scholarly journals Plasmonic Ag decorated CdMoO4 as an efficient photocatalyst for solar hydrogen production

RSC Advances ◽  
2019 ◽  
Vol 9 (49) ◽  
pp. 28525-28533 ◽  
Author(s):  
Yogesh A. Sethi ◽  
Aniruddha K. Kulkarni ◽  
Supriya K. Khore ◽  
Rajendra P. Panmand ◽  
Sandip C. Kanade ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrothermal Method ◽  
Hydrogen Generation ◽  
Plasmonic Enhancement ◽  
Solar Hydrogen ◽  
Photocatalytic Hydrogen Generation ◽  
Solar Hydrogen Production

Plasmonic enhancement of photocatalytic hydrogen generation is demonstrated using hierarchical Ag decorated CdMoO4 synthesized using a hydrothermal method.

Cascade charge transfer mediated by in situ interface modulation toward solar hydrogen production

2019 ◽  
Vol 7 (15) ◽  
pp. 8938-8951 ◽  
Author(s):  
Yu-Bing Li ◽  
Tao Li ◽  
Xiao-Cheng Dai ◽  
Ming-Hui Huang ◽  
Yunhui He ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Hydrogen Production ◽  
Hydrogen Generation ◽  
Solar Hydrogen ◽  
Photocatalytic Hydrogen Generation ◽  
Visible Light Driven ◽  
Solar Hydrogen Production ◽  
A Charge ◽  
Interface Modulation

An in situ phase self-transformation combined with an exquisite interface modulation was developed to trigger a charge transfer cascade for visible-light-driven photocatalytic hydrogen generation.

Single crystalline Cu2ZnSnS4 nanosheet arrays for efficient photochemical hydrogen generation

RSC Advances ◽  
2015 ◽  
Vol 5 (4) ◽  
pp. 2543-2549 ◽  
Author(s):  
Bo-Jun Li ◽  
Peng-Fei Yin ◽  
Yu-Zhu Zhou ◽  
Zhi-Ming Gao ◽  
Tao Ling ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Glass Substrate ◽  
Hydrogen Generation ◽  
Solar Hydrogen ◽  
Single Crystalline ◽  
Conductive Glass ◽  
Nanosheet Arrays ◽  
Solar Hydrogen Production

We present a scalable route for the preparation of single crystalline Cu2ZnSnS4 nanosheet arrays on conductive glass substrate, and demonstrate this architecture as an effective photocathode for solar hydrogen production.

scholarly journals Unique hierarchical SiO2@ZnIn2S4 marigold flower like nanoheterostructure for solar hydrogen production

RSC Advances ◽  
2021 ◽  
Vol 11 (24) ◽  
pp. 14399-14407
Author(s):  
Aarti R. Gunjal ◽  
Yogesh A. Sethi ◽  
Ujjwala V. Kawade ◽  
Rajendra P. Panmand ◽  
Chitra K. Ugale ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrothermal Method ◽  
The Novel ◽  
Solar Hydrogen ◽  
Solar Hydrogen Production

The novel marigold flower like SiO2@ZnIn2S4 nano-heterostructure was fabricated using an in situ hydrothermal method.

scholarly journals NiO-TiO2 p-n Heterojunction for Solar Hydrogen Generation

Catalysts ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1427
Author(s):  
Dewen Zheng ◽  
Heng Zhao ◽  
Shanyu Wang ◽  
Jinguang Hu ◽  
Zhangxin Chen
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Generation ◽  
Sol Gel ◽  
Interfacial Interaction ◽  
Preparation Methods ◽  
Solar Hydrogen ◽  
Photocatalytic Hydrogen Production ◽  
Photocatalytic Hydrogen Generation ◽  
Promising Strategy ◽  
Photogenerated Electrons

