Synthesis of ZnO-CuO and ZnO-Co3O4 Materials with Three-Dimensionally Ordered Macroporous Structure and Its H2S Removal Performance at Low-Temperature

H2S is a common but hazardous impurity in syngas, biogas, or natural gas. For some advanced power generation technologies, such as integrated gasification combined cycle (IGCC), solid oxide fuel cells, H2S content needs to be reduced to an acceptable lev...

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Autores principales:	Tao Yu, Zhuo Chen, Yundong Wang, Jianhong Xu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	porous materials H<sub>2</sub>S removal low-temperature desulfurization metal oxide regeneration ability Chemical technology TP1-1185 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/813ae2ac58ac40499d9b11af33b125bb
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spelling	oai:doaj.org-article:813ae2ac58ac40499d9b11af33b125bb2021-11-25T18:50:29ZSynthesis of ZnO-CuO and ZnO-Co<sub>3</sub>O<sub>4</sub> Materials with Three-Dimensionally Ordered Macroporous Structure and Its H<sub>2</sub>S Removal Performance at Low-Temperature10.3390/pr91119252227-9717https://doaj.org/article/813ae2ac58ac40499d9b11af33b125bb2021-10-01T00:00:00Zhttps://www.mdpi.com/2227-9717/9/11/1925https://doaj.org/toc/2227-9717H<sub>2</sub>S is a common but hazardous impurity in syngas, biogas, or natural gas. For some advanced power generation technologies, such as integrated gasification combined cycle (IGCC), solid oxide fuel cells, H<sub>2</sub>S content needs to be reduced to an acceptable level. In this work, a series of highly porous Zn-Cu and Zn-Co composites with three-dimensionally ordered macropores (3DOM) structure were synthesized via the colloidal crystal template method and used to remove H<sub>2</sub>S at 150 °C and one atm. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), nitrogen adsorption studies, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) were carried out to analyze the fresh and spent adsorbents. The results show that all the adsorbents possess well-ordered macropores, a large surface area, and a highly dispersed active phase. The relative content of Zn and (Cu or Co) has a significant influence on the desulfurization performance of adsorbents. The addition of CuO significantly increases the sulfur capacity and 3DOM-Zn<sub>0.5</sub>Cu<sub>0.5</sub> shows the largest sulfur capacity of all the adsorbents, reaching up to 102.5 mg/g. The multiple adsorption/regeneration cycles of 3DOM-Zn<sub>0.5</sub>Cu<sub>0.5</sub> and 3DOM-Zn<sub>0.5</sub>Co<sub>0.5</sub> indicate that the as-prepared adsorbents are stable, and the sulfur capacity can still exceed 65% of the fresh adsorbents after six cycles.Tao YuZhuo ChenYundong WangJianhong XuMDPI AGarticleporous materialsH<sub>2</sub>S removallow-temperature desulfurizationmetal oxideregeneration abilityChemical technologyTP1-1185ChemistryQD1-999ENProcesses, Vol 9, Iss 1925, p 1925 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	porous materials H<sub>2</sub>S removal low-temperature desulfurization metal oxide regeneration ability Chemical technology TP1-1185 Chemistry QD1-999
spellingShingle	porous materials H<sub>2</sub>S removal low-temperature desulfurization metal oxide regeneration ability Chemical technology TP1-1185 Chemistry QD1-999 Tao Yu Zhuo Chen Yundong Wang Jianhong Xu Synthesis of ZnO-CuO and ZnO-Co<sub>3</sub>O<sub>4</sub> Materials with Three-Dimensionally Ordered Macroporous Structure and Its H<sub>2</sub>S Removal Performance at Low-Temperature
