STUDI REDUKSI EMISI GAS KARBON DIOKSIDA DENGAN MENGKONVERSI MENJADI PRECIPITATED CALCIUM CARBONATE (PCC) MENGGUNAKAN METODE KARBONASI DOI Open Access
Nuryoto Nuryoto,

Heri Heriyanto,

Leli Rahmawati

et al.

JST (Jurnal Sains dan Teknologi), Journal Year: 2024, Volume and Issue: 13(2), P. 205 - 216

Published: July 25, 2024

Gas CO2 dapat mengakibatkan pemanasan global dan pada kadar tertentu mempengaruhi kesehatan manusia. Dalam rangka untuk menjaga di lingkungan dalam kondisi normal, maka penelitian ini mencoba mengkonversi menjadi precipitated calcium carbonate (PCC), yaitu dengan mengontakan gas Ca(OH)2. Tujuan dari adalah mempelajari menganalisa pengaruh kecepatan pengadukan, tekanan sistem reaksi, waktu interaksi pembuatan Precipitated Calcium Carbonate (PCC) menggunakan reaktor semi batch. Penelitian dilakukan hidrostatis 980-9800 Pa, 400 500 rpm, laju alir 2 liter/menit, 15 - 60 menit. Hasil menunjukan bahwa interaksi, pengadukan mempunyai terhadap reaksi antara Ca(OH)2, produk PCC yang dihasilkan. Kondisi operasi optimum diperoleh 9800 menit massa dihasilkan sebesar 7,99 gram.

Thermochemical CO2 Reduction to Methanol over Metal-Based Single-Atom Catalysts (SACs): Outlook and Challenges for Developments DOI

Huibo Zhao,

Xiaochen Liu,

Chunyang Zeng

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(34), P. 23649 - 23662

Published: Aug. 20, 2024

The conversion of thermodynamically inert CO

Language: Английский

Citations

17
Efficient Cu–Zn–Al/LDH Catalysts for CO2-to-Methanol Conversion DOI
Xing Cui, Mingsheng Luo, Yang Zhi

et al.

Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 28, 2025

Language: Английский

Citations

1
Reaction Mechanisms and Applications of Single Atom Catalysts for Thermal-Catalytic Carbon Dioxide Hydrogenation Toward Oxygenates DOI
Fei Wang, Yicheng Liu,

Mengke Peng

et al.

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(21), P. 16434 - 16458

Published: Oct. 23, 2024

Thermo-catalytic CO2 hydrogenation to high-value oxygenates has been regarded as one of the most powerful strategies that can potentially alleviate excessive emissions. However, due high chemical stability and variability pathways, it is still challenging achieve highly active selective hydrogenation. Single atom catalysts (SACs) with ultrahigh metal utilization efficiency extraordinary electronic features have displayed growing importance for thermo-catalytic multiple developed improve performances. Here, we review breakthroughs in developing SACs efficient toward common (CO, HCOOH, CH3OH, CH3CH2OH) following order: first, an analysis reaction mechanisms thermodynamics challenges reactions; second, a summary SAs designed by dividing them into two categories single- dual-sites; third, discussion support effects focus on approaches regulating strong metal–support interaction (MSI). Summarily, current future perspectives develop higher-performance are presented. We expect this bring more design inspiration trigger innovation catalytic evolution materials eventually benefit achievement carbon-neutrality goal.

Language: Английский

Citations

7
Single‐Atom Pt Loaded on MOF‐Derived Porous TiO2 with Maxim‐ized Pt Atom Utilization for Selective Hydrogenation of Halonitro‐benzene DOI

Mingchun Guo,

Qiangqiang Meng, Ming‐Liang Gao

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 29, 2024

Abstract The location control of single atoms relative to supports is challenging for single‐atom catalysts, leading a large proportion inaccessible buried under supports. Herein, “sequential thermal transition” strategy developed afford Pt preferentially dispersed on the outer surface TiO 2 . Specifically, Ti‐MOF confining nanoparticles converted NPs and composite coated by carbon (Pt &TiO @C‐800) at 800 °C in N Subsequent thermal‐driven atomization 600 air produce decorated 1 /TiO ‐600). resulting ‐600 exhibits superior p ‐chloroaniline ( ‐CAN) selectivity (99 %) ‐400 (45 much better activity than @TiO with randomly both outside inside hydrogenation ‐chloronitrobenzene ‐CNB). Mechanism investigations reveal that achieves 100 % accessibility preferably adsorbs –NO group ‐CNB while weakly –Cl ‐CAN, promoting catalytic selectivity.

Language: Английский

Citations

6
Multiscale structural regulation of Two-Dimensional materials for photocatalytic reduction of CO2 DOI

Junyan Wu,

Lina Zhao,

Xu Gao

et al.

Progress in Materials Science, Journal Year: 2024, Volume and Issue: unknown, P. 101386 - 101386

Published: Oct. 1, 2024

Language: Английский

Citations

5
Steering CO2 electroreduction to hydrocarbons over 2D thiol-based conductive metal-organic framework DOI

Qiu‐Jin Wu,

Duan‐Hui Si, Yuliang Dong

et al.

Science Bulletin, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

0
Room-temperature CO2-to-carbon conversion facilitated by copper-gallium liquid metal DOI
Xiao Dong Chen, Jiacheng Liu, Qing Wang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160589 - 160589

Published: Feb. 1, 2025

Language: Английский

Citations

0
Highly efficient photoenzymatic CO2 reduction via integrated structural design of porphyrin covalent organic framework on Ti3C2T (MXene) DOI
Zhipeng Huang, Shuli Bai,

Ping Wei

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132943 - 132943

Published: April 1, 2025

Language: Английский

Citations

0
In situ generated hydrogen-bonding microenvironment in functionalized MOF nanosheets for enhanced CO 2 electroreduction DOI Creative Commons
Ge Yang, Jiajia Huang,

Weizhi Gu

et al.

Proceedings of the National Academy of Sciences, Journal Year: 2025, Volume and Issue: 122(15)

Published: April 10, 2025

The microenvironment around catalytic sites plays crucial roles in enzymatic catalysis while its precise control heterogeneous catalysts remains challenging. Herein, the coordinatively unsaturated metal nodes of Hf-based metal-organic framework nanosheets are simultaneously codecorated with catalytically active Co(salen) units and adjacent pyridyl-substituted alkyl carboxylic acids via a post modification route. By varying acids, spatial positioning N atom pyridine group relative to can be precisely controlled. Notably, 3-(pyridin-4-yl)propionic acid, para -position atom, maximally improves electrocatalytic CO 2 reduction performance unit, far superior other counterparts. Mechanism investigations reveal that unit acid is optimally positioned undergoes situ pyridinyl radical under working potentials. This greatly facilitates stabilization *COOH intermediate hydrogen-bonding interaction, lowering formation energy barrier therefore boosting electroreduction.

Language: Английский

Citations

0
Switching low-temperature CO2 hydrogenation product selectivity over metal–organic framework derived Co-based catalyst DOI
Yanting Li,

Ying-Fei Huo,

Zhong Yang

et al.

Fuel, Journal Year: 2025, Volume and Issue: 396, P. 135399 - 135399

Published: April 15, 2025

Language: Английский

Citations

0