Substituent effect of conjugated microporous polymers on the photocatalytic hydrogen evolution activity

2020 ◽  
Vol 8 (5) ◽  
pp. 2404-2411 ◽  
Author(s):  
Xiaomin Gao ◽  
Chang Shu ◽  
Chong Zhang ◽  
Wenyan Ma ◽  
Shi-Bin Ren ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydrogen Evolution ◽  
Substituent Effect ◽  
Evolution Rate ◽  
Photocatalytic Hydrogen Evolution ◽  
Microporous Polymers ◽  
Hydrogen Evolution Rate ◽  
Conjugated Microporous Polymers

The influence of substituent groups on the photocatalytic activity of conjugated microporous polymers was investigated, and a high photocatalytic hydrogen evolution rate of 18.93 mmol h−1 g−1 was achieved by PyDF with fluorine atoms.

Hierarchical-metal–organic framework-templated Cu0.5Zn0.5In2S4-rGO-g-C3N4: flexible synthesis and enhanced photocatalytic activity

2020 ◽  
Vol 8 (42) ◽  
pp. 22124-22133 ◽  
Author(s):  
Mei-Ling Xu ◽  
Ling-Wang Liu ◽  
Kai Wang ◽  
Yi-Chuan Dou ◽  
Kui Li ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydrogen Evolution ◽  
Metal Organic Framework ◽  
Pure Water ◽  
Evolution Rate ◽  
Photocatalytic Hydrogen Evolution ◽  
Hydrogen Evolution Rate ◽  
Metal Organic ◽  
Organic Framework

The g-C3N4-rGO nanosheets are uniformly inserted into hollow Cu0.5Zn0.5In2S4 quaternary sulfide derived from ZnCu-MIM@In-PTA hierarchical-MOFs, which illustrates excellent photocatalytic hydrogen evolution rate even in pure water.

Pyrene-containing conjugated organic microporous polymers for photocatalytic hydrogen evolution from water

2021 ◽  
Author(s):  
Mohamed Gamal Mohamed ◽  
Mohamed Hammad Elsayed ◽  
Ahmed M. Elewa ◽  
Ahmed F. M. EL-Mahdy ◽  
Cheng-Han Yang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
High Stability ◽  
Photocatalytic Hydrogen Evolution ◽  
Microporous Polymers ◽  
Very High ◽  
Conjugated Microporous Polymers ◽  
Production Efficiencies

Pyrene based conjugated microporous polymers (CMPs) as photocatalysts with promising H2 production efficiencies and very high stability.

Significant improvement of photocatalytic hydrogen evolution of diketopyrrolopyrrole-based donor–acceptor conjugated polymers through side-chain engineering

2019 ◽  
Vol 10 (47) ◽  
pp. 6473-6480 ◽  
Author(s):  
Ruimin Diao ◽  
Haonan Ye ◽  
Zhicheng Yang ◽  
Shicong Zhang ◽  
Kangyi Kong ◽  
...  
Keyword(s):  
Absorption Spectrum ◽  
Conjugated Polymers ◽  
Hydrogen Evolution ◽  
Evolution Rate ◽  
Side Chain ◽  
Photocatalytic Hydrogen Evolution ◽  
Hydrogen Evolution Rate ◽  
Donor Acceptor

The hydrogen evolution rate of PDPP3B-O4 with butoxy chain was 5.53 mmol h−1 g−1 with 1% Pt loading (λ > 400 nm), increased 110 times than PDPP3B-C8 with octyl chain due to wider absorption spectrum and better wettability via side chain engineering.

Photocatalytic Hydrogen Evolution from Water Using Heterocyclic Conjugated Microporous Polymers: Porous or Non-Porous?

2018 ◽  
Author(s):  
Reiner Sebastian Sprick ◽  
Yang Bai ◽  
Catherine M. Aitchison ◽  
Duncan J. Woods ◽  
Andrew I. Cooper
Keyword(s):  
Hydrogen Evolution ◽  
External Quantum Efficiency ◽  
Structural Analog ◽  
Linear Polymers ◽  
Porous Network ◽  
Photocatalytic Hydrogen Evolution ◽  
Microporous Polymers ◽  
Porous Networks ◽  
Hole Scavenger ◽  
Conjugated Microporous Polymers

<p>Three series of conjugated microporous polymers (CMPs) were studied as photocatalysts for producing hydrogen from water using a sacrificial hole-scavenger. In all cases, dibenzo[<i>b</i>,<i>d</i>]thiophene sulfone polymers outperformed their fluorene analogs. A porous network, S-CMP3, showed the highest hydrogen evolution rate of 6076 µmol h<sup>-1</sup> g<sup>-1</sup> (λ > 295 nm) and 3106 µmol h<sup>-1</sup> g<sup>-1</sup> (λ > 420 nm), with an external quantum efficiency of 13.2% at 420 nm. S-CMP3 outperforms its linear structural analog, P35, while in other cases, non-porous linear polymers are superior to equivalent porous networks. This suggests that microporosity can be beneficial for sacrificial photocatalytic hydrogen evolution, but not for all monomer combinations.</p>

scholarly journals Extended conjugated microporous polymers for photocatalytic hydrogen evolution from water

2016 ◽  
Vol 52 (65) ◽  
pp. 10008-10011 ◽  
Author(s):  
Reiner Sebastian Sprick ◽  
Baltasar Bonillo ◽  
Michael Sachs ◽  
Rob Clowes ◽  
James R. Durrant ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Electron Donor ◽  
Photocatalytic Hydrogen Evolution ◽  
Microporous Polymers ◽  
Conjugated Microporous Polymers

Conjugated microporous polymers (CMPs) have been used as photocatalysts for hydrogen production from water in the presence of a sacrificial electron donor.

Perylene-Containing Conjugated Microporous Polymers for Photocatalytic Hydrogen Evolution

2017 ◽  
Vol 218 (14) ◽  
pp. 1700049 ◽  
Author(s):  
Yunfeng Xu ◽  
Na Mao ◽  
Shi Feng ◽  
Chong Zhang ◽  
Feng Wang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Photocatalytic Hydrogen Evolution ◽  
Microporous Polymers ◽  
Conjugated Microporous Polymers

Decorating MoS2 and CoSe2 nanostructures on 1D-CdS nanorods for boosting photocatalytic hydrogen evolution rate

2019 ◽  
Vol 289 ◽  
pp. 111164 ◽  
Author(s):  
Ramanadha Mangiri ◽  
D. Amaranatha Reddy ◽  
K. Subramanyam ◽  
K. Sunil Kumar ◽  
A. Sudharani ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Evolution Rate ◽  
Photocatalytic Hydrogen Evolution ◽  
Hydrogen Evolution Rate ◽  
Cds Nanorods

scholarly journals Ultrafine CoO nanoparticles as an efficient cocatalyst for enhanced photocatalytic hydrogen evolution

Nanoscale ◽  
2019 ◽  
Vol 11 (33) ◽  
pp. 15633-15640 ◽  
Author(s):  
Jiayu Chu ◽  
Guoji Sun ◽  
Xijiang Han ◽  
Xin Chen ◽  
Jiajun Wang ◽  
...  
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Evolution Rate ◽  
Visible Light Region ◽  
Photocatalytic Hydrogen Evolution ◽  
Hydrogen Evolution Rate ◽  
Cds Nanorods ◽  
Light Region ◽  
Highly Dispersed ◽  
Coo Nanoparticles

Highly dispersed ultrafine CoO nanoparticles, as a novel and efficient cocatalyst, can dramatically enhance the photocatalytic hydrogen evolution rate of CdS nanorods in the visible-light region.

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