2018/10-2023/03 Barcelona Institute of Science and Technology Institute of Chemical Research of Catalonia
Doctoral degree in Chemical Science and Technology
Supervisor: José Ramón Galán-Mascarós (jrgalan@
Thesis: Water Splitting Electrocatalysts in Acidic Media: in the Search of Non-noble Metal Alternatives
2022/07-2022/10 Leiden University Leiden Institute of Chemistry
Exchange doctoral student in Electrochemistry
Supervisor: Marc Koper (m.koper@
Project: Ion Effects towards O2 Gas Bubble Detachment on Pt Microelectrode
2015/09-2018/07 Wuhan University School of Chemistry and Molecular Sciences
Master’s degree in Inorganic Chemistry
Supervisor: Wei Luo (wluo@
Thesis: Nickel-iron Based Nanocatalysts for Electrochemical Oxygen Evolution Reaction in Alkaline Media
RESEARCH INTERESTS
1. Local environment (pH, hydrophilicity/hydrophobicity) and external field (magnet, sun) effects on water splitting electrocatalysis
2. Design and fabrication of efficient electrocatalysts towards oxygen evolution reaction under alkaline and acidic media
3. Zero-gap water electrolysis cell design
12
Scopus Publications
782
Scholar Citations
10
Scholar h-index
10
Scholar i10-index
Scopus Publications
Water Oxidation Electrocatalysis in Acidic Media with Fe-Containing POMs/Carbon Composites Khalid Azmani, Maria Besora, Jiahao Yu, Anne-Lucie Teillout, Pedro de Oliveira, Israël-Martyr Mbomekallé, Joaquín Soriano-López, Josep M. Poblet, José-Ramón Galán-Mascarós Inorganic Chemistry, 2025 Iron-based catalysts are very appealing in terms of applications due to the low cost of Fe and to its abundance in the Earth's crust. In the field of water oxidation, unfortunately, iron oxides cannot match the activity of Co or Ni oxides, much less than the activity of noble metal oxides (IrO2). The activity of transition metals to promote the oxygen evolution reaction (OER) can be tuned and enhanced by their incorporation into polyoxometalate frameworks (POMs). In comparison with metal oxides, POMs offer a controlled, discrete structure and a tailor-made environment. Fe-POMs still show a low OER activity in neutral or basic media when compared to Co-POMs. When moving to highly acidic media, we have found an unexpected electrochemical response in carbon paste electrodes containing salts of the [Fe4III(H2O)2(PW9O34)2]6- (Fe4) polyanion. In oxidative conditions, these electrodes showed lower onset potentials and higher current densities than their Co-based analogues, contrary to computational expectations. Careful analyses have shown the excellent stability of the Fe4 in these pH < 1 conditions, but a poor selectivity. CO2 is the dominant product, in addition to O2. The capability of Fe4 to oxidize amorphous carbon under acidic conditions appears to be unique since it is not found in Fe oxides or simple Fe salts. Thus, Fe-POMs, in acidic conditions, are still modest OER catalysts, but exhibit a unique performance when electrochemically oxidizing carbon.
Operando evidence on the chirality-enhanced oxygen evolution reaction in intrinsically chiral electrocatalysts Felipe A. Garcés-Pineda, Jiahao Yu, Camilo A. Mesa, Sergi Plana-Ruiz, Daniel Ruano, Yunchang Liang, Magalí Lingenfelder, Sixto Giménez, J. R. Galán-Mascarós Chemical Science, 2025 Intrinsically chiral oxides show enhanced activity towards the oxygen evolution reaction in full cell electrolysers. Enantiopure active sites were detected in operando by circular dichroism-spectro-electrochemical data.
