October 18, 2018 Journal article Open Access

Schwarz, Dana; Acharjya, Amitava; Ichangi, Arun; Kochergin, Yaroslav; Lyu, Pengbo; Opanasenko, Maksym V.; Tarábek, Jan; Vacek Chocholoušová, Jana; Vacek, Jaroslav; Schmidt, Johannes; Nachtigall, Petr; Thomas, Arne; Bojdys, Michael J.

MARC21 XML Export

<?xml version='1.0' encoding='UTF-8'?>
<record xmlns="http://www.loc.gov/MARC21/slim">
  <leader>00000nam##2200000uu#4500</leader>
  <datafield tag="540" ind1=" " ind2=" ">
    <subfield code="u">https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode</subfield>
    <subfield code="a">Creative Commons Attribution Non Commercial No Derivatives 4.0 International</subfield>
  </datafield>
  <datafield tag="260" ind1=" " ind2=" ">
    <subfield code="c">2018-10-18</subfield>
  </datafield>
  <controlfield tag="005">20200120174142.0</controlfield>
  <controlfield tag="001">1471618</controlfield>
  <datafield tag="909" ind1="C" ind2="O">
    <subfield code="p">openaire</subfield>
    <subfield code="o">oai:zenodo.org:1471618</subfield>
  </datafield>
  <datafield tag="520" ind1=" " ind2=" ">
    <subfield code="a">&lt;p&gt;Crystalline and amorphous organic materials are an&lt;br&gt;
emergent class of heterogeneous photocatalysts for the generation of&lt;br&gt;
hydrogen from water, but a direct correlation between their structures&lt;br&gt;
and the resulting properties has not been achieved so far. To make a&lt;br&gt;
meaningful comparison between structurally different, yet chemically&lt;br&gt;
similar porous polymers, we present two porous polymorphs of a&lt;br&gt;
triazine-based graphdiyene (TzG) framework from a simple, one-pot&lt;br&gt;
reaction using Cu(I) for TzG&lt;sub&gt;Cu&lt;/sub&gt; and Pd(II)/Cu(I) for TzG&lt;sub&gt;Pd/Cu&lt;/sub&gt; catalyzed&lt;br&gt;
homocoupling polymerization. The polymers form via irreversible&lt;br&gt;
coupling reactions and give rise to a crystalline (TzG&lt;sub&gt;Cu&lt;/sub&gt;) and an&lt;br&gt;
amorphous (TzG&lt;sub&gt;Pd/Cu&lt;/sub&gt;) polymorph. Notably, the crystalline and&lt;br&gt;
amorphous polymorphs are narrow-gap semiconductors with&lt;br&gt;
permanent surface areas of 660 m&lt;sup&gt;2&lt;/sup&gt; g&lt;sup&gt;-1&lt;/sup&gt; and 392 m&lt;sup&gt;2&lt;/sup&gt; g&lt;sup&gt;-1&lt;/sup&gt;, respectively.&lt;br&gt;
Hence, both polymers are ideal heterogeneous photocatalysts for&lt;br&gt;
water splitting with some of the highest hydrogen evolution rates&lt;br&gt;
reported thus far up to 972 &amp;mu;mol h&lt;sup&gt;-1&lt;/sup&gt; g&lt;sup&gt;-1&lt;/sup&gt; with and 276 &amp;mu;mol h&lt;sup&gt;-1&lt;/sup&gt; g&lt;sup&gt;-1&lt;/sup&gt;&lt;br&gt;
without Pt co-catalyst. We conclude, that crystalline order improves&lt;br&gt;
delocalisation, while the amorphous polymorph requires a co-catalyst&lt;br&gt;
for efficient charge transfer; this will need to be considered in future&lt;br&gt;
rational design of polymer catalysts and organic electronics.&lt;/p&gt;</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="0">(orcid)0000-0002-0998-171X</subfield>
    <subfield code="a">Acharjya, Amitava</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="0">(orcid)0000-0002-3094-4331</subfield>
    <subfield code="a">Ichangi, Arun</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="0">(orcid)0000-0002-9060-6350</subfield>
    <subfield code="a">Kochergin, Yaroslav</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="a">Lyu, Pengbo</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="a">Opanasenko, Maksym V.</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="a">Tarábek, Jan</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="a">Vacek Chocholoušová,  Jana</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="a">Vacek, Jaroslav</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="a">Schmidt, Johannes</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="a">Nachtigall, Petr</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="u">0000-0002-2130-4930</subfield>
    <subfield code="a">Thomas, Arne</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="u">Humboldt-Universität zu Berlin</subfield>
    <subfield code="0">(orcid)0000-0002-2592-4168</subfield>
    <subfield code="a">Bojdys, Michael J.</subfield>
  </datafield>
  <datafield tag="856" ind1="4" ind2=" ">
    <subfield code="s">1012588</subfield>
    <subfield code="z">md5:28e2c94b2fcc951114c3a091115b7978</subfield>
    <subfield code="u">https://zenodo.org/record/1471618/files/20180904_TzG_OA.pdf</subfield>
  </datafield>
  <datafield tag="856" ind1="4" ind2=" ">
    <subfield code="s">2435260</subfield>
    <subfield code="z">md5:539deb91f7a6ffcb2be4809eaae5c9e2</subfield>
    <subfield code="u">https://zenodo.org/record/1471618/files/20180904_TzG_SI_OA.pdf</subfield>
  </datafield>
  <datafield tag="542" ind1=" " ind2=" ">
    <subfield code="l">open</subfield>
  </datafield>
  <datafield tag="980" ind1=" " ind2=" ">
    <subfield code="a">publication</subfield>
    <subfield code="b">article</subfield>
  </datafield>
  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Schwarz, Dana</subfield>
  </datafield>
  <datafield tag="653" ind1=" " ind2=" ">
    <subfield code="a">graphdiyene</subfield>
  </datafield>
  <datafield tag="653" ind1=" " ind2=" ">
    <subfield code="a">photocatalysis</subfield>
  </datafield>
  <datafield tag="653" ind1=" " ind2=" ">
    <subfield code="a">covalent organic frameworks</subfield>
  </datafield>
  <datafield tag="653" ind1=" " ind2=" ">
    <subfield code="a">conjugated microporous polymers</subfield>
  </datafield>
  <datafield tag="653" ind1=" " ind2=" ">
    <subfield code="a">semiconductors</subfield>
  </datafield>
  <datafield tag="024" ind1=" " ind2=" ">
    <subfield code="a">10.1002/cssc.201802034</subfield>
    <subfield code="2">doi</subfield>
  </datafield>
  <datafield tag="245" ind1=" " ind2=" ">
    <subfield code="a">Tuning the porosity and photocatalytic performance of triazinebased graphdiyene polymers via polymorphism</subfield>
  </datafield>
  <datafield tag="536" ind1=" " ind2=" ">
    <subfield code="c">678462</subfield>
    <subfield code="a">Layered functional materials - beyond 'graphene'</subfield>
  </datafield>
  <datafield tag="650" ind1="1" ind2="7">
    <subfield code="a">cc-by</subfield>
    <subfield code="2">opendefinition.org</subfield>
  </datafield>
</record>