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

2016 ◽  
Vol 4 (9) ◽  
pp. 3204-3209 ◽  
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.

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.

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.

scholarly journals MOF-templated cobalt nanoparticles embedded in nitrogen-doped porous carbon: a bifunctional electrocatalyst for overall water splitting

2019 ◽  
Vol 1 (6) ◽  
pp. 2293-2302 ◽  
Author(s):  
Karabi Nath ◽  
Kousik Bhunia ◽  
Debabrata Pradhan ◽  
Kumar Biradha
Keyword(s):  
Water Splitting ◽  
Porous Carbon ◽  
Cobalt Nanoparticles ◽  
One Pot ◽  
Bifunctional Electrocatalyst ◽  
Nitrogen Doped ◽  
Overall Water Splitting

A carboxylate based 3D-anionic MOF-derived bifunctional electrocatalyst was fabricated for overall water splitting through a one-pot carbonization technique.

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

2017 ◽  
Vol 5 (30) ◽  
pp. 15901-15912 ◽  
Author(s):  
Yun Xiao ◽  
Pengfang Zhang ◽  
Xin Zhang ◽  
Xiaoping Dai ◽  
Yangde Ma ◽  
...  
Keyword(s):  
Thin Film ◽  
Water Splitting ◽  
Alkaline Media ◽  
Bifunctional Electrocatalyst ◽  
Overall Water Splitting ◽  
Excellent Activity

Bimetallic thin film NiCo–NiCoO2@NC exhibits a synergy of two active metals – Ni and Co, achieving excellent activity for both the HER and OER.

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.

AgCuO2 as a novel bifunctional electrocatalyst for overall water splitting in alkaline media

2019 ◽  
Vol 43 (11) ◽  
pp. 4633-4639 ◽  
Author(s):  
Saeideh Kamali Moghaddam ◽  
Seyed Masoud Seyed Ahmadian ◽  
Behzad Haghighi
Keyword(s):  
Water Splitting ◽  
Alkaline Media ◽  
Onset Potential ◽  
Bifunctional Electrocatalyst ◽  
Overall Water Splitting

AgCuO2 behaves as an efficient electrocatalyst with a low onset potential of about 29 mV for the HER in 1.0 M KOH.

scholarly journals A structurally versatile nickel phosphite acting as a robust bifunctional electrocatalyst for overall water splitting

2018 ◽  
Vol 11 (5) ◽  
pp. 1287-1298 ◽  
Author(s):  
Prashanth W. Menezes ◽  
Chakadola Panda ◽  
Stefan Loos ◽  
Florian Bunschei-Bruns ◽  
Carsten Walter ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Bifunctional Electrocatalyst ◽  
Overall Water Splitting

The mechanistically distinct and synergistic role of phosphite anions in hydrogen evolution and nickel cations in oxygen evolution have been uncovered for active and durable overall water splitting catalysis in nickel phosphite.

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