Dr. Kilian Pollok

Wissenschaftlicher Mitarbeiter und Studienberater für den M.Sc. Geowissenschaften
Dr. Kilian Pollok Dr. Kilian Pollok Foto: Jan-Peter Kasper (Universität Jena)

Meine Forschungsinteressen...

  • Analytische Transmissionselektronenmikroskopie an Mineralen und Werkstoffen
  • Mechanismen von Mineral-Fluid-Wechselwirkungen
  • Einfluss von Kristallstruktur, Sekundärmineralen und Mikroorganismen auf die Mineralauflösung
Beruflicher Werdegang

seit 07/2011: Wissenschaftlicher Mitarbeiter am Lehrstuhl für Analytische Mineralogie, Institut für Geowissenschaften, Friedrich-Schiller-Universität Jena

04/2008 - 07/2011: Akademischer Rat am Bayerischen Geoinstitut, Universität Bayreuth; Leiter der BMBF-Nachwuchsgruppe MIMOS im Geotechnologien-Schwerpunkt "Mineraloberflächen"

09/2005 - 03/2008: Wissenschaftlicher Mitarbeiter am Institut für Geowissenschaften der Friedrich-Schiller-Universität Jena

1999 - 2005: Wissenschaftlicher Mitarbeiter an der WWU Münster


2005 Promotion zum Dr. rer. nat., Betreuer: Prof. Andrew Putnis

Titel der Dissertation: "Crystal growth patterns in solid solution systems: Case studies on oscillatory zoning and mineral replacement reactions"

1999 - 2005: Promotionstudium an der WWU Münster

1999 Diplom in Mineralogie an der WWU Münster

Titel der Diplomarbeit: "Elektronenmikroskopische und mikroanalytische Untersuchungen an zonierten und anisotropen Granaten"

1995 - 1999: Studium der Mineralogie an der Westfälischen Wilhelms-Universität Münster

1993 - 1995: Studium der Mineralogie an der Phillips-Universität Marburg



Haase, P., Kiefer, S., Pollok, K., Drahota, P., Majzlan, J. (2022) Weathering of stannite–kësterite [Cu2(Fe,Zn)SnS4] and the environmental mobility of the released elements. European Journal of Mineralogy, 34(5), 493-506. https://doi.org/10.5194/ejm-34-493-2022Externer Link

Kodera, P., Majzlan J., Pollok, K., Kiefer, S., Simko, F., Scholtzová, E., Luptáková, J., Cawthorn, G. (2022) Ferrous hydroxychlorides hibbingite (γ-Fe2(OH)3Cl) and parahibbingite (β-Fe2(OH)3Cl) as a concealed sink of Cl and H2O in ultrabasic and granitic systems. American Mineralogist, 107(5), 826-841. https://doi.org/10.2138/am-2022-8011Externer Link

Cheng, P., Ziegler, M., Ripka, V., Wang, H., Pollok, K., Langenhorst, F., Wang, D., & Schaaf, P. (2022). Black Silver: Three-Dimensional Ag Hybrid Plasmonic Nanostructures with Strong Photon Coupling for Scalable Photothermoelectric Power Generation. ACS Appl. Mater. Interfaces. https://doi.org/10.1021/acsami.2c01181Externer Link

Pellegrino, L., Menegon, L., Zanchetta, S., Langenhorst, F., Pollok, K., Tumiati, S., Malaspina, N. (2021). Reaction-induced mantle weakening at high-pressure conditions: An example from garnet pyroxenites of Ulten Zone (Eastern Alps, N Italy). Journal of Geophysical Research: Solid Earth, 126, e2021JB022584. https://doi.org/10.1029/2021JB022584Externer Link

Nabhan, S., Kah, L.C., Mishra, B., Pollok, K., Manning-Berg, A.R., van Zuilen, M.A. (2021). Structural and chemical heterogeneity of Proterozoic organic microfossils of the ca. 1 Ga old Angmaat Formation, Baffin Island, Canada. Geobiology, 19, 557– 584. https://doi.org/10.1111/gbi.12463Externer Link

Palaniselvam, T., Mukundan, C., Hasa, I., Santhosha, A. L., Goktas, M., Moon, H., Ruttert, M., Schmuch, R., Pollok, K., Langenhorst, F., Winter, M., Passerini, S., & Adelhelm, P. (2020). Assessment on the Use of High Capacity "Sn4P3"/NHC Composite Electrodes for Sodium-Ion Batteries with Ether and Carbonate Electrolytes. Advanced Functional Materials, 2004798. https://doi.org/10.1002/adfm.202004798Externer Link