Structure and Electronic Properties of Large Oligomeric Heterometallic 3d/CeIV Polyoxometalates Olivier Oms, Nishith Maity, Jérôme Marrot, Jiahao Yu, Eric Rivière, William Shepard, Youven Benseghir, Khadija Talbi, Anne Dolbecq, Minh-Huong Ha-Thi, Jose-Ramon Galan-Mascaros, Pierre Mialane Inorganic Chemistry, 2023 Merging the rich chemistry of Ce(IV) polyoxometalates (POMs) with that of 3d polyanions remains a challenge due to the strong competition between these highly oxophilic lanthanide cations and 3d metallic ions for coordination to lacunary molecular metal oxides. We report herein the characterization of an unprecedented water stable hexameric CeIV/CoII POM (Ce12Co6) made of two {(SiW9)2Ce6} units connected to a {(SiW10)2Co6(PO4)2} core. In addition, the pentameric CeIV/NiII compound Ce6Ni8, where two {PW9Ni3W} and a {PW10Ni2} fragments are grafted on a {(PW9)2Ce6} moiety, has been obtained. Magnetic studies of Ce6Ni8 revealed ferromagnetic interactions between the NiII centers constituting the {Ni3PW10} fragments, in agreement with the geometry of such a trinuclear cluster. Related insoluble barium salts of Ce12Co6 and Ce6Ni8 were also prepared, allowing their solid-state electrochemical investigations and showing in particular that in Ce12Co6, both the cobalt, cerium, and silicotungstate moieties are electroactive. Finally, photophysical studies demonstrate the formation of long-lived reduced POMs photosensitized by [Ru(bpy)3]2+, suggesting that Ce12Co6 and Ce6Ni8 could be used as efficient reservoirs of reduction equivalents for photocatalytic reactions.
A survey of Earth-abundant metal oxides as oxygen evolution electrocatalysts in acidic media (pH o 1) Jiahao Yu, Stefano Giancola, Bahareh Khezri, David Nieto-Castro, Jesús Redondo, Frederik Schiller, Sara Barja, Maria Chiara Spadaro, Jordi Arbiol, Felipe A. Garcés-Pineda, José Ramón Galán-Mascarós Ees Catalysis, 2023 A promising strategy to estabilize earth-abundant transition metal oxides during water electrolysis in acidic media to compete with noble metal water oxidation catalysts.
Sustainable oxygen evolution electrocatalysis in aqueous 1 M H2SO4 with earth abundant nanostructured Co3O4 Jiahao Yu, Felipe A. Garcés-Pineda, Jesús González-Cobos, Marina Peña-Díaz, Celia Rogero, Sixto Giménez, Maria Chiara Spadaro, Jordi Arbiol, Sara Barja, José Ramón Galán-Mascarós Nature Communications, 2022 Earth-abundant electrocatalysts for the oxygen evolution reaction (OER) able to work in acidic working conditions are elusive. While many first-row transition metal oxides are competitive in alkaline media, most of them just dissolve or become inactive at high proton concentrations where hydrogen evolution is preferred. Only noble-metal catalysts, such as IrO2, are fast and stable enough in acidic media. Herein, we report the excellent activity and long-term stability of Co3O4-based anodes in 1 M H2SO4 (pH 0.1) when processed in a partially hydrophobic carbon-based protecting matrix. These Co3O4@C composites reliably drive O2 evolution a 10 mA cm–2 current density for >40 h without appearance of performance fatigue, successfully passing benchmarking protocols without incorporating noble metals. Our strategy opens an alternative venue towards fast, energy efficient acid-media water oxidation electrodes.
Mo-Doped Ni3S2 Nanowires as High-Performance Electrocatalysts for Overall Water Splitting Cheng Du, Yana Men, Xiuze Hei, Jiahao Yu, Gongzhen Cheng, Wei Luo Chemelectrochem, 2018 The search for highly active and stable bifunctional electrocatalysts toward overall water splitting is essential for renewable energy technologies. Here, 3D Mo‐doped Ni3S2 nanowire networks directly grown on Ni foam through a successive hydrothermal and sulfidization process have been synthesized. Thanks to the unique 3D hierarchical nanowire networks and efficient Mo doping, the as‐synthesized Mo‐doped Ni3S2/NF exhibits superior catalytic activities and stability toward HER/OER, with overpotentials of 61 and 213 mV to reach a current density of 10 mA cm−2 for HER and OER, respectively. Furthermore, when used as both anode and cathode for overall water splitting, a cell voltage of 1.485 V is required to achieve a current density of 10 at mA cm−2 in alkaline solution.
