scholarly journals Photocatalytic Overall Water Splitting over MIL-125(Ti) upon CoPi and Pt Co-catalyst Deposition

ChemistryOpen ◽  
2017 ◽  
Vol 6 (6) ◽  
pp. 701-705 ◽  
Author(s):  
Yang An ◽  
Benyan Xu ◽  
Yuanyuan Liu ◽  
Zeyan Wang ◽  
Peng Wang ◽  
...  
Keyword(s):  
Water Splitting ◽  
Co Catalyst ◽  
Overall Water Splitting

A Yin-Yang hybrid co-catalyst (CoOx-Mo2N) for photocatalytic overall water splitting

2021 ◽  
pp. 120491
Author(s):  
Baojun Ma ◽  
Yuying Dang ◽  
Dekang Li ◽  
Xiaoyan Wang ◽  
Keying Lin ◽  
...  
Keyword(s):  
Water Splitting ◽  
Co Catalyst ◽  
Overall Water Splitting ◽  
Yin Yang

Bridge-type interface optimization on a dual-semiconductor heterostructure toward high performance overall water splitting

2018 ◽  
Vol 6 (17) ◽  
pp. 7871-7876 ◽  
Author(s):  
Chong Wang ◽  
Bin Ma ◽  
Xingzhong Cao ◽  
Shan He ◽  
Jingbin Han ◽  
...  
Keyword(s):  
Water Splitting ◽  
High Performance ◽  
High Efficiency ◽  
Co Catalyst ◽  
Overall Water Splitting ◽  
Semiconductor Heterostructure ◽  
Bridge Type

A bridge-type interface was constructed in a Cu2O@ZnCr-LDH photocatalyst, and it imparts high efficiency for overall water splitting without any co-catalyst.

scholarly journals Mechanism for spontaneous oxygen and hydrogen evolution reactions on CoO nanoparticles

2019 ◽  
Vol 7 (12) ◽  
pp. 6708-6719 ◽  
Author(s):  
Kyoung-Won Park ◽  
Alexie M. Kolpak
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
High Efficiency ◽  
Applied Bias ◽  
Co Catalyst ◽  
Photocatalytic Water Splitting ◽  
Overall Water Splitting ◽  
Nanoparticle Suspensions ◽  
Hydrogen Evolution Reactions ◽  
Coo Nanoparticles

Overall photocatalytic water splitting with a high efficiency has recently been observed for CoO nanoparticle suspensions in the absence of an applied bias or co-catalyst. This study clarifies the mechanism of spontaneous overall water splitting with the prominent efficiency observed on the CoO nanoparticle.

scholarly journals Facile structure design based on C3N4 for mediator-free Z-scheme water splitting under visible light

2015 ◽  
Vol 5 (6) ◽  
pp. 3416-3422 ◽  
Author(s):  
Guixia Zhao ◽  
Xiubing Huang ◽  
Federica Fina ◽  
Guan Zhang ◽  
John T. S. Irvine
Keyword(s):  
Visible Light ◽  
Hydrothermal Method ◽  
Water Splitting ◽  
Structure Design ◽  
Co Catalyst ◽  
Overall Water Splitting

A mediator-free Z-scheme overall water splitting photocatalyst system is achieved through the use of C3N4 (H2 generation catalyst) and WO3 (O2 generation catalyst) composite from a hydrothermal method, and Pt as co-catalyst under visible light (λ > 420 nm).

Oxidative photo-deposition of chromia: tuning the activity for overall water splitting of the Rh/CrOx co-catalyst system

2017 ◽  
Vol 5 (33) ◽  
pp. 17248-17252 ◽  
Author(s):  
J. Menze ◽  
B. Mei ◽  
P. Weide ◽  
M. Muhler
Keyword(s):  
Water Splitting ◽  
Catalyst System ◽  
Co Catalyst ◽  
Overall Water Splitting ◽  
System P

By employing an oxidative photodeposition of CrOx the Rh/CrOx co-catalyst system was prepared on Ga2O3 and Ta2O5 resulting in up to 25% higher overall water splitting activities.

scholarly journals Photocatalytic overall water splitting under visible light enabled by a particulate conjugated polymer loaded with iridium

2022 ◽  
Author(s):  
Yang Bai ◽  
Chao Li ◽  
Lunjie Liu ◽  
Yuichi Yamaguchi ◽  
Bahri Mounib ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Water Splitting ◽  
Conjugated Polymer ◽  
Hydrogen Energy ◽  
Organic Polymers ◽  
Co Catalyst ◽  
Co Catalysts ◽  
Solar Water Splitting ◽  
Overall Water Splitting ◽  
Production Of Hydrogen

The production of hydrogen from water via solar water splitting is a potential method to overcome the intermittency of the Sun’s energy by storing it as a chemical fuel. Inorganic semiconductors have been studied extensively as photocatalysts for overall water splitting, but polymer photocatalysts are also receiving growing attention. So far, most studies involving organic polymers report hydrogen production with sacrificial electron donors, which is unsuitable for large-scale hydrogen energy production. Here we show that a linear conjugated polymer photocatalyst can be used for overall water splitting to produce stoichiometric amounts of H2 and O2. We studied a range of different metal co-catalysts in conjunction with the linear polymer photocatalyst, the homopolymer of dibenzo[b,d]thiophene sulfone (P10). Photocatalytic activity was observed for palladium/iridium oxide-loaded P10, while other co-catalysts resulted in materials that showed no activity for overall water splitting. The reaction conditions were further optimized and the overall water splitting using the IrO2-loaded P10 was found to proceed steadily for an extended period (>60 hours) after the system stabilized. These results demonstrate that conjugated polymers can act as single component photocatalytic systems for overall water splitting when loaded with suitable co-catalysts, albeit currently with low activities. Significantly, though, organic polymers can be designed to absorb a large fraction of the visible spectrum, which can be challenging with inorganic catalysts. Transient spectroscopy shows that the IrO2 co-catalyst plays an important role in the generation of the charge separated state required for water splitting, with evidence for fast hole transfer to the co-catalyst. This solid-state approach should be transferable to other polymer photocatalysts, allowing this field to move away from sacrificial hydrogen production towards overall water splitting.

A novel ligand with –NH2 and –COOH-decorated Co/Fe-based oxide for an efficient overall water splitting: dual modulation roles of active sites and local electronic structure

2020 ◽  
Vol 10 (18) ◽  
pp. 6266-6273
Author(s):  
Yalan Zhang ◽  
Zebin Yu ◽  
Ronghua Jiang ◽  
Jung Huang ◽  
Yanping Hou ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Water Splitting ◽  
Energy Demand ◽  
Active Sites ◽  
Electrode Materials ◽  
Global Energy ◽  
Overall Water Splitting ◽  
Local Electronic Structure ◽  
Electrochemical Water Splitting

Excellent electrochemical water splitting with remarkable durability can provide a solution to satisfy the increasing global energy demand in which the electrode materials play an important role.

Interlayer confinement synthesis of Ir nanodots/dual carbon as an electrocatalyst for overall water splitting

2020 ◽  
Author(s):  
Yaru Li ◽  
Yu-Quan Zhu ◽  
Weili Xin ◽  
Song Hong ◽  
Xiaoying Zhao ◽  
...  
Keyword(s):  
Water Splitting ◽  
Noble Metal ◽  
High Efficiency ◽  
Overall Water Splitting ◽  
Highly Dispersed

Rationally designing low-content and high-efficiency noble metal nanodots offers opportunities to enhance electrocatalytic performances for water splitting. However, the preparation of highly dispersed nanodots electrocatalysts remains a challenge. Herein, we...

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