Change search
Link to record
Permanent link

Direct link
BETA
Sterte, Johan
Publications (10 of 109) Show all publications
Sterte, J. (2016). Foreword (Vice Chancellor, LTU). In: Bhattacharya, Prosun; Vahter, Marie; Jarsjo, Jerker; Kumpiene, Jurate; Charlotte, Sparrenbom (Ed.), Arsenic Research and Global Sustainability: Proceedings of the 6th International Congress on Arsenic in the Environment, AS 2016. Paper presented at 6th International Congress on Arsenic in the Environment, AS 2016, Stockholm, 19-23 June 2016 (pp. xli-xlii). London: CRC Press
Open this publication in new window or tab >>Foreword (Vice Chancellor, LTU)
2016 (English)In: Arsenic Research and Global Sustainability: Proceedings of the 6th International Congress on Arsenic in the Environment, AS 2016 / [ed] Bhattacharya, Prosun; Vahter, Marie; Jarsjo, Jerker; Kumpiene, Jurate; Charlotte, Sparrenbom, London: CRC Press, 2016, p. xli-xliiConference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
London: CRC Press, 2016
Series
Arsenic in the environment., Proceedings
National Category
Chemical Process Engineering
Research subject
Chemical Technology
Identifiers
urn:nbn:se:ltu:diva-63074 (URN)2-s2.0-85016993596 (Scopus ID)9781315629438 (ISBN)
Conference
6th International Congress on Arsenic in the Environment, AS 2016, Stockholm, 19-23 June 2016
Available from: 2017-04-19 Created: 2017-04-19 Last updated: 2017-11-24Bibliographically approved
Wang, Z., Grahn, M., Lidström-Larsson, M., Holmgren, A., Hedlund, J. & Sterte, J. (2006). Zeolite coated ATR crystal probes (ed.). Paper presented at . Sensors and actuators. B, Chemical, 115(2), 685-690
Open this publication in new window or tab >>Zeolite coated ATR crystal probes
Show others...
2006 (English)In: Sensors and actuators. B, Chemical, ISSN 0925-4005, E-ISSN 1873-3077, Vol. 115, no 2, p. 685-690Article in journal (Refereed) Published
Abstract [en]

Thin and well-defined MFI type molecular sieve films were grown on a range of ATR crystals by employing a seeding method. The type of ATR crystal does not influence film morphology. FTIR spectroscopy was used to evaluate the coated ATR crystals as sensor probes. These novel sensor probes could be used to detect low concentrations of organic molecules in a gas flow.

National Category
Chemical Process Engineering Metallurgy and Metallic Materials Physical Chemistry
Research subject
Chemical Technology; Process Metallurgy; Physical Chemistry
Identifiers
urn:nbn:se:ltu:diva-12824 (URN)10.1016/j.snb.2005.10.039 (DOI)000237761000018 ()2-s2.0-33646236901 (Scopus ID)bf9ca610-d625-11db-8550-000ea68e967b (Local ID)bf9ca610-d625-11db-8550-000ea68e967b (Archive number)bf9ca610-d625-11db-8550-000ea68e967b (OAI)
Note
Validerad; 2006; 20070319 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Naydenov, V., Tosheva, L., Antzutkin, O. & Sterte, J. (2005). Meso/macroporous AlPO-5 spherical macrostructures tailored by resin templating (ed.). Paper presented at . Microporous and Mesoporous Materials, 78(2-3), 181-188
Open this publication in new window or tab >>Meso/macroporous AlPO-5 spherical macrostructures tailored by resin templating
2005 (English)In: Microporous and Mesoporous Materials, ISSN 1387-1811, E-ISSN 1873-3093, Vol. 78, no 2-3, p. 181-188Article in journal (Refereed) Published
Abstract [en]

A multi-step procedure for the preparation of meso/macroporous AlPO-5 spherical macrostructures using cation exchange resin beads as macrotemplates is presented. Firstly, aluminum species were introduced into the resin beads by ion exchange resulting in a resin-aluminum composite. Thereafter, the resin-aluminum composite was mixed with TEAOH, H3PO4 and distilled water and hydrothermally treated at 150 °C to yield resin-AlPO-5 composite. Finally, the resin was removed by calcination leaving behind self-bonded AlPO-5 spheres. The product AlPO-5 macrostructures were thoroughly characterized by SEM, XRD, nitrogen adsorption measurements, 31P and 27Al solid state NMR spectroscopy. The influence of various components of the synthesis mixture on the crystallinity, phase purity and stability of the AlPO-5 spheres was systematically studied. Samples prepared for different treatment times using the initial synthesis composition that gives spheres of the highest quality were used to study the crystallization process within the resin.

