Yaqiong Su

Prof. Yaqiong Su

School of Chemistry, Xi’an Jiaotong University, Xi’an, China
orcid

Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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15 November 2019 in Science
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Journal Article
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Xinlong TianXinlong Tian
Xinlong Tian
XZXiao Zhao
Xiao Zhao
Yaqiong SuYaqiong Su
Yaqiong Su
LWLijuan Wang
Lijuan Wang
HWHongming Wang
Hongming Wang
BXBao Yu Xia
Bao Yu Xia
Nanocage-chain fuel cell catalysts: The expense and scarcity of platinum has driven efforts to improve oxygen-reduction catalysts in proton-exchange membrane fuel cells. Tian et al. synthesized chains of platinum-nickel alloy nanospheres connected by necking regions. These structures can be etched to form nanocages with platinum-rich surfaces that are highly active for oxygen reduction. In fuel cells running on air and hydrogen, these catalysts operated for at least 180 hours. Science , this issue p. 850

3 June 2021 in Nature Catalysis
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Journal Article
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VMValery Muravev
Valery Muravev
GSGiulia Spezzati
Giulia Spezzati
Yaqiong SuYaqiong Su
Yaqiong Su
APAlexander Parastaev
Alexander Parastaev
FCFu-Kuo Chiang
Fu-Kuo Chiang
EHEmiel J.M Hensen
Emiel J.M Hensen

11 April 2023 in Nature Communications
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Journal Article
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FYFenghui Ye
Fenghui Ye
SZShishi Zhang
Shishi Zhang
QCQingqing Cheng
Qingqing Cheng
YLYongde Long
Yongde Long
DLDong Liu
Dong Liu
CHChuangang Hu
Chuangang Hu
Electrochemical coupling of biomass valorization with carbon dioxide (CO2) conversion provides a promising approach to generate value-added chemicals on both sides of the electrolyzer. Herein, oxygen-vacancy-rich indium oxyhydroxide (InOOH-OV) is developed as a bifunctional catalyst for CO2reduction to formate and 5-hydroxymethylfurfural electrooxidation to 2,5-furandicarboxylic acid with faradaic efficiencies for both over 90.0% at optimized potentials. Atomic-scale electron microscopy images and density functional theory calculations reveal that the introduction of oxygen vacancy sites causes lattice distortion and charge redistribution. Operando Raman spectra indicate oxygen vacancies could protect the InOOH-OVfrom being further reduced during CO2conversion and increase the adsorption competitiveness for 5-hydroxymethylfurfural over hydroxide ions in alkaline electrolytes, making InOOH-OVa main-group p-block metal oxide electrocatalyst with bifunctional activities. Based on the catalytic performance of InOOH-OV, a pH-asymmetric integrated cell is fabricated by combining the CO2reduction and 5-hydroxymethylfurfural oxidation together in a single electrochemical cell to produce 2,5-furandicarboxylic acid and formate with high yields (both around 90.0%), providing a promising approach to generate valuable commodity chemicals simultaneously on both electrodes.

19 February 2024 in ACS Catalysis
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Journal Article
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YWYang Wang
Yang Wang
JZJianrui Zhang
Jianrui Zhang
JZJianyun Zhao
Jianyun Zhao
YWYuantao Wei
Yuantao Wei
SCShenghua Chen
Shenghua Chen
CXChunhui Xiao
Chunhui Xiao

15 March 2024 in Science
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JLJiale Liu
Jiale Liu
XCXiayan Chen
Xiayan Chen
KCKaizhong Chen
Kaizhong Chen
WTWenming Tian
Wenming Tian
YSYusong Sheng
Yusong Sheng
HHHongwei Han
Hongwei Han
Printable mesoscopic perovskite solar cells (p-MPSCs) do not require the added hole-transport layer needed in traditional p-n junctions but have also exhibited lower power conversion efficiencies of about 19%. We performed device simulation and carrier dynamics analysis to design a p-MPSC with mesoporous layers of semiconducting titanium dioxide, insulating zirconium dioxide, and conducting carbon infiltrated with perovskite that enabled three-dimensional injection of photoexcited electrons into titanium dioxide for collection at a transparent conductor layer. Holes underwent long-distance diffusion toward the carbon back electrode, and this carrier separation reduced recombination at the back contact. Nonradiative recombination at the bulk titanium dioxide/perovskite interface was reduced by ammonium phosphate modification. The resulting p-MPSCs achieved a power conversion efficiency of 22.2% and maintained 97% of their initial efficiency after 750 hours of maximum power point tracking at 55 ± 5°C.

17 August 2021 in Nano Letters
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Journal Article
Closed access
SCShenghua Chen
Shenghua Chen
BWBingqing Wang
Bingqing Wang
JZJiexin Zhu
Jiexin Zhu
LWLiqiang Wang
Liqiang Wang
HOHonghui Ou
Honghui Ou
YLYadong Li
Yadong Li