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Advanced Nb-Based MOF-Supported Co/Pt Nanocatalyst for Sustainable Hydrogen Production from Sodium Borohydride

持続可能な水素製造のためのNaBH4からの先進Nb系MOF担持Co/Ptナノ触媒 (AI 翻訳)

Giovana Barros Magalhães, Tatianny de Araujo Andrade, R. Moreira, R. C. da Silva, Gilberto Rodrigues da Silva Junior, J. D. de Jesus

ACS Omega📚 査読済 / ジャーナル2026-05-17#水素
DOI: 10.1021/acsomega.6c01980
原典: https://doi.org/10.1021/acsomega.6c01980

🤖 gxceed AI 要約

日本語

本研究は、ナトリウムボロハイドライドからの水素生成用の新しい触媒を報告。ニオブ系MOFにコバルト-白金ナノ粒子を担持し、高い水素発生速度と低活性化エネルギーを達成。水素エネルギー貯蔵問題の解決に貢献する可能性がある。

English

This study reports a novel niobium-based MOF-supported Co–Pt nanocatalyst for hydrogen generation from sodium borohydride, achieving a high hydrogen generation rate of 3214 mL min–1 g–1 and low activation energy of 17.45 kJ mol–1, contributing to hydrogen storage solutions.

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

📝 gxceed 編集解説 — Why this matters

日本のGX文脈において

日本は水素社会の実現を目指しており、本触媒技術は水素貯蔵・供給の効率化に寄与する可能性がある。ただし、実用化にはさらなる研究が必要。

In the global GX context

Hydrogen is a key element of global decarbonization strategies. This catalyst improves hydrogen release from chemical storage, relevant for fuel cell and hydrogen infrastructure development.

👥 読者別の含意

🔬研究者:Insights into MOF-supported bimetallic catalysts for hydrogen generation, potentially guiding future catalyst design.

📄 Abstract（原文）

Expanding renewable energy sources is essential for global decarbonization. Hydrogen (H2) is a clean energy carrier, but its storage remains challenging. Sodium borohydride (NaBH4) is attractive due to its high hydrogen content; however, its hydrolysis is kinetically slow and requires catalysts. In this study, a niobium-based Metal–Organic Framework, Nb(PDC)(BTC), where PDC is pyridine-2,5-dicarboxylate and BTC is benzene-1,3,5-tricarboxylate, was synthesized and used as a support for cobalt–platinum nanoparticles (Co–Pt NP) formed in situ. Fourier transform infrared spectroscopy (FT-IR) confirmed ligand coordination, X-ray diffraction (XRD) demonstrated the crystalline phase, and thermogravimetric analysis (TGA) showed good thermal stability. The Brunauer–Emmett–Teller (BET) surface area reached 1839.63 m2/g. Scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM) revealed rough crystalline morphology and well-dispersed spherical nanoparticles anchored to the support. Energy-dispersive X-ray spectroscopy (EDS) verified the presence of Nb, Co, and Pt. The catalyst achieved a hydrogen generation rate (HGR) of 3214 mL min–1 g–1 under optimal conditions (0.5 mmol of Co60Pt40 on 10 mg of Nb(PDC)(BTC); NaBH4 0.500 mol L–1 in sodium hydroxide (NaOH) 0.100 mol L–1 at 301.15 K), with an activation energy of 17.45 kJ mol–1, demonstrating strong potential for sustainable H2 production.

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