Earth‐Abundant Transition‐Metal‐Based Bifunctional Electrocatalysts for Overall Water Splitting in Alkaline Media

2020 ◽  
Vol 26 (29) ◽  
pp. 6423-6436 ◽  
Author(s):  
Jianmin Yu ◽  
Thi Anh Le ◽  
Ngoc Quang Tran ◽  
Hyoyoung Lee
Author(s):  
Min Wang ◽  
Li Zhang ◽  
Yijia He ◽  
Hongwei Zhu

This review summarizes recent advances relating to transition metal sulfide (TMS)-based bifunctional electrocatalysts, providing guidelines for the design and fabrication of TMS-based catalysts for practical application in water electrolysis.


2020 ◽  
Vol 8 (28) ◽  
pp. 14234-14242 ◽  
Author(s):  
Liang Yan ◽  
Bing Zhang ◽  
Shangyou Wu ◽  
Jianlin Yu

Exploring highly efficient, stable, and non-noble-metal bifunctional electrocatalysts for overall water splitting is greatly desired but still remains an ongoing challenge.


2020 ◽  
Vol 8 (27) ◽  
pp. 13795-13805 ◽  
Author(s):  
Ranjith Bose ◽  
Vasanth Rajendiran Jothi ◽  
K. Karuppasamy ◽  
Akram Alfantazi ◽  
Sung Chul Yi

Designing highly active bifunctional electrocatalysts from Earth-abundant elements has great prospects for substituting precious-metal based catalysts in energy conversion processes, such as water splitting.


Catalysts ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 786
Author(s):  
Song-Jeng Huang ◽  
Adil Muneeb ◽  
Palani Sabhapathy ◽  
Khasim Saheb Bayikadi ◽  
Tahir Murtaza ◽  
...  

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.


Author(s):  
Mengzhao Liu ◽  
Zhe Sun ◽  
Shiyan Li ◽  
Xiaowa Nie ◽  
Yuefeng Liu ◽  
...  

The development of efficient and stable non-noble metal bifunctional electrocatalysts for overall water splitting in acidic and alkaline media is highly desirable for industrial water electrolysis, but remains a profound...


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