Enhanced catalytic activity of ternary Pd-Ni-Ir nanoparticles supported on carbon toward formic acid electro-oxidation

Jiang, Kun; Zhang, Jie; Chen, Jinwei

doi:10.1007/s10008-018-3908-0

Cited by 15 publications

(9 citation statements)

References 33 publications

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“…Two major peaks at BEs of 856.4 and 873.4 eV were found, which correspond to Ni 2p 3/2 and Ni 2p 1/2 , respectively. 46 In addition, two more satellite peaks at the BEs of 861.2 and 879.9 eV are observed, which are basically due to the presence of Ni 2+ species in the Pd 3 Ni/C EC.…”

Section: Methodsmentioning

confidence: 92%

Bimetallic Palladium–Nickel Nanoparticles Anchored on Carbon as High-Performance Electrocatalysts for Oxygen Reduction and Formic Acid Oxidation Reactions

Goswami

Saikia

Tada

et al. 2020

ACS Appl. Energy Mater.

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Herein, we report the synthesis of carbon-supported palladium–nickel electrocatalysts (ECs) (Pd4–x Ni x /C ECs, x = 1–3) as an important class of non-platinum ECs, for both oxygen reduction reaction (ORR) and formic acid oxidation (FAO) reactions. Among various as-synthesized ECs, the Pd3Ni/C catalyst exhibited the best performance, which outperforms the benchmark Pt/C and Pd/C catalysts. For ORR, the onset potential of Pd3Ni/C EC (0.96 V) is 40 and 80 mV more positive than that of the benchmark Pt/C (0.92 V) and Pd/C (0.88 V) catalysts, suggesting its remarkable ORR behavior. All Pd4–x Ni x /C (x = 1–3) compositions favored the “4e” reduction pathway during ORR in alkaline media. Furthermore, the ECs are very efficient toward the FAO reaction, which proceeds via the “dehydrogenation” pathway. The electrochemically active surface area of Pd3Ni/C EC is found to be ∼2-, ∼4-, ∼5-, and ∼35-fold higher than that of PdNi/C, PdNi3/C, Pd/C, and standard Pd/C ECs, respectively. The remarkable ORR/FAO activity of the synthesized ECs can be ascribed to the homogeneous dispersion of smaller palladium–nickel alloy nanoparticles over the carbon support, downshift of Pd d-band center, as well as synergistic effect between the metals that makes electron transfer easier. Meanwhile, the downshift of the Pd d-band center after alloying with Ni was confirmed via density functional theory calculations, which unveiled the superiority of Pd3Ni/C over other ECs and the benchmarks. Thus, this work represents a cost-effective and ecofriendly approach for designing high-performance anode as well as cathode catalytic materials for practical applications.

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Section: Methodsmentioning

confidence: 92%

Bimetallic Palladium–Nickel Nanoparticles Anchored on Carbon as High-Performance Electrocatalysts for Oxygen Reduction and Formic Acid Oxidation Reactions

Goswami

Saikia

Tada

et al. 2020

ACS Appl. Energy Mater.

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“…The ECSA was 1.01 cm 2 while the mass activity was 2830 mA/mg Pt which is 1.65, 1.85 and 2.2 times higher than PdIr, PdNi/C and Pd/C. [286] Liu et al reported the the highly active and durable amorphous PdNiCuP catalysts for FAO. Amorphous materials presents unqiue structure which have long term disorder with a short range ordered atomic structure.…”

Section: Ternary and Quaternary Catalystsmentioning

confidence: 95%

“…The ECSA was 1.01 cm 2 while the mass activity was 2830 mA/mg Pt which is 1.65, 1.85 and 2.2 times higher than PdIr, PdNi/C and Pd/C. [286] Zhang et al (2017) synthesized PdPtNi supported on CNT catalysts by using hydrogen reduction method with 10 % H2 mixture containing N2 at 300 °C. The resulting PdPiNi alloy nanoparticles of size 2.56 were uniformly and homogenously distributed on the CNT support.…”

Section: Ternary and Quaternary Catalystsmentioning

confidence: 99%

“…[276] However, there are some difficulties in the preparation alloyed ternary catalyst with well-defined shape and size and distribution due to the difference in the relative rate of reduction of the different precursors of metals. [282,283] Many composition for ternary catalyst have been reported in literature PdSnNi/C, [284] PdSnAg/C, [284] PdSnCo, [284] PdNiCu/C, [124] PdAgNi/C, [285] PdNiIr/C, [286] PdPtNi/CNT, [276] PtPdCo mesoporous nanoparticels, [287] core-shell PdPtCu/C, [288] PtPdFe, [289] PdCuSn/CNT, [184] and PdPtFe/graphene. [290] Table 2 summarizes the structural features and electrocatalytic activities of some of the most recently reported ternary and quaternary electrocatalysts for FAO.…”

Section: Ternary and Quaternary Catalystsmentioning

confidence: 99%

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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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“…It is reported that metal Ir possesses exceptional stability in acidic medium, thanks to high redox potential. Besides, Ir easily produces the −OH functional group at lower potential to prevent poisoning from CO for the remarkably improved catalyst activity and stability. − …”

Section: Introductionmentioning

confidence: 99%

Ir-Alloyed Ultrathin Ternary PdIrCu Nanosheet-Constructed Flower with Greatly Enhanced Catalytic Performance toward Formic Acid Electrooxidation

Zhao

Zhang

et al. 2018

ACS Appl. Mater. Interfaces

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Ternary metal-element alloys have been reported as efficient electrocatalysts toward various electrochemical reactions, but a unique three-dimensional (3D) Ir-alloyed ternary nanosheet-composed flower (NCF) structure has not been explored yet. Herein, an innovated 1.8 nm Ir-alloyed ultrathin ternary PdIrCu NCF structure is synthesized via one-pot solvothermal reduction without using any surfactant. The as-prepared PdIrCu/C NCF catalyst remarkably improves the stability than commercial Pd/C toward formic acid electrooxidation while resulting in significantly increased mass activity. The improvement of electrocatalytic properties depends on the introduction of Ir and Cu atoms, which greatly prevented poisoning from CO while modifying the electronic structure of Pd for increased reaction active sites and accelerated charge-transfer rate as well as facilitated mass transport by ultrathin NCF 3D structure. Therefore, this catalyst possesses a promising application prospect in electrochemical energy storage/conversion systems.

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Enhanced catalytic activity of ternary Pd-Ni-Ir nanoparticles supported on carbon toward formic acid electro-oxidation

Cited by 15 publications

References 33 publications

Bimetallic Palladium–Nickel Nanoparticles Anchored on Carbon as High-Performance Electrocatalysts for Oxygen Reduction and Formic Acid Oxidation Reactions

Bimetallic Palladium–Nickel Nanoparticles Anchored on Carbon as High-Performance Electrocatalysts for Oxygen Reduction and Formic Acid Oxidation Reactions

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

Ir-Alloyed Ultrathin Ternary PdIrCu Nanosheet-Constructed Flower with Greatly Enhanced Catalytic Performance toward Formic Acid Electrooxidation

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