TY - JOUR
T1 - Harnessing Photo-to-Thermal Conversion in Sulfur-Vulcanized Mxene for High-Efficiency Solar-to-Carbon-Fuel Synthesis
AU - Chen, Yahui
AU - Lin, Xinyu
AU - Li, Wanhe
AU - Sun, Hongyang
AU - Jia, Shuhan
AU - Zhou, Yiying
AU - Hao, Yue
AU - Liu, Zhonghuan
AU - Yin, Shikang
AU - Guo, Chengqi
AU - Sun, Yuming
AU - Huo, Pengwei
AU - Li, Chunxiang
AU - Ng, Yun Hau
AU - Crittenden, John
AU - Zhu, Zhi
AU - Yan, Yan
N1 - Publisher Copyright:
© 2024 Wiley-VCH GmbH.
PY - 2024/8/14
Y1 - 2024/8/14
N2 - Harnessing solar energy for the conversion of CO2 into value-added chemicals and fuels represents a promising strategy for sustainable development. Photo-to-thermal (PTT) conversion, an often-underestimated factor, offers a remarkable approach to enhance the photocatalytic transformation of CO2, by reducing the activation energy of catalytic reactions and accelerating reaction kinetics. In order to achieve a higher energy return on investment (EROI), in this study, a sulfur-vulcanized, multi-layer Ti3C2 MXene is unveiled, capable of efficient sunlight-driven CO2 photoreduction, by capitalizing on PTT conversion across the full visible-to-near-infrared (NIR) spectrum. The vulcanization strategy is pivotal here, as it not only introduces an abundance of reactive sites but also extends the NIR response (peaking at 1095 nm) of MXene. The resulting rapid PTT and synergistic photo-thermal-catalytic CO2 reduction constitute a significant advance in this area, where CH4 (12.03 mmol g−1 h−1) and C2H4 (3.55 mmol g−1 h−1) yields are achieved with a C2+ selectivity of 29.76% under concentrated natural sunlight. This work sets a new benchmark for EROI with an average solar-to-carbon-fuel (STF) conversion efficiency greater than 0.045%.
AB - Harnessing solar energy for the conversion of CO2 into value-added chemicals and fuels represents a promising strategy for sustainable development. Photo-to-thermal (PTT) conversion, an often-underestimated factor, offers a remarkable approach to enhance the photocatalytic transformation of CO2, by reducing the activation energy of catalytic reactions and accelerating reaction kinetics. In order to achieve a higher energy return on investment (EROI), in this study, a sulfur-vulcanized, multi-layer Ti3C2 MXene is unveiled, capable of efficient sunlight-driven CO2 photoreduction, by capitalizing on PTT conversion across the full visible-to-near-infrared (NIR) spectrum. The vulcanization strategy is pivotal here, as it not only introduces an abundance of reactive sites but also extends the NIR response (peaking at 1095 nm) of MXene. The resulting rapid PTT and synergistic photo-thermal-catalytic CO2 reduction constitute a significant advance in this area, where CH4 (12.03 mmol g−1 h−1) and C2H4 (3.55 mmol g−1 h−1) yields are achieved with a C2+ selectivity of 29.76% under concentrated natural sunlight. This work sets a new benchmark for EROI with an average solar-to-carbon-fuel (STF) conversion efficiency greater than 0.045%.
KW - CO reduction
KW - energy return on investment
KW - photo-to-thermal conversion
KW - TiC MXene
KW - visible-to-near-infrared
UR - http://www.scopus.com/inward/record.url?scp=85189084816&partnerID=8YFLogxK
U2 - 10.1002/adfm.202400121
DO - 10.1002/adfm.202400121
M3 - Article
AN - SCOPUS:85189084816
SN - 1616-301X
VL - 34
JO - Advanced Functional Materials
JF - Advanced Functional Materials
IS - 33
M1 - 2400121
ER -