dr. Ward van der Stam

dr. Ward van der Stam
David de Wiedgebouw
Room 4.88
W.vanderStam@uu.nl

The electrocatalytic reduction of CO2 into hydrocarbon fuels, like methane or ethylene, is regarded as one of the best methods to address one of the main current environmental issues: reducing the CO2 footprint. Our research focuses on the synthesis of colloidal metal nanoparticles with various sizes and shapes (e.g. nanorods or nanoplatelets) in order to design the ultimate electrocatalyst, and test them in the CO2 reduction reaction (CO2RR). Our main interest lies in unravelling where the reaction takes place by performing in-situ diffraction and spectroscopy measurements, ideally under true reaction conditions. Colloidal nanomaterials are ideally suited for this purpose, since they can be prepared with atomic precision in solution, which not only allows us to deposit them on various electrodes, but also characterize the size, shape and faceting during the reaction. This will give valuable insights into the exact reaction mechanism of CO2RR and the (de)activation of the electrocatalyst nanoparticles, which will allow us to rationally design the ultimate electrocatalyst.

Publications

Stam, Van Der W; Graaf, De M; Gudjonsdottir, S; Geuchies, J J; Dijkema, J J; Kirkwood, N; Evers, W H; Longo, A; Houtepen, A J

Tuning and Probing the Distribution of Cu+ and Cu2+ Trap States Responsible for Broad-Band Photoluminescence in CuInS2 Nanocrystals Journal Article

ACS Nano, 12 (11), pp. 11244-11253, 2018.

Links | BibTeX

Kirkwood, N; Monchen, J O V; Crisp, R W; Grimaldi, G; Bergstein, H A C; Fossé, Du I; Stam, Van Der W; Infante, I; Houtepen, A J

Finding and Fixing Traps in II-VI and III-V Colloidal Quantum Dots: The Importance of Z-Type Ligand Passivation Journal Article

Journal of the American Chemical Society, 140 (46), pp. 15712-15723, 2018.

Links | BibTeX

Stam, Van Der W; Fossé, Du I; Grimaldi, G; Monchen, J O V; Kirkwood, N; Houtepen, A J

Spectroelectrochemical Signatures of Surface Trap Passivation on CdTe Nanocrystals Journal Article

Chemistry of Materials, 30 (21), pp. 8052-8061, 2018.

Links | BibTeX

Berends, A C; Stam, Van Der W; Akkerman, Q A; Meeldijk, J D; Lit, Van Der J; Donega, De Mello C

Anisotropic 2D Cu2- xSe Nanocrystals from Dodecaneselenol and Their Conversion to CdSe and CuInSe2 Nanoparticles Journal Article

Chemistry of Materials, 30 (11), pp. 3836-3846, 2018.

Links | BibTeX

Gudjonsdottir, S; Stam, Van Der W; Kirkwood, N; Evers, W H; Houtepen, A J

The Role of Dopant Ions on Charge Injection and Transport in Electrochemically Doped Quantum Dot Films Journal Article

Journal of the American Chemical Society, 140 (21), pp. 6582-6590, 2018.

Links | BibTeX

Berends, A C; Stam, Van Der W; Hofmann, J P; Bladt, E; Meeldijk, J D; Bals, S; Donega, De Mello C

Interplay between Surface Chemistry, Precursor Reactivity, and Temperature Determines Outcome of ZnS Shelling Reactions on CuInS 2 Nanocrystals Journal Article

Chemistry of Materials, 30 (7), pp. 2400-2413, 2018.

Links | BibTeX

Stam, Van Der W; Fossé, Du I; Grimaldi, G; Monchen, J O V; Kirkwood, N; Houtepen, A J

Spectroelectrochemical Signatures of Surface Trap Passivation on CdTe Nanocrystals Journal Article

Chemistry of Materials, 2018.

Links | BibTeX

der Stam, Van W; Geuchies, J J; Altantzis, T; Bos, Van Den K H W; Meeldijk, J D; Aert, Van S; Bals, S; Vanmaekelbergh, D; Donega, De Mello C

Highly Emissive Divalent-Ion-Doped Colloidal CsPb1-xMxBr3 Perovskite Nanocrystals through Cation Exchange Journal Article

Journal of the American Chemical Society, 139 (11), pp. 4087-4097, 2017.

