الأحد 27 نوفمبر 2022م 442032497000+ sacbuk@uk.moe.gov.sa

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442032497000+ sacbuk@uk.moe.gov.sa
الرئيسية / أمل أحمد الطلحي

أمل أحمد الطلحي

14 مايو 2013م

أمل أحمد الطلحي
دكتوراه
علوم فيزيائية - الفيزياء الكيميائية
University of Hull

النوع
التميز

تميز
دراسي وبحثي

 

 

البحوث المنشورة

 

البحث (1):

 

عنوان البحث:

Wastewater as a photoelectrochemical
fuel source: Light-to-electrical energy conversion with
organochloride remediation

رابط الوصول:

Link

تاريخ النشر:

30/04/2012

موجز عن البحث:

A
photogalvanic cell that employs 2,4-dichlorophenol as a fuel source, an
N-substituted phenothiazine as light harvester, and sacrificial zinc anode is
presented, and shown to afford a ca. 4% light-to-electrical power conversion
efficiency in violet light. 

 

 

البحث (2): 

 

عنوان البحث:

Concentration-dependent diffusion
coefficients of tert-butylferrocene within dodecyltrimethylammonium
chloride/brine liquid crystals

رابط الوصول:

Link

تاريخ النشر:

19/01/2012

موجز عن البحث:

The title lyotropic liquid crystal is
examined as a framework to investigate long-range charge transfer, using
tert-butylferrocene (tBuFc) as model hydrophobic system. It is found that the
apparent one-dimensional diffusion coefficient depends on the tBuFc loading.
It is suggested that an efficient relay mechanism for electron transfer is
through the partitioning of the oxidised form between the two subphases, with
inter-pseudophase reaction.

 

 

البحث (3):

 

عنوان البحث:

Voltammetry within structured liquid
nanosystems: Towards the design of a flexible, three-dimensional framework
for artificial photosystems

رابط الوصول:

Link

تاريخ النشر:

13/03/2013

موجز عن البحث:

Normal lyotropic liquid crystals (in the
lamellar or hexagonal phases) are investigated as a route to afford a
structured, three-dimensional, quasi-biphasic framework within which electron
transfer cascades may be initiated voltammetrically. For model systems, we
show that these can take place through reagent partitioning between the
hydrophobic and hydrophilic subphases, and illustrate how the structure and
its orientation, the nature of the ionic doping of the framework, and the
hydrophobicity of the redox analyze may give rise to changes in the observed
voltammetric waveshape. For the case of an artificial mimic of the first few
stages of Photosystem I, we demonstrate that photo-induced electron transfer
is likewise affected by the orientation, and develop a system of photon
efficiency of 0.1%.

 

 

المؤتمرات العلمية:

 

المؤتمر (1):

 

عنوان المؤتمر:

The 6th  Saudi Scientific International
Conference-London

 

تاريخ الإنعقاد:

Oct 2012

بلد
ومكان الإنعقاد:

UK

طبيعة المشاركة:

Oral presentation

عنوان المشاركة:

Wastewater as a Photoelectrochemical
Fuel Source Light-to-Electrical Energy Conversion with Organochloride
Remediation

 

الملخص:

Oral
presentation about (Wastewater as a Photoelectrochemical Fuel Source
Light-to-Electrical Energy Conversion with Organochloride Remediation.

 

A
photogalvanic cell that employs 2,4-dichlorophenol as a fuel source, an
N-substituted phenothiazine as light harvester, and sacrificial zinc anode is
presented, and shown to afford a ca. 4% light-to-electrical power conversion
efficiency in violet light.

 

المؤتمر (2):

 

عنوان المؤتمر:

Great Western Electrochemistry Meeting-Bath

تاريخ الإنعقاد:

June 2012

بلد
ومكان الإنعقاد:

UK

طبيعة المشاركة:

Oral Presentation

عنوان المشاركة:

Concentration-dependent
diffusion coefficients of tert-butylferrocene jwithin
dodecyltrimethylammonium chloride/brine liquid crystals

الملخص:

 

Oral
Presentation about Concentration-dependent diffusion coefficients of
tert-butylferrocene within dodecyltrimethylammonium chloride/brine liquid
crystals.

 

The
title lyotropic liquid crystal is examined as a framework to investigate
long-range charge transfer, using tert-butylferrocene (tBuFc) as model
hydrophobic system. It is found that the apparent one-dimensional diffusion
coefficient depends on the tBuFc loading. It is suggested that an efficient
relay mechanism for electron transfer is through the partitioning of the
oxidised form between the two subphases, with inter-pseudophase reaction.

 

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