Cadmium Hydroxide: A Missing Non-Noble Metal Hydroxide Electrocatalyst for the Oxygen Evolution Reaction

2020 ◽  
Vol 3 (2) ◽  
pp. 1305-1310 ◽  
Author(s):  
Xiang Chen ◽  
Haonan Wang ◽  
Ruru Meng ◽  
Bin Xia ◽  
Zuju Ma
2021 ◽  
Author(s):  
Xiaoping Ma ◽  
Lili Deng ◽  
Manting Lu ◽  
Yi He ◽  
Shuai Zou ◽  
...  

Abstract Although researches on non-noble metal electrocatalysts have been made some progress recently, their performance in proton exchange membrane water electrolyzer (PEMWE) is still incomparable to that of noble-metal-based catalysts. Therefore, it is a more practical way to improve the utilization of precious metals in electrocatalysts for oxygen evolution reaction (OER) in the acidic medium. Herein, nanostructured IrCo@IrCoOx core-shell electrocatalysts composed of IrCo alloy core and IrCoOx shell were synthesized through a simple colloidally synthesis and calcination method. As expected, the hybrid IrCo-200 NPs with petal-like morphology show the best OER activities in acidic electrolytes. They deliver lower overpotential and better electrocatalytic kinetics than pristine IrCo alloy and commercial Ir/C, reaching a low overpotential (j = 10 mA/cm2) of 259 mV (vs. RHE) and a Tafel slope of 59 mV dec−1. The IrCo-200 NPs displayed robust durability with life time of about 55 h in acidic solution under a large current density of 50 mA/cm2. The enhanced electrocatalytic activity may be associated with the unique metal/amorphous metal oxide core-shell heterostructure, allowing the improved charge transferability. Moreover, the *OH-rich amorphous shell functions as the active site for OER and prevents the further dissolution of the metallic core and thus ensures high stability.


2019 ◽  
Vol 48 (12) ◽  
pp. 3181-3192 ◽  
Author(s):  
Qiurong Shi ◽  
Chengzhou Zhu ◽  
Dan Du ◽  
Yuehe Lin

The oxygen evolution reaction (OER) is a kinetically sluggish anodic reaction that requires rationalized compositions and structures for achieving highly efficient and reliable noble metal-based electrocatalysts in acidic electrolyte.


2020 ◽  
Vol 30 (15) ◽  
pp. 1910274 ◽  
Author(s):  
Zhi‐Peng Wu ◽  
Xue Feng Lu ◽  
Shuang‐Quan Zang ◽  
Xiong Wen (David) Lou

Langmuir ◽  
2016 ◽  
Vol 32 (49) ◽  
pp. 13046-13053 ◽  
Author(s):  
Song Ling Wang ◽  
Yan Lin Mak ◽  
Shijie Wang ◽  
Jianwei Chai ◽  
Feng Pan ◽  
...  

2019 ◽  
Vol 7 (40) ◽  
pp. 23091-23097 ◽  
Author(s):  
Zhe Xue ◽  
Xinyu Zhang ◽  
Jiaqian Qin ◽  
Riping Liu

The development of high-activity and earth-abundant non-noble metal electrocatalysts for the oxygen evolution reaction (OER) is highly desirable but is an ongoing challenge facing us now.


2017 ◽  
Vol 5 (33) ◽  
pp. 17609-17618 ◽  
Author(s):  
D. Ruchira Liyanage ◽  
Da Li ◽  
Quintin B. Cheek ◽  
Habib Baydoun ◽  
Stephanie L. Brock

Incorporation of Ru into Ni2P nanoparticles moderates the redox behavior of Ni and lowers the kinetic barrier for water oxidation.


1972 ◽  
Vol 17 (12) ◽  
pp. 2249-2265 ◽  
Author(s):  
S. Iseki ◽  
K. Ohashi ◽  
S. Nagaura

2021 ◽  
Author(s):  
Jiaruo Tang ◽  
Xiaoli Jiang ◽  
Lin Tang ◽  
Yao Li ◽  
Qiaoji Zheng ◽  
...  

Developing state-of-the-art non-noble metal catalysts for the oxygen evolution reaction holds a key to the production of electrolytic hydrogen.


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