3D mesoporous rose-like nickel-iron selenide microspheres as advanced electrocatalysts for the oxygen evolution reaction Jiahao Yu, Gongzhen Cheng, Wei Luo Nano Research, 2018 The development of efficient and stable non-noble metal-based electrocatalysts for the oxygen evolution reaction (OER) is one of the essential challenges for the upcoming hydrogen economy. Herein, 3D mesoporous nickel iron selenide with rose-like microsphere architecture was directly grown on Ni foam via a successive two-step hydrothermal method. The unique 3D mesoporous rose-like morphology leads to a higher number of active sites as well as fast mass and electron transport through the entire electrode, and facilitates the release of O2 bubbles formed during the OER catalysis. As a result, the synthesized Ni0.76Fe0.24Se exhibits superior OER performances, with an ultralow overpotential of 197 mV needed to produce a current density of 10 mA·cm–2 in 1 M KOH, outperforming all transition metal selenide OER catalysts reported to date.
Water Oxidation Electrocatalysis in Acidic Media with Fe-Containing POMs/Carbon Composites K Azmani, M Besora, J Yu, AL Teillout, P de Oliveira, IM Mbomekalle, ... Inorganic Chemistry 64 (9), 4260-4266 , 2025 2025.0 Citations: 5
Operando evidence on the chirality-enhanced oxygen evolution reaction in intrinsically chiral electrocatalysts FA Garcés-Pineda, J Yu, CA Mesa, S Plana-Ruiz, D Ruano, Y Liang, ... Chemical Science 16 (13), 5475-5482 , 2025 2025.0 Citations: 14
Earth-Abundant Metal Oxides as Oxygen Evolution Electrocatalysts in 1 M H 2 SO 4 J Yu, F Garcés Pineda, JR Galan-Mascaros Electrochemical Society Meeting Abstracts 245, 1782-1782 , 2024 2024.0 Citations: 1
Experimental evidences of the direct influence of external magnetic fields on the mechanism of the electrocatalytic oxygen evolution reaction CA Mesa, FA Garcés-Pineda, M García-Tecedor, J Yu, B Khezri, ... APL Energy 2 (1) , 2024 2024.0 Citations: 19
Structure and Electronic Properties of Large Oligomeric Heterometallic 3d/Ce IV Polyoxometalates O Oms, N Maity, J Marrot, J Yu, E Rivière, W Shepard, Y Benseghir, ... Inorganic Chemistry 62 (46), 18856-18863 , 2023 2023.0 Citations: 5
Water Splitting Electrocatalysts in Acidic Media: in the Search of Non-noble Metal Alternatives J Yu Universitat Rovira i Virgili , 2023 2023.0
A survey of Earth-abundant metal oxides as oxygen evolution electrocatalysts in acidic media (pH< 1) J Yu, S Giancola, B Khezri, D Nieto-Castro, J Redondo, F Schiller, S Barja, ... Ees Catalysis 1 (5), 765-773 , 2023 2023.0 Citations: 16
Author Correction: Sustainable oxygen evolution electrocatalysis in aqueous 1 M H 2 SO 4 with earth abundant nanostructured Co 3 O 4 J Yu, FA Garcés-Pineda, J González-Cobos, M Peña-Díaz, C Rogero, ... nature communications 13 (1), 4687 , 2022 2022.0 Citations: 1
Sustainable oxygen evolution electrocatalysis in aqueous 1 M H 2 SO 4 with earth abundant nanostructured Co 3 O 4 J Yu, FA Garcés-Pineda, J González-Cobos, M Peña-Díaz, C Rogero, ... Nature communications 13 (1), 4341 , 2022 2022.0 Citations: 169
