Journal article
An Integrated Photoelectrochemical-Chemical Loop for Solar-Driven Overall Splitting of Hydrogen Sulfide
Abundant and toxic hydrogen sulfide (H2S) from industry and nature has been traditionally considered a liability. However, it represents a potential resource if valuable H-2 and elemental sulfur can be simultaneously extracted through a H2S splitting reaction. Herein a photochemical-chemical loop linked by redox couples such as Fe2+/Fe3+ and I-/I-3(-) for photoelectrochemical H-2 production and H2S chemical absorption redox reactions are reported.
Using functionalized Si as photoelectrodes, H2S was successfully split into elemental sulfur and H-2 with high stability and selectivity under simulated solar light. This new conceptual design will not only provide a possible route for using solar energy to convert H2S into valuable resources, but also sheds light on some challenging photochemical reactions such as CH4 activation and CO2 reduction.
Language: | English |
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Year: | 2014 |
Pages: | 4399-4403 |
ISSN: | 15213773 and 14337851 |
Types: | Journal article |
DOI: | 10.1002/anie.201400571 |
ORCIDs: | Seger, Brian |
Carbon dioxide Chemical absorption Chemistry Conceptual design ENERGY-CONVERSION Electrochemistry Generation H2S H2S splitting Hydrogen generations Hydrogen production Hydrogen sulfide Iodine LIQUID-AMMONIA NONTHERMAL-PLASMA PHOTOCATALYTIC H-2 EVOLUTION Photo-electrochemistry Photochemical reactions Photoelectrochemicals Redox reactions SDG 7 - Affordable and Clean Energy Simulated solar light Simultaneous extractions Solar energy Splitting reactions Sulfur Sulfur determination Suspensions THERMAL-DECOMPOSITION VISIBLE-LIGHT IRRADIATION photoelectrochemistry