Yi Xiao, Wenxue Shang, Jiyuan Feng, Airu Yu, Lu Chen, Liqiu Zhang, Hongxia Shen, Qiong Cheng, Lichun Liu, Song Bai
{"title":"毫秒级电沉积铂原子掺杂氧化钼作为析氢反应的高效电催化剂","authors":"Yi Xiao, Wenxue Shang, Jiyuan Feng, Airu Yu, Lu Chen, Liqiu Zhang, Hongxia Shen, Qiong Cheng, Lichun Liu, Song Bai","doi":"10.1007/s11706-022-0606-8","DOIUrl":null,"url":null,"abstract":"<div><p>We present a straightforward method for one-pot electrodeposition of platinum atoms-doped molybdenum oxide (Pt·MoO<sub>3−<i>x</i></sub>) films and show their superior electrocatalytic activity in the hydrogen evolution reaction (HER). A ∼15-nm-thick Pt·MoO<sub>3−<i>x</i></sub> film was prepared by one-pot electrodeposition at −0.8 V for 1 ms. Due to considerably different solute concentrations, the content of Pt atoms in the electrode-posited composite electrocatalyst is low. No Pt crystals or islands were observed on the flat Pt·MoO<sub>3−<i>x</i></sub> films, indicating that Pt atoms were homogeneously dispersed within the MoO<sub>3−<i>x</i></sub> thin film. The catalytic performance and physicochemical features of Pt·MoO<sub>3−<i>x</i></sub> as a HER electrocatalyst were characterized. The results showed that our Pt·MoO<sub>3−<i>x</i></sub> film exhibits 23- and 11-times higher current density than Pt and MoO<sub>3−<i>x</i></sub> electrodeposited individually under the same conditions, respectively. It was found that the dramatic enhancement in the HER performance was principally due to the abundant oxygen defects. The use of the developed one-pot electrodeposition and doping method can potentially be extended to various catalytically active metal oxides or hydroxides for enhanced performance in various energy storage and conversion applications.</p></div>","PeriodicalId":572,"journal":{"name":"Frontiers of Materials Science","volume":"16 3","pages":""},"PeriodicalIF":2.5000,"publicationDate":"2022-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Millisecond-timescale electrodeposition of platinum atom-doped molybdenum oxide as an efficient electrocatalyst for hydrogen evolution reaction\",\"authors\":\"Yi Xiao, Wenxue Shang, Jiyuan Feng, Airu Yu, Lu Chen, Liqiu Zhang, Hongxia Shen, Qiong Cheng, Lichun Liu, Song Bai\",\"doi\":\"10.1007/s11706-022-0606-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>We present a straightforward method for one-pot electrodeposition of platinum atoms-doped molybdenum oxide (Pt·MoO<sub>3−<i>x</i></sub>) films and show their superior electrocatalytic activity in the hydrogen evolution reaction (HER). A ∼15-nm-thick Pt·MoO<sub>3−<i>x</i></sub> film was prepared by one-pot electrodeposition at −0.8 V for 1 ms. Due to considerably different solute concentrations, the content of Pt atoms in the electrode-posited composite electrocatalyst is low. No Pt crystals or islands were observed on the flat Pt·MoO<sub>3−<i>x</i></sub> films, indicating that Pt atoms were homogeneously dispersed within the MoO<sub>3−<i>x</i></sub> thin film. The catalytic performance and physicochemical features of Pt·MoO<sub>3−<i>x</i></sub> as a HER electrocatalyst were characterized. The results showed that our Pt·MoO<sub>3−<i>x</i></sub> film exhibits 23- and 11-times higher current density than Pt and MoO<sub>3−<i>x</i></sub> electrodeposited individually under the same conditions, respectively. It was found that the dramatic enhancement in the HER performance was principally due to the abundant oxygen defects. The use of the developed one-pot electrodeposition and doping method can potentially be extended to various catalytically active metal oxides or hydroxides for enhanced performance in various energy storage and conversion applications.</p></div>\",\"PeriodicalId\":572,\"journal\":{\"name\":\"Frontiers of Materials Science\",\"volume\":\"16 3\",\"pages\":\"\"},\"PeriodicalIF\":2.5000,\"publicationDate\":\"2022-09-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Frontiers of Materials Science\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11706-022-0606-8\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Frontiers of Materials Science","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11706-022-0606-8","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Millisecond-timescale electrodeposition of platinum atom-doped molybdenum oxide as an efficient electrocatalyst for hydrogen evolution reaction
We present a straightforward method for one-pot electrodeposition of platinum atoms-doped molybdenum oxide (Pt·MoO3−x) films and show their superior electrocatalytic activity in the hydrogen evolution reaction (HER). A ∼15-nm-thick Pt·MoO3−x film was prepared by one-pot electrodeposition at −0.8 V for 1 ms. Due to considerably different solute concentrations, the content of Pt atoms in the electrode-posited composite electrocatalyst is low. No Pt crystals or islands were observed on the flat Pt·MoO3−x films, indicating that Pt atoms were homogeneously dispersed within the MoO3−x thin film. The catalytic performance and physicochemical features of Pt·MoO3−x as a HER electrocatalyst were characterized. The results showed that our Pt·MoO3−x film exhibits 23- and 11-times higher current density than Pt and MoO3−x electrodeposited individually under the same conditions, respectively. It was found that the dramatic enhancement in the HER performance was principally due to the abundant oxygen defects. The use of the developed one-pot electrodeposition and doping method can potentially be extended to various catalytically active metal oxides or hydroxides for enhanced performance in various energy storage and conversion applications.
期刊介绍：
Frontiers of Materials Science is a peer-reviewed international journal that publishes high quality reviews/mini-reviews, full-length research papers, and short Communications recording the latest pioneering studies on all aspects of materials science. It aims at providing a forum to promote communication and exchange between scientists in the worldwide materials science community.
The subjects are seen from international and interdisciplinary perspectives covering areas including (but not limited to):
Biomaterials including biomimetics and biomineralization;
Nano materials;
Polymers and composites;
New metallic materials;
Advanced ceramics;
Materials modeling and computation;
Frontier materials synthesis and characterization;
Novel methods for materials manufacturing;
Materials performance;
Materials applications in energy, information and biotechnology.
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