The theoretical study of one-carbon unit transfer with H2O participation from imidazolidine to dUMP analogue

Qi, Chuan Song; Li, Wei; Wu, Xian; Xu, Lei; Feng, Du

doi:10.1016/j.cclet.2007.07.001

Search citation statements

Order By: Relevance

Paper Sections

Select...

Thermodynamics Cycle1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2015

Publication Types

Select...

Article1

Relationship

Self Cite1

Independent0

Authors

Journals

Cited by 1 publication

(1 citation statement)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To get the standard molar reaction enthalpy (∆ f H m ) of the ZnO nano-particles with size of 50 nm, a thermodynamic cycle [12,13] is designed as shown in Fig. 1.…”

Section: Thermodynamics Cyclementioning

confidence: 99%

The Standard Formation Enthalpies of Spherical ZnO Nano-Particles: Size Matters

Wang

2015

AMR

Self Cite

View full text Add to dashboard Cite

Four kinds of spherical nanoZnO particles with diameter of 20 nm, 30 nm, 40 nm and 50 nm were characterized by XRD and SEM. Based on a thermodynamic cycle, the standard molar formation enthalpies (ΔfHm) were measured and calculated by the RD496-2000 micro-calorimeter. They are (-328.41±1.575) kJ·mol–1 (50 nm), (-323.11 ± 1.579) kJ·mol–1 (40 nm), (-313.47 ± 1.581) kJ·mol–1 (30 nm), (-307.66 ±1.616) kJ·mol–1 (20 nm). The results show that nanosized ZnO has higher standard molar formation enthalpy compared to that of bulk ZnO (–350.46 ± 0.27 kJ·mol–1), indicating that the stability of nanosized ZnO decreases. More interestingly, the results show that the smaller size of the ZnO nanoparticles, the higher standard molar formation enthalpy was obtained. This indicates that ZnO nanoparticles get destabilized when the size decreases. The value of the standard molar formation enthalpies y (kJ·mol–1) and size x (nm) can be approximately described by a linear function of y = –0.7189 x –293.

show abstract

“…To get the standard molar reaction enthalpy (∆ f H m ) of the ZnO nano-particles with size of 50 nm, a thermodynamic cycle [12,13] is designed as shown in Fig. 1.…”

Section: Thermodynamics Cyclementioning

confidence: 99%

The Standard Formation Enthalpies of Spherical ZnO Nano-Particles: Size Matters

Wang

2015

AMR

Self Cite

View full text Add to dashboard Cite

show abstract

The theoretical study of one-carbon unit transfer with H2O participation from imidazolidine to dUMP analogue

Cited by 1 publication

References 4 publications

The Standard Formation Enthalpies of Spherical ZnO Nano-Particles: Size Matters

The Standard Formation Enthalpies of Spherical ZnO Nano-Particles: Size Matters

Contact Info

Product

Resources

About