Experimental and Theoretical Insights into Transition-Metal (Mo, Fe) Codoping in a Bifunctional Nickel Phosphide Microsphere Catalyst for Enhanced Overall Water Splitting

2021 ◽  
Author(s):  
S. M. Pawar ◽  
Abu Talha Aqueel Ahmed ◽  
Chi Ho Lee ◽  
P. T. Babar ◽  
J. H. Kim ◽  
...  
Keyword(s):  
Transition Metal ◽  
Water Splitting ◽  
Nickel Phosphide ◽  
Overall Water Splitting

2D porous molybdenum nitride/cobalt nitride heterojunction nanosheets with interfacial electron redistribution for effective electrocatalytic overall water splitting

2021 ◽  
Author(s):  
Hao Guo ◽  
Aiping Wu ◽  
Ying Xie ◽  
Haijing Yan ◽  
Dongxu Wang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Water Splitting ◽  
Molybdenum Nitride ◽  
Overall Water Splitting ◽  
Simultaneous Engineering

The binary transition metal-based nitrides are promising for overall water splitting. The morphology and heterojunction engineering are important to realize the effective catalysis, but simultaneous engineering of them remains a...

scholarly journals Integration of Bio-inspired lanthanide-transition metal cluster and P-doped carbon nitride for efficient photocatalytic overall water splitting

2020 ◽  
Author(s):  
Rong Chen ◽  
Gui-Lin Zhuang ◽  
Zhi-Ye Wang ◽  
Yi-Jing Gao ◽  
Zhe Li ◽  
...  
Keyword(s):  
Transition Metal ◽  
Water Splitting ◽  
Water Oxidation ◽  
Transient Absorption ◽  
Metal Cluster ◽  
Photoexcited Electron ◽  
Ps Ii ◽  
Heterometallic Cluster ◽  
Overall Water Splitting ◽  
Oxygen Evolving

Abstract Photosynthesis in nature uses the Mn4CaO5 cluster as the oxygen-evolving center to catalyze the water oxidation efficiently in photosystem II (PS II). Herein, we demonstrate a bio-inspired heterometallic cluster LnCo3 (Ln = Nd, Eu and Ce) clusters, which can be viewed as synthetic analogs of CaMn4O5 cluster. Anchoring LnCo3 on phosphorus-doped graphitic carbon nitrides (PCN) shows efficient overall water splitting without any sacrificial reagents. The NdCo3/PCN-c photocatalyst exhibits excellent water splitting activity and a quantum efficiency of 2.0% at 350 nm. Ultrafast transient absorption (TA) spectroscopy revealed the transfer of photoexcited electron and hole into the PCN and LnCo3 for hydrogen and oxygen evolution reactions, respectively. DFT calculation showed the cooperative water activation on lanthanide and O-O bond formation on transition metal for water oxidation. This work not only prepares a synthetic model of bio-inspired oxygen-evolving center but also provides an effective strategy to realize light-driven overall water splitting.

Fast fabrication of self-supported porous nickel phosphide foam for efficient, durable oxygen evolution and overall water splitting

2016 ◽  
Vol 4 (15) ◽  
pp. 5639-5646 ◽  
Author(s):  
Xiaoguang Wang ◽  
Wei Li ◽  
Dehua Xiong ◽  
Lifeng Liu
Keyword(s):  
Energy Efficiency ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Nickel Phosphide ◽  
Porous Nickel ◽  
Step Method ◽  
Overall Water Splitting ◽  
Operation Conditions ◽  
One Step

Self-supported porous Ni–P foam is fabricated by a convenient one-step method, and exhibits excellent electrocatalytic performance towards oxygen evolution reaction. An alkaline electrolyzer constructed using two self-supported porous Ni–P foams shows superior energy efficiency of 90.2% at 10 mA cm−2, and can sustain 1000 h under operation conditions without obvious degradation.

O2 plasma and cation tuned nickel phosphide nanosheets for highly efficient overall water splitting

Nano Energy ◽  
2018 ◽  
Vol 54 ◽  
pp. 82-90 ◽  
Author(s):  
Khang Ngoc Dinh ◽  
Xiaoli Sun ◽  
Zhengfei Dai ◽  
Yun Zheng ◽  
Penglun Zheng ◽  
...  
Keyword(s):  
Water Splitting ◽  
Nickel Phosphide ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
O2 Plasma
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