journal article·2025-04-07

Immobilized Gold Nanoparticles on a Glass-Based Scaffold for Direct Solar-Driven H2 from Water Vapor

Riya Haldar, Noah Jacob, Gadudhula Ganesh, Kaustuv Chatterjee, Indrajeet Mandal, Anustup Chakraborty, Keya Haldar, Prabir Pal, Goutam Kishore Gupta, N. M. Anoop Krishnan, Manohar Chirumamilla, Mallikarjuna Rao Motapothula, Eswaraiah Varrla, Amarnath R. Allu

ACS Materials Letters· Volume 7· Issue 4
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Abstract

Solar-driven green hydrogen (H 2 ) production through photocatalytic water splitting is a promising solution to combat climate change. A key challenge lies in developing photocatalyst materials capable of efficiently splitting water vapor under practical conditions. In this study, we present a photocatalytic system based on gold nanoparticles immobilized on a glass-based porous scaffold through reactive metal support interactions. This structure exhibits a high solar-to-hydrogen (STH) conversion efficiency of 2.2% under simulated solar light. Long-term cycling tests demonstrate stable H 2 evolution, with observed declines in efficiency caused by surface hydroxyl and carboxyl group formation, although it is effectively restored through plasma treatment. These findings provide valuable insights into the design of robust and efficient photocatalytic materials, advancing the potential path for scalable commercial applications.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Advanced Photocatalysis Techniques · Solar-Powered Water Purification Methods · Copper-based nanomaterials and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

CSIR-Central Glass and Ceramic Research Institute, 196 Raja S C Mullick Road, 700 032, Kolkata, India

Academy of Scientific and Innovative Research (AcSIR)

Department of Physics

SRM University AP

Sustainable Nanomaterials and Technologies Lab, Department of Physics and Nanotechnology

SRM Institute of Science and Technology, Kattankulathur

School of Interdisciplinary Research

Indian Institute of Technology Delhi

Department of Civil Engineering

Department of Materials and Production, Aalborg University, Skjernvej 4A, Aalborg 9220, Denmark

Funding

Council of Scientific and Industrial Research, India · Department of Science and Technology, Ministry of Science and Technology, India · SRM Institute of Science and Technology · Centre for High Technology, Ministry of Petroleum and Natural Gas

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