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10 protocols using h3bo3

1

Synthesis of C3N6H6·2H3BO3 Fibers

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A mixture of C3N6H6 and H3BO3 (analytical reagents, Sinopharm Chemical Reagent Co., Ltd.) with a molar ratio of 1 : 2 was added into de-ionized water and dissolved at 85 °C in a water bath with vigorous stirring; the concentration of C3N6H6·(H3BO3) was set as 0.08 mol L−1 (0.16 mol L−1) to ensure complete dissolution. Then, the hot aqueous solution was naturally cooled down to precipitate the C3N6H6·2H3BO3 (M·2B) flocculent. Subsequently, the white flocculent was frozen and dried using a vacuum freeze-dryer (LGJ-FD, Beijing Songyuan Huaxing Technology Develop Co., Ltd, China) to get well-dispersed M·2B fibers.
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2

Synthesis of Silica-based Inorganic Composites

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The chemical reagents used in the synthesis experiments include Ludox (SiO2, HS-40, 40 wt%, Sigma-Aldrich), DMAP (98 wt%, TCI Shanghai), germanium oxide (GeO2, 99.0 wt%, Sinopharm Chemical Reagent), aluminium hydroxide (Al(OH)3, 99.0 wt%, Sinopharm Chemical Reagent), boric acid (H3BO3, 99.0 wt%, Sinopharm Chemical Reagent), hydrofluoric acid (HF, 40 wt% in water solution, Sinopharm Chemical Reagent) and distilled water.
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3

Fabrication of Glass Composition

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The investigated glass composition,
shown in Table 1, was
chosen from a previous work.24 (link) The raw
materials used to fabricate this glass were analytic-grade CaCO3 (>99%), α-Al2O3 (>99%),
H3BO3 (>99.95%), Na2CO3 (>99.9%),
Li2CO3 (>99.9%), and SiO2 (>99%)
supplied by Sinopharm Group Co. Ltd. After removing moisture and thorough
mixing, mixtures of raw materials were transferred to a Pt crucible
and melted at 1723 K for 2 h. The melts were quenched into the water
to obtain the glassy sample. The sample was stored in an ambient environment
to follow the application conditions.
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4

Silk-Based Biomaterial Synthesis

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Silkworm cocoons were purchased from farmers in Nantong; carbic anhydride, Irgacure 2959 (I2959), and dithiothreitol (DTT) were purchased from Aladdin Reagent Co., Ltd.; Na2CO3, LiBr, H3BO3, Na2B4O7, NaOH, PEG (Mn = 20 000), ethanol were purchased from Sinopharm Chemical Reagent Co., Ltd.
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5

Extraction and Characterization of CYP Compound

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CYP
was collected from
the Planting Base of Tiegun Chinese yam in Jiaozuo,
Henan Province (China) in October 2020. Anhydrous ethanol, NaCl, MgCl2, Na2SO4, CaCl2, KCl, NaHCO3, KBr, H3BO3, SrCl2, and
NaF were purchased from Sinopharm Chemical Reagent Co., Ltd. (China).
All reagents were of analytical pure grade and utilized as received.
T1 copper sheets (purity: 99.9%) with the dimension of 50 × 25
× 2 mm3 were supplied by GRINM Group Co., Ltd. (China).
Lab-made ultrapure water (18.5 MΩ·cm2) was used
to prepare all solutions and for physical cleaning. Especially, ASW
was prepared according to the description in ASTM D1141-98 (2013),
as summarized in Table S1 (Supporting Information).
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6

Synthesis and Characterization of Laver

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Laver was purchased from Fujian Fuchang Food Company (Fujian, China). ZnCl2, KCl, H3BO3, HCl, Na2SO4 and KOH were purchased from Sinopharm Chemical Regent Co., Ltd. (Shanghai, China). N-methyl-2-pyrrolidone (NMP), LiPF6, Polyvinylidene fluoride (PVDF) and 1-butyl-3-methylimidazolium tetrafluoroborate/acetonitrile (BMIMBF4/AN) electrolyte were purchased from Beijing Saibo New Chemical Materials Co., Ltd. (Beijing, China).
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7

