Til hovedinnhold

Duncan Akporiaye

Forskningsdirektør

Duncan Akporiaye

Forskningsdirektør

Duncan Akporiaye
Telefon: 930 59 166
Mobil: 930 59 166
Avdeling: MK Administrasjon
Kontorsted: Oslo

Publikasjoner og ansvarsområder

Publikasjoner

Publikasjon

Structural changes in SAPO-34 due to hydrothermal treatment. A NMR, XRD, and DRIFTS study

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1354948

When SAPO-34 is used as an industrial MTO catalyst, structural transformations leading to permanent deactivation are inevitable. The performance loss is linked principally to a redistribution of Si in the material, leading to the formation of Si-islands/aggregates with a concomitant loss of Brønsted...

Forfattere Arstad Bjørnar Lind Anna Maria Cavka Jasmina Hafizovic Thorshaug Knut Akporiaye Duncan Wragg David Fjellvåg Helmer Grønvold Arne Fuglerud Terje
År 2016
Type Tidsskriftsartikkel
Publikasjon

CHA/AEI intergrowth materials as catalysts for the Methanol-to-Olefins process

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1280612

A series of SAPO-34/SAPO-18 intergrowth materials were prepared with a range of silicon content from 0.5 to 7.0%, where low levels of silicon resulted in SAPO-18 and higher levels resulted in CHA/AEI intergrowths. These materials were tested for their performance in the Methanol-to-Olefins reaction....

Forfattere Smith Rachel Svelle Stian Del Campo Pablo Fuglerud Terje Arstad Bjørnar Lind Anna Maria Chavan Sachin Maruti Attfield Martin P. Akporiaye Duncan Anderson Michael W.
År 2015
Type Tidsskriftsartikkel
Publikasjon

Nanoporous Intergrowths: How Crystal Growth Dictates Phase Composition and Hierarchical Structure in the CHA/AEI System

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1260838

Some of the most important nanoporous materials that are used for industrial applications are formed as intergrowths between structurally related phases. Further, the specific properties and functions are often strongly related to the nature of these intergrowths. By their nature such structures are...

Forfattere Smith Rachel L. Slawinski Wojciech Andrzej Lind Anna Maria Wragg David Cavka Jasmina Hafizovic Arstad Bjørnar Fjellvåg Helmer Attfield Martin P. Akporiaye Duncan Anderson Michael W.
År 2015
Type Tidsskriftsartikkel
Publikasjon

Anatomy of screw dislocations in nanoporous SAPO-18 as revealed by atomic force microscopy

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1249007

Defects in solids are often the source of functional activity, the trigger for crystal growth and the seat of instability. Screw dislocations are notoriously difficult to study by electron microscopy. Here we decipher the complex anatomy of one such defect in the industrially important nanoporous ca...

Forfattere Smith Rachel L. Lind Anna Maria Akporiaye Duncan Attfield Martin P. Anderson Michael W.
År 2015
Type Tidsskriftsartikkel
Publikasjon

In-Situ Atomic Force Microscopy Study of the Dissolution of Nanoporous SAPO-34 and SAPO-18

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1312554

In-situ atomic force microscopy has been used to investigate the dissolution behavior of industrially relevant silicoaluminophosphate catalysts SAPO-34 and SAPO-18. Spiral growth is prevalent on these materials and it is common for the spirals to be composites of multiple dislocation sources. The sp...

Forfattere Smith Rachel L. Cavka Jasmina Hafizovic Lind Anna Maria Akporiaye Duncan Attfield Martin P. Anderson Michael W.
År 2015
Type Tidsskriftsartikkel
Vis alle publikasjoner