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基于铁基金属有机框架衍生的P-FeO/Fe@C用于pH通用型水分解的界面配位工程

Interface Coordination Engineering of P-FeO/Fe@C Derived from an Iron-Based Metal Organic Framework for pH-Universal Water Splitting.

作者信息

Fan Minmin, Li Peixiao, Liu Baibai, Gong Yun, Luo Chengling, Yang Kun, Liu Xinjuan, Fan Jinchen, Xue Yuhua

机构信息

School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China.

Beijing Smartchip Microelectronics Technology Company Limited, Beijing 102200, China.

出版信息

Nanomaterials (Basel). 2023 Jun 22;13(13):1909. doi: 10.3390/nano13131909.

DOI:10.3390/nano13131909
PMID:37446424
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10343528/
Abstract

Developing electrocatalysts with high energy conversion efficiency is urgently needed. In this work, P-FeO/Fe@C electrodes with rich under-coordinated Fe atom interfaces are constructed for efficient pH-universal water splitting. The introduction of under-coordinated Fe atoms into the P-FeO/Fe@C interface can increase the local charge density and polarize the 3d orbital lone electrons, which promotes water adsorption and activation to release more H, thus elevating electrocatalytic activity. As a donor-like catalyst, P-FeO/Fe@C displays excellent electrocatalytic performance with overpotentials of 160 mV and 214 mV in acidic and alkaline electrolytes at 10 mA cm, in addition to pH-universal long-term stability.

摘要

迫切需要开发具有高能量转换效率的电催化剂。在这项工作中，构建了具有丰富低配位铁原子界面的P-FeO/Fe@C电极用于高效的全pH值析水反应。将低配位铁原子引入P-FeO/Fe@C界面可增加局部电荷密度并使3d轨道孤电子极化，从而促进水的吸附和活化以释放更多的H，进而提高电催化活性。作为类施主型催化剂，P-FeO/Fe@C在10 mA cm下于酸性和碱性电解质中分别具有160 mV和214 mV的过电位，展现出优异的电催化性能，此外还具有全pH值的长期稳定性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/025f/10343528/0d5a30d926dc/nanomaterials-13-01909-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/025f/10343528/ae4f5b09a2f1/nanomaterials-13-01909-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/025f/10343528/bf9612996569/nanomaterials-13-01909-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/025f/10343528/d9859cb1185a/nanomaterials-13-01909-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/025f/10343528/b87b7b3a918e/nanomaterials-13-01909-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/025f/10343528/649d6ccfa2b3/nanomaterials-13-01909-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/025f/10343528/3354efe3a3eb/nanomaterials-13-01909-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/025f/10343528/f8680b706f2b/nanomaterials-13-01909-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/025f/10343528/0d5a30d926dc/nanomaterials-13-01909-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/025f/10343528/ae4f5b09a2f1/nanomaterials-13-01909-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/025f/10343528/bf9612996569/nanomaterials-13-01909-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/025f/10343528/d9859cb1185a/nanomaterials-13-01909-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/025f/10343528/b87b7b3a918e/nanomaterials-13-01909-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/025f/10343528/649d6ccfa2b3/nanomaterials-13-01909-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/025f/10343528/3354efe3a3eb/nanomaterials-13-01909-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/025f/10343528/f8680b706f2b/nanomaterials-13-01909-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/025f/10343528/0d5a30d926dc/nanomaterials-13-01909-g008.jpg

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