Bimetallic thin film NiCo–NiCoO2@NC as a superior bifunctional electrocatalyst for overall water splitting in alkaline media

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.

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

Dalton Transactions ◽

10.1039/d0dt00671h ◽

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.

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Cobalt nanoparticles embedded in porous N-rich carbon as an efficient bifunctional electrocatalyst for water splitting

Journal of Materials Chemistry A ◽

10.1039/c6ta00223d ◽

2016 ◽

Vol 4 (9) ◽

pp. 3204-3209 ◽

Cited By ~ 131

Author(s):

Xingyue Li ◽

Zhiguo Niu ◽

Jing Jiang ◽

Lunhong Ai

Keyword(s):

Water Splitting ◽

Anode Materials ◽

Cobalt Nanoparticles ◽

Alkaline Media ◽

Bifunctional Electrocatalyst ◽

Overall Water Splitting

Cobalt nanoparticles embedded in porous N-rich carbon (PNC/Co) can perform as both active cathode and anode materials to drive the overall water splitting in alkaline media for simultaneous electrogeneration of hydrogen and oxygen gases.

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Thin-film iron-oxide nanobeads as bifunctional electrocatalyst for high activity overall water splitting

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2020.11.271 ◽

2021 ◽

Author(s):

Noor-Ul-Ain Babar ◽

Yasir Faheem Joya ◽

Hassan Khalil ◽

Fayyaz Hussain ◽

Khurram Saleem Joya

Keyword(s):

Thin Film ◽

Iron Oxide ◽

High Activity ◽

Water Splitting ◽

Bifunctional Electrocatalyst ◽

Overall Water Splitting

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Self-standing and efficient bifunctional electrocatalyst for overall water splitting under alkaline media enabled by Mo1-xCoxS2 nanosheets anchored on carbon fiber paper

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2019.03.161 ◽

2019 ◽

Vol 44 (26) ◽

pp. 13205-13213 ◽

Cited By ~ 8

Author(s):

Jizhuang Wang ◽

Yi He ◽

Qiangbin Yang ◽

Hongjie Li ◽

Zhengfeng Xie ◽

...

Keyword(s):

Carbon Fiber ◽

Water Splitting ◽

Alkaline Media ◽

Bifunctional Electrocatalyst ◽

Overall Water Splitting ◽

Carbon Fiber Paper

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

Catalysts ◽

10.3390/catal11070786 ◽

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.

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