Iron phthalocyanine as a cathode catalyst for a direct borohydride fuel cell

Ma, Jingtan; Wang, Jin; Liu, Yongning

doi:10.1016/j.jpowsour.2007.07.031

Cited by 62 publications

(26 citation statements)

References 24 publications

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“…Early studies in 1965 (11) recognised the potential of borohydride ion as a fuel and intensive research has been carried out in recent years (12)(13)(14). Various metals have been evaluated in the search for an efficient and economic catalyst to realize the 8-electron oxidation of the borohydride ion; these include: Pt (15), Pd (16), Au (17), Os (18), Ag (19)(20), Cr-Ru, Ni-Ru, Pt-Ru (21) and Misch metal alloys (22).…”

Section: Introductionmentioning

confidence: 99%

Oxidation of the Borohydride Ion at Silver Nanoparticles on a Glassy Carbon Electrode (GCE) Using Pulsed Potential Techniques

Hernández-Ramírez¹,

Alatorre-Ordaz²,

Yépez-Murrieta³

et al. 2009

ECS Trans.

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Direct oxidation borohydride fuel cells are very attractive energy conversion devices. Silver has been reported as one of the few materials which can catalyze an 8-electron oxidation. Potential step amperometric pulse techniques to synthesize nanostructured silver material on flat glassy carbon electrodes is reported and significant differences with bulk silver deposit have been observed. The oxidation of borohydride ion on the silver particles occurs at -0.025 V vs. SCE and the potential decreases towards negative values at longer cycle times. The oxidation current also decreases with the number of cycles, suggesting that the silver active sites become partially blocked by oxidation products of borohydride. The electroactive area per unit electrode area of silver was relatively low for particles deposited using potential step amperometric techniques on glassy carbon (0.002 cm2 per cm-2) compared with the area found at a polycrystalline silver electrode (0.103 cm2 per cm-2).

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Section: Introductionmentioning

confidence: 99%

Oxidation of the Borohydride Ion at Silver Nanoparticles on a Glassy Carbon Electrode (GCE) Using Pulsed Potential Techniques

Hernández-Ramírez¹,

Alatorre-Ordaz²,

Yépez-Murrieta³

et al. 2009

ECS Trans.

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“…Indeed, membraneless DBFCs have been described [9][10][11] and manganese dioxide catalysed cathode was used in them. In addition, membraneless DBFCs have been designed by using metal phthalocyanines in our previous works [12,13].…”

Section: Introductionmentioning

confidence: 99%

A Membraneless Direct Borohydride Fuel Cell Using LaNiO₃‐Catalysed Cathode

Liu

Yan

et al. 2008

Fuel Cells

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Direct borohydride fuel cell (DBFC) is one of the most exciting energy technologies that solve the hydrogen storage and safety issues by using aqueous solution of KBH4 or NaBH4. Here, we present a membraneless DBFC with perovskite‐type oxide LaNiO3/C‐catalysed cathode. A significant finding from the electrochemical experiments is that it obviously shows that the existence of $ {\rm BH}_4^- $ ions has almost no negative influence on the discharge performances of the LaNiO3‐catalysed cathode. Therefore, the DBFC is designed without using an ion exchange membrane. The maximal power density of 127 mW cm–2 is obtained at 65 °C under atmospheric pressure. A 500 h life test shows that the DBFC has good stability.

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“…Recent researches reveal that CoPc not only exhibits considerable electrocatalyic activity toward ORR, but also demonstrates high tolerance toward fuel crossover in direct fuel cells like DMFC or DBFC [43,44]. Addition of CoPc in Pt/C cathode improved the methanol tolerance of the cathode in the DMFC [43] because CoPc modified Pt/C demonstrated higher methanol oxidation current than the unmodified Pt/C as shown in Fig.…”

Section: As Cathode Catalystsmentioning

confidence: 96%

“…5. Ma et al [44] found that CoPc not only exhibited considerable electrocatalytic activity toward ORR in a DBFC, but also demonstrated high resistance against BH 4 -influence on cathode performance. They successfully constructed a fuel cell without using membrane to separate the anolyte (alkaline NaBH 4 solution) from the cathode.…”

Section: As Cathode Catalystsmentioning

confidence: 99%

The use of macrocyclic compounds as electrocatalysts in fuel cells

Liu

2009

J Appl Electrochem

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Macrocyclic compounds such as metallophthalocyanines demonstrated good catalytic activities toward electrochemical reactions. The characteristics of the central cations in metallophthalocyanines significantly influenced their electrocatalytic activities. Addition of conjugated polymers in electrodes improved the electrocatalytic activity by enhancing the electric conductivity. The electrocatalytic activities of macrocyclic compounds could be further improved by heat treatment. The formation of metallic clusters or metal containing organic fragments after pyrolyzing played an important role in improving electrocatalytic activities of macrocyclic compounds. It was considered that macrocyclic compounds might be functioned as a precursor to obtain well-distributed metallic clusters or metal containing organic fragments.

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Iron phthalocyanine as a cathode catalyst for a direct borohydride fuel cell

Cited by 62 publications

References 24 publications

Oxidation of the Borohydride Ion at Silver Nanoparticles on a Glassy Carbon Electrode (GCE) Using Pulsed Potential Techniques

Oxidation of the Borohydride Ion at Silver Nanoparticles on a Glassy Carbon Electrode (GCE) Using Pulsed Potential Techniques

A Membraneless Direct Borohydride Fuel Cell Using LaNiO₃‐Catalysed Cathode

The use of macrocyclic compounds as electrocatalysts in fuel cells

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Iron phthalocyanine as a cathode catalyst for a direct borohydride fuel cell

Cited by 62 publications

References 24 publications

Oxidation of the Borohydride Ion at Silver Nanoparticles on a Glassy Carbon Electrode (GCE) Using Pulsed Potential Techniques

Oxidation of the Borohydride Ion at Silver Nanoparticles on a Glassy Carbon Electrode (GCE) Using Pulsed Potential Techniques

A Membraneless Direct Borohydride Fuel Cell Using LaNiO3‐Catalysed Cathode

The use of macrocyclic compounds as electrocatalysts in fuel cells

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A Membraneless Direct Borohydride Fuel Cell Using LaNiO₃‐Catalysed Cathode