An effective Pd@Ni-B/C anode catalyst for electro-oxidation of formic acid

He, Nan; Gong, Yafeng; Yang, Yidi; Wang, Yi; Qin, Chuanguang; Wang, Rumin; Liu, Jiehua; Qi, Tao

doi:10.1016/j.ijhydene.2017.12.167

Cited by 23 publications

(8 citation statements)

References 36 publications

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“…Recently, transitional metal phosphides have gained importance in electrochemical energy conversion because of their low cost, wide availability, stability, and synergistic effects (Feng & Xue, 2017; Pei et al, 2018). They have been reported as efficient promoters of FAEO and offer high stability in acidic conditions (N. He et al, 2018; Kucernak et al, 2016). Wang et al observed that the dynamic stability of Pd‐Ni 2 P was found to be much higher than that of Pd catalysts because the Ni 2 P could depress the poisoning effect and restrain the aggregation and prevention of the Ostwald ripening of the catalysts.…”

Section: Anode Electrocatalystsmentioning

confidence: 99%

Recent advances in electrocatalysts, mechanism, and cell architecture for direct formic acid fuel cells

Bhaskaran

Abraham²,

Chetty³

2021

WIREs Energy & Environment

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Direct formic acid fuel cells (DFAFCs) are potential candidates as power sources for various applications, especially in portable electronics and medical diagnostic devices. Though they have been the subject of considerable research, commercial prototypes of DFAFCs are rudimentary compared to other liquid fuel cells, particularly the widespread methanol‐based direct methanol fuel cells. Various strategies for rationally engineering the electrocatalysts for enhancing DFAFC performance have been explored in the last few years, such as alloying noble metals with earth‐abundant transition metals, designing specific morphological and structural arrangements, decorating the surface with corrosion‐tolerant cocatalysts, and providing better catalyst support for effective catalyst dispersion. An overall approach may be necessary and should include (i) understanding the underlying mechanism, which will guide the direction of catalyst engineering, (ii) employing morphological, compositional, and structural control of the electrocatalysts to improve catalyst utilization and enhance the intrinsic activity for real‐world applications, and (iii) integrating these in a proficiently designed cell architecture suitable for targeted applications. In this review, we focus on the recent advances in electrocatalysts, formic acid electrooxidation mechanisms, and DFAFC cell architectures, which could help address the opportunities and challenges of commercializing DFAFC as a prospective alternative power source for portable applications. This article is categorized under: Fuel Cells and Hydrogen > Science and Materials Energy Research & Innovation > Science and Materials

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Section: Anode Electrocatalystsmentioning

confidence: 99%

Recent advances in electrocatalysts, mechanism, and cell architecture for direct formic acid fuel cells

Bhaskaran

Abraham²,

Chetty³

2021

WIREs Energy & Environment

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“…85 Literature studies revealed that second metal addition to Pd increased the activity of FAEO. 86 Pd, 87,88 PdNi, 89 Au-Pd, 90 Pd-Ga, 91 PdCu, 92 and Pd-Ru 93 nanocatalysts were examined and reported that the addition of the second metal to Pd enhances the electrocatalytic activity.…”

Section: Introductionmentioning

confidence: 99%

The preparation, characterization, and electrooxidation of colloidal palladium modified poly(methacrylic acid) hydrogel as formic acid fuel cell anode catalyst

et al. 2021

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At present, poly(methacrylic acid) (MA), poly(MA) hydrogel, and Pd-doped poly(MA) hydrogel modified electrodes are constructed on graphite pencil (G).The Pd precursor is coated on the poly(MA)/G electrodes surface using the electrodeposition method. These electrodes are characterized by thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy, and scanning electron microscopy-energy dispersive X-ray. Poly(MA) hydrogel and Pd-doped poly(MA) hydrogel are successfully prepared by the polymerization and further electrodeposition. Formic acid electro-oxidation (FAEO) activities are examined with cyclic voltammetry (CV), chronoamperometry (CA), and electrochemical impedance spectroscopy (EIS). Poly(MA)/G and Pd doped poly(MA) electrodes exhibit promising electro-catalytic activity with 60 mA current density, greater than literature values. Pd-doped poly(MA) hydrogel electrodes are promising electrodes for FAEO.

