CO2 Photoreduction by H2O: Cooperative Catalysis of Palladium Species on Poly(triazine imide) Crystals - Details

author：

Indexed by：

Scopus

Abstract：

Photocatalytic　CO2　reduction　coupled　with　H2O　oxidation　has　been　pursued　extensively,　albeit　facing　challenges　in　efficiency　and　selectivity.　Herein,　we　develop　a　PdSAs+NPs/PTI　catalyst　by　co-anchoring　atomic　and　nanoparticulate　Pd　species　on　poly(triazine　imide)　crystals,　which　exhibits　high　activity,　selectivity,　and　stability　for　CO2　reduction　to　CO　using　H2O　as　the　reductant.　Combined　experimental　and　theoretical　studies　reveal　that　the　dual　Pd　species　synergistically　enhance　charge　separation　and　transfer　while　promoting　CO2　activation,　CO　desorption,　and　H2O　dissociation.　Photo-stimulated　electrons　migrate　to　Pd　nanoparticles　to　reduce　CO2,　and　holes　oxidize　Pd2+　sites　to　Pd4+　species　that　catalyze　H2O　splitting　to　OH*　and　H*.　The　resulting　H*　spills　onto　adjacent　Pd　nanoparticles　to　support　proton-coupled　CO2　reduction,　whereas　OH*　is　oxidized　by　Pd4+　to　evolve　O2,　regenerating　Pd2+,　and　closing　the　catalysis　cycle.　Importantly,　the　photoinduced　Pd4+　sites　dynamically　modulate　the　local　adsorption　environment,　weakening　*CO　binding　on　nearby　Pd　nanoparticles.　This　facilitates　*CO　desorption　and　hampers　its　hydrogenation　to　CH4,　enabling　high　CO　selectivity.　The　optimal　catalyst　achieves　a　CO　yield　rate　of　22.2 mmol gPd−1 h−1　with　95.7%　selectivity,　stably　operating　over　30　h.　©　2025　Wiley-VCH　GmbH.

Keyword：

Carbon nitrides CO2 reduction Photocatalysis Poly(triazine imide) Synergistic catalysis

Community：

[ 1 ] [Xu X.]State Key Laboratory of Chemistry for NBC Hazards Protection, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 2 ] [Xu X.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 3 ] [Su B.]State Key Laboratory of Chemistry for NBC Hazards Protection, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 4 ] [Su B.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 5 ] [Wang S.]State Key Laboratory of Chemistry for NBC Hazards Protection, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 6 ] [Wang S.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 7 ] [Xing W.]State Key Laboratory of Chemistry for NBC Hazards Protection, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 8 ] [Xing W.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 9 ] [Hung S.-F.]Department of Applied Chemistry and Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu, 300, Taiwan
[ 10 ] [Pan Z.]State Key Laboratory of Chemistry for NBC Hazards Protection, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 11 ] [Pan Z.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 12 ] [Fang Y.]State Key Laboratory of Chemistry for NBC Hazards Protection, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 13 ] [Fang Y.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 14 ] [Zhang G.]State Key Laboratory of Chemistry for NBC Hazards Protection, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 15 ] [Zhang G.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 16 ] [Zhang H.]Center for Renewable Energy and Storage Technologies (CREST), Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
[ 17 ] [Wang X.]State Key Laboratory of Chemistry for NBC Hazards Protection, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 18 ] [Wang X.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China

Reprint 's Address：

Email：

Show more details

Related Keywords：

Distorted carbon nitride nanosheets with activated n -> pi* transition and preferred textural properties for photocatalytic CO2 reduction
2021，JOURNAL OF CATALYSIS
Synergistic Ru Species on Poly(heptazine imide) Enabling Efficient Photocatalytic CO2 Reduction with H2O beyond 800 nm
2025，ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Allochroic platinum/carbon nitride with photoactivated ohmic contact for efficient visible-light photocatalytic hydrogen evolution
2023，CHEMICAL ENGINEERING JOURNAL
Enhancing Visible Light CO2 Reduction via π-Electron Delocalization in Barbituric Acid-Modified Poly(triazine imide) Crystals
2025，ACS CATALYSIS

Source ：

Angewandte Chemie - International Edition

ISSN： 1433-7851

Year： 2025

1 6 . 1 0 0

JCR@2023

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count：

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 2

Affiliated Colleges：

Get Fulltext

DOI Library Discovery Baidu Scholar Search SCOPUS

Type
Departments

All Years Choose Year From to