Trifunctional phosphorus-doped cobalt molybdate catalyst in self-driven coupling systems for synchronized sulfur recovery and hydrogen evolution

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 674, P. 145 - 157

Published: June 21, 2024

Language: Английский

---

Bifunctional Ni3S2 nanoflake/NiMoO4 nanoneedle composite electrocatalysts for efficient urea oxidation and hydrogen evolution in sustainable water electrolysis

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162044 - 162044

Published: April 1, 2025

Language: Английский

---

Synergistic Effect of NiMoO₄ Nanorods with Polyaniline for Efficient Electrochemical Water Splitting

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 29, 2025

Electrochemical water splitting has emerged as a promising solution for sustainable hydrogen production, but the development of efficient, durable, and cost-effective bifunctional electrocatalysts remains critical challenge. In this work, we report novel fabrication composite materials consisting nickel molybdate (NiMoO4) coated with polyaniline (PANI). NiMoO4 nanorods were initially synthesized on foam (NF) using hydrothermal technique subsequently PANI via UV-assisted polymerization. The resulting NiMoO4@PANI nanostructures demonstrate increased active sites improved efficiency in electron transfer catalytic activity. This combination enhanced evolution reaction (HER) oxygen (OER) performance, achieving reduced overpotential values 88 167 mV HER OER at 10 mA cm-2, respectively. Comprehensive electrochemical evaluations, including Tafel slope, impedance spectroscopy (EIS), double-layer capacitance (Cdl) measurements, validate enhancements kinetics charge facilitated by coating. Density functional theory (DFT) calculations offer further insights into efficiency, showing barrier (ΔGb = 0.45 eV), nearly negligible adsorption energy (ΔG*H 0.08 appropriate (ΔG*OOH - ΔG*OH 2.58 high density states close to Fermi level. exhibit excellent stability 310 h without interruption, suggesting potential production.

Language: Английский

---

In situ construction of W-doped Co-P electrocatalyst by electrodeposition for boosting alkaline water/seawater hydrogen evolution reaction

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 89, P. 1430 - 1439

Published: Oct. 7, 2024

Language: Английский

---

Dandelion-like VSe2-embellished CuSe-Co3Se4 hollow nanotube clusters as bifunctional catalysts for high-performance alkaline hydrogen evolution and solar cells

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 675, P. 761 - 771

Published: July 9, 2024

Language: Английский

---

Novel electrosynthesis of Co–Mn–P nanosheets as efficient, economical and stable electrode materials for hydrogen evolution reaction and urea oxidation reaction

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 95, P. 12 - 21

Published: Nov. 17, 2024

Language: Английский

---

Engineering electronic structures and oxygen vacancies of manganese-doped nickel molybdate porous nanosheets for efficient oxygen evolution reaction

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 676, P. 680 - 690

Published: July 15, 2024

Language: Английский

---

Intermetallic MnNi3 phase separated from nanoporous nickel as hydrogen evolution electrocatalyst in basic media

Sustainable Energy & Fuels, Journal Year: 2024, Volume and Issue: 8(18), P. 4272 - 4280

Published: Jan. 1, 2024

Dealloying-derived intermetallic MnNi 3 possesses porous-ligament structure with an ultra-large specific surface area, exhibiting superior electrocatalytic activity and robustness towards alkaline hydrogen evolution industrial water electrolysis.

Language: Английский

---

Transition metal nanomaterial-based electrocatalysts for water and CO2 electrolysis: preparation, catalytic activity, and prospects

Frontiers in Energy Research, Journal Year: 2024, Volume and Issue: 12

Published: Oct. 24, 2024

The production of hydrogen (H 2 ) and multi-carbon fuels through water electrolysis (oxygen evolution reaction (OER)/hydrogen (HER)) water–CO co-electrolysis (OER/CO reduction (CO RR)), respectively, is supposed to be the emergent energy carrier. These electrochemical processes are essential chemical conversion pathways that initiate changes toward renewable energy. This review summarizes systematic design earth-abundant transition metal-based nanomaterials their electrocatalytic activities reactions such as OER, HER, CO RR. primary focus on fabricating highly effective, low-cost, advanced nanostructures for both OER/HER OER/CO RR systems. Developing synthetic strategies surface morphology-controlled nanostructured electrocatalysts, engineering electrode surface, enhancing activity, understanding relationship between intrinsic catalytic activity preparation approaches or precursor choices, exploring mechanism focused on. Furthermore, current challenges, figure-of-merit, prospects described. study may open new opportunities develop shape-controlled high-performance electrocatalysts storage reactions.

Language: Английский

---

Self-supported bifunctional P–CoSe/NF electrodes for high efficiency and durability hydrogen production coupled with sulfion valorization

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 95, P. 840 - 848

Published: Nov. 21, 2024

Language: Английский

---