A unique sandwich structure of a CoMnP/Ni2P/NiFe electrocatalyst for highly efficient overall water splitting

2019 ◽  
Vol 7 (19) ◽  
pp. 12325-12332 ◽  
Author(s):  
Xiuming Bu ◽  
Renjie Wei ◽  
Wei Gao ◽  
Changyong Lan ◽  
Johnny C. Ho
Keyword(s):  
Water Splitting ◽  
Sandwich Structure ◽  
Cell Voltage ◽  
Alkaline Media ◽  
Bifunctional Electrocatalyst ◽  
Highly Efficient ◽  
Overall Water Splitting

A unique sandwich structure of CoMnP/Ni2P/NiFe is successfully achieved by introducing a Ni2P interlayer between CoMnP nanosheets and NiFe foam to achieve an excellent bifunctional electrocatalyst, yielding a low cell voltage of only 1.48 V at 10 mA cm−2 for overall water splitting in alkaline media.

scholarly journals Two-Dimensional Layered NiLiP2S6 Crystals as an Efficient Bifunctional Electrocatalyst for Overall Water Splitting

Catalysts ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 786
Author(s):  
Song-Jeng Huang ◽  
Adil Muneeb ◽  
Palani Sabhapathy ◽  
Khasim Saheb Bayikadi ◽  
Tahir Murtaza ◽  
...  
Keyword(s):  
Water Splitting ◽  
Current Density ◽  
Alkaline Media ◽  
Intrinsic Activity ◽  
Tafel Slope ◽  
Bifunctional Electrocatalyst ◽  
Long Term Stability ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
Earth Abundant

The quest of earth-abundant bifunctional electrocatalysts for highly efficient oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) is essential for clean and renewable energy systems. Herein, directed by the experimental analysis, we demonstrate layered nickel lithium phosphosulfide (NiLiP2S6) crystal as a highly efficient water-splitting catalyst in alkaline media. With strained lattice due to stacked layers as observed by TEM and electronic structure analysis performed by XPS showed mixed Ni2+,3+ oxidation states induced by addition of Li as a cation, NiLiP2S6 displays excellent OER (current density of 10 mA cm–2 showed an overpotential of 303 mV vs. RHE and a Tafel slope of 114 mV dec–1) and HER activity (current density of −10 mA cm–2 showed an overpotential of 184 mV vs. RHE and a Tafel slope of 94.5 mV dec–1). Finally, an alkaline media was employed to demonstrate the overall water splitting using NiLiP2S6 as both the anode and the cathode, which attained a 50 mA cm−2 current density at 1.68 V. This bimetallic phosphosulfide, together with long-term stability and enhanced intrinsic activity, shows enormous potential in water splitting applications.

A metal-vacancy-solid-solution NiAlP nanowall array bifunctional electrocatalyst for exceptional all-pH overall water splitting

2018 ◽  
Vol 6 (20) ◽  
pp. 9420-9427 ◽  
Author(s):  
Weiren Cheng ◽  
Hui Zhang ◽  
Xu Zhao ◽  
Hui Su ◽  
Fumin Tang ◽  
...  
Keyword(s):  
Solid Solution ◽  
Water Splitting ◽  
Bifunctional Electrocatalyst ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
Metal Vacancy

We design a 3D metal-vacancy-solid-solution NiAlδP nanowall array bifunctional electrocatalyst, which is highly efficient in pH-universal overall water splitting.

A multi-interfacial FeOOH@NiCo2O4 heterojunction as a highly efficient bifunctional electrocatalyst for overall water splitting

Nanoscale ◽  
2020 ◽  
Vol 12 (37) ◽  
pp. 19404-19412
Author(s):  
Xi Cao ◽  
Yan Sang ◽  
Lvxuan Wang ◽  
Gaofei Ding ◽  
Runhan Yu ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Water Splitting ◽  
Dual Function ◽  
Bifunctional Electrocatalyst ◽  
Highly Efficient ◽  
Overall Water Splitting

Multi-interfacial FeOOH@NiCo2O4 hybrid nanoflowers are successfully prepared by a two-step hydrothermal method. The as-obtained sample can be used as an efficient and stable dual-function electrocatalyst for overall water splitting.

Hierarchical MoS2/Ni3S2 core-shell nanofibers for highly efficient and stable overall-water-splitting in alkaline media

2018 ◽  
Vol 10 ◽  
pp. 214-221 ◽  
Author(s):  
Faze Wang ◽  
Hao Wu ◽  
Hong Sun ◽  
Li Ma ◽  
Wenzhong Shen ◽  
...  
Keyword(s):  
Water Splitting ◽  
Alkaline Media ◽  
Core Shell ◽  
Highly Efficient ◽  
Overall Water Splitting

Hierarchical Mo-doped CoP3 interconnected nanosheet arrays on carbon cloth as an efficient bifunctional electrocatalyst for water splitting in an alkaline electrolyte

2020 ◽  
Vol 49 (17) ◽  
pp. 5563-5572
Author(s):  
Shasha Zhang ◽  
Mingjing Guo ◽  
Shuyi Song ◽  
Ke Zhan ◽  
Ya Yan ◽  
...  
Keyword(s):  
Water Splitting ◽  
Alkaline Media ◽  
Alkaline Electrolyte ◽  
Carbon Cloth ◽  
Bifunctional Electrocatalyst ◽  
Overall Water Splitting ◽  
Nanosheet Arrays

Hierarchical Mo-doped CoP3 nanosheet arrays were fabricated on carbon cloth to serve as an efficient and robust bifunctional electrocatalyst for overall water splitting in alkaline media.

Sign in / Sign up

Export Citation Format

Share Document