162 citations · 783 across the 29 of their papers we have counts for
6 papers · 1 filter
Free-sustaining Three-dimensional S235 Steel-based Porous Electrocatalyst for Highly Efficient and Durable Oxygen Evolution
Weijia Han, Karsten Küpper, Peilong Hou +5
A novel oxygen evolution reaction (OER) catalyst (3D S235-P steel) based on steel S235 substrate has been successfully prepared via a facile one-step surface modification. The stan…
Substrate patterning using regular macroporous block copolymer monoliths as sacrificial templates and as capillary microstamps
Leiming Guo, Michael Philippi, Martin Steinhart
Polystyrene-block-poly(2-vinylpyridine) (PS-b-P2VP) monoliths containing regular arrays of macropores (diameter ~1.1 microns, depth ~700 nm) at their surfaces are used to pattern s…
Capillary nanostamping with spongy mesoporous silica stamps
Mercedes Schmidt, Michael Philippi, Maximilian Münzner +6
Classical microcontact printing involves transfer of molecules adsorbed on the outer surfaces of solid stamps to substrates to be patterned. We prepared spongy mesoporous silica st…
Steel-Based Electrocatalysts for Efficient and Durable Oxygen Evolution in Acidic Media
Helmut Schäfer, Karsten Küpper, Mercedes Schmidt +10
High overpotentials, particularly an issue of common anode materials, hamper the process of water electrolysis for clean energy generation. Thanks to immense research efforts up to…
Nanostructured submicron block copolymer dots by sacrificial stamping: a potential preconcentration platform for locally resolved sensing, chemistry and cellular interactions
Peilong Hou, Weijia Han, Michael Philippi +2
Classical contact lithography involves patterning of surfaces by embossing or by transfer of ink. We report direct lithographic transfer of parts of sacrificial stamps onto counter…
Ordered topographically patterned silicon by insect-inspired capillary submicron stamping
Weijia Han, Peilong Hou, Shamaila Sadaf +3
Insect-inspired capillary submicron stamping and subsequent surface-limited metal-assisted chemical etching (MACE) with ammonium bifluoride as HF source is employed for high-throug…