Decoupled amphoteric water electrolysis and its integration with Mn-Zn battery for flexible utilization of renewables
Amphoteric water electrolysis with a bipolar membrane can accommodate optimal pH conditions simultaneously for both cathode and anode under steady-state operation without changing the overall thermodynamics of water splitting. However, the high voltage loss of bipolar membrane imposes significant co...
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| Veröffentlicht in: | Energy & environmental science 2021-02, Vol.14 (2), p.883-889 |
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| container_end_page | 889 |
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| container_title | Energy & environmental science |
| container_volume | 14 |
| creator | Huang, Jianhang Xie, Yihua Yan, Lei Wang, Bingliang Kong, Taoyi Dong, Xiaoli Wang, Yonggang Xia, Yongyao |
| description | Amphoteric water electrolysis with a bipolar membrane can accommodate optimal pH conditions simultaneously for both cathode and anode under steady-state operation without changing the overall thermodynamics of water splitting. However, the high voltage loss of bipolar membrane imposes significant constraints on operating current density, leading to low current density ( |
| doi_str_mv | 10.1039/d0ee03639k |
| format | Article |
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−2
) for hydrogen production. In this work, decoupled amphoteric water electrolysis assisted with MnO
2
/Mn
2+
redox mediator demonstrated to separate the stiff couple between hydrogen and oxygen production into two independent processes, which enables hydrogen production to run under high power input (up to 1 A cm
−2
) with oxygen production under low power input. Furthermore, such an amphoteric decoupled water electrolysis system can be integrated with an Mn-Zn battery, which is able to realize flexible conversion from renewables to hydrogen and electric energy, thus making full use of renewables.
The flexible utilization of renewables for power-to-fuel and/or power-to-power is enabled by the decoupled amphoteric water electrolysis and Mn-Zn battery.</description><identifier>ISSN: 1754-5692</identifier><identifier>EISSN: 1754-5706</identifier><identifier>DOI: 10.1039/d0ee03639k</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Amphoterics ; Current density ; Electrolysis ; High voltage ; Hydrogen ; Hydrogen production ; Hydrogen-based energy ; Low currents ; Manganese dioxide ; Membranes ; Oxygen ; Oxygen production ; Power management ; Water splitting ; Zinc</subject><ispartof>Energy & environmental science, 2021-02, Vol.14 (2), p.883-889</ispartof><rights>Copyright Royal Society of Chemistry 2021</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c318t-5c0062bf5831224aebc1b83be2ffc716a4199bb81e12a980a033b400558f06153</citedby><cites>FETCH-LOGICAL-c318t-5c0062bf5831224aebc1b83be2ffc716a4199bb81e12a980a033b400558f06153</cites><orcidid>0000-0002-3267-7548 ; 0000-0001-6379-9655 ; 0000-0002-7596-6454 ; 0000-0002-2447-4679 ; 0000-0001-7301-4487</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Huang, Jianhang</creatorcontrib><creatorcontrib>Xie, Yihua</creatorcontrib><creatorcontrib>Yan, Lei</creatorcontrib><creatorcontrib>Wang, Bingliang</creatorcontrib><creatorcontrib>Kong, Taoyi</creatorcontrib><creatorcontrib>Dong, Xiaoli</creatorcontrib><creatorcontrib>Wang, Yonggang</creatorcontrib><creatorcontrib>Xia, Yongyao</creatorcontrib><title>Decoupled amphoteric water electrolysis and its integration with Mn-Zn battery for flexible utilization of renewables</title><title>Energy & environmental science</title><description>Amphoteric water electrolysis with a bipolar membrane can accommodate optimal pH conditions simultaneously for both cathode and anode under steady-state operation without changing the overall thermodynamics of water splitting. However, the high voltage loss of bipolar membrane imposes significant constraints on operating current density, leading to low current density (<50 mA cm
−2
) for hydrogen production. In this work, decoupled amphoteric water electrolysis assisted with MnO
2
/Mn
2+
redox mediator demonstrated to separate the stiff couple between hydrogen and oxygen production into two independent processes, which enables hydrogen production to run under high power input (up to 1 A cm
−2
) with oxygen production under low power input. Furthermore, such an amphoteric decoupled water electrolysis system can be integrated with an Mn-Zn battery, which is able to realize flexible conversion from renewables to hydrogen and electric energy, thus making full use of renewables.
