Article, 2024
H‐Glass Supported Hybrid Gold Nano‐Islands for Visible‐Light‐Driven Hydrogen Evolution
Small,
ISSN
1613-6829,
1613-6810,
Volume 20,
27,
Page e2401131,
10.1002/smll.202401131
Contributors
Mandal, Indrajeet
[1]
Gangareddy, Jagannath
0000-0002-0594-4129
[1]
Sethurajaperumal, Abimannan
0000-0003-0828-9235
[2]
Nk, Murugasenapathi
[3]
[4]
Majji, Manikanta
[5]
Bera, Susmita
[6]
Rudra, Pratyasha
0009-0000-3159-9069
[1]
[4]
Ravichandran, Vanmathi
[2]
Bysakh, Sandip
0000-0003-2651-2015
[1]
Jacob, Noah
[5]
Rao, K D M
[7]
Singh, Rajiv Kumar
0000-0003-2602-9293
[4]
[8]
Krishnan, N M Anoop
[9]
Chirumamilla, Manohar
0000-0002-6812-286X
(Corresponding author)
[10]
[11]
Palanisamy, Tamilarasan
0000-0001-9957-8440
(Corresponding author)
[3]
[4]
Motapothula, Mallikarjuna Rao
0000-0001-8039-9602
(Corresponding author)
[5]
Varrla, Eswaraiah
0000-0003-0246-0695
(Corresponding author)
[2]
Ghosh, Srabanti
(Corresponding author)
[1]
[4]
Allu, Amarnath Reddy
0000-0003-0450-0929
(Corresponding author)
[1]
[4]
Affiliations
- [1]
Central Glass and Ceramic Research Institute
[NORA names:
India; Asia, South];
- [2]
SRM Institute of Science and Technology
[NORA names:
India; Asia, South];
- [3]
Central Electrochemical Research Institute
[NORA names:
India; Asia, South];
- [4]
Academy of Scientific and Innovative Research
[NORA names:
India; Asia, South];
- [5]
Department of Physics, SRM University AP, Amaravati, Andhra Pradesh, 522502, India.
[NORA names:
India; Asia, South];
(... more)
- [6]
TCG Crest
[NORA names:
India; Asia, South];
- [7]
Indian Association for the Cultivation of Science
[NORA names:
India; Asia, South];
- [8]
CSIR National Physical Laboratory of India
[NORA names:
India; Asia, South];
- [9]
Indian Institute of Technology Delhi
[NORA names:
India; Asia, South];
- [10]
Aalborg University
[NORA names:
AAU Aalborg University;
University; Denmark; Europe, EU; Nordic; OECD];
- [11]
Hamburg University of Technology
[NORA names:
Germany; Europe, EU; OECD]
(less)
Abstract
Flat panel reactors, coated with photocatalytic materials, offer a sustainable approach for the commercial production of hydrogen (H2) with zero carbon footprint. Despite this, achieving high solar-to-hydrogen (STH) conversion efficiency with these reactors is still a significant challenge due to the low utilization efficiency of solar light and rapid charge recombination. Herein, hybrid gold nano-islands (HGNIs) are developed on transparent glass support to improve the STH efficiency. Plasmonic HGNIs are grown on an in-house developed active glass sheet composed of sodium aluminum phosphosilicate oxide glass (H-glass) using the thermal dewetting method at 550 °C under an ambient atmosphere. HGNIs with various oxidation states (Au0, Au+, and Au-) and multiple interfaces are obtained due to the diffusion of the elements from the glass structure, which also facilitates the lifetime of the hot electron to be ≈2.94 ps. H-glass-supported HGNIs demonstrate significant STH conversion efficiency of 0.6%, without any sacrificial agents, via water dissociation. This study unveils the specific role of H-glass-supported HGNIs in facilitating light-driven chemical conversions, offering new avenues for the development of high-performance photocatalysts in various chemical conversion reactions for large-scale commercial applications.
Keywords
H-glass,
HGNI,
STH conversion efficiency,
agents,
ambient atmosphere,
applications,
atmosphere,
carbon,
carbon footprint,
chemical,
chemical conversion,
chemical conversion reactions,
commercial products,
conversion,
conversion efficiency,
conversion reaction,
development,
development of high-performance photocatalysts,
dewetting method,
diffusion,
dissociation,
efficiency,
electron,
elements,
evolution,
flat panel reactors,
footprint,
glass,
glass sheets,
glass structure,
glass support,
gold nano-islands,
high solar-to-hydrogen,
high-performance photocatalysts,
hot electrons,
hydrogen,
hydrogen (H<sub>2</sub>,
hydrogen evolution,
in-house,
interface,
lifetime,
light,
low utilization efficiency,
materials,
method,
multiple interfaces,
nano-islands,
oxidation,
oxidation state,
oxide glasses,
photocatalyst,
photocatalytic materials,
production of hydrogen (H<sub>2</sub>,
reaction,
reactor,
sacrificial agent,
sheet,
sodium,
solar light,
solar-to-hydrogen,
solar-to-hydrogen efficiency,
state,
structure,
study,
support,
thermal dewetting method,
utilization efficiency of solar light,
water,
water dissociation
Funders
Data Provider: Digital Science