National Category
Physical Chemistry
Research subject
Chemistry of Interfaces
Identifiers
urn:nbn:se:ltu:diva-7590 (URN)10.1016/j.micromeso.2004.10.008 (DOI)000227164100010 ()2-s2.0-13444252264 (Scopus ID)5f9a3930-d869-11db-a1bf-000ea68e967b (Local ID)5f9a3930-d869-11db-a1bf-000ea68e967b (Archive number)5f9a3930-d869-11db-a1bf-000ea68e967b (OAI)
Note
Validerad; 2005; 20060914 (bajo)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Naydenov, V., Tosheva, L. & Sterte, J. (2005). Self-bonded zeolite beta/MCM-41 composite spheres (ed.). Paper presented at . Journal of porous materials, 12(3), 193-199
Open this publication in new window or tab >>Self-bonded zeolite beta/MCM-41 composite spheres
2005 (English)In: Journal of porous materials, ISSN 1380-2224, E-ISSN 1573-4854, Vol. 12, no 3, p. 193-199Article in journal (Refereed) Published
Abstract [en]

Self-bonded zeolite Beta/MCM-41 composite spheres were prepared using a two-step synthesis procedure. In the first step, mesoporous zeolite Beta spheres were obtained using anion exchange resin as macrotemplate. In the second step, the MCM-41 or Al-MCM-41 was grown both on sphere surfaces and in the pore structure of the pre-formed zeolite Beta spheres. Finally, the templating agents used in the synthesis of mesophase were removed by calcination leaving behind self-bonded Beta/MCM-41 composite spheres. Beta/MCM-41 composites were characterized by XRD, SEM and nitrogen adsorption measurements. Materials with controlled macroshape, composition and complex porosity were prepared by the approach.

National Category
Chemical Process Engineering
Research subject
Chemical Technology
Identifiers
urn:nbn:se:ltu:diva-13994 (URN)10.1007/s10934-005-1647-y (DOI)000231602900003 ()2-s2.0-24144485458 (Scopus ID)d5075420-d867-11db-a1bf-000ea68e967b (Local ID)d5075420-d867-11db-a1bf-000ea68e967b (Archive number)d5075420-d867-11db-a1bf-000ea68e967b (OAI)
Note
Validerad; 2005; 20070322 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Grahn, M., Wang, Z., Lidström-Larsson, M., Holmgren, A., Hedlund, J. & Sterte, J. (2005). Silicalite-1 coated ATR elements as sensitive chemical sensor probes (ed.). Paper presented at . Microporous and Mesoporous Materials, 81(1-3), 357-363
Open this publication in new window or tab >>Silicalite-1 coated ATR elements as sensitive chemical sensor probes
Show others...
2005 (English)In: Microporous and Mesoporous Materials, ISSN 1387-1811, E-ISSN 1873-3093, Vol. 81, no 1-3, p. 357-363Article in journal (Refereed) Published
Abstract [en]

A novel sensitive chemical sensor probe has been fabricated. The sensor principle is based on silicalite-1 coated ATR (attenuated total reflection) elements and FTIR spectroscopy. The microporous silicalite-1 film enriches the analyte to the probe surface, thus increasing the sensitivity. At a relative pressure of n-hexane in helium of 6 × 10−5 the sensitivity of the probe is approximately 85 times higher for the silicalite-1 coated element compared to a 10 cm transmission gas cell and ca. 180 times higher compared to an uncoated element. The performance of the probe is illustrated by determination of an adsorption isotherm for n-hexane in silicalite-1.

National Category
Chemical Process Engineering Physical Chemistry
Research subject
Chemical Technology; Physical Chemistry
Identifiers
urn:nbn:se:ltu:diva-8462 (URN)10.1016/j.micromeso.2005.02.019 (DOI)000229665200039 ()2-s2.0-18844383179 (Scopus ID)6f96e730-6f7c-11db-962b-000ea68e967b (Local ID)6f96e730-6f7c-11db-962b-000ea68e967b (Archive number)6f96e730-6f7c-11db-962b-000ea68e967b (OAI)
Note
Validerad; 2005; 20060921 (bajo)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Aiello, R., Artioli, G., Carotenuto, L., Colella, C., Norby, P. & Sterte, J. (2005). Zeolite synthesis in microgravity (ed.). In: (Ed.), Andrew Wilson (Ed.), Topical teams in life & physical sciences: towards new research applications (pp. 78-85). Paper presented at . Noordwijk, Netherlands: ESTEC
Open this publication in new window or tab >>Zeolite synthesis in microgravity
Show others...
2005 (English)In: Topical teams in life & physical sciences: towards new research applications, Noordwijk, Netherlands: ESTEC , 2005, p. 78-85Chapter in book (Other academic)
Abstract [en]

The results of activities performed by the members of the Topical Team on 'Zeolites synthesis in microgravity' are discussed. A method was developed using a two-temperature synthesis procedure to distinguish between the nucleation and growth phase of the crystallization. The experiments have investigated the possibility of suppressing secondary nucleation by imposing a temperature gradient. Optical thickness of the solution has been monitored by interferometry. The Team, on the basis of findings, has elaborated a research program on zeolite film deposition that includes microgravity experimentation.

