Improved absorption of phosphates through interface junctions and photothermal–energy–storage capability of Ca(OH)2–[Co3O4–Co3(PO4)2]

Cheng Hui Liu; Rui Min Hao; Ji Peng; Wen Xi Liu; Xuan An Ji; Lin Zhu; Zhi Bin Xu; Qin Pei Wu

doi:10.1016/j.ces.2024.120993

Improved absorption of phosphates through interface junctions and photothermal–energy–storage capability of Ca(OH)₂–[Co₃O₄–Co₃(PO₄)₂]

Cheng Hui Liu, Rui Min Hao, Ji Peng, Wen Xi Liu, Xuan An Ji, Lin Zhu, Zhi Bin Xu, Qin Pei Wu^*

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

Strong absorption in the full solar spectrum is required for efficient usage of solar energy. Near-infrared (NIR) light absorption mainly depends on surface plasmon resonance and a high density of free charge carriers (FCCs). However, increasing FCC density in semiconductors is still a challenge. In this work, we demonstrated that multitudinous S-scheme interface junctions can be constructed within nanoscale Co₃O₄–Co₃(PO₄)₂, leading to enhanced light absorption of phosphates over the entire solar spectrum due to the increased FCC density and charge-carrier configurations. This absorber can also boost the photothermal performance of Ca(OH)₂. The photothermal dehydration conversion of Ca(OH)₂ is considerably improved (13.7 times). The reversibility of the photothermal hydration–dehydration cycles of Ca(OH)₂ is improved by 39 times. This composite is promising for photothermal conversion and thermal energy storage in one-step.

Original language	English
Article number	120993
Journal	Chemical Engineering Science
Volume	304
DOIs	https://doi.org/10.1016/j.ces.2024.120993
Publication status	Published - 1 Feb 2025

Keywords

Charge carrier
Cobalt
Hydroxide
Interface junction
Internal electric field
Phosphates
Solar energy

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10.1016/j.ces.2024.120993

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title = "Improved absorption of phosphates through interface junctions and photothermal–energy–storage capability of Ca(OH)2–[Co3O4–Co3(PO4)2]",

abstract = "Strong absorption in the full solar spectrum is required for efficient usage of solar energy. Near-infrared (NIR) light absorption mainly depends on surface plasmon resonance and a high density of free charge carriers (FCCs). However, increasing FCC density in semiconductors is still a challenge. In this work, we demonstrated that multitudinous S-scheme interface junctions can be constructed within nanoscale Co3O4–Co3(PO4)2, leading to enhanced light absorption of phosphates over the entire solar spectrum due to the increased FCC density and charge-carrier configurations. This absorber can also boost the photothermal performance of Ca(OH)2. The photothermal dehydration conversion of Ca(OH)2 is considerably improved (13.7 times). The reversibility of the photothermal hydration–dehydration cycles of Ca(OH)2 is improved by 39 times. This composite is promising for photothermal conversion and thermal energy storage in one-step.",

keywords = "Charge carrier, Cobalt, Hydroxide, Interface junction, Internal electric field, Phosphates, Solar energy",

author = "Liu, {Cheng Hui} and Hao, {Rui Min} and Ji Peng and Liu, {Wen Xi} and Ji, {Xuan An} and Lin Zhu and Xu, {Zhi Bin} and Wu, {Qin Pei}",

note = "Publisher Copyright: {\textcopyright} 2024 Elsevier Ltd",

year = "2025",

month = feb,

day = "1",

doi = "10.1016/j.ces.2024.120993",

language = "English",

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T1 - Improved absorption of phosphates through interface junctions and photothermal–energy–storage capability of Ca(OH)2–[Co3O4–Co3(PO4)2]

AU - Liu, Cheng Hui

AU - Hao, Rui Min

AU - Peng, Ji

AU - Liu, Wen Xi

AU - Ji, Xuan An

AU - Zhu, Lin

AU - Xu, Zhi Bin

AU - Wu, Qin Pei

PY - 2025/2/1

Y1 - 2025/2/1

N2 - Strong absorption in the full solar spectrum is required for efficient usage of solar energy. Near-infrared (NIR) light absorption mainly depends on surface plasmon resonance and a high density of free charge carriers (FCCs). However, increasing FCC density in semiconductors is still a challenge. In this work, we demonstrated that multitudinous S-scheme interface junctions can be constructed within nanoscale Co3O4–Co3(PO4)2, leading to enhanced light absorption of phosphates over the entire solar spectrum due to the increased FCC density and charge-carrier configurations. This absorber can also boost the photothermal performance of Ca(OH)2. The photothermal dehydration conversion of Ca(OH)2 is considerably improved (13.7 times). The reversibility of the photothermal hydration–dehydration cycles of Ca(OH)2 is improved by 39 times. This composite is promising for photothermal conversion and thermal energy storage in one-step.

AB - Strong absorption in the full solar spectrum is required for efficient usage of solar energy. Near-infrared (NIR) light absorption mainly depends on surface plasmon resonance and a high density of free charge carriers (FCCs). However, increasing FCC density in semiconductors is still a challenge. In this work, we demonstrated that multitudinous S-scheme interface junctions can be constructed within nanoscale Co3O4–Co3(PO4)2, leading to enhanced light absorption of phosphates over the entire solar spectrum due to the increased FCC density and charge-carrier configurations. This absorber can also boost the photothermal performance of Ca(OH)2. The photothermal dehydration conversion of Ca(OH)2 is considerably improved (13.7 times). The reversibility of the photothermal hydration–dehydration cycles of Ca(OH)2 is improved by 39 times. This composite is promising for photothermal conversion and thermal energy storage in one-step.

KW - Charge carrier

KW - Cobalt

KW - Hydroxide

KW - Interface junction

KW - Internal electric field

KW - Phosphates

KW - Solar energy

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U2 - 10.1016/j.ces.2024.120993

DO - 10.1016/j.ces.2024.120993

M3 - Article

AN - SCOPUS:85211154731

SN - 0009-2509

VL - 304

JO - Chemical Engineering Science

JF - Chemical Engineering Science

M1 - 120993

ER -

Improved absorption of phosphates through interface junctions and photothermal–energy–storage capability of Ca(OH)₂–[Co₃O₄–Co₃(PO₄)₂]

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Keywords

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