(Invited) Sustainable and Energy-Efficient (nano)Structured Oxidation Electrocatalysts in Acidic Media from Earth Abundant Metals JR Galan-Mascaros, F Garcés Pineda, J Yu, I Gelmetti Electrochemical Society Meeting Abstracts 239, 1896-1896 , 2021 2021.0
Mo‐Doped Ni 3 S 2 Nanowires as High‐Performance Electrocatalysts for Overall Water Splitting C Du, Y Men, X Hei, J Yu, G Cheng, W Luo ChemElectroChem 5 (18), 2564-2570 , 2018 2018.0 Citations: 50
3D mesoporous rose-like nickel-iron selenide microspheres as advanced electrocatalysts for the oxygen evolution reaction J Yu, G Cheng, W Luo Nano Research 11 (4), 2149-2158 , 2018 2018.0 Citations: 69
A facile synthesis of porous N-doped carbon with hybridization of Fe 3 C nanoparticle-encased CNTs for an advanced oxygen reduction reaction electrocatalyst P Zhao, H Nie, J Yu, J Wang, G Cheng Inorganic Chemistry Frontiers 5 (10), 2546-2553 , 2018 2018.0 Citations: 15
Construction of a hierarchical NiFe layered double hydroxide with a 3D mesoporous structure as an advanced electrocatalyst for water oxidation J Yu, F Yang, G Cheng, W Luo Inorganic Chemistry Frontiers 5 (8), 1795-1799 , 2018 2018.0 Citations: 19
Hierarchical NiFeP microflowers directly grown on Ni foam for efficient electrocatalytic oxygen evolution J Yu, G Cheng, W Luo Journal of Materials Chemistry A 5 (22), 11229-11235 , 2017 2017.0 Citations: 171
Ternary nickel–iron sulfide microflowers as a robust electrocatalyst for bifunctional water splitting J Yu, G Cheng, W Luo Journal of Materials Chemistry A 5 (30), 15838-15844 , 2017 2017.0 Citations: 228
To obtain the target material, Co@ C was firstly synthesized using ZIF-9 as precursor by heating at 500 and then 750 C for 2 h, respectively, under Ar flow while Co3O4 was … J Yu Water Splitting Electrocatalysts in Acidic Media: in the Search of Non-noble … , 0
1.4. Oxygen evolution reaction J Yu Water Splitting Electrocatalysts in Acidic Media: in the Search of Non-noble … , 0
MOST CITED SCHOLAR PUBLICATIONS
Ternary nickel–iron sulfide microflowers as a robust electrocatalyst for bifunctional water splitting J Yu, G Cheng, W Luo Journal of Materials Chemistry A 5 (30), 15838-15844 , 2017 2017.0 Citations: 228
Hierarchical NiFeP microflowers directly grown on Ni foam for efficient electrocatalytic oxygen evolution J Yu, G Cheng, W Luo Journal of Materials Chemistry A 5 (22), 11229-11235 , 2017 2017.0 Citations: 171
Sustainable oxygen evolution electrocatalysis in aqueous 1 M H 2 SO 4 with earth abundant nanostructured Co 3 O 4 J Yu, FA Garcés-Pineda, J González-Cobos, M Peña-Díaz, C Rogero, ... Nature communications 13 (1), 4341 , 2022 2022.0 Citations: 169
3D mesoporous rose-like nickel-iron selenide microspheres as advanced electrocatalysts for the oxygen evolution reaction J Yu, G Cheng, W Luo Nano Research 11 (4), 2149-2158 , 2018 2018.0 Citations: 69
Mo‐Doped Ni 3 S 2 Nanowires as High‐Performance Electrocatalysts for Overall Water Splitting C Du, Y Men, X Hei, J Yu, G Cheng, W Luo ChemElectroChem 5 (18), 2564-2570 , 2018 2018.0 Citations: 50
