Engineered, Solid-State Processes for Enhanced Biosolar Hydrogen Production and Exploitation of Solar Energy with Tailored Light-Harvesting Systems

2012 ◽  
Author(s):  
Roger Ely ◽  
Catherine Page ◽  
David Kehoe
Keyword(s):  
Solid State ◽  
Hydrogen Production ◽  
Solar Energy ◽  
Light Harvesting ◽  
Harvesting Systems

scholarly journals Interfaces in metal halide perovskites probed by solid-state NMR spectroscopy

2021 ◽  
Author(s):  
Clayton J. Dahlman ◽  
Dominik J. Kubicki ◽  
G. N. Manjunatha Reddy
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Solar Energy ◽  
Energy Conversion ◽  
Solid State Nmr ◽  
Light Harvesting ◽  
Metal Halide ◽  
Single Junction ◽  
Halide Perovskites ◽  
Conversion Efficiencies

Metal halide perovskites (MHPs) are promising light harvesting and emitting materials that have enabled solar energy conversion efficiencies of over 25% in solution-processed single-junction cells, and found applications in flexible...

An efficient charge separation and photocurrent generation in the carbon dot–zinc oxide nanoparticle composite

Nanoscale ◽  
2017 ◽  
Vol 9 (20) ◽  
pp. 6791-6799 ◽  
Author(s):  
Monoj Kumar Barman ◽  
Piyali Mitra ◽  
Rajesh Bera ◽  
Somnath Das ◽  
Amitava Pramanik ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Renewable Energy ◽  
Solar Energy ◽  
Charge Separation ◽  
Light Harvesting ◽  
Zinc Oxide Nanoparticle ◽  
Photocurrent Generation ◽  
Harvesting Systems ◽  
Efficient Charge ◽  
Oxide Nanoparticle

The development of light harvesting systems based on heterostructures for efficient conversion of solar energy to renewable energy is an emerging area of research.

Recent advances in conjugated microporous polymers for photocatalysis: designs, applications, and prospects

2020 ◽  
Vol 8 (14) ◽  
pp. 6434-6470 ◽  
Author(s):  
Songhao Luo ◽  
Zhuotong Zeng ◽  
Guangming Zeng ◽  
Zhifeng Liu ◽  
Rong Xiao ◽  
...  
Keyword(s):  
Solar Energy ◽  
Energy Conversion ◽  
Light Harvesting ◽  
Solar Energy Conversion ◽  
Microporous Polymers ◽  
Recent Advances ◽  
Harvesting Systems ◽  
Conjugated Microporous Polymers

Conjugated microporous polymers (CMPs) provide a platform to construct light harvesting systems and catalytic centers to realize solar energy conversion.

Efficient artificial light-harvesting systems based on aggregation-induced emission constructed in supramolecular gels

Soft Matter ◽  
2021 ◽  
Author(s):  
Xinxian Ma ◽  
bo qiao ◽  
Jinlong Yue ◽  
JingJing Yu ◽  
yutao geng ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Rhodamine B ◽  
Fluorescent Dyes ◽  
Light Harvesting ◽  
Artificial Light ◽  
Efficient Energy Transfer ◽  
Aggregation Induced Emission ◽  
Efficient Energy ◽  
Harvesting Systems ◽  
Acyl Hydrazone

Based on a new designed acyl hydrazone gelator (G2), we developed an efficient energy transfer supramolecular organogel in glycol with two different hydrophobic fluorescent dyes rhodamine B (RhB) and acridine...

scholarly journals Solid-State Redox Kinetics of CeO2 in Two-Step Solar CH4 Partial Oxidation and Thermochemical CO2 Conversion

Catalysts ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 723
Author(s):  
Mahesh Muraleedharan Nair ◽  
Stéphane Abanades
Keyword(s):  
Solid State ◽  
Solar Energy ◽  
Kinetic Models ◽  
Oxygen Carrier ◽  
Co2 Conversion ◽  
Oxidation Reactions ◽  
Redox Kinetics ◽  
Concentrated Solar Energy ◽  
Ceria Reduction ◽  
Kinetics Of

The CeO2/CeO2−δ redox system occupies a unique position as an oxygen carrier in chemical looping processes for producing solar fuels, using concentrated solar energy. The two-step thermochemical ceria-based cycle for the production of synthesis gas from methane and solar energy, followed by CO2 splitting, was considered in this work. This topic concerns one of the emerging and most promising processes for the recycling and valorization of anthropogenic greenhouse gas emissions. The development of redox-active catalysts with enhanced efficiency for solar thermochemical fuel production and CO2 conversion is a highly demanding and challenging topic. The determination of redox reaction kinetics is crucial for process design and optimization. In this study, the solid-state redox kinetics of CeO2 in the two-step process with CH4 as the reducing agent and CO2 as the oxidizing agent was investigated in an original prototype solar thermogravimetric reactor equipped with a parabolic dish solar concentrator. In particular, the ceria reduction and re-oxidation reactions were carried out under isothermal conditions. Several solid-state kinetic models based on reaction order, nucleation, shrinking core, and diffusion were utilized for deducing the reaction mechanisms. It was observed that both ceria reduction with CH4 and re-oxidation with CO2 were best represented by a 2D nucleation and nuclei growth model under the applied conditions. The kinetic models exhibiting the best agreement with the experimental reaction data were used to estimate the kinetic parameters. The values of apparent activation energies (~80 kJ·mol−1 for reduction and ~10 kJ·mol−1 for re-oxidation) and pre-exponential factors (~2–9 s−1 for reduction and ~123–253 s−1 for re-oxidation) were obtained from the Arrhenius plots.

Colocalization of Light Harvesting and Catalytic Units in ‘Soft’ Coordination Polymer Hydrogel toward Visible-Light Driven Photocatalytic Hydrogen Production

2021 ◽  
Author(s):  
Parul Verma ◽  
Ashish Singh ◽  
Faruk Ahamed Rahimi ◽  
Tapas Kumar Maji
Keyword(s):  
Hydrogen Production ◽  
Coordination Polymer ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Light Harvesting ◽  
Sustainable Energy ◽  
Supramolecular Assembly ◽  
Polymer Hydrogel ◽  
Visible Light Driven ◽  
Molecular Components

Colocalization of essential molecular components in the solvated soft supramolecular assembly towards realizing visible-light-driven hydrogen evolution would be an exciting approach for sustainable energy by generating clean solar fuel. In...

scholarly journals Polaron effects on the performance of light-harvesting systems: a quantum heat engine perspective

2016 ◽  
Vol 18 (2) ◽  
pp. 023003 ◽  
Author(s):  
Dazhi Xu ◽  
Chen Wang ◽  
Yang Zhao ◽  
Jianshu Cao
Keyword(s):  
Light Harvesting ◽  
Heat Engine ◽  
Quantum Heat Engine ◽  
Harvesting Systems
Sign in / Sign up

Export Citation Format

Share Document