description	H<sub>2</sub>S is a common but hazardous impurity in syngas, biogas, or natural gas. For some advanced power generation technologies, such as integrated gasification combined cycle (IGCC), solid oxide fuel cells, H<sub>2</sub>S content needs to be reduced to an acceptable level. In this work, a series of highly porous Zn-Cu and Zn-Co composites with three-dimensionally ordered macropores (3DOM) structure were synthesized via the colloidal crystal template method and used to remove H<sub>2</sub>S at 150 °C and one atm. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), nitrogen adsorption studies, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) were carried out to analyze the fresh and spent adsorbents. The results show that all the adsorbents possess well-ordered macropores, a large surface area, and a highly dispersed active phase. The relative content of Zn and (Cu or Co) has a significant influence on the desulfurization performance of adsorbents. The addition of CuO significantly increases the sulfur capacity and 3DOM-Zn<sub>0.5</sub>Cu<sub>0.5</sub> shows the largest sulfur capacity of all the adsorbents, reaching up to 102.5 mg/g. The multiple adsorption/regeneration cycles of 3DOM-Zn<sub>0.5</sub>Cu<sub>0.5</sub> and 3DOM-Zn<sub>0.5</sub>Co<sub>0.5</sub> indicate that the as-prepared adsorbents are stable, and the sulfur capacity can still exceed 65% of the fresh adsorbents after six cycles.
format	article
author	Tao Yu Zhuo Chen Yundong Wang Jianhong Xu
author_facet	Tao Yu Zhuo Chen Yundong Wang Jianhong Xu
author_sort	Tao Yu
title	Synthesis of ZnO-CuO and ZnO-Co<sub>3</sub>O<sub>4</sub> Materials with Three-Dimensionally Ordered Macroporous Structure and Its H<sub>2</sub>S Removal Performance at Low-Temperature
title_short	Synthesis of ZnO-CuO and ZnO-Co<sub>3</sub>O<sub>4</sub> Materials with Three-Dimensionally Ordered Macroporous Structure and Its H<sub>2</sub>S Removal Performance at Low-Temperature
title_full	Synthesis of ZnO-CuO and ZnO-Co<sub>3</sub>O<sub>4</sub> Materials with Three-Dimensionally Ordered Macroporous Structure and Its H<sub>2</sub>S Removal Performance at Low-Temperature
title_fullStr	Synthesis of ZnO-CuO and ZnO-Co<sub>3</sub>O<sub>4</sub> Materials with Three-Dimensionally Ordered Macroporous Structure and Its H<sub>2</sub>S Removal Performance at Low-Temperature
title_full_unstemmed	Synthesis of ZnO-CuO and ZnO-Co<sub>3</sub>O<sub>4</sub> Materials with Three-Dimensionally Ordered Macroporous Structure and Its H<sub>2</sub>S Removal Performance at Low-Temperature
title_sort	synthesis of zno-cuo and zno-co<sub>3</sub>o<sub>4</sub> materials with three-dimensionally ordered macroporous structure and its h<sub>2</sub>s removal performance at low-temperature
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/813ae2ac58ac40499d9b11af33b125bb
work_keys_str_mv	AT taoyu synthesisofznocuoandznocosub3subosub4submaterialswiththreedimensionallyorderedmacroporousstructureanditshsub2subsremovalperformanceatlowtemperature AT zhuochen synthesisofznocuoandznocosub3subosub4submaterialswiththreedimensionallyorderedmacroporousstructureanditshsub2subsremovalperformanceatlowtemperature AT yundongwang synthesisofznocuoandznocosub3subosub4submaterialswiththreedimensionallyorderedmacroporousstructureanditshsub2subsremovalperformanceatlowtemperature AT jianhongxu synthesisofznocuoandznocosub3subosub4submaterialswiththreedimensionallyorderedmacroporousstructureanditshsub2subsremovalperformanceatlowtemperature
_version_	1718410655795511296

Synthesis of ZnO-CuO and ZnO-Co<sub>3</sub>O<sub>4</sub> Materials with Three-Dimensionally Ordered Macroporous Structure and Its H<sub>2</sub>S Removal Performance at Low-Temperature

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