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“…In the literature, many methods have been proposed for the design of more active and stable Pd anode catalysts in which an increase in CO poisoning tolerance is targeted. Second metal addition is one of the most commonly used methods to improve the catalyst activity by utilizing the synergistic effect between metals . Additionally, geometric and electronic structure of Pd can be optimized by the addition of a second metal .…”

Section: Introductionmentioning

confidence: 99%

“…Second metal addition is one of the most commonly used methods to improve the catalyst activity by utilizing the synergistic effect between metals. [28][29][30][31][32][33] Additionally, geometric and electronic structure of Pd can be optimized by the addition of a second metal. 34 Since Pd is an expensive metal, observing the positive effect of Pd on FAE activity even at very low molar ratio is another advantage provided by Pd-based bimetallic catalysts.…”

Section: Introductionmentioning

confidence: 99%

Determination of optimum Pd:Ni ratio for Pd _x Ni _{100‐
x} / CNT s formic acid electrooxidation catalysts synthesized via sodium borohydride reduction method

2019

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Summary The main purpose of this study is to investigate the optimum Pd:Ni molar ratio for carbon nanotube–supported PdNi (PdxNi100‐x/CNT) alloy catalysts toward formic acid electrooxidation (FAE). NaBH4 reduction method was employed for the synthesis of Pd90Ni10/CNT, Pd70Ni30/CNT, Pd50Ni50/CNT, and Pd40Ni60/CNT. Synthesized catalysts were characterized by employing advanced surface analytical techniques, namely, X‐ray diffraction (XRD), transmission electron microscopy (TEM), N2 adsorption‐desorption, and inductively coupled plasma–mass spectrometry (ICP‐MS). The characterization results showed that all catalysts were successfully synthesized at desired molar composition. Pd90Ni10/CNT displayed the highest specific and mass activities with 2.32 mA/cm2 and 613.9 mA/mg Pd, respectively. Specific activity of the Pd90Ni10/CNT was found approximately 3.6, 2.3, 11.1, and 3.4 times higher than those of Pd70Ni30/CNT, Pd50Ni50/CNT, Pd40Ni60/CNT, and Pd/CNT, respectively. The synergistic effect between Pd and Ni at optimized metal ratio was utilized to obtain an improvement in specific activity. Furthermore, Pd90Ni10/CNT showed the lowest charge transfer resistance (Rct) and a long‐term stability. To our knowledge, this is the first study reporting the optimization of atomic molar composition for PdxNi100‐x/CNT catalysts toward FAE.

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An effective Pd@Ni-B/C anode catalyst for electro-oxidation of formic acid

Cited by 23 publications

References 36 publications

Recent advances in electrocatalysts, mechanism, and cell architecture for direct formic acid fuel cells

Recent advances in electrocatalysts, mechanism, and cell architecture for direct formic acid fuel cells

The preparation, characterization, and electrooxidation of colloidal palladium modified poly(methacrylic acid) hydrogel as formic acid fuel cell anode catalyst

Determination of optimum Pd:Ni ratio for Pd _x Ni _{100‐
x} / CNT s formic acid electrooxidation catalysts synthesized via sodium borohydride reduction method

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An effective Pd@Ni-B/C anode catalyst for electro-oxidation of formic acid

Cited by 23 publications

References 36 publications

Recent advances in electrocatalysts, mechanism, and cell architecture for direct formic acid fuel cells

Recent advances in electrocatalysts, mechanism, and cell architecture for direct formic acid fuel cells

The preparation, characterization, and electrooxidation of colloidal palladium modified poly(methacrylic acid) hydrogel as formic acid fuel cell anode catalyst

Determination of optimum Pd:Ni ratio for Pd x Ni 100‐ x / CNT s formic acid electrooxidation catalysts synthesized via sodium borohydride reduction method

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Determination of optimum Pd:Ni ratio for Pd _x Ni _{100‐
x} / CNT s formic acid electrooxidation catalysts synthesized via sodium borohydride reduction method