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Polyvinyl alcohol/nanocellulose nanocomposites from oil palm empty fruit bunch as anion exchange membranes for direct alcohol-hydrogen peroxide fuel cells

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Abstract

A series of nanocomposites based on quaternized polyvinyl alcohol (PVA) and nanocellulose (NC) from oil palm empty fruit bunch have been used as anion exchange membranes (AEM) for direct alcohol-hydrogen peroxide fuel cell (DAHPFC) applications. The PVA and NC are individually quaternized with hexadecyltrimethyl ammonium bromide (HDT) and glycidyltrimethyl ammonium chloride (GAC), cross-linked, and cast to form quaternized polyvinyl alcohol/quaternized nanocellulose (QPVA/QNC) membranes following thermal treatment. We observe that an increase of QNC quaternization degree increases quaternary ammonium content and the dimensional stability of the QPVA/QNC membranes while inhibiting PVA matrix crystallinity, decreasing both HDT dispersal and membrane thermal stability. We determine that QPVA/QNCGAC30% membranes exhibit a maximum ion conductivity of 9.85 ± 0.07 mS/cm at room temperature and 29.07 ± 1.76 mS/cm at 80 °C with an ion exchange capacity of approximately 1.14 meq/g. Addition of QNC also enhances the alkaline stability of the optimized QPVA/QNC membrane with less ion conductivity loss. Optimized QPVA/QNC membranes have been demonstrated as an AEM in DAHPFCs without the use of platinum based catalysts. Compared with other membranes, we believe this nanocomposite membrane with comparable performances can promise AEM application in DAHPFCs.

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Abbreviations

AEM :

Anion exchange membrane

DAFC :

Direct alcohol fuel cell

DAHPFC :

Direct alcohol-hydrogen peroxide fuel cell

FE-TEM :

Field emission transmission electron microscopy

FT-IR :

Fourier transform infrared spectroscopy

GAC :

Glycidyltrimethyl ammonium chloride

HDT :

Hexadecyltrimethyl ammonium bromide

IEC :

Ion exchange capacity

NC :

Nanocellulose

OPEFB :

Oil palm empty fruit bunch

PVA :

Polyvinyl alcohol

QNC :

Quaternized nanocellulose

QPVA :

Quaternized polyvinyl alcohol

SEM :

Scanning electron microscopy

TGA :

Thermo gravimetric analysis

XPS:

X-ray photoelectron spectroscopy

XRD :

X-ray diffraction

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Acknowledgments

This work was financially supported by the Office of the Ministry of Higher Education, Science, Research and Innovation and the Thailand Science Research and Innovation through the Kasetsart University Reinventing University Program 2021. We are grateful to the Department of Chemistry at Faculty of Science, Scientific Equipment Center and Center of Excellence-Oil Palm, Kasetsart University Research and Development Institute, Kasetsart University, and Suksomboon Palm Oil Co., Ltd. for their support.

Funding

This work was financially supported by the Office of the Ministry of Higher Education, Science, Research and Innovation and the Thailand Science Research and Innovation through the Kasetsart University (Reinventing University Program 2021). Other supports were received from the Department of Chemistry at Faculty of Science, Scientific Equipment Center and Center of Excellence-Oil Palm, Kasetsart University Research and Development Institute, Kasetsart University, and Suksomboon Palm Oil Co., Ltd.

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All authors contributed to the work by designing the research, analyzing data, troubleshooting, and giving discussion. Material preparation, data collection, and writing the draft were performed by CY (the first author). All authors commented the draft and gave the suggestion. The first author and the corresponding author edited the manuscript. All authors read and approved the final manuscript.

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Correspondence to Pinsuda Viravathana.

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Yunphuttha, C., Midpanon, S., Marr, D.W.M. et al. Polyvinyl alcohol/nanocellulose nanocomposites from oil palm empty fruit bunch as anion exchange membranes for direct alcohol-hydrogen peroxide fuel cells. Cellulose 31, 1569–1601 (2024). https://doi.org/10.1007/s10570-023-05692-w

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