Amorphous carbon modulated-quantum dots NiO for efficient oxygen evolution in anion exchange membrane water electrolyzer

Benjin Jin; Qian Wang; Jani Sainio; Viktoriia A. Saveleva; Hua Jiang; Junjie Shi; Basit Ali; Antti-Jussi Kallio; Simo Huotari; Dage Sundholm; Nana Han; Tanja Kallio

doi:10.1016/j.apcatb.2024.124437

Amorphous carbon modulated-quantum dots NiO for efficient oxygen evolution in anion exchange membrane water electrolyzer

Benjin Jin, Qian Wang, Jani Sainio, Viktoriia A. Saveleva, Hua Jiang, Junjie Shi, Basit Ali, Antti-Jussi Kallio, Simo Huotari, Dage Sundholm, Nana Han, Tanja Kallio

Research output: Contribution to journal › Article › Scientific › peer-review

Abstract

Developing efficient electrocatalysts of elements that are abundant on earth crust is crucial for green hydrogen generation technologies. In particular, the oxygen evolution reaction (OER) under alkaline plays a key role in anion exchange membrane (AEM) electrolyzer to produce green hydrogen but suffers from low kinetic. Herein, nickel oxide quantum dots with highly uniform size distribution on ultrathin amorphous carbon nanosheets (NiO dots/a-carbon) were successfully prepared by a one-step method. Introducing NiO quantum dots onto amorphous carbon modifies the local coordination environment of Ni promoting it into a higher valence state. Benefitting from the promoted Niδ+ (2

Original language	English
Article number	124437
Journal	Applied Catalysis B: Environment and Energy
Volume	358
Number of pages	12
ISSN	0926-3373
DOIs	https://doi.org/10.1016/j.apcatb.2024.124437
Publication status	Published - 5 Dec 2024
MoE publication type	A1 Journal article-refereed

Fields of Science

Nickel oxide quantum dots
Amorphous carbon nanosheets
Oxygen Evolution Reaction
Anion Exchange Membrane Electrolyzer
High-valent Nickel
114 Physical sciences
116 Chemical sciences

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10.1016/j.apcatb.2024.124437Licence: CC BY

1-s2.0-S0926337324007513-mainFinal published version, 10.5 MBLicence: CC BY

Center for X-ray Spectroscopy
Simo Huotari (Manager) & René Bes (Manager)
Department of Physics
Facility/equipment: Research Laboratory
X-ray Laboratory
Simo Huotari (Manager)
Department of Physics
Facility/equipment: Research Laboratory

Cite this

Jin, B., Wang, Q., Sainio, J., Saveleva, V. A., Jiang, H., Shi, J., Ali, B., Kallio, A.-J., Huotari, S., Sundholm, D., Han, N., & Kallio, T. (2024). Amorphous carbon modulated-quantum dots NiO for efficient oxygen evolution in anion exchange membrane water electrolyzer. Applied Catalysis B: Environment and Energy, 358, Article 124437. https://doi.org/10.1016/j.apcatb.2024.124437

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title = "Amorphous carbon modulated-quantum dots NiO for efficient oxygen evolution in anion exchange membrane water electrolyzer",

abstract = "Developing efficient electrocatalysts of elements that are abundant on earth crust is crucial for green hydrogen generation technologies. In particular, the oxygen evolution reaction (OER) under alkaline plays a key role in anion exchange membrane (AEM) electrolyzer to produce green hydrogen but suffers from low kinetic. Herein, nickel oxide quantum dots with highly uniform size distribution on ultrathin amorphous carbon nanosheets (NiO dots/a-carbon) were successfully prepared by a one-step method. Introducing NiO quantum dots onto amorphous carbon modifies the local coordination environment of Ni promoting it into a higher valence state. Benefitting from the promoted Niδ+ (2",

keywords = "Nickel oxide quantum dots, Amorphous carbon nanosheets, Oxygen Evolution Reaction, Anion Exchange Membrane Electrolyzer, High-valent Nickel, 114 Physical sciences, 116 Chemical sciences",

author = "Benjin Jin and Qian Wang and Jani Sainio and Saveleva, {Viktoriia A.} and Hua Jiang and Junjie Shi and Basit Ali and Antti-Jussi Kallio and Simo Huotari and Dage Sundholm and Nana Han and Tanja Kallio",

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doi = "10.1016/j.apcatb.2024.124437",

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journal = "Applied Catalysis B: Environment and Energy",

issn = "0926-3373",

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T1 - Amorphous carbon modulated-quantum dots NiO for efficient oxygen evolution in anion exchange membrane water electrolyzer

AU - Jin, Benjin

AU - Wang, Qian

AU - Sainio, Jani

AU - Saveleva, Viktoriia A.

AU - Jiang, Hua

AU - Shi, Junjie

AU - Ali, Basit

AU - Kallio, Antti-Jussi

AU - Huotari, Simo

AU - Sundholm, Dage

AU - Han, Nana

AU - Kallio, Tanja

PY - 2024/12/5

Y1 - 2024/12/5

N2 - Developing efficient electrocatalysts of elements that are abundant on earth crust is crucial for green hydrogen generation technologies. In particular, the oxygen evolution reaction (OER) under alkaline plays a key role in anion exchange membrane (AEM) electrolyzer to produce green hydrogen but suffers from low kinetic. Herein, nickel oxide quantum dots with highly uniform size distribution on ultrathin amorphous carbon nanosheets (NiO dots/a-carbon) were successfully prepared by a one-step method. Introducing NiO quantum dots onto amorphous carbon modifies the local coordination environment of Ni promoting it into a higher valence state. Benefitting from the promoted Niδ+ (2

AB - Developing efficient electrocatalysts of elements that are abundant on earth crust is crucial for green hydrogen generation technologies. In particular, the oxygen evolution reaction (OER) under alkaline plays a key role in anion exchange membrane (AEM) electrolyzer to produce green hydrogen but suffers from low kinetic. Herein, nickel oxide quantum dots with highly uniform size distribution on ultrathin amorphous carbon nanosheets (NiO dots/a-carbon) were successfully prepared by a one-step method. Introducing NiO quantum dots onto amorphous carbon modifies the local coordination environment of Ni promoting it into a higher valence state. Benefitting from the promoted Niδ+ (2

KW - Nickel oxide quantum dots

KW - Amorphous carbon nanosheets

KW - Oxygen Evolution Reaction

KW - Anion Exchange Membrane Electrolyzer

KW - High-valent Nickel

KW - 114 Physical sciences

KW - 116 Chemical sciences

U2 - 10.1016/j.apcatb.2024.124437

DO - 10.1016/j.apcatb.2024.124437

M3 - Article

SN - 0926-3373

VL - 358

JO - Applied Catalysis B: Environment and Energy

JF - Applied Catalysis B: Environment and Energy

M1 - 124437

ER -

Amorphous carbon modulated-quantum dots NiO for efficient oxygen evolution in anion exchange membrane water electrolyzer

Abstract

Fields of Science

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Equipment

Center for X-ray Spectroscopy

X-ray Laboratory

Cite this