Ziegler, M., Dathe, A., Pollok, K., Langenhorst, F., Hübner, U, Dong, W., & Schaaf, P. (2020). Metastable Atomic Layer Deposition: 3D Self-Assembly toward Ultradark Materials. ACS Nano, 14(11), 15023-15031 https://doi.org/10.1021/acsnano.0c04974Externer Link

Nayak, P. K., Yang, L. T., Pollok, K., Langenhorst, F., Aurbach, D., & Adelhelm, P. (2019). Investigation of Li1.17Ni0.20Mn0.53Co0.10O2 as an Interesting Li- and Mn-Rich Layered Oxide Cathode Material through Electrochemistry, Microscopy, and InSitu Electrochemical Dilatometry. Chemelectrochem, 6(10), 2812-2819. https://doi.org/10.1002/celc.201900453Externer Link

Nayak, P. K., Yang, L. T., Pollok, K., Langenhorst, F., Wondraczek, L., & Adelhelm, P. (2019). Electrochemical Performance and Ageing Mechanisms of Sol-Gel Synthesized Na-2/3[Mn3/5Fe2/5]O-2 for Sodium-Ion Batteries. Batteries & Supercaps, 2(1), 104-111. https://doi.org/10.1002/batt.201800034Externer Link

Pang, R. L., Harries, D., Pollok, K., Zhang, A. C., & Langenhorst, F. (2019). Unique mineral assemblages of shock-induced titanium-rich melt pockets in eucrite Northwest Africa 8003. Geochemistry, 79(4), 125541. https://doi.org/10.1016/j.chemer.2019.125541Externer Link

Santhosha, A. L., Nayak, P. K., Pollok, K., Langenhorst, F., & Adelhelm, P. (2019). Exfoliated MoS2 as Electrode for All-Solid-State Rechargeable Lithium-Ion Batteries. Journal of Physical Chemistry C, 123(19), 12126-12134. https://doi.org/10.1021/acs.jpcc.9b01816Externer Link

Schmidt, D., Pollok, K., Matthaus, G., Nolte, S., & Langenhorst, F. (2019). Nanodeformation in enstatite single crystals: Simulation of micrometeoroid impacts by femtosecond pulsed laser experiments. Geochemistry, 79(4). https://doi.org/10.1016/j.chemer.2019.125542Externer Link

Drunert, F., Blanz, M., Pollok, K., Pan, Z., Wondraczek, L., & Moncke, D. (2018). Copper-based opaque red glasses - Understanding the colouring mechanism of copper nanoparticles in archaeological glass samples. Optical Materials, 76, 375-381. https://doi.org/10.1016/j.optmat.2017.12.054Externer Link

Fazio, A., Pollok, K., & Langenhorst, F. (2018). Experimental evidence for mechanical Brazil twins as an indicator of low-pressure shock metamorphism (< 17.5 GPa). Geology, 46(9), 787-790. https://doi.org/10.1130/G40198.1Externer Link

Goktas, M., Bolli, C., Berg, E. J., Novak, P., Pollok, K., Langenhorst, F., Roeder, M. V., Lenchuk, O., Mollenhauer, D., & Adelhelm, P. (2018). Graphite as Cointercalation Electrode for Sodium-Ion Batteries: Electrode Dynamics and the Missing Solid Electrolyte Interphase (SEI). Advanced Energy Materials, 8(16), 1702724. https://doi.org/10.1002/aenm.201702724Externer Link

Majzlan, J., Stevko, M., Chovan, M., Luptakova, J., Milovska, S., Milovsky, R., Jelen, S., Sykorova, M., Pollok, K., Gottlicher, J., & Kupka, D. (2018). Mineralogy and geochemistry of the copper-dominated neutral mine drainage at the Cu deposit Lubietova-Podlipa (Slovakia). Applied Geochemistry, 92, 59-70. https://doi.org/10.1016/j.apgeochem.2018.02.012Externer Link