The flexible utilization of renewables for power-to-fuel and/or power-to-power is enabled by the decoupled amphoteric water electrolysis and Mn-Zn battery.</description><subject>Amphoterics</subject><subject>Current density</subject><subject>Electrolysis</subject><subject>High voltage</subject><subject>Hydrogen</subject><subject>Hydrogen production</subject><subject>Hydrogen-based energy</subject><subject>Low currents</subject><subject>Manganese dioxide</subject><subject>Membranes</subject><subject>Oxygen</subject><subject>Oxygen production</subject><subject>Power management</subject><subject>Water splitting</subject><subject>Zinc</subject><issn>1754-5692</issn><issn>1754-5706</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNpFkElPwzAQRiMEEqVw4Y5kiRtSYGxnPaJSFlHEBS5cItsdU5c0DrajUn49KWE5fSPNm0Uvio4pnFPg5cUcEIFnvHzbiUY0T5M4zSHb_a2zku1HB94vATIGeTmKuitUtmtrnBOxahc2oDOKrEWfBGtUwdl6440nopkTEzwxTcBXJ4KxDVmbsCAPTfzSEClCP7Ih2jqia_wwskbSBVObz4G1mjhscC36hj-M9rSoPR795Dh6vp4-TW7j2ePN3eRyFitOixCnavun1GnBKWOJQKmoLLhEprXKaSYSWpZSFhQpE2UBAjiXCUCaFhoymvJxdDrsbZ1979CHamk71_QnK5aUjANnUPTU2UApZ713qKvWmZVwm4pCtdVaXcF0-q31vodPBth59cf9a-dfas913g</recordid><startdate>20210223</startdate><enddate>20210223</enddate><creator>Huang, Jianhang</creator><creator>Xie, Yihua</creator><creator>Yan, Lei</creator><creator>Wang, Bingliang</creator><creator>Kong, Taoyi</creator><creator>Dong, Xiaoli</creator><creator>Wang, Yonggang</creator><creator>Xia, Yongyao</creator><general>Royal Society of Chemistry</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7ST</scope><scope>7TB</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>L7M</scope><scope>SOI</scope><orcidid>https://orcid.org/0000-0002-3267-7548</orcidid><orcidid>https://orcid.org/0000-0001-6379-9655</orcidid><orcidid>https://orcid.org/0000-0002-7596-6454</orcidid><orcidid>https://orcid.org/0000-0002-2447-4679</orcidid><orcidid>https://orcid.org/0000-0001-7301-4487</orcidid></search><sort><creationdate>20210223</creationdate><title>Decoupled amphoteric water electrolysis and its integration with Mn-Zn battery for flexible utilization of renewables</title><author>Huang, Jianhang ; Xie, Yihua ; Yan, Lei ; Wang, Bingliang ; Kong, Taoyi ; Dong, Xiaoli ; Wang, Yonggang ; Xia, Yongyao</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c318t-5c0062bf5831224aebc1b83be2ffc716a4199bb81e12a980a033b400558f06153</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Amphoterics</topic><topic>Current density</topic><topic>Electrolysis</topic><topic>High voltage</topic><topic>Hydrogen</topic><topic>Hydrogen production</topic><topic>Hydrogen-based energy</topic><topic>Low currents</topic><topic>Manganese dioxide</topic><topic>Membranes</topic><topic>Oxygen</topic><topic>Oxygen production</topic><topic>Power management</topic><topic>Water splitting</topic><topic>Zinc</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Huang, Jianhang</creatorcontrib><creatorcontrib>Xie, Yihua</creatorcontrib><creatorcontrib>Yan, Lei</creatorcontrib><creatorcontrib>Wang, Bingliang</creatorcontrib><creatorcontrib>Kong, Taoyi</creatorcontrib><creatorcontrib>Dong, Xiaoli</creatorcontrib><creatorcontrib>Wang, Yonggang</creatorcontrib><creatorcontrib>Xia, Yongyao</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Environment Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environment Abstracts</collection><jtitle>Energy & environmental science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Huang, Jianhang</au><au>Xie, Yihua</au><au>Yan, Lei</au><au>Wang, Bingliang</au><au>Kong, Taoyi</au><au>Dong, Xiaoli</au><au>Wang, Yonggang</au><au>Xia, Yongyao</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Decoupled amphoteric water electrolysis and its integration with Mn-Zn battery for flexible utilization of renewables</atitle><jtitle>Energy & environmental science</jtitle><date>2021-02-23</date><risdate>2021</risdate><volume>14</volume><issue>2</issue><spage>883</spage><epage>889</epage><pages>883-889</pages><issn>1754-5692</issn><eissn>1754-5706</eissn><abstract>Amphoteric water electrolysis with a bipolar membrane can accommodate optimal pH conditions simultaneously for both cathode and anode under steady-state operation without changing the overall thermodynamics of water splitting. However, the high voltage loss of bipolar membrane imposes significant constraints on operating current density, leading to low current density (<50 mA cm
−2
) for hydrogen production. In this work, decoupled amphoteric water electrolysis assisted with MnO
2
/Mn
2+
redox mediator demonstrated to separate the stiff couple between hydrogen and oxygen production into two independent processes, which enables hydrogen production to run under high power input (up to 1 A cm
−2
) with oxygen production under low power input. Furthermore, such an amphoteric decoupled water electrolysis system can be integrated with an Mn-Zn battery, which is able to realize flexible conversion from renewables to hydrogen and electric energy, thus making full use of renewables.
The flexible utilization of renewables for power-to-fuel and/or power-to-power is enabled by the decoupled amphoteric water electrolysis and Mn-Zn battery.</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/d0ee03639k</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0002-3267-7548</orcidid><orcidid>https://orcid.org/0000-0001-6379-9655</orcidid><orcidid>https://orcid.org/0000-0002-7596-6454</orcidid><orcidid>https://orcid.org/0000-0002-2447-4679</orcidid><orcidid>https://orcid.org/0000-0001-7301-4487</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1754-5692 |
| ispartof | Energy & environmental science, 2021-02, Vol.14 (2), p.883-889 |
| issn | 1754-5692 1754-5706 |
| language | eng |
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| source | Royal Society Of Chemistry Journals 2008- |
| subjects | Amphoterics Current density Electrolysis High voltage Hydrogen Hydrogen production Hydrogen-based energy Low currents Manganese dioxide Membranes Oxygen Oxygen production Power management Water splitting Zinc |
| title | Decoupled amphoteric water electrolysis and its integration with Mn-Zn battery for flexible utilization of renewables |
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