Two-dimensional oxygen-deficient TiO2 nanosheets-supported Pt nanoparticles as durable catalyst for oxygen reduction reaction in proton exchange membrane fuel cells

Naik, Keerti M.; Higuchi, Eiji; Inoue, Hiroshi

doi:10.1016/j.jpowsour.2020.227972

Cited by 49 publications

(35 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Conductive metal oxides, such as TiO 2 , have received great attention as support materials due to their electrical conductivity, good chemical and electrochemical stability and strong tolerance in corrosive environments, such as acidic, alkaline or salt solutions. [99][100][101] Tungsten-based materials have also been studied as support materials in low-temperature fuel cells. WO 3supported Pt has better electrocatalytic performance and stability than Pt/C.…”

Section: Non-carbon-based Catalyst Supportsmentioning

confidence: 99%

A comprehensive review of MXenes as catalyst supports for the oxygen reduction reaction in fuel cells

et al. 2021

View full text Add to dashboard Cite

The oxygen reduction reaction (ORR) that occurs in the cathode of fuel cells is a major issue in proton exchange membrane fuel cells (PEMFCs) due to their sluggish kinetics. Exploring suitable materials for use as cathode catalysts can be challenging because the materials should be chemically active yet must be stable in an extremely corrosive environment in fuel cells. Since the successful introduction of graphene, 2-dimensional (2D) materials have received extensive research interest regarding their use as support materials for cathode catalysts due to their large surface area for catalyst dispersion. Recently, research on 2D MXene-based catalyst supports has started to increase. Excellent electronic properties, electrical conductivity, hydrophilicity and chemical and thermal stability are the key properties of potential MXenes used as catalyst supports. Therefore, in this review, the properties and performance of 2D MXene-based catalyst supports in the ORR are comprehensively discussed. This finding provides the groundwork for the exploration of MXenes in electrocatalysis, especially in the ORR. Challenges and future research directions are also discussed in this review.

show abstract

Section: Non-carbon-based Catalyst Supportsmentioning

confidence: 99%

A comprehensive review of MXenes as catalyst supports for the oxygen reduction reaction in fuel cells

et al. 2021

View full text Add to dashboard Cite

show abstract

“…To alleviate the negative effects of the amorphous carbon deterioration, corrosion-resistant carbon supports; CNT [ 7 , 8 ], CNF [ 9 ], and graphene [ 10 , 11 ], heteroatom doped carbon [ 12 ] and also metal oxide supports have been introduced in the literature [ 13 , 14 , 15 , 16 , 17 , 18 ]. Among varied metal oxides [ 19 , 20 , 21 ], TiO 2 draws prominent attention because of high chemical-durability and good corrosion-resistance under PEFCs operation.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Catalytic Activity and Durability of Pt Nanoparticle through Strong Chemical Interaction with Electrically Conductive Support of Magnéli Phase Titanium Oxide

et al. 2021

View full text Add to dashboard Cite

In this study, we address the catalytic performance of variously sized Pt nanoparticles (NPs) (from 1.7 to 2.9 nm) supported on magnéli phase titanium oxide (MPTO, Ti4O7) along with commercial solid type carbon (VXC-72R) for oxygen reduction reaction (ORR). Key idea is to utilize a robust and electrically conductive MPTO as a support material so that we employed it to improve the catalytic activity and durability through the strong metal-support interaction (SMSI). Furthermore, we increase the specific surface area of MPTO up to 61.6 m2 g−1 to enhance the SMSI effect between Pt NP and MPTO. After the deposition of a range of Pt NPs on the support materials, we investigate the ORR activity and durability using a rotating disk electrode (RDE) technique in acid media. As a result of accelerated stress test (AST) for 30k cycles, regardless of the Pt particle size, we confirmed that Pt/MPTO samples show a lower electrochemical surface area (ECSA) loss (<20%) than that of Pt/C (~40%). That is explained by the increased dissolution potential and binding energy of Pt on MPTO against to carbon, which is supported by the density functional theory (DFT) calculations. Based on these results, we found that conductive metal oxides could be an alternative as a support material for the long-term fuel cell operation.

show abstract

“…(3) Magnesium hydroxide formation: Mg 2+ + 2 OH -= Mg(OH) 2 (4) Water reduction (di-hydrogen production): 2H + + 2e -= H 2…”

Section: A Review Of Pure Magnesium For Hydrolysismentioning

confidence: 99%

“…The work presented in this paper is thus a contribution to improving the accessibility of hydrogen for production, storage, and use. The photocatalysis or equivalent methods are intensively studied and shows interesting results [1,2]. Also, many studies have been performed on sodium borohydride, NaBH 4 , or lithium borohydride, LiBH 4 , to examine its potential to store and release H 2 gas [3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Autonomous Hydrogen Production for Proton Exchange Membrane Fuel Cells PEMFC

Legrée¹,

Sabatier²,

Mauvy³

et al. 2020

JEPT

View full text Add to dashboard Cite

HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

show abstract

Two-dimensional oxygen-deficient TiO2 nanosheets-supported Pt nanoparticles as durable catalyst for oxygen reduction reaction in proton exchange membrane fuel cells

Cited by 49 publications

References 57 publications

A comprehensive review of MXenes as catalyst supports for the oxygen reduction reaction in fuel cells

A comprehensive review of MXenes as catalyst supports for the oxygen reduction reaction in fuel cells

Enhancement of Catalytic Activity and Durability of Pt Nanoparticle through Strong Chemical Interaction with Electrically Conductive Support of Magnéli Phase Titanium Oxide

Autonomous Hydrogen Production for Proton Exchange Membrane Fuel Cells PEMFC

Contact Info

Product

Resources

About