Martignier, A., Filella, M., Pollok, K., Melkonian, M., Bensimon, M., Barja, F., Langenhorst, F., Jaquet, J. M., & Ariztegui, D. (2018). Marine and freshwater micropearls: biomineralization producing strontium-rich amorphous calcium carbonate inclusions is widespread in the genus Tetraselmis (Chlorophyta). Biogeosciences, 15(21), 6591-6605. https://doi.org/10.5194/bg-15-6591-2018Externer Link

Pang, R. L., Harries, D., Pollok, K., Zhang, A. C., & Langenhorst, F. (2018). Vestaite, (Ti4+Fe2+)Ti34+O9, a new mineral in the shocked eucrite Northwest Africa 8003. American Mineralogist, 103(9), 1502-1511. https://doi.org/10.2138/am-2018-6522Externer Link

Gualtieri, A. F., Gandolfi, N. B., Pollastri, S., Burghammer, M., Tibaldi, E., Belpoggi, F., Pollok, K., Langenhorst, F., Vigliaturo, R., & Drazic, G. (2017). New insights into the toxicity of mineral fibres: A combined in situ synchrotron mu-XRD and HR-TEM study of chrysotile, crocidolite, and erionite fibres found in the tissues of Sprague-Dawley rats. Toxicology Letters, 274, 20-30. https://doi.org/10.1016/j.toxlet.2017.04.004Externer Link

Martignier, A., Pacton, M., Filella, M., Jaquet, J. M., Barja, F., Pollok, K., Langenhorst, F., Lavigne, S., Guagliardo, P., Kilburn, M. R., Thomas, C., Martini, R., & Ariztegui, D. (2017). Intracellular amorphous carbonates uncover a new biomineralization process in eukaryotes. Geobiology, 15(2), 240-253. https://doi.org/10.1111/gbi.12213Externer Link

Nakatsuka, Y., Pollok, K., Wieduwilt, T., Langenhorst, F., Schmidt, M. A., Fujita, K., Murai, S., Tanaka, K., & Wondraczek, L. (2017). Giant Faraday Rotation through Ultrasmall Fe-n(0) Clusters in Superparamagnetic FeO-SiO2 Vitreous Films. Advanced Science, 4(4), 1600299. https://doi.org/10.1002/advs.201600299Externer Link

Pollastri, S., Gigli, L., Ferretti, P., Andreozzi, G. B., Gandolfi, N. B., Pollok, K., & Gualtieri, A. F. (2017). The crystal structure of mineral fibres. 3. Actinolite asbestos. Periodico Di Mineralogia, 86(2), 89-98. https://doi.org/10.2451/2017pm714Externer Link

Pollastri, S., Perchiazzi, N., Gigli, L., Ferretti, P., Cavallo, A., Gandolfi, N. B., Pollok, K., & Gualtieri, A. F. (2017). The crystal structure of mineral fibres. 2. Amosite and fibrous anthophyllite. Periodico Di Mineralogia, 86(1), 55-65. https://doi.org/10.2451/2017pm693Externer Link

Ziegler, M., Yuksel, S., Goerke, S., Weber, K., Cialla-May, D., Popp, J., Pollok, K., Wang, D., Langenhorst, F., Hubner, U., Schaaf, P., & Meyer, H. G. (2017). Growth of Hierarchically 3D Silver-Silica Hybrid Nanostructures by Metastable State Assisted Atomic Layer Deposition (MS-ALD). Advanced Materials Technologies, 2(7). https://doi.org/10.1002/admt.201700015Externer Link

Gualtieri, A. F., Gandolfi, N. B., Pollastri, S., Pollok, K., & Langenhorst, F. (2016). Where is iron in erionite? A multidisciplinary study on fibrous erionite-Na from Jersey (Nevada, USA). Scientific Reports, 6, 37981. https://doi.org/10.1038/srep37981Externer Link

Fischer, R. A., Nakajima, Y., Campbell, A. J., Frost, D. J., Harries, D., Langenhorst, F., Miyajima, N., Pollok, K., & Rubie, D. C. (2015). High pressure metal-silicate partitioning of Ni, Co, V, Cr, Si, and O. Geochimica Et Cosmochimica Acta, 167, 177-194. https://doi.org/10.1016/j.gca.2015.06.026Externer Link

Peiffer, S., Behrends, T., Hellige, K., Larese-Casanova, P., Wan, M., & Pollok, K. (2015). Pyrite formation and mineral transformation pathways upon sulfidation of ferric hydroxides depend on mineral type and sulfide concentration. Chemical Geology, 400, 44-55. https://doi.org/10.1016/j.chemgeo.2015.01.023Externer Link

