Hydrogen, History of

Dunn, Seth

doi:10.1016/b0-12-176480-x/00039-5

Cited by 10 publications

(6 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…So far, 1D SnO 2 -based devices have been employed for sensing of various gas species such as H 2 , NO 2 , C 2 H 5 OH, H 2 S, CO and HCHO. ,,,,− Among these gas species, H 2 is one of the most prominent. It is a widely used gas in various industrial applications such as automotive industries, refining processes petroleum, fuel cells and biological systems. − However H 2 having the characteristics of being colorless, odorless, explosive, and extremely flammable gas with a low explosive limit of 4% in air is an important gas that should be constantly monitored in the aforementioned processes . As such, H 2 gas sensing at low temperatures is essential.…”

Section: Introductionmentioning

confidence: 99%

Electrospun Granular Hollow SnO₂ Nanofibers Hydrogen Gas Sensors Operating at Low Temperatures

et al. 2014

View full text Add to dashboard Cite

In this paper, we present H 2 gas sensors based on hollow and filled, wellaligned electrospun SnO 2 nanofibers, operating at a low temperature of 150 °C. SnO 2 nanofibers with diameters ranging from 80 to 400 nm have been successfully synthesized in which the diameter of the nanofibers can be controlled by adjusting the concentration of polyacrylonitrile in the solution for electrospinning. The presence of this polymer results in the formation of granular walls for the nanofibers. We discussed the correlation between nanofibers morphology, structure, oxygen vacancy contents and the gas sensing performances. X-ray photoelectron spectroscopy analysis revealed that the granular hollow SnO 2 nanofibers, which show the highest responses, contain a significant number of oxygen vacancies, which are favorable for gas sensor operating at low temperatures.

show abstract

Section: Introductionmentioning

confidence: 99%

Electrospun Granular Hollow SnO₂ Nanofibers Hydrogen Gas Sensors Operating at Low Temperatures

et al. 2014

View full text Add to dashboard Cite

show abstract

“…Hydrogen (H 2 ) has been regarded as a highly potential candidate for energy carrier of the next generation because of its high energy density per weight and environmentally benign properties of nonemission of green house gas and other harmful chemicals after burning. − Currently, H 2 supplied to the industries is produced by the steam reforming of nonrenewable hydrocarbons such as methane . A major byproduct of the steam reforming is carbon dioxide, which is a typical green house gas.…”

Section: Introductionmentioning

confidence: 99%

Robustness of Ru/SiO₂ as a Hydrogen-Evolution Catalyst in a Photocatalytic System Using an Organic Photocatalyst

2013

View full text Add to dashboard Cite

Effects of various metal oxide supports (SiO2, SiO2–Al2O3, TiO2, CeO2, and MgO) on the catalytic reactivity of ruthenium nanoparticles (RuNPs) used as a hydrogen-evolution catalyst have been evaluated in photocatalytic hydrogen evolution using 2-phenyl-4-(1-naphthyl)quinolinium ion (QuPh+–NA) and dihydronicotinamide adenine dinucleotide (NADH) as a photocatalyst and an electron donor, respectively. The 3 wt % Ru/SiO2 catalyst freshly prepared by an impregnation method exhibited the highest catalytic reactivity among RuNPs supported on various metal oxides, which was nearly the same as that of commercially available Pt nanoparticles (PtNPs) with the same metal weight. However, the initial catalytic reactivity of 3 wt % Ru/SiO2 was lost after repetitive use, whereas the catalytic reactivity of PtNPs was maintained under the same experimental conditions. The recyclability of the 3 wt % Ru/SiO2 was significantly improved by employing the CVD method for preparation. The initial catalytic reactivity of 0.97 wt % Ru/SiO2 prepared by the CVD method was higher than that of 2 wt % Ru/SiO2 prepared by the impregnation method despite the smaller Ru content. The total amount of evolved hydrogen normalized by the weight of Ru in 0.97 wt % Ru/SiO2 was 1.7 mol gRu –1, which is now close to that normalized by the weight of Pt in PtNPs (2.0 mol gPt –1). Not only the preparation method but also the morphology of SiO2 supports affected significantly the catalytic activity of Ru/SiO2. The Ru/SiO2 catalyst using nanosized SiO2 with undefined shape exhibited higher catalytic activity than Ru/SiO2 catalysts using mesoporous SiO2 or spherical SiO2. The kinetic study and TEM observation of the Ru/SiO2 catalysts suggest that the microenvironment of RuNPs on SiO2 surfaces plays an important role to exhibit the high catalytic performance in the photocatalytic hydrogen production.

show abstract

“…33 Based on Foley's observations, we can deduce that oral tradition is a communal process based on communal face-to-face experiences and memory. 34 As oral performances were enacted, the performers affectively engaged with the audiences. The performance hoped to bring about certain emotive responses as well as shape the audience in a form of paideia.…”

Section: Discipleship and Performancementioning

confidence: 99%

“…It also places the Jesus tradition in the memories of those he impacted such as his disciples as well as those he healed and taught. 5 Performance criticism has provided insight into the oral recitation or performance of Jesus' teachings to early Christian communities. 6 Through knowledge of ancient rhetoric and social contexts of performances, performance criticism has provided possible scenarios of how the Jesus tradition was performed and transmitted along with the possible production of the gospels such as Mark.…”

Section: Introductionmentioning

confidence: 99%

Performing Miracles: Discipleship and the Miracle Tradition of Jesus

Walker

2015

Transformation: An International Journal of Holistic Mission St

View full text Add to dashboard Cite

Utilizing memory, orality and performance this article posits a model of how the miracle tradition of Jesus may have been transmitted. What was spoken of and remembered, specifically, about Jesus' miracles provided faith and transformation in the discipleship process both during the life of Jesus and after. Jesus extended his ministry to The Twelve and others through calling them to participate in his Kingdom mission through imitating him in word and deed, particularly miracle working.

show abstract

Hydrogen, History of

Cited by 10 publications

References 3 publications

Electrospun Granular Hollow SnO₂ Nanofibers Hydrogen Gas Sensors Operating at Low Temperatures

Electrospun Granular Hollow SnO₂ Nanofibers Hydrogen Gas Sensors Operating at Low Temperatures

Robustness of Ru/SiO₂ as a Hydrogen-Evolution Catalyst in a Photocatalytic System Using an Organic Photocatalyst

Performing Miracles: Discipleship and the Miracle Tradition of Jesus

Contact Info

Product

Resources

About

Hydrogen, History of

Cited by 10 publications

References 3 publications

Electrospun Granular Hollow SnO2 Nanofibers Hydrogen Gas Sensors Operating at Low Temperatures

Electrospun Granular Hollow SnO2 Nanofibers Hydrogen Gas Sensors Operating at Low Temperatures

Robustness of Ru/SiO2 as a Hydrogen-Evolution Catalyst in a Photocatalytic System Using an Organic Photocatalyst

Performing Miracles: Discipleship and the Miracle Tradition of Jesus

Contact Info

Product

Resources

About

Electrospun Granular Hollow SnO₂ Nanofibers Hydrogen Gas Sensors Operating at Low Temperatures

Electrospun Granular Hollow SnO₂ Nanofibers Hydrogen Gas Sensors Operating at Low Temperatures

Robustness of Ru/SiO₂ as a Hydrogen-Evolution Catalyst in a Photocatalytic System Using an Organic Photocatalyst