Photocatalytic water splitting for hydrogen production has been widely recognized as a promising strategy for relieving the pressure from energy crisis and environmental pollution. However, current efficiency for photocatalytic hydrogen generation has been limited due to a low separation of photogenerated electrons and holes. p-n heterojunction with a built-in electric field emerges as an efficient strategy for photocatalyst design to boost hydrogen evolution activities due to a spontaneous charge separation. In this work, we investigated the effect of different preparation methods on photocatalytic hydrogen production over NiO-TiO2 composites. The results demonstrated that a uniform distribution of NiO on a surface of TiO2 with an intimate interfacial interaction was formed by a sol-gel method, while direct calcination tended to form aggregation of NiO, thus leading to an uneven p-n heterojunction structure within a photocatalyst. NiO-TiO2 composites fabricated by different methods showed enhanced hydrogen production (23.5 ± 1.2, 20.4 ± 1.0 and 8.8 ± 0.7 mmolh−1g−1 for S1-20%, S2-20% and S3-10%, respectively) as compared with pristine TiO2 (6.6 ± 0.7 mmolh−1g−1) and NiO (2.1 ± 0.2 mmolh−1g−1). The current work demonstrates a good example to improve photocatalytic hydrogen production by finely designing p-n heterojunction photocatalysts.

Photocatalytic hydrogen generation using mesoporous silicon nanoparticles: influence of magnesiothermic reduction conditions and nanoparticle aging on the catalytic activity

Nanoscale ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 2685-2692
Author(s):  
Isabel S. Curtis ◽  
Ryan J. Wills ◽  
Mita Dasog
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Production ◽  
Silicon Nanoparticles ◽  
Hydrogen Generation ◽  
Oxide Content ◽  
Magnesiothermic Reduction ◽  
Mesoporous Silicon ◽  
High Crystallinity ◽  
Photocatalytic Hydrogen Generation

High crystallinity, low oxide content, and low sintering lead to optimally performing mesoporous Si photocatalysts for solar-driven hydrogen production.

scholarly journals Efficiency gains for thermally coupled solar hydrogen production in extreme cold

2021 ◽  
Author(s):  
Moritz Kölbach ◽  
Kira Rehfeld ◽  
Matthias M. May
Keyword(s):  
Hydrogen Production ◽  
Thermal Coupling ◽  
Efficiency Gains ◽  
Solar Hydrogen ◽  
World Regions ◽  
Extreme Cold ◽  
Solar Hydrogen Production

We analyse the potential of solar hydrogen production in remote and cold world regions such as Antarctica and quantify the efficiency benefits of thermal coupling.

scholarly journals Electrochemical Hydrogen Production Powered by PV/CSP Hybrid Power Plants: A Modelling Approach for Cost Optimal System Design

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3437
Author(s):  
Andreas Rosenstiel ◽  
Nathalie Monnerie ◽  
Jürgen Dersch ◽  
Martin Roeb ◽  
Robert Pitz-Paal ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Power Plants ◽  
Large Scale ◽  
Energy System ◽  
Solar Hydrogen ◽  
Energy System Model ◽  
Optimal System Design ◽  
Solar Hydrogen Production ◽  
Electrochemical Water Splitting ◽  
Climate Neutrality

Global trade of green hydrogen will probably become a vital factor in reaching climate neutrality. The sunbelt of the Earth has a great potential for large-scale hydrogen production. One promising pathway to solar hydrogen is to use economically priced electricity from photovoltaics (PV) for electrochemical water splitting. However, storing electricity with batteries is still expensive and without storage only a small operating capacity of electrolyser systems can be reached. Combining PV with concentrated solar power (CSP) and thermal energy storage (TES) seems a good pathway to reach more electrolyser full load hours and thereby lower levelized costs of hydrogen (LCOH). This work introduces an energy system model for finding cost-optimal designs of such PV/CSP hybrid hydrogen production plants based on a global optimization algorithm. The model includes an operational strategy which improves the interplay between PV and CSP part, allowing also to store PV surplus electricity as heat. An exemplary study for stand-alone hydrogen production with an alkaline electrolyser (AEL) system is carried out. Three different locations with different solar resources are considered, regarding the total installed costs (TIC) to obtain realistic LCOH values. The study shows that a combination of PV and CSP is an auspicious concept for large-scale solar hydrogen production, leading to lower costs than using one of the technologies on its own. For today’s PV and CSP costs, minimum levelized costs of hydrogen of 4.04 USD/kg were determined for a plant located in Ouarzazate (Morocco). Considering the foreseen decrease in PV and CSP costs until 2030, cuts the LCOH to 3.09 USD/kg while still a combination of PV and CSP is the most economic system.

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