Use of a nuclear microprobe in the study of fuel cell electrodes

Hyde, Peter Alden; Maggiore, C.J.; Srinivasan, S.

doi:10.1016/0368-1874(84)87111-7

Cited by 15 publications

(4 citation statements)

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“…As the element analysis in Table S2 of the Supporting Information shows, three 8 h runs result in a relatively small ∼4–7% metal leaching. This loss is unavoidable and is consistent with prior works. , …”

supporting

confidence: 93%

“…This loss is unavoidable and is consistent with prior works. 48,49 Under the standard conditions, product distributions over H-ZSM-5, Pt/H-ZSM-5, and Pd/H-ZSM-5 are shown in Table 1 which describes that there are always more than 10 components in products, including unreacted glycerol, oxygenates, gases, and aromatics, where aromatics are the target products as hydrocarbon fuels. Without loading metals, H-ZSM-5 alone converts glycerol primarily to oxygenates (mainly acrolein), while the C 6 −C 8 aromatics' yield is ∼11%.…”

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confidence: 99%

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Conversion of Glycerol to Hydrocarbon Fuels via Bifunctional Catalysts

Xiao

Varma

2016

ACS Energy Lett.

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Utilization of byproduct glycerol improves biodiesel production in terms of both economics and sustainability. Conversion of glycerol to hydrocarbon (GTH) fuels is among the promising options, which provides additional renewable energy besides biodiesel and contributes further to independence from fossil fuels. In the present work, bifunctional catalysts (Pt/H-ZSM-5 and Pd/H-ZSM-5) were selected, prepared, characterized, and tested for GTH conversion. The addition of noble metals enhances aromatics’ yield, and both catalysts convert GTH fuels effectively. On the basis of the experimental observations and prior literature, it is proposed that GTH conversion follows sequential hydrodeoxygenation and aromatization steps. Under optimized conditions, ∼90% glycerol conversion and ∼60% yield of aromatic hydrocarbons were achieved over the Pd/H-ZSM-5 catalyst.

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supporting

confidence: 93%

mentioning

confidence: 99%

Conversion of Glycerol to Hydrocarbon Fuels via Bifunctional Catalysts

Xiao

Varma

2016

ACS Energy Lett.

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“…When the agglomeration of platinum particle proceeds by dissolution and redeposition, the possibility of redeposition of the dissolved platinum at the anode is considered in the practical fuel cell. Hyde et al (17) showed exactly this phenomenon.…”

Section: Resultsmentioning

confidence: 78%

“…Hyde et al (17) determined the platinum distribution in fuel cell electrodes using Rutherford backscattering. About 10 w/o of the platinum was lost from the matrix side of the active layer of the cathode after 4500h.…”

Section: Resultsmentioning

confidence: 99%

Agglomeration of Platinum Particles Supported on Carbon in Phosphoric Acid

Honji

Mori

Tamura

et al. 1988

J. Electrochem. Soc.

150

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The growth of platinum particle supported on an acetylene black was investigated fundamentally using a potential perturbation method in phosphoric acid at 205°C and atmospheric pressure. Platinum particles in a colony were agglomerated to form one particle depending on the potential of the electrode and number of particles in the colony. Platinum dissolution and redeposition were considered to be the main reasons for the agglomeration.

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