Links | BibTeX

Stam, Van Der W; Gudjonsdottir, S; Evers, W H; Houtepen, A J

Switching between Plasmonic and Fluorescent Copper Sulfide Nanocrystals Journal Article

Journal of the American Chemical Society, 139 (37), pp. 13208-13217, 2017.

Links | BibTeX

Stam, Van Der W; Rabouw, F T; Vonk, S J W; Geuchies, J J; Ligthart, H; Petukhov, A V; Donega, De Mello C

Oleic Acid-Induced Atomic Alignment of ZnS Polyhedral Nanocrystals Journal Article

Nano Letters, 16 (4), pp. 2608-2614, 2016.

Links | BibTeX

Stam, Van Der W; Rabouw, F T; Geuchies, J J; Berends, A C; Hinterding, S O M; Geitenbeek, R G; Lit, Van Der J; Prévost, S; Petukhov, A V; Donega, De Mello C

In Situ Probing of Stack-Templated Growth of Ultrathin Cu2-xS Nanosheets Journal Article

Chemistry of Materials, 28 (17), pp. 6381-6389, 2016, (cited By 9).

Links | BibTeX

Stam, Van Der W; Rabouw, F T; Vonk, S J W; Geuchies, J J; Ligthart, H; Petukhov, A V; Donega, De Mello C

Oleic Acid-Induced Atomic Alignment of ZnS Polyhedral Nanocrystals Journal Article

Nano Letters, 16 (4), pp. 2608-2614, 2016, (cited By 19).

Links | BibTeX

Stam, Van Der W; Gradmann, S; Altantzis, T; Ke, X; Baldus, M; Bals, S; Donega, De Mello C

Shape control of colloidal Cu2-xS polyhedral nanocrystals by tuning the nucleation rates Journal Article

Chemistry of Materials, 28 (18), pp. 6705-6715, 2016.

Links | BibTeX

Stam, Van Der W; Berends, A C; Donega, De Mello C

Prospects of Colloidal Copper Chalcogenide Nanocrystals Journal Article

ChemPhysChem, 17 (5), pp. 559-581, 2016.

Links | BibTeX

Stam, Van Der W; Bladt, E; Rabouw, F T; Bals, S; Donega, De Mello C

Near-Infrared Emitting CuInSe2/CuInS2 Dot Core/Rod Shell Heteronanorods by Sequential Cation Exchange Journal Article

ACS Nano, 9 (11), pp. 11430-11438, 2015.

Links | BibTeX

Stam, Van Der W; Berends, A C; Rabouw, F T; Willhammar, T; Ke, X; Meeldijk, J D; Bals, S; Donega, De Mello C

Luminescent CuInS2 quantum dots by partial cation exchange in Cu2- xS nanocrystals Journal Article

Chemistry of Materials, 27 (2), pp. 621-628, 2015.

Links | BibTeX

Stam, Van Der W; Bladt, E; Rabouw, F T; Bals, S; Donega, De Mello C

Near-Infrared Emitting CuInSe2/CuInS2 Dot Core/Rod Shell Heteronanorods by Sequential Cation Exchange Journal Article

ACS Nano, 9 (11), pp. 11430-11438, 2015, (cited By 46).

Links | BibTeX

Stam, Van Der W; Berends, A C; Rabouw, F T; Willhammar, T; Ke, X; Meeldijk, J D; Bals, S; Donega, De Mello C

Luminescent CuInS2 quantum dots by partial cation exchange in Cu2- xS nanocrystals Journal Article

Chemistry of Materials, 27 (2), pp. 621-628, 2015, (cited By 69).

Links | BibTeX

Stam, Van Der W; Akkerman, Q A; Ke, X; Huis, Van M A; Bals, S; Donega, De Mello C

Solution-processable ultrathin size- and shape-controlled colloidal Cu2- xS nanosheets Journal Article

Chemistry of Materials, 27 (1), pp. 283-291, 2015.

Links | BibTeX

Stam, Van Der W; Gantapara, A P; Akkerman, Q A; Soligno, G; Meeldijk, J D; Roij, Van R; Dijkstra, M; Donega, De Mello C

Self-assembly of colloidal hexagonal bipyramid- and bifrustum-shaped ZnS nanocrystals into two-dimensional superstructures Journal Article

Nano Letters, 14 (2), pp. 1032-1037, 2014.

Links | BibTeX