Results 1 to 10 of about 8,414 (162)

Nickel-Based Metal-Organic Frameworks as Electrocatalysts for the Oxygen Evolution Reaction (OER). [PDF]

Molecules, 2022
The exploration of earth-abundant electrocatalysts with high performance for the oxygen evolution reaction (OER) is eminently desirable and remains a significant challenge. The composite of the metal-organic framework (MOF) Ni10Co-BTC (BTC = 1,3,5-benzenetricarboxylate) and the highly conductive carbon material ketjenblack (KB) could be easily obtained
Sondermann L, Jiang W, Shviro M, Spieß A, Woschko D, Rademacher L, Janiak C.   +6 more
europepmc   +7 more sources

Understanding the Effects of Ultrasound (408 kHz) on the Hydrogen Evolution Reaction (HER) and the Oxygen Evolution Reaction (OER) on Raney-Ni in Alkaline Media. [PDF]

Ultrason Sonochem, 2022
The hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) occurring at the Raney-Ni mesh electrode in 30 wt.-% aqueous KOH solution were studied in the absence (silent) and presence of ultrasound (408 kHz, ∼54 W, 100% acoustic amplitude) at different electrolyte temperatures (T = 25, 40 and 60 °C). Linear sweep voltammetry (LSV) and
Foroughi F, Immanuel Bernäcker C, Röntzsch L, Pollet BG.   +3 more
europepmc   +5 more sources

Influence of Chiral Compounds on the Oxygen Evolution Reaction (OER) in the Water Splitting Process. [PDF]

Molecules, 2020
Results are presented concerning the influence on the water splitting process of enantiopure tartaric acid present in bulk solution. Stainless steel and electrodeposited nickel are used as working electrode (WE) surface. The latter is obtained by electrodeposition on the two poles of a magnet.
Gazzotti M, Stefani A, Bonechi M, Giurlani W, Innocenti M, Fontanesi C.   +5 more
europepmc   +7 more sources

Recent Advances of Transition Metal Basic Salts for Electrocatalytic Oxygen Evolution Reaction and Overall Water Electrolysis

Nano-Micro Letters, 2023
Highlights We summarize the recent advances of transition metal basic salts and their application in oxygen evolution reaction (OER) and further overall water splitting. The structure evolution of transition metal basic salts during OER and the impact of
Bingrong Guo, Yani Ding, Haohao Huo, Xinxin Wen, Xiaoqian Ren, Ping Xu, Siwei Li   +6 more
doaj   +2 more sources

Electrocatalysis for the Oxygen Evolution Reaction in Acidic Media: Progress and Challenges

Applied Sciences, 2021
The oxygen evolution reaction (OER) is the efficiency-determining half-reaction process of high-demand, electricity-driven water splitting due to its sluggish four-electron transfer reaction.
Hui-Ying Qu, Xiwen He, Yibo Wang, Shuai Hou   +3 more
doaj   +1 more source

Oxygen evolution reaction (OER) mechanism under alkaline and acidic conditions [PDF]

Journal of Physics: Energy, 2021
Abstract Density functional theory (DFT) simulations of the oxygen evolution reaction (OER) are considered essential for understanding the limitations of water splitting. Most DFT calculations of the OER use an acidic reaction mechanism and the standard hydrogen electrode (SHE) as reference electrode.
Liang, Q., Brocks, G., Bieberle-Hütter, A.   +2 more
openaire   +2 more sources

Facet Engineering of Advanced Electrocatalysts Toward Hydrogen/Oxygen Evolution Reactions

Nano-Micro Letters, 2023
Highlights The crystal facets featured with facet-dependent physical and chemical properties can exhibit varied electrocatalytic activity toward hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) attributed to their anisotropy.
Changshui Wang, Qian Zhang, Bing Yan, Bo You, Jiaojiao Zheng, Li Feng, Chunmei Zhang, Shaohua Jiang, Wei Chen, Shuijian He   +9 more
doaj   +1 more source

Probing the (de)activation of Raney nickel–iron anodes during alkaline water electrolysis by accelerated deactivation testing

Electrochemistry Communications, 2023
We investigated the (de)activation of Raney nickel–iron anodes in various oxygen evolution reaction (OER) environments using accelerated deactivation testing (ADT) under the conditions of on/off voltage control (ADT1), constant current density (ADT2 ...
Ji-Eun Kim, Tae-Hyun Kim, Chu-Sik Park, Kwangjin Jung, Jaekyung Yoon, Ki-Bong Lee, Kyoung-Soo Kang   +6 more
doaj   +1 more source

Ternary boron-, phosphorus- and oxygen-doped amorphous nickel nanoalloys for enhanced activity towards the oxygen evolution reaction

Electrochemistry Communications, 2020
The oxygen evolution reaction (OER) is a key reaction in hydrogen production through water splitting and in fuel cells. Nickel nanoalloys are potential low-cost OER electrocatalysts, but their catalytic activity and stability need to be improved.
Xuehui Liu, Jian Wu, Xingjia Guo
doaj   +1 more source

Peat-derived carbon-based non-platinum group metal type catalyst for oxygen reduction and evolution reactions

Electrochemistry Communications, 2020
For the first time, a novel peat-derived carbon (PDC) was used to synthesize an active non-platinum group metal type catalyst for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER).
P. Teppor, R. Jäger, M. Paalo, R. Palm, O. Volobujeva, E. Härk, Z. Kochovski, T. Romann, R. Härmas, J. Aruväli, A. Kikas, E. Lust   +11 more
doaj   +1 more source