and fuel cell performance. The future prospects and bottlenecks in the field are also discussed at the end.

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Pd(1 1 1)/SnO2(1 0 1) heterostructure on porous N-carbon material as enhanced catalyst for formic acid electrooxidation

Cited by 6 publications

References 55 publications

Laser-Induced Pd-PdO/rGO Catalysts for Enhanced Electrocatalytic Conversion of Nitrate into Ammonia

Laser-Induced Pd-PdO/rGO Catalysts for Enhanced Electrocatalytic Conversion of Nitrate into Ammonia

Advancements in Noble Metal-Decorated Porous Carbon Nanoarchitectures: Key Catalysts for Direct Liquid Fuel Cells

Recent Advances in Anode Electrocatalysts for Direct Formic Acid Fuel Cells – Part I – Fundamentals and Pd Based Catalysts

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