Porous and Partially Dehydrogenated Fe2+-Containing Iron Oxyhydroxide Nanosheets for Efficient Electrochemical Nitrogen Reduction Reaction (ENRR)

Jia, Lulu1,2; Xue, Hairong1; Xian, Fang1,2; Sugahara, Yoshiyuki2,3; Sakai, Nobuyuki1; Nan, Jingbo4; Yamauchi, Yusuke1,3,5,6; Sasaki, Takayoshi1; Ma, Renzhi1,2

2023-06-01

10.1002/smll.202303221

SMALL   影响因子和分区

1613-6810

1613-6829

The design and development of efficient catalysts for electrochemical nitrogen reduction reaction (ENRR) under ambient conditions are critical for the alternative ammonia (NH3) synthesis from N-2 and H2O, wherein iron-based electrocatalysts exhibit outstanding NH3 formation rate and Faradaic efficiency (FE). Here, the synthesis of porous and positively charged iron oxyhydroxide nanosheets by using layered ferrous hydroxide as a starting precursor, which undergoes topochemical oxidation, partial dehydrogenated reaction, and final delamination, is reported. As the electrocatalyst of ENRR, the obtained nanosheets with a monolayer thickness and 10-nm mesopores display exceptional NH3 yield rate (28.5 mu g h(-1) mg(cat.)(-1)) and FE (13.2%) at a potential of -0.4 V versus RHE in a phosphate buffered saline (PBS) electrolyte. The values are much higher than those of the undelaminated bulk iron oxyhydroxide. The larger specific surface area and positive charge of the nanosheets are beneficial for providing more exposed reactive sites as well as retarding hydrogen evolution reaction. This study highlights the rational control on the electronic structure and morphology of porous iron oxyhydroxide nanosheets, expanding the scope of developing non-precious iron-based highly efficient ENRR electrocatalysts.

electrochemical nitrogen reduction reaction iron oxyhydroxide nanosheets

SCI ; EI

英语

其他

JSPS KAKENHI["22K18956","JPMJER2003"] ; null[22H01916]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:001009681400001

WILEY-V C H VERLAG GMBH

20232514264058

Ammonia ; Dehydrogenation ; Electrolysis ; Electrolytes ; Electronic structure ; Iron compounds ; Morphology ; Nanosheets

Electric Batteries and Fuel Cells:702 ; Nanotechnology:761 ; Electrochemistry:801.4.1 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Solid State Physics:933 ; Materials Science:951

Web of Science

1.Natl Inst Mat Sci NIMS, Res Ctr Mat Nanoarchitecton MANA, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan
2.Waseda Univ, Grad Sch Adv Sci & Engn, 3-4-1 Okubo,Shinjuku Ku, Tokyo 1698555, Japan
3.Waseda Univ, Kagami Mem Res Inst Mat Sci & Technol, 2-8-26 Nishi waseda,Shinjuku Ku, Tokyo 1690051, Japan
4.Southern Univ Sci & Technol, Dept Ocean Sci & Engn, Shenzhen 518055, Peoples R China
5.Univ Queensland, Australian Inst Bioengn & Nanotechnol AIBN, Brisbane, Qld 4072, Australia
6.Univ Queensland, Sch Chem Engn, Brisbane, Qld 4072, Australia

Jia, Lulu,Xue, Hairong,Xian, Fang,et al. Porous and Partially Dehydrogenated Fe2+-Containing Iron Oxyhydroxide Nanosheets for Efficient Electrochemical Nitrogen Reduction Reaction (ENRR)[J]. SMALL,2023,19.

Jia, Lulu.,Xue, Hairong.,Xian, Fang.,Sugahara, Yoshiyuki.,Sakai, Nobuyuki.,...&Ma, Renzhi.(2023).Porous and Partially Dehydrogenated Fe2+-Containing Iron Oxyhydroxide Nanosheets for Efficient Electrochemical Nitrogen Reduction Reaction (ENRR).SMALL,19.

Jia, Lulu,et al."Porous and Partially Dehydrogenated Fe2+-Containing Iron Oxyhydroxide Nanosheets for Efficient Electrochemical Nitrogen Reduction Reaction (ENRR)".SMALL 19(2023).