Joakim Ekspong

Contact

joakim.ekspong@umu.se

Works at

Affiliated as other position at Department of Physics

Fysikhuset, plan 3, Linnaeus väg 24, 3-0526 Umeå universitet, 901 87 Umeå

Recent progress on defect-rich electrocatalysts for hydrogen and oxygen evolution reactions

Nano Today, Elsevier 2023, Vol. 50

Perivoliotis, Dimitrios K.; Ekspong, Joakim; Zhao, Xue; et al.

Magnetically Collected Platinum/Nickel Alloy Nanoparticles as Catalysts for Hydrogen Evolution

ACS Applied Nano Materials, American Chemical Society (ACS) 2021, Vol. 4, (12) : 12957-12965

Ekeroth, Sebastian; Ekspong, Joakim; Perivoliotis, Dimitrios K.; et al.

Electrocatalysts for sustainable hydrogen energy: disordered and heterogeneous nanomaterials

Umeå: Umeå Universitet 2021

Ekspong, Joakim

Solar-driven water splitting at 13.8 % solar-to-hydrogen efficiency by an earth-abundant PV-electrolyzer

ACS Sustainable Chemistry and Engineering, American Chemical Society (ACS) 2021, Vol. 9, (42) : 14070-14078

Ekspong, Joakim; Larsen, Christian; Stenberg, Jonas; et al.

Theoretical Analysis of Surface Active Sites in Defective 2H and 1T ' MoS2 Polymorphs for Hydrogen Evolution Reaction: Quantifying the Total Activity of Point Defects

Advanced Theory and Simulations, Wiley-VCH Verlagsgesellschaft 2020, Vol. 3, (3)

Ekspong, Joakim; Gracia-Espino, Eduardo

Hydrogen Evolution Reaction Activity of Heterogeneous Materials: A Theoretical Model

The Journal of Physical Chemistry C, American Chemical Society (ACS) 2020, Vol. 124, (38) : 20911-20921

Ekspong, Joakim; Gracia-Espino, Eduardo; Wågberg, Thomas

Solid-state synthesis of few-layer cobalt-doped MoS₂ with CoMoS phase on nitrogen-doped graphene driven by microwave irradiation for hydrogen electrocatalysis

RSC Advances, Royal Society of Chemistry 2020, Vol. 10, (56) : 34323-34332

Fan, Junpeng; Ekspong, Joakim; Ashok, Anumol; et al.

Microwave-Induced Structural Ordering of Resilient Nanostructured L1₀-FePt Catalysts for Oxygen Reduction Reaction

ACS Applied Energy Materials, American Chemical Society (ACS) 2020, Vol. 3, (10) : 9785-9791

Sandström, Robin; Gracia-Espino, Eduardo; Annamalai, Alagappan; et al.

Stainless Steel as A Bi-Functional Electrocatalyst – A Top-Down Approach

Materials, MDPI 2019, Vol. 12, (13)

Ekspong, Joakim; Wågberg, Thomas

Evaluation of Fluorine and Sulfonic Acid Co-functionalized Graphene Oxide Membranes in Hydrogen Proton Exchange Membrane Fuel Cell Conditions

Sustainable Energy & Fuels, Royal Society of Medicine Press 2019, Vol. 3, (7) : 1790-1798

Sandström, Robin; Annamalai, Alagappan; Boulanger, Nicolas; et al.

Oxidatively Induced Exposure of Active Surface Area during Microwave Assisted Formation of Pt₃Co Nanoparticles for Oxygen Reduction Reaction

RSC Advances, Royal Society of Chemistry 2019, Vol. 9, (31) : 17979-17987

Sandström, Robin; Ekspong, Joakim; Gracia-Espino, Eduardo; et al.

Catalytic nanotruss structures realized by magnetic self-assembly in pulsed plasma

Nano Letters, American Chemical Society (ACS) 2018, Vol. 18, (5) : 3132-3137

Ekeroth, Sebastian; Münger, E. Peter; Boyd, Robert; et al.

Surface activation of graphene nanoribbons for oxygen reduction reaction by nitrogen doping and defect engineering: An ab initio study

Carbon, Elsevier 2018, Vol. 137 : 349-357

Ekspong, Joakim; Boulanger, Nicolas; Gracia-Espino, Eduardo

Stable Sulfur‐Intercalated 1T′ MoS₂ on Graphitic Nanoribbons as Hydrogen Evolution Electrocatalyst

Advanced Functional Materials, WILEY-VCH VERLAG GMBH 2018, Vol. 28, (46)

Ekspong, Joakim; Sandström, Robin; Rajukumar, Lakshmy Pulickal; et al.

Fabrication of microporous layer - free hierarchical gas diffusion electrode as a low Pt-loading PEMFC cathode by direct growth of helical carbon nanofibers

RSC Advances, Royal Society of Chemistry 2018, Vol. 8, (72) : 41566-41574

Sandström, Robin; Ekspong, Joakim; Annamalai, Alagappan; et al.

Stabilizing Active Edge Sites in Semicrystalline Molybdenum Sulfide by Anchorage on Nitrogen-Doped Carbon Nanotubes for Hydrogen Evolution Reaction

Advanced Functional Materials, Wiley-VCH Verlagsgesellschaft 2016, Vol. 26, (37) : 6766-6776

Ekspong, Joakim; Sharifi, Tiva; Shchukarev, Andrey; et al.

Hydrogen Fuel from Water - An Advanced Electrocatalyst based on Nitrogen doped Carbon Nanotubes

Ekspong, Joakim

Magnetically collected platinum/nickel alloy nanoparticles – insight into low noble metal content catalysts for hydrogen evolution reaction

Ekspong, Joakim; Ekeroth, Sebastian; Sharma, Sachin; et al.

View publications in DiVA

Research groups

Group member

Thomas Wågberg lab