Schaffner, F., Merten, D., Pollok, K., Wagner, S., Knoblauch, S., Langenhorst, F., & Buchel, G. (2015). Fast formation of supergene Mn oxides/hydroxides under acidic conditions in the oxic/anoxic transition zone of a shallow aquifer. Environmental Science and Pollution Research, 22(24), 19362-19375. https://doi.org/10.1007/s11356-015-4404-zExterner Link

Yuksel, S., Ziegler, M., Goerke, S., Hubner, U., Pollok, K., Langenhorst, F., Weber, K., Cialla-May, D., & Popp, J. (2015). Background-Free Bottom-Up Plasmonic Arrays with Increased Sensitivity, Specificity and Shelf Life for SERS Detection Schemes. Journal of Physical Chemistry C, 119(24), 13791-13798. https://doi.org/10.1021/acs.jpcc.5b01389Externer Link

Langenhorst, F., Harries, D., Pollok, K., & van Aken, P. A. (2014). Mineralogy and defect microstructure of an olivine-dominated Itokawa dust particle: evidence for shock metamorphism, collisional fragmentation, and LL chondrite origin. Earth Planets and Space, 66. https://doi.org/10.1186/1880-5981-66-118Externer Link

Paikaray, S., Essilfie-Dughan, J., Gottlicher, J., Pollok, K., & Peiffer, S. (2014). Redox stability of As(III) on schwertmannite surfaces. Journal of Hazardous Materials, 265, 208-216. https://doi.org/10.1016/j.jhazmat.2013.11.068Externer Link

Pollok, K., Heidelbach, F., John, T., & Langenhorst, F. (2014). Spherulitic omphacite in pseudotachylytes: Microstructures related to fast crystal growth from seismic melt at eclogite-facies conditions. Chemie Der Erde-Geochemistry, 74(3), 407-418. https://doi.org/10.1016/j.chemer.2014.04.001Externer Link

Harries, D., Pollok, K., & Langenhorst, F. (2013). Oxidative dissolution of 4C- and NC-pyrrhotite: Intrinsic reactivity differences, pH dependence, and the effect of anisotropy. Geochimica Et Cosmochimica Acta, 102, 23-44. https://doi.org/10.1016/j.gca.2012.10.021Externer Link

Langenhorst, F., Harries, D., & Pollok, K. (2013). Non-stoichiometry, defects and superstructures in sulfide and oxide minerals. Minerals at the Nanoscale, 14, 261-295. https://doi.org/10.1180/EMU-notes.14.8Externer Link

Qui, N. V., Scholz, P., Keller, T. F., Pollok, K., & Ondruschka, B. (2013). Ozonated Multiwalled Carbon Nanotubes as Highly Active and Selective Catalyst in the Oxidative Dehydrogenation of Ethyl Benzene to Styrene. Chemical Engineering & Technology, 36(2), 300-306. https://doi.org/10.1002/ceat.201200354Externer Link

Sitte, J., Pollok, K., Langenhorst, F., & Kusel, K. (2013). Nanocrystalline Nickel and Cobalt Sulfides Formed by a Heavy Metal-Tolerant, Sulfate-Reducing Enrichment Culture. Geomicrobiology Journal, 30(1), 36-47. https://doi.org/10.1080/01490451.2011.653082Externer Link

Hellige, K., Pollok, K., Larese-Casanova, P., Behrends, T., & Peiffer, S. (2012). Pathways of ferrous iron mineral formation upon sulfidation of lepidocrocite surfaces. Geochimica Et Cosmochimica Acta, 81, 69-81. https://doi.org/10.1016/j.gca.2011.12.014Externer Link

Harries, D., Pollok, K., & Langenhorst, F. (2011). Translation interface modulation in NC-pyrrhotites: Direct imaging by TEM and a model toward understanding partially disordered structural states. American Mineralogist, 96(5-6), 716-731. https://doi.org/10.2138/am.2011.3644Externer Link

Pollok, K., Putnis, C. V., & Putnis, A. (2011). Mineral Replacement Reactions in Solid Solution-Aqueous Solution Systems: Volume Changes, Reactions Paths and End-Points Using the Example of Model Salt Systems. American Journal of Science, 311(3), 211-236. https://doi.org/10.2475/03.2011.02Externer Link