Glass Composition and Fabrication for Multilayer Electronics

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The composition of CaO-Al2O3-B2O3-SiO2 glass was selected in this study. Reagent-grade raw materials, CaCO3 (AR, Sinopharm, Nanjing, China), Al2O3 (AR, Sinopharm, Nanjing, China), and SiO2 (AR, Sinopharm, Nanjing, China), were mixed with H3BO3 (AR, Sinopharm, Nanjing, China) (Table 1). The resulting powders were melted at 1400 °C for 2 h and then were quenched in deionized water. The mechanical crushing of the quenched glass was performed to form a glass frit. The insulating pastes were prepared by mixing the 25 wt % organic solvent composed of terpineol and ethyl cellulose with 75 wt % glass.
The sample had a laminated structure on the surface of the alumina substrate. With the help of screen-printing technology, the insulating paste was printed between the conductive layers, which were formed by Ag paste (F14015, 3Focus Co., Guangzhou, China) and sintered step-by-step to form a three-layer structure. The Ag layers were sintered at 850 °C for 15 min, whereas the insulating film was sintered at 825–900 °C for 30 min.
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8

Quantitative Analysis of Carbohydrates

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D-ribose, L-ribose, AgNO3, H3BO3, CH3COOH, H3PO4, NaOH, HCl were purchased from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China). β-cyclodextrin (β-CD, C42H70O35, molecular weight is 1134.99) composed of D-glucose was purchased from Sangon Biotechnology Inc. (Shanghai, China). High-purity water was used in this study. All the chemicals were used as received without further purification.
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9

Flame-Retardant Polypropylene Composite Synthesis

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Materials were procured as follows: polypropylene (average molecular weight ca. 300,000, The Dow Chemical Company, Midland, MI, USA), Mg(NO3)2·6H2O (AR, Sinopharm Chemical Reagent Co., Ltd., Shanghai, China), Al(NO3)3·9H2O (AR, Sinopharm Chemical Reagent Co., Ltd., Shanghai, China), APP (Adamas-beta Company, Basel, Switzerland), Na2B4O7·10H2O (AR, Sinopharm Chemical Reagent Co., Ltd., Shanghai, China), ZnSO4·7H2O (AR, Sinopharm Chemical Reagent Co., Ltd., Shanghai, China), H3BO3 (AR, Sinopharm Chemical Reagent Co., Ltd., Shanghai, China), acetone (AR, Beijing Chemical Works, Beijing, China), sodium hydroxide (AR, Sinopharm Chemical Reagent Co., Ltd., Shanghai, China), xylene (AR, Beijing Chemical Works, Beijing, China), and hexane (AR, Sinopharm Chemical Reagent Co., Ltd., Shanghai, China).
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10

Analytical Techniques for Biochemical Compounds

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All the chemical reagents used in the experiment were of analytical grade or higher purity. ACE, ethanol (EtOH), tert-butyl alcohol (TBA), ascorbic acid (AA), Na3 citrate·2H2O, NaOH, urea, NaCl, KCl, NH4OH, NaH2PO4·2H2O, MgCl2·6H2O, CaCl2·2H2O, NH4HCO3, NaHCO3, H2SO4, Na2S2O3, Na2SO4, H3BO3, Na2B4O7·10H2O, and KI were obtained from Sinopharm (China). Creatine, creatinine, hippuric acid, nitrobenzene (NB), furfuryl alcohol (FFA), nitro blue tetrazolium (NBT), l-histidine (l-his), and trifluoroacetic acid were supplied by Aladdin Chemicals. Methanol and acetonitrile were purchased from CNW Technologies GmbH (Germany). The preparation of the matrices involved dissolution in ultrapure water (18.2 MΩ cm−1).
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