Nanostructured manganese oxide on carbon for water oxidation: New findings and challenges

被引：18
|
作者：
Salimi, Saeideh [1 ]
Zand, Zahra [1 ]
Holynska, Malgorzata [2 ,3 ]
Allakhverdiev, Suleyman I. [4 ,5 ]
Najafpour, Mohammad Mahdi [1 ,6 ,7 ]
机构：
[1] Inst Adv Studies Basic Sci IASBS, Dept Chem, Zanjan 4513766731, Iran
[2] Philipps Univ Marburg, Fachbereich Chem, Hans Meerwein Str, D-35032 Marburg, Germany
[3] Philipps Univ Marburg, Wissenschaftl Zent Mat Wissensch WZMW, Hans Meerwein Str, D-35032 Marburg, Germany
[4] Russian Acad Sci, KA Timiryazev Inst Plant Physiol, Bot Skaya St 35, Moscow 127276, Russia
[5] Bahcesehir Univ, Fac Engn & Nat Sci, Istanbul, Turkey
[6] Inst Adv Studies Basic Sci IASBS, Ctr Climate Change & Global Warming, Zanjan, Iran
[7] Inst Adv Studies Basic Sci IASBS, Res Ctr Basic Sci Z Modern Technol RBST, 4513766731, Zanjan, Iran
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2022年 / 47卷 / 97期
基金：
俄罗斯科学基金会;
关键词：
Artificial photosynthesis; Hydrogen; Manganese oxide; Mesoporous carbon; Oxygen; Water-oxidation reaction; OXIDIZING CATALYSTS; HYDROGEN-PRODUCTION; OXYGEN EVOLUTION; REDOX DEPOSITION; PHOTOSYSTEM-II; CALCIUM OXIDE; EFFICIENT; PHOTOSYNTHESIS; MNO2; ELECTROCATALYSTS;
D O I：
10.1016/j.ijhydene.2022.09.179
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Water-oxidation reaction (WOR) is a sluggish reaction for hydrogen production through water splitting. Herein, Mn oxide/mesoporous carbon (MC) is introduced as an active WOR catalyst under neutral conditions. The composite was synthesized through the reaction of permanganate and MC using a simple and low-cost procedure and characterized by scanning electron microscopy, in situ visible spectroscopy, energy-dispersive spectros-copy, (high-resolution) transmission electron microscopy, and X-ray diffraction. Then, the WOR activity of this composite was investigated under neutral conditions. The experiment shows that nanosized Mn oxide/MC is a promising catalyst for water-splitting systems. The overpotentials for the onset (based on the Tafel plot) and 1.0 mA of WOR are 700 and 940 mV, respectively. Based on the LSV, the Tafel slope is 378.6 mV per decade.(c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：40943 / 40951
页数：9
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