Qui, N. V., Scholz, P., Krech, T., Keller, T. F., Pollok, K., & Ondruschka, B. (2011). Multiwalled carbon nanotubes oxidized by UV/H2O2 as catalyst for oxidative dehydrogenation of ethylbenzene. Catalysis Communications, 12(6), 464-469. https://doi.org/10.1016/j.catcom.2010.11.007Externer Link

Sushil, S., Scholz, P., Pollok, K., Ondruschka, B., & Batra, V. S. (2011). Application of industrial waste based catalysts for total oxidation of propane. Chemical Engineering Journal, 166(2), 568-578. https://doi.org/10.1016/j.cej.2010.11.024Externer Link

Hopf, J., Langenhorst, F., Pollok, K., Merten, D., & Kothe, E. (2009). Influence of microorganisms on biotite dissolution: An experimental approach. Chemie Der Erde-Geochemistry, 69, 45-56. https://doi.org/10.1016/j.chemer.2008.11.001Externer Link

Nigrovski, B., Scholz, P., Krech, T., Qui, N. V., Pollok, K., Keller, T., & Ondruschka, B. (2009). The influence of microwave heating on the texture and catalytic properties of oxidized multi-walled carbon nanotubes. Catalysis Communications, 10(11), 1473-1477. https://doi.org/10.1016/j.catcom.2009.03.023Externer Link

Nigrovski, B., Zavyalova, U., Scholz, P., Pollok, K., Muller, M., & Ondruschka, B. (2008). Microwave-assisted catalytic oxidative dehydrogenation of ethylbenzene on iron oxide loaded carbon nanotubes. Carbon, 46(13), 1678-1686. https://doi.org/10.1016/j.carbon.2008.07.009Externer Link

Pollok, K., Lloyd, G. E., Austrheim, H., & Putnis, A. (2008). Complex replacement patterns in garnets from Bergen Arcs eclogites: A combined EBSD and analytical TEM study. Chemie Der Erde-Geochemistry, 68(2), 177-191. https://doi.org/10.1016/j.chemer.2007.12.002Externer Link

Zavyalova, U., Nigrovski, B., Pollok, K., Langenhorst, F., Muller, B., Scholz, P., & Ondruschka, B. (2008). Gel-combustion synthesis of nanocrystalline spinel catalysts for VOCs elimination. Applied Catalysis B-Environmental, 83(3-4), 221-228. https://doi.org/10.1016/j.apcatb.2008.02.015Externer Link

Geisler, T., Seydoux-Guillaume, A. M., Poeml, P., Golla-Schindler, U., Berndt, J., Wirth, R., Pollok, K., Janssen, A., & Putnis, A. (2005). Experimental hydrothermal alteration of crystalline and radiation-damaged pyrochlore. Journal of Nuclear Materials, 344(1-3), 17-23. https://doi.org/10.1016/j.jnucmat.2005.04.009Externer Link

Geisler, T., Berndt, J., Meyer, H. W., Pollok, K., & Putnis, A. (2004). Low-temperature aqueous alteration of crystalline pyrochlore: correspondence between nature and experiment. Mineralogical Magazine, 68(6), 905-922. https://doi.org/10.1180/0026461046860230Externer Link

Becker, U., & Pollok, K. (2002). Molecular simulations of interfacial and thermodynamic mixing properties of grossular-andradite garnets. Physics and Chemistry of Minerals, 29(1), 52-64. https://doi.org/10.1007/s002690100211Externer Link

Kostenko, O., Jamtveit, B., Austrheim, H., Pollok, K., & Putnis, C. (2002). The mechanism of fluid infiltration in peridotites at Almklovdalen, western Norway. Geofluids, 2(3), 203-215. https://doi.org/DOIExterner Link 10.1046/j.1468-8123.2002.00038.x

Pollok, K., Jamtveit, B., & Putnis, A. (2001). Analytical transmission electron microscopy of oscillatory zoned grandite garnets. Contributions to Mineralogy and Petrology, 141(3), 358-366. https://doi.org/DOIExterner Link 10.1007/s004100100248


Tätigkeiten in wissenschaftlichen Gesellschaften

Seit 2018: stellvertr. Vorsitzender der Gesellschaft zur Förderung der Geowissenschaften Jena e.V.


2019-2020: Wissenschaftlicher Beirat der Deutschen Mineralogischen Gesellschaft (DMG)

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