Details

Autor(en) / Beteiligte

• Gonuguntla, Spandana
• Sk, Saddam
• Tripathi, Anjana
• Thapa, Ranjit
• Jonnalagadda, Gopinath
• Nayak, Chandrani
• Bhattacharyya, Dibyendu
• Jha, S N
• Sesha Sainath, Annadanam V
• Perupogu, Vijayanand
• Pal, Ujjwal

Titel

Anisotropic phenanthroline-based ruthenium polymers grafted on a titanium metal-organic framework for efficient photocatalytic hydrogen evolution

Ist Teil von

• Communications chemistry, 2022-12, Vol.5 (1), p.165-165, Article 165

Ort / Verlag

England: Nature Publishing Group

Erscheinungsjahr

2022

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• Conjugated polymers and titanium-based metal-organic framework (Ti-MOF) photocatalysts have demonstrated promising features for visible-light-driven hydrogen production. We report herein a strategy of anisotropic phenanthroline-based ruthenium polymers (PPDARs) over Ti-MOF, a tunable platform for efficient visible-light-driven photocatalytic hydrogen evolution reaction (HER). Several analytical methods including X-ray absorption spectroscopy (XAS) revealed the judicious integration of the surface-active polymer over the Ti-MOF reinforcing the catalytic activity over the broad chemical space. PPDAR-4 polyacrylate achitecture led to a substantial increase in the H evolution rate of 2438 µmolg h (AQY: 5.33%) compared to pristine Ti-MOF (238 µmol g  h ). The separation of photogenerated charge carriers at the PPDAR-4/Ti-MOF interface was confirmed by the optical and electrochemical investigations. The experimental, as well as theoretical data, revealed their physical and chemical properties which are positively correlated with the H generation rate. This offers a new avenue in creating polymer-based MOF robust photocatalysts for sustainable energy.