Physical Chemistry from a Different Angle

Job, Georg; Rüffler, Regina

doi:10.1007/978-3-319-15666-8

Cited by 23 publications

(39 citation statements)

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“…N is the main component of the Earth atmosphere, but its abundance does not mean that it is easily available: every living species needs N, but only a few can pick it up from the atmosphere, due to its chemical stability. It is interesting to compare the Gibbs energy or chemical potentials for the formation of various nitrogen simple compounds that is often positive, to the corresponding carbon compounds 25 (Table 1). If this was not the case, N would spontaneously burn in the atmosphere.…”

Section: Nitrogenmentioning

confidence: 99%

Npk: Essentials for Sustainability

Galembeck¹,

Galembeck²,

Santos³

2019

Quím. Nova

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Human population growth and development has been largely dependent on non-renewable natural resources, which cannot be indefinitely sustained. Beyond, coal and other abundant resources cannot continue to be used at current rates due to their impact on the environment and climate. It is thus important to replace as much as possible the fossil fuels and scarce minerals as sources of energy and industrial raw materials. Biomass plays a key role in this scenario, since its availability depends on abundant but often misused resources: air, water, sunlight and land. The "oil shocks", the recognition of impending resource shortages, the global pollution and climate change led many governments and organizations to create roadmaps to Bioeconomy. This includes the growing use of plants and animals to produce energy and raw materials, but it cannot create food scarcity. Agriculture depends on the plant macronutrients N, P and K, and this article discusses their role in plant and animal growth, production and consumption, dependence on nonrenewable minerals and energy and perspectives for increasing their efficiency. Special attention is given to Brazilian agriculture that is heavily dependent on imported NPK, requiring strategic action and research.

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Section: Nitrogenmentioning

confidence: 99%

Npk: Essentials for Sustainability

Galembeck¹,

Galembeck²,

Santos³

2019

Quím. Nova

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“…Experimental chemical potential change used in this paper is defined as the same as in a standard Physical Chemistry book [ 43 ], namely:

where γ E and γ w are activity coefficients for ethanol and water, respectively (they are functions of temperature and composition change), and x E is the molar fraction of ethanol in the ethanol-water mixture. The quantities γ E and γ w can be calculated by using the DDB Software Package [ 44 ].…”

Section: Appendix A1 Raw Data Of Swollen Thickness Of Pnipaam Brushmentioning

confidence: 99%

Cononsolvency Transition of Polymer Brushes: A Combined Experimental and Theoretical Study

et al. 2018

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In this study, the cononsolvency transition of poly(N-isopropylacrylamide) (PNiPAAm) brushes in aqueous ethanol mixtures was studied by using Vis-spectroscopic ellipsometry (SE) discussed in conjunction with the adsorption-attraction model. We proved that the cononsolvency transition of PNiPAAm brushes showed features of a volume phase transition, such as a sharp collapse, reaching a maximum decrease in thickness for a very narrow ethanol volume composition range of 15% to 17%. These observations are in agreement with the recently published preferential adsorption model of the cononsolvency effect.

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“…This equation, as well as  K , gives an incorrect estimation of CPD, since electrostatic, kinetic, exchange, and correlation components of electron gas were not taken into account when it was derived [8,12]. According to [10], at room temperature, the inequality must be satisfied:  int  ext ,  K  ext . However, the calculations based on the above ratios show that, for most of the contacting metal pairs, it is not fulfilled.…”

Section: Introductionmentioning

confidence: 99%

The Peculiarities of Contact Potential Difference and Energy Characteristics of Metal Boundaries

2017

Nanosist. Nanomater. Nanotehnol.

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 2017 ІÌÔ (Іíñòèòóò ìåòàëîôіçèêè іì. Ã. Â. Êóðäþìîâà ÍÀÍ Óêðàїíи) Надруковано в Óкраїні. Ôотокопіювання дозволено тільки відповідно до ліцензії 704 V. M. YUZEVICH, B. P. KOMAN, and R. DZHALA межфазных слоёв: межфазной энергии W m , межфазного натяжения  m и энергии адгезионных связей W ad для контактирующих металлов Cr, Fe, Al, Ni, Cu, Zn, Ti, Sn, Pb. Проведена оценка внутренней контактной разности потенциалов  Y (КРП) между металлами с учётом энергетических параметров межфазного слоя. Проведено сравнение полученных оценок КРП с аналогичными, полученными с помощью известных методик.

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Physical Chemistry from a Different Angle

Cited by 23 publications

References 0 publications

Npk: Essentials for Sustainability

Npk: Essentials for Sustainability

Cononsolvency Transition of Polymer Brushes: A Combined Experimental and Theoretical Study

The Peculiarities of Contact Potential Difference and Energy Characteristics of Metal Boundaries

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