Experimental evidences of the direct influence of external magnetic fields on the mechanism of the electrocatalytic oxygen evolution reaction CA Mesa, FA Garcés-Pineda, M García-Tecedor, J Yu, B Khezri, ... APL Energy 2 (1) , 2024 2024.0 Citations: 19
Construction of a hierarchical NiFe layered double hydroxide with a 3D mesoporous structure as an advanced electrocatalyst for water oxidation J Yu, F Yang, G Cheng, W Luo Inorganic Chemistry Frontiers 5 (8), 1795-1799 , 2018 2018.0 Citations: 19
A survey of Earth-abundant metal oxides as oxygen evolution electrocatalysts in acidic media (pH< 1) J Yu, S Giancola, B Khezri, D Nieto-Castro, J Redondo, F Schiller, S Barja, ... Ees Catalysis 1 (5), 765-773 , 2023 2023.0 Citations: 16
A facile synthesis of porous N-doped carbon with hybridization of Fe 3 C nanoparticle-encased CNTs for an advanced oxygen reduction reaction electrocatalyst P Zhao, H Nie, J Yu, J Wang, G Cheng Inorganic Chemistry Frontiers 5 (10), 2546-2553 , 2018 2018.0 Citations: 15
Operando evidence on the chirality-enhanced oxygen evolution reaction in intrinsically chiral electrocatalysts FA Garcés-Pineda, J Yu, CA Mesa, S Plana-Ruiz, D Ruano, Y Liang, ... Chemical Science 16 (13), 5475-5482 , 2025 2025.0 Citations: 14
Water Oxidation Electrocatalysis in Acidic Media with Fe-Containing POMs/Carbon Composites K Azmani, M Besora, J Yu, AL Teillout, P de Oliveira, IM Mbomekalle, ... Inorganic Chemistry 64 (9), 4260-4266 , 2025 2025.0 Citations: 5
Structure and Electronic Properties of Large Oligomeric Heterometallic 3d/Ce IV Polyoxometalates O Oms, N Maity, J Marrot, J Yu, E Rivière, W Shepard, Y Benseghir, ... Inorganic Chemistry 62 (46), 18856-18863 , 2023 2023.0 Citations: 5
Earth-Abundant Metal Oxides as Oxygen Evolution Electrocatalysts in 1 M H 2 SO 4 J Yu, F Garcés Pineda, JR Galan-Mascaros Electrochemical Society Meeting Abstracts 245, 1782-1782 , 2024 2024.0 Citations: 1
Author Correction: Sustainable oxygen evolution electrocatalysis in aqueous 1 M H 2 SO 4 with earth abundant nanostructured Co 3 O 4 J Yu, FA Garcés-Pineda, J González-Cobos, M Peña-Díaz, C Rogero, ... nature communications 13 (1), 4687 , 2022 2022.0 Citations: 1
Water Splitting Electrocatalysts in Acidic Media: in the Search of Non-noble Metal Alternatives J Yu Universitat Rovira i Virgili , 2023 2023.0
(Invited) Sustainable and Energy-Efficient (nano)Structured Oxidation Electrocatalysts in Acidic Media from Earth Abundant Metals JR Galan-Mascaros, F Garcés Pineda, J Yu, I Gelmetti Electrochemical Society Meeting Abstracts 239, 1896-1896 , 2021 2021.0
To obtain the target material, Co@ C was firstly synthesized using ZIF-9 as precursor by heating at 500 and then 750 C for 2 h, respectively, under Ar flow while Co3O4 was … J Yu Water Splitting Electrocatalysts in Acidic Media: in the Search of Non-noble … , 0
1.4. Oxygen evolution reaction J Yu Water Splitting Electrocatalysts in Acidic Media: in the Search of Non-noble … , 0