Place, publisher, year, edition, pages
Noordwijk, Netherlands: ESTEC, 2005
Series
ESA Special Publication ; 1281
National Category
Chemical Process Engineering
Research subject
Chemical Technology
Identifiers
urn:nbn:se:ltu:diva-21216 (URN)c60b4c90-214a-11df-be83-000ea68e967b (Local ID)92-9092-974-X (ISBN)c60b4c90-214a-11df-be83-000ea68e967b (Archive number)c60b4c90-214a-11df-be83-000ea68e967b (OAI)
Note
Godkänd; 2005; 20100224 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved
Lassinantti-Gualtieri, M., Alessandro, G., Hedlund, J., Jareman, F., Sterte, J. & Dapiaggi, M. (2004). Accurate measurement of the thermal expansion of MFI zeolite membranes by in situ HTXRPD (ed.). In: (Ed.), (Ed.), Recent advances in the science and technology of zeolites and related materials. Part A: proceedings of the 14th International Zeolite Conference. Paper presented at International Zeolite Conference : 25/04/2004 - 30/04/2004 (pp. 703-709). Amsterdam: Elsevier
Open this publication in new window or tab >>Accurate measurement of the thermal expansion of MFI zeolite membranes by in situ HTXRPD
Show others...
2004 (English)In: Recent advances in the science and technology of zeolites and related materials. Part A: proceedings of the 14th International Zeolite Conference, Amsterdam: Elsevier, 2004, p. 703-709Conference paper, Published paper (Refereed)
Abstract [en]

Template removal by calcination of MFI type membranes is often accompanied by crack formation. The thermal behavior of MFI type membranes, synthesized with and without masking, was studied to understand the mechanism. Masking prevents growth of zeolite in the interior of the Support during membrane synthesis. Rietveld refinements of powder diffraction data collected in situ at high temperature allowed to accurately determine the change in thermal expansion of the MFI film and the porous alpha-alumina support. During heating, a relatively large contraction of the cell volume during template removal occurred in the zeolite powder and in the film of the membrane prepared with masking. The much smaller decrease in the non-masked sample indicates that this membrane is under stress during heating and as a consequence, cracks are formed. The stress imposed in the membrane prepared without masking may be due to the opposite thermal behavior of the Substrate in combination with strong bonds between the membrane and the support.

Place, publisher, year, edition, pages
Amsterdam: Elsevier, 2004
Series
Studies in Surface Science and Catalysis, ISSN 0167-2991 ; 154:1
National Category
Chemical Process Engineering
Research subject
Chemical Technology
Identifiers
urn:nbn:se:ltu:diva-26948 (URN)10.1016/S0167-2991(04)80873-5 (DOI)03726ca0-6f7c-11db-962b-000ea68e967b (Local ID)0-444-51827-4 (ISBN)03726ca0-6f7c-11db-962b-000ea68e967b (Archive number)03726ca0-6f7c-11db-962b-000ea68e967b (OAI)
Conference
International Zeolite Conference : 25/04/2004 - 30/04/2004
Note
Validerad; 2004; 20060922 (bajo)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved
Naydenov, V., Tosheva, L. & Sterte, J. (2004). Mesoporous Me-AlPO-5 spheres prepared using cation-exchange resins as templates (ed.). In: (Ed.), (Ed.), Recent advances in the science and technology of zeolites and related materials. Part A: proceedings of the International Zeolite Conference. Paper presented at International Zeolite Conference : 25/04/2004 - 30/04/2004 (pp. 660-666). Amsterdam: Elsevier
Open this publication in new window or tab >>Mesoporous Me-AlPO-5 spheres prepared using cation-exchange resins as templates
2004 (English)In: Recent advances in the science and technology of zeolites and related materials. Part A: proceedings of the International Zeolite Conference, Amsterdam: Elsevier, 2004, p. 660-666Conference paper, Published paper (Refereed)
Abstract [en]

Mesoporous self-bonded transition metal-containing AIPO-5 spheres were prepared by a multi-step procedure using macroporous cation exchange resin beads as a template. Aluminum was firstly introduced into the resin by ion exchange using an aluminum chlorohydrate solution. After separation and drying, tf Al-resin composite was mixed with phosphoric acid, tetraethylammonium hydroxide distilled water and hydrothermally treated to yield AIPO-5-resiii composite. Thereafter, vanadium or chromium were ion exchanged into the AIPO-5-resiii composites utilizing the residual ion exchange capacity of the resistor. Finally, the resin was combusted leaving behind Me-AlPO-5 (where Me is V or Cr) spheres similar in shaping and size to the original resin beads. The appearance of the spheres and the nature of the metal species were dependent on the metal loading. The metal introduction affected mainly the mesopore structure of the Mesophare AlPO-5 spheres.

