What question did this study set out to answer?

To develop a room-temperature, mixed-conducting graphene oxide membrane capable of selective hydrogen separation without requiring high operating temperatures.

August 19, 2026ACS Applied Engineering Materials

Asymmetric Graphene Oxide Membrane for Selective Hydrogen Separation at Room Temperature

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Authors

GPGhina Kifayah Putri TNTakeru Nakahara TKToma Kiyozawa

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Overview

Materials study demonstrates room-temperature hydrogen separation using asymmetric graphene oxide membranes, highlighting an energy-efficient alternative to high-temperature ceramics.

Key Points

To develop a room-temperature, mixed-conducting graphene oxide membrane capable of selective hydrogen separation without requiring high operating temperatures.
Fabricated an asymmetric membrane structure using a thin layer of partially reduced sulfonated graphene oxide intercalated with cerium (As-PrSGOCe) supported on porous carbon paper.
Characterized mixed proton and electron transport conductivities and measured gas permeation rates and stability at 25 °C.
Achieved mixed proton and electron conductivities of 1.13 mS cm−1 and 1.19 mS cm−1, respectively.
Demonstrated hydrogen fluxes up to 0.15 mL min−1 cm−2 at 25 °C with undetectable helium permeation and continuous stable operation over 70 hours.

Cite This Study

Putri et al. (2026) studied this question.

synapsesocial.com/papers/6a8563eb03308d306e2d7507 https://doi.org/10.1021/acsaenm.6c00563

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August 19, 2026ACS Applied Engineering Materials

Asymmetric Graphene Oxide Membrane for Selective Hydrogen Separation at Room Temperature

View Full Paper

Ask AI

Bookmark

Authors

GPGhina Kifayah Putri TNTakeru Nakahara TKToma Kiyozawa

Discussion

Member takes

Overview

Materials study demonstrates room-temperature hydrogen separation using asymmetric graphene oxide membranes, highlighting an energy-efficient alternative to high-temperature ceramics.

Key Points

To develop a room-temperature, mixed-conducting graphene oxide membrane capable of selective hydrogen separation without requiring high operating temperatures.
Fabricated an asymmetric membrane structure using a thin layer of partially reduced sulfonated graphene oxide intercalated with cerium (As-PrSGOCe) supported on porous carbon paper.
Characterized mixed proton and electron transport conductivities and measured gas permeation rates and stability at 25 °C.
Achieved mixed proton and electron conductivities of 1.13 mS cm−1 and 1.19 mS cm−1, respectively.
Demonstrated hydrogen fluxes up to 0.15 mL min−1 cm−2 at 25 °C with undetectable helium permeation and continuous stable operation over 70 hours.

Cite This Study

Putri et al. (2026) studied this question.

synapsesocial.com/papers/6a8563eb03308d306e2d7507 https://doi.org/10.1021/acsaenm.6c00563

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