Place, publisher, year, edition, pages
Amsterdam: Elsevier, 2004
National Category
Chemical Process Engineering
Research subject
Chemical Technology
Identifiers
urn:nbn:se:ltu:diva-28368 (URN)225b14f0-9213-11db-8975-000ea68e967b (Local ID)0-444-51827-4 (ISBN)225b14f0-9213-11db-8975-000ea68e967b (Archive number)225b14f0-9213-11db-8975-000ea68e967b (OAI)
Conference
International Zeolite Conference : 25/04/2004 - 30/04/2004
Note
Godkänd; 2004; 20060922 (bajo)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved
Jareman, F., Hedlund, J., Creaser, D. & Sterte, J. (2004). Modelling of single gas permeation in real MFI membranes (ed.). Journal of Membrane Science, 236(1-2), 81-89
Open this publication in new window or tab >>Modelling of single gas permeation in real MFI membranes
2004 (English)In: Journal of Membrane Science, ISSN 0376-7388, E-ISSN 1873-3123, Vol. 236, no 1-2, p. 81-89Article in journal (Refereed) Published
Abstract [en]

A novel permeation model for flow through defects and zeolite pores in real MFI membranes, also accounting for substrate effects has been developed. Defect distributions for two types of MFI membranes were determined from porosimetry data using the model, which incorporated the Horvath Kawazoe (micropores) or the Kelvin equation (mesopores). The narrowest (1.08 nm) and also most common defects were found to be separated with a distance of 10–40 μm according to the model. Diffusion coefficients for hydrogen, helium, nitrogen and SF6 in the zeolite were further determined from single gas permeation data using the model using the independently determined defect distribution. The coefficients are consistent with values previously reported in the literature.

National Category
Chemical Process Engineering
Research subject
Chemical Technology
Identifiers
urn:nbn:se:ltu:diva-12073 (URN)10.1016/j.memsci.2004.01.028 (DOI)000221560500008 ()2-s2.0-2342506362 (Scopus ID)b1fffe90-6f81-11db-962b-000ea68e967b (Local ID)b1fffe90-6f81-11db-962b-000ea68e967b (Archive number)b1fffe90-6f81-11db-962b-000ea68e967b (OAI)
Note

Validerad; 2004; 20060926 (bajo)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Andersson, C., Hedlund, J., Jareman, F. & Sterte, J. (2004). Silicalite-1 membranes with small crystal size (ed.). In: (Ed.), (Ed.), Recent advances in the science and technology of zeolites and related materials. Part A: proceedings of the 14th International Zeolite Conference. Paper presented at International Zeolite Conference : 25/04/2004 - 30/04/2004 (pp. 626-631). Amsterdam: Elsevier
Open this publication in new window or tab >>Silicalite-1 membranes with small crystal size
2004 (English)In: Recent advances in the science and technology of zeolites and related materials. Part A: proceedings of the 14th International Zeolite Conference, Amsterdam: Elsevier, 2004, p. 626-631Conference paper, Published paper (Refereed)
Abstract [en]

Silicalite-1 membranes with small crystal size were prepared using a multiseeding method, where the support was repeatedly seeded and exposed to a short hydrothermal treatment up to five times. The film were characterized using SEM, single gas permeation, porosimetry and mixture separation experiment Films with three or four layers were of high quality i.e with minor defects according to the porosimetry experiments but showed poor separation of binary mixtures. This result may be attributed to the small crystal size and/or large amount of grain boundaries in the films.

Place, publisher, year, edition, pages
Amsterdam: Elsevier, 2004
National Category
Chemical Process Engineering
Research subject
Chemical Technology
Identifiers
urn:nbn:se:ltu:diva-40258 (URN)f51cf970-6f82-11db-962b-000ea68e967b (Local ID)0-444-51827-4 (ISBN)f51cf970-6f82-11db-962b-000ea68e967b (Archive number)f51cf970-6f82-11db-962b-000ea68e967b (OAI)
Conference
International Zeolite Conference : 25/04/2004 - 30/04/2004
Note
Godkänd; 2004; 20060922 (bajo)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2017-11-25Bibliographically approved
Organisations

Search in DiVA

Show all publications